阅读说明：本技术 通信先占适用性技术 (Communication preemption applicability techniques ) 是由 S·侯赛尼 张晓霞 陈万士 A·里克阿尔瓦里尼奥 杨桅 于 2020-05-12 设计创作，主要内容包括：基站可以将(例如,时域、频域、空域中的)上行链路和/或下行链路资源分配给用户装备(UE)或UE群,这些上行链路和/或下行链路资源随后被重新分配。例如,基站可以确定上行链路资源和/或下行链路资源的重新分配,并且可发出可以与先前分配的资源的至少一部分相对应的取消指示或先占指示符。UE可以被配置为监视取消或先占指示符,并且基于所接收到的取消或先占指示符,UE可以确定是否要使用它们先前分配的资源继续进行上行链路传输或下行链路接收。在一些情形中,取消或先占指示符的应用规则可以由UE和/或基站基于话务优先化和取消指示优先化、基于要由UE传送的被调度参考信号的类型等来标识。(A base station may allocate uplink and/or downlink resources (e.g., in the time domain, frequency domain, and space domain) to a User Equipment (UE) or group of UEs, which are then reallocated. For example, the base station may determine a reallocation of uplink resources and/or downlink resources and may issue a cancellation indication or a preemption indicator that may correspond to at least a portion of previously allocated resources. The UEs may be configured to monitor for a cancellation or preemption indicator and, based on the received cancellation or preemption indicator, the UEs may determine whether to continue uplink transmission or downlink reception using their previously allocated resources. In some cases, the application rule of the cancellation or preemption indicator may be identified by the UE and/or the base station based on traffic prioritization and cancellation indication prioritization, based on the type of scheduled reference signal to be transmitted by the UE, and so on.)

1. A method for wireless communication at a User Equipment (UE), comprising:

Receiving, at the UE, a downlink control message that schedules transmission of an uplink message by the UE using a plurality of time and frequency resources;

receiving, at the UE, an uplink preemption indicator, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the plurality of time and frequency resources; and

refrain from transmitting the uplink message in the one or more spatial directions during at least the portion of the plurality of time and frequency resources based at least in part on the uplink preemption indicator.

2. The method of claim 1, further comprising:

transmitting the uplink message in a spatial direction different from the one or more spatial directions identified by the uplink preemption indicator during at least the portion of the plurality of time and frequency resources.

3. The method of claim 1, further comprising:

identifying that the uplink preemption indicator comprises one or more bits corresponding to a sounding reference signal resource indicator; and

determining the one or more spatial directions based at least in part on the one or more bits.

4. The method of claim 3, wherein determining the one or more spatial directions comprises:

identifying, based at least in part on the one or more bits, one or more panels for which transmissions by the UE are preempted during at least the portion of the plurality of time and frequency resources, wherein the one or more spatial directions are determined based at least in part on the identified one or more panels.

5. The method of claim 3, wherein determining the one or more spatial directions comprises:

identifying, based at least in part on the one or more bits, one or more beams on which transmissions by the UE are preempted during at least the portion of the plurality of time and frequency resources, wherein the one or more spatial directions are determined based at least in part on the identified one or more beams.

6. The method of claim 3, wherein determining the one or more spatial directions comprises:

identifying, based at least in part on the one or more bits, one or more precoders with which transmissions by the UE are preempted during at least the portion of the plurality of time and frequency resources, wherein the one or more spatial directions are determined based at least in part on the identified one or more precoders.

7. The method of claim 1, wherein the uplink preemption indicator comprises a bit sequence in downlink control information.

8. The method of claim 7, wherein a first subset of the bit sequence indicates the portion of the plurality of time and frequency resources and a second subset of the bit sequence indicates the one or more spatial directions.

9. The method of claim 8, further comprising:

receiving radio resource control signaling indicating a relationship between the second subset of the bit sequences and the one or more spatial directions.

10. The method of claim 9, wherein the relationship indicates a mapping of one or more sounding reference signal resource indicators to one or more bit values represented by the second subset of the bit sequence.

11. A method for wireless communication at a User Equipment (UE), comprising:

identifying, at the UE, that the UE is scheduled to transmit a positioning reference signal using a plurality of time and frequency resources;

receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the plurality of time and frequency resources in which transmissions by the UE are preempted;

Identifying a rule regarding applying the uplink preemption indicator to a scheduled positioning reference signal; and

transmitting the scheduled positioning reference signal according to the rule.

12. The method of claim 11, wherein transmitting the scheduled positioning reference signal according to the rule comprises:

refraining from transmitting the positioning reference signal using the portion of the plurality of time and frequency resources based at least in part on applying the uplink preemption indicator to the scheduled positioning reference signal according to the rule.

13. The method of claim 11, wherein transmitting the scheduled positioning reference signal according to the rule comprises:

transmitting the positioning reference signal using the plurality of time and frequency resources regardless of whether the uplink preemption indicator indicates at least the portion of the plurality of time and frequency resources.

14. The method of claim 11, wherein the rule comprises applying the uplink preemption indicator to the scheduled positioning reference signal based at least in part on a priority of the positioning reference signal.

15. The method of claim 11, further comprising:

Receiving an indication of the rule, wherein the rule is identified based at least in part on the indication.

16. The method of claim 11, further comprising:

determining that the portion of the plurality of time and frequency resources in which transmissions by the UE are preempted correspond to the plurality of time and frequency resources, wherein the rule is identified based at least in part on the determination.

17. The method of claim 11, wherein the positioning reference signal is a sounding reference signal comprising a usage indication that the sounding reference signal is to be used for positioning, wherein applying the uplink preemption indicator to the scheduled positioning reference signal is based at least in part on the usage indication.

18. The method of claim 17, wherein the rule is identified based at least in part on the usage indication.

19. A method for wireless communication at a User Equipment (UE), comprising:

receiving, at the UE, a downlink control message scheduling a plurality of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different downlink traffic;

Receiving a downlink preemption indicator at the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the plurality of time and frequency resources;

identifying a rule to apply the downlink preemption indicator; and

receiving the one or more communications according to the rule.

20. The method of claim 19, further comprising:

identifying a channel priority list;

identifying a priority of the one or more communications; and

identifying a priority of the downlink preemption indicator, wherein the rule to apply the downlink preemption indicator is based at least in part on the channel priority list and a comparison of a priority of the one or more communications to a priority of the downlink preemption indicator.

21. The method of claim 20, wherein the channel priority list is identified based at least in part on a format of the downlink control message, a size of the downlink control message, a radio network temporary identifier of the downlink control message, a search space or a set of control resources for monitoring the downlink control message, an indication in the downlink control message, or some combination thereof.

22. The method of claim 20, wherein the priority of the downlink preemption indicator is identified based at least in part on a bit sequence included in the downlink preemption indicator, a radio network temporary identifier of the downlink preemption indicator, a monitoring occasion for the downlink preemption indicator, or some combination thereof.

23. The method of claim 19, further comprising:

receiving, at the UE, an indication of the rule in radio resource control signaling, the downlink control message, or both.

24. The method of claim 23, wherein the indication comprises a priority indication for at least a portion of a plurality of time and frequency resources scheduled for downlink communications.

25. The method of claim 19, further comprising:

receiving, at the UE, a downlink preemption indicator monitoring configuration in a system information block.

26. The method of claim 25, further comprising:

identifying a radio network temporary identifier; and

decoding the downlink preemption indicator based at least in part on the identified radio network temporary identifier and the received downlink preemption indicator monitoring configuration.

27. The method of claim 19, further comprising:

identifying, from the downlink control message, a set of time and frequency resources comprising the plurality of time and frequency resources for downlink communications, wherein the downlink preemption indicator indicates one or more preempted communications based at least in part on the set of time and frequency resources.

28. The method of claim 19, further comprising:

identifying, from the downlink control message, a set of time and frequency resources comprising one or more multimedia broadcast multicast service symbols, wherein the downlink preemption indicator indicates one or more preempted communications based at least in part on the set of time and frequency resources.

29. The method of claim 19, further comprising:

identifying, from the downlink control message, a set of time and frequency resources comprising one or more uplink symbols, wherein the downlink preemption indicator indicates one or more preempted communications based at least in part on the set of time and frequency resources.

30. An apparatus for wireless communication at a User Equipment (UE), comprising:

Means for receiving, at the UE, a downlink control message scheduling transmission of an uplink message by the UE using a plurality of time and frequency resources;

means for receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the plurality of time and frequency resources; and

means for refraining from transmitting the uplink message in the one or more spatial directions during at least the portion of the plurality of time and frequency resources based at least in part on the uplink preemption indicator.

31. The apparatus of claim 30, further comprising:

means for transmitting the uplink message in a spatial direction different from the one or more spatial directions identified by the uplink preemption indicator during at least the portion of the plurality of time and frequency resources.

32. The apparatus of claim 30, further comprising:

means for identifying that the uplink preemption indicator comprises one or more bits corresponding to a sounding reference signal resource indicator; and

Means for determining the one or more spatial directions based at least in part on the one or more bits.

33. The apparatus of claim 32, wherein the means for determining the one or more spatial directions further comprises:

means for identifying one or more panels on which transmissions by the UE are preempted during at least the portion of the plurality of time and frequency resources based at least in part on the one or more bits, wherein the one or more spatial directions are determined based at least in part on the identified one or more panels.

34. The apparatus of claim 32, wherein the means for determining the one or more spatial directions further comprises:

means for identifying one or more beams on which transmissions by the UE are preempted during at least the portion of the plurality of time and frequency resources based at least in part on the one or more bits, wherein the one or more spatial directions are determined based at least in part on the identified one or more beams.

35. The apparatus of claim 32, wherein the means for determining the one or more spatial directions further comprises:

Means for identifying one or more precoders that are preempted for transmission by the UE during at least the portion of the plurality of time and frequency resources based at least in part on the one or more bits, wherein the one or more spatial directions are determined based at least in part on the identified one or more precoders.

36. The apparatus of claim 30, wherein the uplink preemption indicator comprises a bit sequence in downlink control information.

37. The apparatus of claim 36, wherein a first subset of the bit sequence indicates the portion of the plurality of time and frequency resources and a second subset of the bit sequence indicates the one or more spatial directions.

38. The apparatus of claim 37, further comprising:

means for receiving radio resource control signaling indicating a relationship between the second subset of the bit sequences and the one or more spatial directions.

39. The apparatus of claim 38, wherein the relationship indicates a mapping of one or more sounding reference signal resource indicators to one or more bit values represented by a second subset of the bit sequence.

40. An apparatus for wireless communication at a User Equipment (UE), comprising:

means for identifying, at the UE, that the UE is scheduled to transmit a positioning reference signal using a plurality of time and frequency resources;

means for receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the plurality of time and frequency resources in which transmissions by the UE are preempted;

means for identifying a rule regarding applying the uplink preemption indicator to a scheduled positioning reference signal; and

means for transmitting the scheduled positioning reference signal according to the rule.

41. The apparatus of claim 40, wherein means for transmitting the scheduled positioning reference signal according to the rule further comprises:

means for refraining from transmitting the positioning reference signal using the portion of the plurality of time and frequency resources based at least in part on applying the uplink preemption indicator to the scheduled positioning reference signal according to the rule.

42. The apparatus of claim 40, wherein means for transmitting the scheduled positioning reference signal according to the rule further comprises:

Means for transmitting the positioning reference signal using the plurality of time and frequency resources regardless of the uplink preemption indicator indicating at least the portion of the plurality of time and frequency resources.

43. The device of claim 40, wherein the rule comprises applying the uplink preemption indicator to the scheduled positioning reference signal based at least in part on a priority of the positioning reference signal.

44. The apparatus of claim 40, further comprising:

means for receiving an indication of the rule, wherein the rule is identified based at least in part on the indication.

45. The apparatus of claim 40, further comprising:

means for determining that the portion of the plurality of time and frequency resources in which transmissions by the UE are preempted correspond to the plurality of time and frequency resources, wherein the rule is identified based at least in part on the determination.

46. The device of claim 40, wherein the positioning reference signal is a sounding reference signal comprising a usage indication that the sounding reference signal is to be used for positioning, wherein applying the uplink preemption indicator to the scheduled positioning reference signal is based at least in part on the usage indication.

47. The apparatus of claim 46, wherein the rule is identified based at least in part on the usage indication.

48. An apparatus for wireless communication at a User Equipment (UE), comprising:

means for receiving, at the UE, a downlink control message scheduling a plurality of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different downlink traffic;

means for receiving a downlink preemption indicator at the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the plurality of time and frequency resources;

means for identifying a rule to apply the downlink preemption indicator; and

means for receiving the one or more communications according to the rule.

49. The apparatus of claim 48, further comprising:

means for identifying a channel priority list;

Means for identifying a priority of the one or more communications; and

means for identifying a priority of the downlink preemption indicator, wherein the rule to apply the downlink preemption indicator is based at least in part on the channel priority list and a comparison of a priority of the one or more communications to a priority of the downlink preemption indicator.

50. The apparatus of claim 49, wherein the channel priority list is identified based at least in part on a format of the downlink control message, a size of the downlink control message, a radio network temporary identifier of the downlink control message, a search space or a set of control resources for monitoring the downlink control message, an indication in the downlink control message, or some combination thereof.

51. The apparatus of claim 49, wherein the priority of the downlink preemption indicator is identified based at least in part on a bit sequence included in the downlink preemption indicator, a radio network temporary identifier of the downlink preemption indicator, a monitoring occasion for the downlink preemption indicator, or some combination thereof.

52. The apparatus of claim 48, further comprising:

means for receiving, at the UE, an indication of the rule in radio resource control signaling, the downlink control message, or both.

53. The apparatus of claim 52, wherein the indication comprises a priority indication for at least a portion of a plurality of time and frequency resources scheduled for downlink communications.

54. The apparatus of claim 48, further comprising:

means for receiving a downlink preemption indicator monitoring configuration in a system information block at the UE.

55. The apparatus of claim 54, further comprising:

means for identifying a radio network temporary identifier; and

means for decoding the downlink preemption indicator based at least in part on the identified radio network temporary identifier and the received downlink preemption indicator monitoring configuration.

56. The apparatus of claim 48, further comprising:

means for identifying, from the downlink control message, a set of time and frequency resources comprising the plurality of time and frequency resources for downlink communications, wherein the downlink preemption indicator indicates one or more preempted communications based at least in part on the set of time and frequency resources.

57. The apparatus of claim 48, further comprising:

means for identifying a set of time and frequency resources comprising one or more multimedia broadcast multicast service symbols from the downlink control message, wherein the downlink preemption indicator indicates one or more preempted communications based at least in part on the set of time and frequency resources.

58. The apparatus of claim 48, further comprising:

means for identifying a set of time and frequency resources comprising one or more uplink symbols from the downlink control message, wherein the downlink preemption indicator indicates one or more preempted communications based at least in part on the set of time and frequency resources.

59. An apparatus for wireless communication at a User Equipment (UE), comprising:

a processor;

a memory in electronic communication with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

receiving, at the UE, a downlink control message that schedules transmission of an uplink message by the UE using a plurality of time and frequency resources;

Receiving, at the UE, an uplink preemption indicator, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the plurality of time and frequency resources; and

refrain from transmitting the uplink message in the one or more spatial directions during at least the portion of the plurality of time and frequency resources based at least in part on the uplink preemption indicator.

60. An apparatus for wireless communication at a User Equipment (UE), comprising:

a processor;

a memory in electronic communication with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

identifying, at the UE, that the UE is scheduled to transmit a positioning reference signal using a plurality of time and frequency resources;

receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the plurality of time and frequency resources in which transmissions by the UE are preempted;

identifying a rule regarding applying the uplink preemption indicator to a scheduled positioning reference signal; and

Transmitting the scheduled positioning reference signal according to the rule.

61. An apparatus for wireless communication at a User Equipment (UE), comprising:

a processor;

a memory in electronic communication with the processor; and

instructions stored in the memory and executable by the processor to cause the apparatus to:

receiving, at the UE, a downlink control message scheduling a plurality of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different downlink traffic;

receiving a downlink preemption indicator at the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the plurality of time and frequency resources;

identifying a rule to apply the downlink preemption indicator; and

receiving the one or more communications according to the rule.

62. A non-transitory computer-readable medium storing code for wireless communication at a User Equipment (UE), the code comprising instructions executable by a processor for:

Receiving, at the UE, a downlink control message that schedules transmission of an uplink message by the UE using a plurality of time and frequency resources;

receiving, at the UE, an uplink preemption indicator, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the plurality of time and frequency resources; and

refrain from transmitting the uplink message in the one or more spatial directions during at least the portion of the plurality of time and frequency resources based at least in part on the uplink preemption indicator.

63. A non-transitory computer-readable medium storing code for wireless communication at a User Equipment (UE), the code comprising instructions executable by a processor for:

identifying, at the UE, that the UE is scheduled to transmit a positioning reference signal using a plurality of time and frequency resources;

receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the plurality of time and frequency resources in which transmissions by the UE are preempted;

Identifying a rule regarding applying the uplink preemption indicator to a scheduled positioning reference signal; and

transmitting the scheduled positioning reference signal according to the rule.

64. A non-transitory computer-readable medium storing code for wireless communication at a User Equipment (UE), the code comprising instructions executable by a processor for:

receiving, at the UE, a downlink control message scheduling a plurality of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different downlink traffic;

receiving a downlink preemption indicator at the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the plurality of time and frequency resources;

identifying a rule to apply the downlink preemption indicator; and

receiving the one or more communications according to the rule.

Background

The following relates generally to wireless communications and more particularly to communication preemption applicability techniques.

Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be able to support communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth generation (4G) systems, such as Long Term Evolution (LTE) systems, LTE-advanced (LTE-a) systems, or LTE-a Pro systems, and fifth generation (5G) systems that may be referred to as New Radio (NR) systems. These systems may employ various techniques, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communication system may include several base stations or network access nodes, each supporting communication for multiple communication devices simultaneously, which may otherwise be referred to as User Equipment (UE).

Disclosure of Invention

The described technology relates to improved methods, systems, devices, and apparatus to support communication preemption applicability techniques. In some examples, a base station or other network entity may allocate uplink and/or downlink resources to a UE or group of UEs, which are then reallocated (e.g., based on re-prioritization of communications) to other UEs or groups of UEs. For example, the base station may determine a reallocation of uplink or downlink resources and issue a cancellation indication (e.g., an uplink preemption indicator (ULPI) or a downlink preemption indicator (DLPI)) that may correspond to at least a portion of previously allocated resources (e.g., allocated to a particular UE). The UEs may be configured to monitor for a cancellation indication, and based on the received cancellation indication, the UEs may determine whether to continue uplink transmission and/or downlink reception using their previously allocated resources.

For example, a cancellation indication (such as ULPI) may be used to prevent the UE from using at least a portion of previously allocated uplink resources for uplink transmissions, which may thus support dynamic allocation of uplink resources from communications associated with one latency threshold to communications associated with another latency threshold. For example, resources originally allocated for enhanced mobile broadband (eMBB) communications may be reallocated to ultra-reliable low latency communications (URLLC) (to more performance sensitive communications, higher priority traffic, etc.). In one example, an eMBB UE decoding the uplink cancellation indication message may cancel or otherwise preempt the uplink transmission (e.g., partially or fully depending on whether ULPI applies to the allocated resources corresponding to the uplink transmission).

In some cases, ULPI may be used to indicate one or more beams or spatial directions (e.g., to a Transmit Reception Point (TRP), etc.) to be preempted by a UE for uplink transmissions. For example, in some cases, the base station may identify that only a subset of resources (e.g., spatial directions, beams, etc.) on which the UE is transmitting may be reclaimed. In such cases, ULPI may be used to indicate such one or more spatial directions in which transmissions by the UE are preempted. The UE may thus receive the ULPI, refrain from transmitting uplink messages in the one or more spatial directions, and in some cases, transmit uplink messages in a spatial direction different from the one or more spatial directions identified by the ULPI.

According to some examples, a particular UE may ignore a cancellation indication, such as when the cancellation indication is intended to suspend uplink transmissions from other UEs in order to reallocate uplink resources to the particular UE or a type of traffic to be transmitted by the particular UE. In some cases, the applicability of the cancellation indication may be based on the content of the UE uplink transmission. For example, in some cases, there may be rules that apply a cancellation indication (which may be referred to as cancellation rules, preemption applicability rules, etc.) (e.g., application rules for ULPI, application rules for DLPI, etc.). Thus, in accordance with these and other examples, various types of uplink resource allocations may be cancelled, preempted, or reallocated, thereby supporting dynamic redistribution of uplink resources in a wireless communication system that more effectively balances performance and resource utilization of communications according to different priorities.

A method of wireless communication at a UE is described. The method can comprise the following steps: receiving, at a UE, a downlink control message that schedules transmission of an uplink message by the UE using a set of time and frequency resources; receiving, at the UE, an uplink preemption indicator, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and refrain from transmitting an uplink message in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator.

An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: the method includes receiving, at a UE, a downlink control message scheduling transmission of an uplink message by the UE using a set of time and frequency resources, receiving, at the UE, an uplink preemption indicator, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources, and refraining from transmitting the uplink message in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator.

Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving, at a UE, a downlink control message that schedules transmission of an uplink message by the UE using a set of time and frequency resources; receiving, at the UE, an uplink preemption indicator, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and refrain from transmitting an uplink message in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator.

A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: receiving, at a UE, a downlink control message that schedules transmission of an uplink message by the UE using a set of time and frequency resources; receiving, at the UE, an uplink preemption indicator, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and refrain from transmitting an uplink message in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: transmitting the uplink message in a spatial direction different from the one or more spatial directions identified by the uplink preemption indicator during at least the portion of the set of time and frequency resources. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: identifying the uplink preemption indicator includes one or more bits corresponding to a sounding reference signal resource indicator and determining the one or more spatial directions based on the one or more bits.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, determining the one or more spatial directions may include operations, features, apparatuses, or instructions for: identifying one or more panels based on the one or more bits for which transmissions by the UE may be preempted during at least the portion of the set of time and frequency resources, wherein the one or more spatial directions may be determined based on the identified one or more panels. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, determining the one or more spatial directions may include operations, features, apparatuses, or instructions for: identifying, based at least in part on the one or more bits, one or more beams on which transmissions by the UE are preempted during at least the portion of the plurality of time and frequency resources, wherein the one or more spatial directions are determined based at least in part on the identified one or more beams. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, determining the one or more spatial directions may include operations, features, apparatuses, or instructions for: identifying one or more precoders based on the one or more bits that a transmission by the UE may be preempted during at least the portion of the set of time and frequency resources, wherein the one or more spatial directions may be determined based on the identified one or more precoders.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the uplink preemption indicator comprises a sequence of bits in downlink control information. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, a first subset of the bit sequence indicates the portion of the set of time and frequency resources and a second subset of the bit sequence indicates the one or more spatial directions. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: radio resource control signaling is received indicating a relationship between the second subset of the bit sequences and the one or more spatial directions. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the relationship indicates a mapping of one or more sounding reference signal resource indicators to one or more bit values represented by the second subset of the bit sequence.

A method of wireless communication at a UE is described. The method can comprise the following steps: identifying, at the UE, that the UE is scheduled to transmit a positioning reference signal using a set of time and frequency resources; receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule to apply an uplink preemption indicator to a scheduled positioning reference signal; and transmitting the scheduled positioning reference signal according to the rule.

An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: identifying, at the UE, that the UE is scheduled to transmit a positioning reference signal using a set of time and frequency resources; receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule to apply an uplink preemption indicator to a scheduled positioning reference signal; and transmitting the scheduled positioning reference signal according to the rule.

Another apparatus for wireless communication at a UE is described. The apparatus may include means for: identifying, at the UE, that the UE is scheduled to transmit a positioning reference signal using a set of time and frequency resources; receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule to apply an uplink preemption indicator to a scheduled positioning reference signal; and transmitting the scheduled positioning reference signal according to the rule.

A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: identifying, at the UE, that the UE is scheduled to transmit a positioning reference signal using a set of time and frequency resources; receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule to apply an uplink preemption indicator to a scheduled positioning reference signal; and transmitting the scheduled positioning reference signal according to the rule.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, transmitting scheduled positioning reference signals according to the rule may include operations, features, means, or instructions for: refraining from transmitting a positioning reference signal using the portion of the set of time and frequency resources based on applying the uplink preemption indicator to the scheduled positioning reference signal according to the rule. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, transmitting scheduled positioning reference signals according to the rule may include operations, features, means, or instructions for: the positioning reference signal is transmitted using the set of time and frequency resources regardless of whether the uplink preemption indicator indicates at least the portion of the set of time and frequency resources. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the rule may include applying an uplink preemption indicator to a scheduled positioning reference signal based at least in part on a priority of the positioning reference signal.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: an indication of a rule is received, wherein the rule may be identified based on the indication. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: determining that the portion of the set of time and frequency resources in which transmissions by the UE may be preempted corresponds to the set of time and frequency resources, wherein a rule may be identified based on the determination. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, a positioning reference signal may be a sounding reference signal that includes a usage indication that the sounding reference signal is available for positioning, wherein applying an uplink preemption indicator to a scheduled positioning reference signal may be based on the usage indication. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the rules may be identified based on the usage indication.

A method of wireless communication at a UE is described. The method can comprise the following steps: receiving, at a UE, a downlink control message scheduling a set of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different downlink traffic; receiving a downlink preemption indicator at a UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of a set of time and frequency resources; identifying a rule to apply a downlink preemption indicator; and receiving the one or more communications according to the rule.

An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: receiving, at a UE, a downlink control message scheduling a set of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different downlink traffic; receiving a downlink preemption indicator at a UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of a set of time and frequency resources; identifying a rule to apply a downlink preemption indicator; and receiving the one or more communications according to the rule.

Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving, at a UE, a downlink control message scheduling a set of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different downlink traffic; receiving a downlink preemption indicator at a UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of a set of time and frequency resources; identifying a rule to apply a downlink preemption indicator; and receiving the one or more communications according to the rule.

A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: receiving, at a UE, a downlink control message scheduling a set of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different downlink traffic; receiving a downlink preemption indicator at a UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of a set of time and frequency resources; identifying a rule to apply a downlink preemption indicator; and receiving the one or more communications according to the rule.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: identifying a channel priority list; identifying a priority of one or more communications; and identifying a priority of the downlink preemption indicator, wherein the rule to apply the downlink preemption indicator can be based on a channel priority list and a comparison of a priority of one or more communications to the priority of the downlink preemption indicator. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the channel priority list may be identified based on a format of the downlink control message, a size of the downlink control message, a radio network temporary identifier of the downlink control message, a search space or a set of control resources for monitoring the downlink control message, an indication in the downlink control message, or some combination thereof.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the priority of the downlink preemption indicator can be identified based on a bit sequence included in the downlink preemption indicator, a radio network temporary identifier of the downlink preemption indicator, a monitoring occasion for the downlink preemption indicator, or some combination thereof. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: an indication of the rule is received at the UE in radio resource control signaling, a downlink control message, or both.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the indication comprises a priority indication for at least a portion of a set of scheduled time and frequency resources for downlink communications. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: a downlink preemption indicator monitoring configuration is received in a system information block at a UE. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: identifying a radio network temporary identifier; and decoding a downlink preemption indicator based on the identified radio network temporary identifier and the received downlink preemption indicator monitoring configuration.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: a set of time and frequency resources including the set of time and frequency resources for downlink communications is identified from the downlink control message, wherein the downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: identifying, from the downlink control message, a set of time and frequency resources comprising one or more multimedia broadcast multicast service symbols, wherein the downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: a set of time and frequency resources including one or more uplink symbols is identified from the downlink control message, wherein the downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources.

A method of wireless communication at a base station is described. The method can comprise the following steps: transmitting a downlink control message to the UE scheduling transmission of an uplink message by the UE using a set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and monitoring for an uplink message during at least the portion of the set of time and frequency resources based on the transmitted uplink preemption indicator.

An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: transmitting a downlink control message to the UE scheduling transmission of an uplink message by the UE using a set of time and frequency resources, transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and monitoring for an uplink message during at least the portion of the set of time and frequency resources based on the transmitted uplink preemption indicator.

Another apparatus for wireless communication at a base station is described. The apparatus may include means for: transmitting a downlink control message to the UE scheduling transmission of an uplink message by the UE using a set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and monitoring for an uplink message during at least the portion of the set of time and frequency resources based on the transmitted uplink preemption indicator.

A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmitting a downlink control message to the UE scheduling transmission of an uplink message by the UE using a set of time and frequency resources, transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and monitoring for an uplink message during at least the portion of the set of time and frequency resources based on the transmitted uplink preemption indicator.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: the uplink message is received in a spatial direction different from the one or more spatial directions indicated by the uplink preemption indicator during at least the portion of the set of time and frequency resources. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: identifying that traffic of another UE may have a first priority that may be higher than a second priority of the uplink message; and identifying one or more spatial directions in which transmissions by the UE may be preempted based on identifying that traffic of another UE may have a first priority that may be higher than a second priority of the uplink message.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: identifying one or more bits corresponding to a sounding reference signal resource indicator based on the identified one or more spatial directions, wherein the uplink preemption indicator can indicate the one or more spatial directions based on the sounding reference signal resource indicator. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: identifying one or more precoders during at least the portion of the set of time and frequency resources on which transmissions by the UE may be preempted, wherein a sounding reference signal resource indicator may be identified based on the one or more precoders.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the uplink preemption indicator comprises a sequence of bits in downlink control information. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, a first subset of the bit sequence indicates the portion of the set of time and frequency resources and a second subset of the bit sequence indicates the one or more spatial directions. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: transmitting radio resource control signaling indicating a relationship between the second subset of the bit sequences and the one or more spatial directions. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the relationship indicates a mapping of one or more sounding reference signal resource indicators to one or more bit values represented by the second subset of the bit sequence.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, monitoring uplink messages based on transmitted uplink preemption indicators can include operations, features, apparatuses, or instructions to: monitoring for uplink messages in a spatial direction different from the one or more spatial directions indicated by the uplink preemption indicator during at least the portion of the set of time and frequency resources.

A method of wireless communication at a base station is described. The method can comprise the following steps: transmitting a downlink message to the UE scheduling transmission of positioning reference signals by the UE using a set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule for the UE to apply the uplink preemption indicator to the scheduled positioning reference signal; and monitoring the scheduled positioning reference signal based on the rule.

An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: transmitting a downlink message to the UE scheduling transmission of positioning reference signals by the UE using a set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule for the UE to apply the uplink preemption indicator to the scheduled positioning reference signal; and monitoring the scheduled positioning reference signal based on the rule.

Another apparatus for wireless communication at a base station is described. The apparatus may include means for: transmitting a downlink message to the UE scheduling transmission of positioning reference signals by the UE using a set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule for the UE to apply the uplink preemption indicator to the scheduled positioning reference signal; and monitoring the scheduled positioning reference signal based on the rule.

A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmitting a downlink message to the UE scheduling transmission of positioning reference signals by the UE using a set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule for the UE to apply the uplink preemption indicator to the scheduled positioning reference signal; and monitoring the scheduled positioning reference signal based on the rule.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, monitoring scheduled positioning reference signals based on rules may include operations, features, means, or instructions for: refraining from using the portion of the set of time and frequency resources to monitor for positioning reference signals based on a rule. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: the set of time and frequency resources is used to receive positioning reference signals based on a rule regardless of whether the uplink preemption indicator indicates at least the portion of the set of time and frequency resources.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions to: an indication of the rule is transmitted to the UE. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: determining that the portion of the set of time and frequency resources in which transmissions by the UE may be preempted corresponds to the set of time and frequency resources, wherein a rule may be identified based on the determination. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, a positioning reference signal may be a sounding reference signal that includes a usage indication that the sounding reference signal is available for positioning. In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the rules may be identified based on the usage indication.

A method of wireless communication at a base station is described. The method can comprise the following steps: transmitting a downlink control message to the UE scheduling a set of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different DL traffic; transmitting a downlink preemption indicator to the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources; identifying a rule for the UE to apply a downlink preemption indicator; and monitoring the one or more communications based on the rule.

An apparatus for wireless communication at a base station is described. The apparatus may include a processor, a memory in electronic communication with the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: transmitting a downlink control message to the UE scheduling a set of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different DL traffic; transmitting a downlink preemption indicator to the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources; identifying a rule for the UE to apply a downlink preemption indicator; and monitoring the one or more communications based on the rule.

Another apparatus for wireless communication at a base station is described. The apparatus may include means for: transmitting a downlink control message to the UE scheduling a set of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different DL traffic; transmitting a downlink preemption indicator to the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources; identifying a rule for the UE to apply a downlink preemption indicator; and monitoring the one or more communications based on the rule.

A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmitting a downlink control message to the UE scheduling a set of time and frequency resources for downlink communications, the downlink communications comprising at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different DL traffic; transmitting a downlink preemption indicator to the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources; identifying a rule for the UE to apply a downlink preemption indicator; and monitoring the one or more communications based on the rule.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: identifying a channel priority list; identifying a priority of one or more communications; and identifying a priority of the downlink preemption indicator, wherein a rule regarding the UE applying the downlink preemption indicator can be based on a channel priority list and a comparison of a priority of one or more communications to the priority of the downlink preemption indicator.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: a format of the downlink control message, a size of the downlink control message, a radio network temporary identifier of the downlink control message, a search space or a set of control resources for monitoring the downlink control message, an indication in the downlink control message, or some combination thereof, is determined based on a channel priority list, which may be indicated to the UE based on the determination.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: the method may further include determining a bit sequence included in the downlink preemption indicator, a radio network temporary identifier of the downlink preemption indicator, a monitoring occasion for the downlink preemption indicator, or some combination thereof based on a priority of the downlink preemption indicator, which may be indicated to the UE based on the determination. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: the indication of the rule is transmitted to the UE in radio resource control signaling, a downlink control message, or both.

In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the indication comprises a priority indication for at least a portion of a set of scheduled time and frequency resources for downlink communications. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: the downlink preemption indicator monitoring configuration is transmitted to the UE in a system information block. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: identifying a radio network temporary identifier; and encoding a downlink preemption indicator based on the identified radio network temporary identifier.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: a set of time and frequency resources including a set of time and frequency resources for downlink communications is identified from a set of time and frequency resources scheduled by a downlink control message, wherein a downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources. Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: a set of time and frequency resources including one or more multimedia broadcast multicast service symbols is identified from a set of time and frequency resources scheduled by a downlink control message, wherein a downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources.

Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for: a set of time and frequency resources including one or more uplink symbols is identified from a set of time and frequency resources scheduled by a downlink control message, wherein a downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources.

Brief Description of Drawings

Fig. 1 illustrates an example of a system of wireless communication supporting communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 2 illustrates an example of a wireless communication system that supports communication preemption applicability techniques in accordance with various aspects of the present disclosure.

Fig. 3 illustrates an example of a diagram of a technique to support communication preemption applicability in accordance with aspects of the present disclosure.

Fig. 4 illustrates an example of a wireless communication system that supports communication preemption applicability techniques in accordance with various aspects of the present disclosure.

Fig. 5 illustrates an example of a wireless communication system that supports communication preemption applicability techniques in accordance with various aspects of the present disclosure.

Fig. 6 illustrates an example of a process flow to support communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 7 illustrates an example of a process flow to support communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 8 illustrates an example of a process flow to support communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 9 and 10 illustrate block diagrams of devices that support communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 11 illustrates a block diagram of a communication manager that supports communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 12 shows a diagram of a system including devices that support communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 13 and 14 show block diagrams of devices that support communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 15 illustrates a block diagram of a communication manager that supports communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 16 shows a diagram of a system including devices that support communication preemption applicability techniques in accordance with aspects of the present disclosure.

Fig. 17-23 show flow diagrams illustrating methods of supporting communication preemption applicability techniques in accordance with aspects of the present disclosure.

Detailed Description

Some wireless communication systems, such as NR systems, may support heterogeneous conditions for one or more service deployments. For example, a communication device (such as a base station or UE) may support the flexibility to allocate multiple supported services or traffic types on a channel resource. As part of the channel resource allocation, the base station and the UE may support prioritizing some communications over other communications, which may include prioritization of traffic or services with different reliability thresholds, different latency thresholds, or both. In some cases, efficient system utilization may be based on how resources are shared or allocated between UEs of different traffic types or configured according to different traffic types.

Some communication systems may support different traffic types, which may include or refer to communication traffic having different reliability thresholds, different latency thresholds, different services, or various combinations thereof. For example, a wireless communication system may support a first traffic type, such as an ultra-reliable low latency communication (URLLC) traffic type, associated with a relatively high reliability target or threshold and a relatively low latency target or threshold. The wireless communication system may also support a second traffic type associated with a relatively low reliability target or threshold and a relatively long or relaxed latency threshold, such as an enhanced mobile broadband (eMBB) traffic type. In some cases, to support various system operations (e.g., efficient utilization of wireless communication resources, appropriate allocation or balancing of wireless communication resources, appropriate support for traffic according to different prioritization or latency thresholds), a wireless communication system may support dynamic resource sharing between traffic types, such as dynamic allocation of resources between URLLC communications and eMBB communications or other communications according to different traffic types, classes, or other prioritization.

The described techniques include various examples of dynamic resource allocation by way of cancellation or preemption of previously allocated uplink resources by a network entity, such as a base station or other controller or resource allocation mechanism in communication with the base station. For example, a base station or other network entity may allocate uplink resources (e.g., an initial uplink resource allocation) to each UE or group of UEs, and the base station may then issue a cancellation or preemption indicator (e.g., an uplink preemption indicator (ULPI) or a downlink preemption indicator (DLPI)) that may correspond to at least a portion of the previously allocated uplink or downlink resources (as allocated to a particular UE). The UE may detect such a cancellation indication and determine whether to continue with uplink transmissions (e.g., Physical Uplink Shared Channel (PUSCH) transmissions) or downlink receptions (e.g., reception of Physical Downlink Shared Channel (PDSCH)) using their previously allocated uplink resources (e.g., based on whether the cancellation indication is for the UE, ULPI-based application rules, DLPI-based application rules, etc.).

In some examples, the cancellation indication may be used to prevent the UE from using at least a portion of previously allocated uplink resources for uplink transmissions, which may support dynamic allocation of uplink resources from communications associated with one latency threshold to communications associated with another latency threshold, or some other reallocation based on prioritization of communications. For example, resources originally allocated to eMBB communications may be reallocated to URLLC communications (to communications that are more performance sensitive). In some examples, a particular UE may ignore the cancellation indication, such as when the cancellation indication is intended to suspend uplink transmissions from other UEs in order to reallocate uplink resources to the particular UE or the type of traffic to be transmitted by the particular UE. In general, a UE may receive ULPI and/or DLPI and identify an application rule for ULPI and/or DLPI (e.g., based on a traffic type or traffic priority associated with the UE during resources preempted by the cancel indication, based on a scheduled reference signal to be transmitted by the UE, etc.).

Thus, in accordance with these and other examples, various types of uplink resource allocations may be cancelled, preempted, or reallocated, thereby supporting dynamic redistribution of uplink resources in a wireless communication system that more effectively balances performance and resource utilization of communications according to different priorities. Further, the described techniques may provide for efficient compliance with the cancellation indication. For example, the described application rules of ULPI/DLPI (e.g., prioritization based on traffic prioritization and cancellation indications, prioritization based on types of reference signals to be transmitted by the UE, etc.) may provide efficient communication preemption such that uplink communications and/or downlink communications are not unnecessarily or inefficiently preempted by the UE.

Aspects of the present disclosure are initially described in the context of a wireless communication system. Aspects of the present disclosure are further illustrated and described by way of and with reference to examples of signaling, operations, and diagrams that may support the described techniques for uplink preemption applicability techniques. Aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow charts related to communication preemption applicability techniques.

Fig. 1 illustrates an example of a wireless communication system 100 that supports uplink preemption applicability techniques in accordance with aspects of the present disclosure. The wireless communication system 100 includes base stations 105, UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an LTE-advanced (LTE-a) network, an LTE-a Pro network, or a New Radio (NR) network. In some cases, wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission critical) communications, low latency communications, or communications with low cost and low complexity devices.

The base station 105 may communicate wirelessly with the UE 115 via one or more base station antennas. The base stations 105 described herein may include or may be referred to by those skilled in the art as base transceiver stations, radio base stations, access points, radio transceivers, node bs, evolved node bs (enbs), next generation node bs or gigabit node bs (any of which may be referred to as gnbs), home node bs, home evolved node bs, or some other suitable terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro cell base stations or small cell base stations). The UEs 115 described herein may be capable of communicating with various types of base stations 105 and network equipment, including macro enbs, small cell enbs, gbbs, relay base stations, and so forth.

Each base station 105 may be associated with a particular geographic coverage area 110, supporting communication with various UEs 115 in that particular geographic coverage area 110. Each base station 105 may provide communication coverage for a respective geographic coverage area 110 via a communication link 125, and the communication link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communication links 125 shown in the wireless communication system 100 may include uplink transmissions from the UEs 115 to the base stations 105 or downlink transmissions from the base stations 105 to the UEs 115. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

The geographic coverage area 110 of a base station 105 can be divided into sectors that form a portion of the geographic coverage area 110, and each sector can be associated with a cell. For example, each base station 105 may provide communication coverage for a macro cell, a small cell, a hot spot, or other type of cell, or various combinations thereof. In some examples, the base stations 105 may be mobile and thus provide communication coverage for a moving geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, and the overlapping geographic coverage areas 110 associated with different technologies may be supported by the same base station 105 or different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous LTE/LTE-A/LTE-A Pro or NR network in which different types of base stations 105 provide coverage for various geographic coverage areas 110.

The term "cell" refers to a logical communication entity for communicating with a base station 105 (e.g., on a carrier) and may be associated with an identifier to distinguish between neighboring cells (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID)) operating via the same or different carriers. In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., Machine Type Communication (MTC), narrowband internet of things (NB-IoT), enhanced mobile broadband (eMBB), or others) that may provide access for different types of devices. In some cases, the term "cell" may refer to a portion (e.g., a sector) of geographic coverage area 110 over which a logical entity operates.

The UEs 115 may be dispersed throughout the wireless communication system 100, and each UE 115 may be stationary or mobile. A UE 115 may also be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where a "device" may also be referred to as a unit, station, terminal, or client. The UE 115 may also be a personal electronic device, such as a cellular telephone, a Personal Digital Assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, the UE 115 may also refer to a Wireless Local Loop (WLL) station, an internet of things (IoT) device, an internet of everything (IoE) device, or an MTC device, among others, which may be implemented in various items such as appliances, vehicles, meters, and so forth.

Some UEs 115, such as MTC or IoT devices, may be low cost or low complexity devices and may provide automated communication between machines (e.g., communication via machine-to-machine (M2M)). M2M communication or MTC may refer to data communication techniques that allow devices to communicate with each other or with the base station 105 without human intervention. In some examples, M2M communications or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay the information to a central server or application that may utilize the information or present the information to a person interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of a machine. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based business charging.

Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communications (e.g., a mode that supports unidirectional communication via transmission or reception but does not simultaneously transmit and receive). In some examples, half-duplex communication may be performed with a reduced peak rate. Other power saving techniques for the UE 115 include entering a power saving "deep sleep" mode when not engaged in active communication, or operating on a limited bandwidth (e.g., according to narrowband communication). In some cases, the UE 115 may be designed to support critical functions (e.g., mission critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communication for these functions.

In some cases, the UE 115 may also be able to communicate directly with other UEs 115 (e.g., using peer-to-peer (P2P) or device-to-device (D2D) protocols). One or more UEs of the group of UEs 115 communicating with D2D may be within the geographic coverage area 110 of the base station 105. The other UEs 115 in the group may be outside the geographic coverage area 110 of the base station 105 or otherwise unable to receive transmissions from the base station 105. In some cases, groups of UEs 115 communicating via D2D may utilize a one-to-many (1: M) system, where each UE 115 transmits to every other UE 115 in the group. In some cases, the base station 105 facilitates scheduling of resources for D2D communication. In other cases, D2D communication is performed between UEs 115 without involving base stations 105.

The base stations 105 may communicate with the core network 130 and with each other. For example, the base stations 105 may interface with the core network 130 over backhaul links 132 (e.g., via S1, N2, N3, or other interfaces). The base stations 105 may communicate with each other over backhaul links 134 (e.g., via X2, Xn, or other interfaces) directly (e.g., directly between base stations 105) or indirectly (e.g., via the core network 130).

The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an Evolved Packet Core (EPC) that may include at least one Mobility Management Entity (MME), at least one serving gateway (S-GW), and at least one Packet Data Network (PDN) gateway (P-GW). The MME may manage non-access stratum (e.g., control plane) functions such as mobility, authentication, and bearer management for UEs 115 served by base stations 105 associated with the EPC. User IP packets may be communicated through the S-GW, which may itself be connected to the P-GW. The P-GW may provide IP address allocation as well as other functions. The P-GW may be connected to network operator IP services. The operator IP services may include access to the internet, intranets, IP Multimedia Subsystem (IMS), or Packet Switched (PS) streaming services.

At least some network devices, such as base stations 105, may include subcomponents, such as access network entities, which may be examples of Access Node Controllers (ANCs). Each access network entity may communicate with UEs 115 through a number of other access network transport entities, which may be referred to as radio heads, intelligent radio heads, or transmission/reception points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or consolidated into a single network device (e.g., base station 105).

Wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the 300MHz to 3GHz region is referred to as an Ultra High Frequency (UHF) region or a decimeter band because the wavelengths range from about 1 decimeter to 1 meter long. UHF waves can be blocked or redirected by building and environmental features. However, these waves may penetrate a variety of structures sufficiently for a macro cell to provide service to a UE 115 located indoors. UHF-wave transmission can be associated with smaller antennas and shorter ranges (e.g., less than 100km) than transmission using smaller and longer waves of the High Frequency (HF) or Very High Frequency (VHF) portions of the spectrum below 300 MHz.

The wireless communication system 100 may also operate in the ultra-high frequency (SHF) region using a frequency band from 3GHz to 30GHz, also referred to as a centimeter frequency band. The SHF region includes frequency bands (such as the 5GHz industrial, scientific, and medical (ISM) frequency bands) that may be opportunistically used by devices that may be able to tolerate interference from other users.

The wireless communication system 100 may also operate in the Extremely High Frequency (EHF) region of the spectrum (e.g., from 30GHz to 300GHz), which is also referred to as the millimeter-band. In some examples, the wireless communication system 100 may support millimeter wave (mmW) communication between the UE 115 and the base station 105, and EHF antennas of respective devices may be even smaller and more closely spaced than UHF antennas. In some cases, this may facilitate the use of antenna arrays within the UE 115. However, propagation of EHF transmissions may experience even greater atmospheric attenuation and shorter ranges than SHF or UHF transmissions. The techniques disclosed herein may be employed across transmissions using one or more different frequency regions, and the frequency band usage designated across these frequency regions may differ by country or regulatory agency.

In some cases, the wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ Licensed Assisted Access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band, such as the 5GHz ISM band. When operating in the unlicensed radio frequency spectrum band, wireless devices, such as base stations 105 and UEs 115, may employ a Listen Before Talk (LBT) procedure to ensure that frequency channels are clear before transmitting data. In some cases, operation in the unlicensed band may be based on a carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in the licensed band. Operations in the unlicensed spectrum may include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in the unlicensed spectrum may be based on Frequency Division Duplexing (FDD), Time Division Duplexing (TDD), or a combination of both.

In some examples, a base station 105 or UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. For example, the wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., base station 105) equipped with multiple antennas and a receiving device (e.g., UE 115) equipped with one or more antennas. MIMO communication may employ multipath signal propagation to increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing. For example, a transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Also, the receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiver device; and multi-user MIMO (MU-MIMO), in which a plurality of spatial layers are transmitted to a plurality of devices.

Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting or receiving device (e.g., base station 105 or UE 115) to shape or steer an antenna beam (e.g., a transmit beam or a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array such that signals propagating in a particular orientation relative to the antenna array undergo constructive interference while other signals undergo destructive interference. The adjustment to the signals communicated via the antenna elements may include the transmitting or receiving device applying a particular amplitude and phase shift to the signals carried via each antenna element associated with the device. The adjustment associated with each antenna element may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to an antenna array of a transmitting device or a receiving device, or relative to some other orientation).

In one example, the base station 105 may use multiple antennas or antenna arrays for beamforming operations for directional communication with the UEs 115. For example, some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times in different directions by the base station 105, which may include a signal being transmitted according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by the base station 105 or a receiving device, such as UE 115) to identify beam directions used by the base station 105 for subsequent transmission and/or reception.

Some signals, such as data signals associated with a particular recipient device, may be transmitted by the base station 105 in a single beam direction (e.g., a direction associated with the recipient device, such as the UE 115). In some examples, a beam direction associated with transmission along a single beam direction may be determined based at least in part on signals transmitted in different beam directions. For example, the UE 115 may receive one or more signals transmitted by the base station 105 in different directions, and the UE 115 may report an indication to the base station 105 of the signal for which it is received at the highest signal quality or other acceptable signal quality. Although the techniques are described with reference to signals transmitted by the base station 105 in one or more directions, the UE 115 may use similar techniques for transmitting signals multiple times in different directions (e.g., to identify beam directions used by the UE 115 for subsequent transmission or reception) or for transmitting signals in a single direction (e.g., for transmitting data to a receiving device).

A receiving device (e.g., UE 115, which may be an example of a mmW receiving device) may attempt multiple receive beams when receiving various signals from base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a recipient device may attempt multiple receive directions by: receiving via different antenna sub-arrays, processing received signals according to different antenna sub-arrays, receiving according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of an antenna array, either of which may be referred to as "listening" according to different receive beams or receive directions. In some examples, the receiving device may use a single receive beam to receive along a single beam direction (e.g., when receiving a data signal). The single receive beam may be aligned in a beam direction determined based at least in part on listening from different receive beam directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio, or other acceptable signal quality based at least in part on listening from multiple beam directions).

In some cases, the antennas of a base station 105 or UE 115 may be located within one or more antenna arrays that may support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some cases, the antennas or antenna arrays associated with the base station 105 may be located at different geographic locations. The base station 105 may have an antenna array with a number of rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with the UEs 115. Likewise, the UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

In some cases, the wireless communication system 100 may be a packet-based network operating according to a layered protocol stack. In the user plane, communication of the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate on logical channels. The Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also use hybrid automatic repeat request (HARQ) to provide retransmission by the MAC layer, thereby improving link efficiency. In the control plane, a Radio Resource Control (RRC) protocol layer may provide for establishment, configuration, and maintenance of RRC connections of radio bearers supporting user plane data between the UE 115 and the base station 105 or core network 130. At the physical layer, transport channels may be mapped to physical channels.

In some cases, the UE 115 and the base station 105 may support retransmission of data to increase the likelihood that the data is successfully received. HARQ feedback is a technique that increases the likelihood that data will be correctly received on the communication link 125. HARQ may include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), Forward Error Correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve throughput of the MAC layer in poor radio conditions (e.g., signal-to-noise conditions). In some cases, a wireless device may support simultaneous slot HARQ feedback, where the device may provide HARQ feedback in a particular slot for data received in a previous symbol in that slot. In other cases, the device may provide HARQ feedback in subsequent time slots or according to some other time interval.

The time interval in LTE or NR may be in a basic unit of time (which may for example refer to the sampling period T)_s1/30,720,000 seconds). The time intervals of the communication resources may be organized according to radio frames each having a duration of 10 milliseconds (ms), where the frame period may be expressed as T_f＝307,200T_s. The radio frame may be identified by a System Frame Number (SFN) ranging from 0 to 1023. Each frame may include 10 subframes numbered from 0 to 9, and each subframe may have a duration of 1 ms. A subframe may be further divided into 2 slots, each having a duration of 0.5ms, and each slot may contain 6 or 7 modulation symbol periods (e.g., depending on the length of the cyclic prefix added before each symbol period). Each symbol period may contain 2048 sample periods, excluding the cyclic prefix. In some cases, a subframe may be the smallest scheduling unit of the wireless communication system 100 and may be referred to as a Transmission Time Interval (TTI). In other cases, the minimum scheduling unit of the wireless communication system 100 may be shorter than a subframe or may be dynamically selected (e.g., in a burst of shortened tti (sTTI) or in a selected component carrier using sTTI).

In some wireless communication systems, a slot may be further divided into a plurality of mini-slots containing one or more symbols. In some examples, a symbol of a mini-slot or a mini-slot may be a minimum scheduling unit. For example, each symbol may vary in duration depending on the subcarrier spacing or operating frequency band. Further, some wireless communication systems may implement timeslot aggregation, where multiple timeslots or mini-timeslots are aggregated together and used for communication between the UE 115 and the base station 105.

The term "carrier" refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communications over the communication link 125. For example, the carrier of the communication link 125 may comprise a portion of a radio frequency spectrum band operating according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. The carriers may be associated with predefined frequency channels (e.g., evolved universal mobile telecommunications system terrestrial radio access (E-UTRA) absolute radio frequency channel numbers (EARFCNs)) and may be located according to a channel grid for discovery by UEs 115. The carriers may be downlink or uplink (e.g., in FDD mode), or configured to carry downlink and uplink communications (e.g., in TDD mode). In some examples, a signal waveform transmitted on a carrier may include multiple subcarriers (e.g., using multicarrier modulation (MCM) techniques such as Orthogonal Frequency Division Multiplexing (OFDM) or discrete fourier transform spread OFDM (DFT-S-OFDM)).

The organization of the carriers may be different for different radio access technologies (e.g., LTE-A, LTE-A Pro, NR). For example, communications on a carrier may be organized according to TTIs or slots, each of which may include user data as well as control information or signaling supporting decoding of the user data. The carrier may also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling that coordinates operation of the carrier. In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers.

The physical channels may be multiplexed on the carriers according to various techniques. The physical control channels and physical data channels may be multiplexed on the downlink carrier using, for example, Time Division Multiplexing (TDM) techniques, Frequency Division Multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. In some examples, control information transmitted in the physical control channel may be distributed in a cascaded manner between different control regions (e.g., between a common control region or common search space and one or more UE-specific control regions or UE-specific search spaces).

A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as a carrier or "system bandwidth" of the wireless communication system 100. For example, the carrier bandwidth may be one of several predetermined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80MHz) of a carrier of a particular radio access technology. In some examples, each served UE 115 may be configured to operate over part or all of the carrier bandwidth. In other examples, some UEs 115 may be configured for operation using a narrowband protocol type associated with a predefined portion or range within a carrier (e.g., a set of subcarriers or RBs) (e.g., "in-band" deployment of narrowband protocol types).

In a system employing MCM technology, a resource element may include one symbol period (e.g., the duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme). Thus, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate of the UE 115 may be. In a MIMO system, wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers), and using multiple spatial layers may further improve the data rate of communication with the UE 115.

Devices of the wireless communication system 100 (e.g., base stations 105 or UEs 115) may have a hardware configuration that supports communication over a particular carrier bandwidth or may be configurable to support communication over one carrier bandwidth of a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 and/or a UE 115 that supports simultaneous communication via carriers associated with more than one different carrier bandwidth.

The wireless communication system 100 may support communication with UEs 115 over multiple cells or carriers, a feature that may be referred to as carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both FDD and TDD component carriers.

In some cases, the wireless communication system 100 may utilize an enhanced component carrier (eCC). An eCC may be characterized by one or more characteristics including a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC may also be configured for use in unlicensed spectrum or shared spectrum (e.g., where more than one operator is allowed to use the spectrum). An eCC characterized by a wide carrier bandwidth may include one or more segments that may be utilized by UEs 115 that are unable to monitor the entire carrier bandwidth or are otherwise configured to use a limited carrier bandwidth (e.g., to conserve power).

In some cases, an eCC may utilize a different symbol duration than other component carriers, which may include using a reduced symbol duration compared to the symbol duration of the other component carriers. Shorter symbol durations may be associated with increased spacing between adjacent subcarriers. Devices utilizing an eCC, such as UE 115 or base station 105, may transmit a wideband signal (e.g., according to a frequency channel or carrier bandwidth of 20, 40, 60, 80MHz, etc.) with a reduced symbol duration (e.g., 16.67 microseconds). A TTI in an eCC may include one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

The wireless communication system 100 may be an NR system that may utilize any combination of licensed, shared, and unlicensed spectrum bands, etc. Flexibility in eCC symbol duration and subcarrier spacing may allow eCC to be used across multiple spectra. In some examples, NR sharing spectrum may improve spectrum utilization and spectral efficiency, particularly through dynamic vertical (e.g., across frequency domains) and horizontal (e.g., across time domains) sharing of resources.

Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). A wireless network (e.g., a Wireless Local Area Network (WLAN), such as a Wi-Fi (i.e., Institute of Electrical and Electronics Engineers (IEEE)802.11) network) may include an Access Point (AP) that may communicate with one or more wireless or mobile devices. The AP may be coupled to a network, such as the internet, and may enable the mobile device to communicate via the network (or with other devices coupled to the access point). The wireless device may communicate bi-directionally with the network device. For example, in a WLAN, a device may communicate with an associated AP via a downlink (e.g., a communication link from the AP to the device) and an uplink (e.g., a communication link from the device to the AP). A wireless Personal Area Network (PAN), which may include a bluetooth connection, may provide a short-range wireless connection between two or more paired wireless devices. For example, a wireless device (such as a cellular telephone) may utilize wireless PAN communications to exchange information, such as audio signals, with a wireless headset.

The wireless communication system 100 may be configured to support different traffic types (e.g., traffic classes, traffic priorities, service priorities), which may include or refer to communication traffic having different reliability thresholds, different latency thresholds, different services, or various combinations thereof. For example, the wireless communication system 100 may support a first traffic type, such as a URLLC traffic type, associated with a relatively high reliability target or threshold and a relatively low latency target or threshold. The wireless communication system 100 may also support a second traffic type, such as an eMBB traffic type, associated with a relatively low reliability target or threshold and a relatively long or relaxed latency threshold. In some cases, to support various system operations (e.g., efficient utilization of wireless communication resources, appropriate allocation or balancing of wireless communication resources, appropriate support for traffic according to different prioritization or latency thresholds), the wireless communication system 100 may support dynamic resource sharing between traffic types, such as dynamic allocation of resources between URLLC communications and eMBB communications or other communications according to different traffic types, classes, or other prioritization.

To support various uplink resource allocation techniques, a base station 105 or other network entity (e.g., an entity of the core network 130, an entity of the distributed base station 105, etc.) may allocate uplink resources and/or downlink resources (e.g., an initial uplink resource allocation or an initial downlink resource allocation) to each UE 115 or group of UEs 115 for uplink and/or downlink transmissions. In some examples, the base station 105 or other network entity may then determine to perform a reallocation of previously allocated resources, which may be triggered, for example, by a determined or detected need, or request to support higher priority communications. Thus, a base station 105 or other network entity may generate and transmit a cancellation indication (e.g., ULPI and/or DLPI) that may correspond to at least a portion of previously allocated resources (e.g., as allocated to a particular UE 115). UE 115 may be configured to monitor ULPI and DLPI and may accordingly determine whether to continue uplink transmission and/or downlink reception using their previously allocated uplink resources based at least in part on the received, detected, or decoded ULPI or DLPI.

According to some examples, a particular UE 115 may ignore a cancellation indication, such as when the cancellation indication is intended to suspend uplink transmissions from other UEs 115 in order to reallocate uplink resources to the particular UE 115 or a type of traffic to be transmitted by the particular UE 115. In some cases, the applicability of the cancellation indication (e.g., with respect to applying or following rules for the cancellation indication) may be based on the type of traffic that the UE 115 communicates, the content of the UE 115 uplink transmission, and so on. For example, in some cases, there may be rules that apply a cancellation indication (which may be referred to as cancellation rules, preemption applicability rules, etc.) (e.g., application rules for ULPI, application rules for DLPI, etc.). Thus, in accordance with these and other examples, various types of uplink resource allocations may be cancelled, preempted, or reallocated, thereby supporting dynamic redistribution of uplink resources in a wireless communication system that more effectively balances performance and resource utilization of communications according to different priorities.

Fig. 2 illustrates an example of a wireless communication system 200 that supports communication preemption applicability techniques in accordance with various aspects of the present disclosure. In some examples, the wireless communication system 200 may implement aspects of the wireless communication system 100. The wireless communication system 200 may include a base station 105-a, a UE 115-a, and a UE 115-b, which may be examples of corresponding devices described with reference to FIG. 1. In the example of fig. 2, base station 105-a may support communication with UE 115-a and UE 115-b within supported geographic coverage area 110-a via communication links 205-a and 205-b, respectively. In some examples, the wireless communication system 200 may support mission critical applications including strict communication performance (e.g., reliability thresholds, latency thresholds, etc.) as well as other types of communications.

In the wireless communication system 200, the UE 115-a and the UE 115-b may support different service deployments, such as URLLC service and eMBB service. For example, UE 115-a may support URLLC transmissions to reduce end-to-end latency for data transmissions and receptions associated with base station 105-a. In some examples, UE 115-a may correspond to a URLLC UE that supports or is otherwise configured for transmission of relatively small data packets (such as periodic transmissions). For example, the UEs 115-a may include URLLC UEs that support operations and data communications associated with factory automation (e.g., automated manufacturing, supply chain management, etc.), transportation (e.g., vehicle-to-vehicle (V2V) communications, vehicle-to-infrastructure (V2I) communications, etc.), or electrical power distribution within a supported area or site (e.g., grid networking), among other possible implementations.

Additionally or alternatively, the UE 115-b may support eMBB transmissions associated with high data rates across a wide coverage area supported by the base station 105-a (such as the geographic coverage area 110-a). In some examples, the eMBB communication may be associated with a relatively loose latency target or threshold, a lower reliability target or threshold, or both, as compared to URLLC communication. Also, as part of intra-UE or inter-UE operations, one or more of UE 115-a and UE 115-b may support data communications associated with multiple service deployments (such as URLLC and eMBB).

As such, in accordance with the described techniques, a base station 105-a or other network entity may allocate uplink resources (e.g., in the time, frequency, and/or spatial domains) and/or downlink resources to a UE115 or group of UEs, which may then be reallocated. For example, the base station 105-a may determine a reallocation of uplink resources and/or downlink resources and may issue a cancellation indication or a preemption indicator that may correspond to at least a portion of previously allocated resources. The UEs 115 (e.g., UE115-a and UE 115-b) may be configured to monitor for a cancellation or preemption indicator and based on the received cancellation or preemption indicator, the UEs 115 may determine whether to continue uplink transmission or downlink reception using their previously allocated resources. In some cases, the application rule of the cancellation or preemption indicator may be identified by the UE115 and/or the base station 105 based on traffic prioritization and cancellation indication prioritization, based on the type of scheduled reference signal to be transmitted by the UE115, and so on.

That is, to support conditions associated with URLLC and eMBB service deployment, or other types of resource allocation based on communication prioritization, the base station 105-a and the UEs 115-a and 115-b may support various techniques for dynamic uplink resource allocation and communication preemption applicability techniques described herein. For example, base station 105-a may be configured to transmit a ULPI based at least in part on determining a reallocation of uplink resources (e.g., associated with uplink resources allocated to one or both of UE115-a or UE 115-b), and UE115-a and UE 115-b may monitor such ULPI to determine how they should continue with uplink communications. In other words, the UE115 may be notified of the cancelled or preempted uplink resources in the time, frequency, and/or space domain. In various examples, each of UE115-a or UE 115-b may perform an uplink communication determination, such as determining whether to perform or continue uplink transmission using at least a portion of its previously allocated uplink resources, or determining to refrain from using at least a portion of its previously allocated uplink resources, or determining to wait for another allocation of uplink resources before initiating or resuming uplink communication, or other determinations.

The ULPI may be signaled by base station 105-a to UE 115 (one or both of UE 115-a or UE 115-b, or a group of UEs) according to various techniques. For example, UE 115 may be configured to monitor the ULPI according to various signaling by base station 105-a, such as various types of downlink control signaling, physical channel signaling, cell-specific signaling, and so on. In some examples, the ULPI may be conveyed in Downlink Control Information (DCI) on a Physical Downlink Control Channel (PDCCH), which may support UE-specific ULPI. In some examples, UE 115 may be configured (by base station 105-a) with a Radio Network Temporary Identifier (RNTI) for monitoring a PDCCH that may carry a ULPI. In various examples, the UE 115 may be configured to have an RNTI that is common between the uplink cancellation or preemption indicator and the downlink cancellation or preemption indicator, or different between the uplink cancellation or preemption indicator and the downlink cancellation or preemption indicator.

In some examples, the UE 115 may transmit over multiple beams (the UE 115 may transmit uplink messages in one or more spatial directions). In some cases, only a subset of the spatial directions may cause interference to another UE. For example, a scenario may arise in which a UE 115-a (e.g., a URLLC UE) transmits on a beam that is in the same direction (or at least partially aligned) as one of the UE 115-b (e.g., an eMBB UE) beams. For example, UE 115-b may be scheduled to transmit uplink messages in multiple spatial directions using multiple time and frequency resources. In some examples, UE 115-b (and in some cases also UE 115-a) may be capable of transmitting simultaneous (parallel or at least partially overlapping in time) uplink channels per serving cell. The base station 105-a may determine that the UE 115-a will employ URLLC (or other high priority communication) using resources that may interfere with some subset of the spatial directions associated with the scheduled UE 115-b transmissions (e.g., the base station 105-a may determine that the subset of spatial directions to be transmitted by the UE 115-b may interfere with the UE 115-auurllc during at least a portion of the multiple time and frequency resources scheduled for the UE 115-b). In such cases, the ULPI may indicate one or more spatial directions in which transmissions by the UE are preempted during a portion of the plurality of time and frequency resources (e.g., based on a subset of potential interfering spatial directions determined by the base station). In some cases, UE 115-b may thus still transmit uplink messages in a spatial direction different from the one or more spatial directions identified by the ULPI (which may result in more efficient resource utilization since only potentially interfering spatial directions may be preempted). That is, instead of requesting the UE 115-b (e.g., an eMBB user) to terminate its transmission, the ULPI may indicate that the transmission on the beam subset should be terminated.

In some examples, a Positioning Reference Signal (PRS) may be similar to a Sounding Reference Signal (SRS), which may be transmitted in a wideband and may span multiple symbols (e.g., 6 symbols of a slot). In a different scenario, if the UE receives the ULPI, it may or may not be efficient to terminate the PRS. That is, in general, some Reference Signals (RSs), such as PRSs, may be configured to be received by multiple base stations 105 throughout the network (so that a tradeoff between cancellation indication for high priority traffic and network positioning needs may be considered).

In some cases, PUCCH, SRS, PRS, other RSs, etc. may be used by multiple base stations or TRPs (such that preempting such communications may be expensive from a network perspective). However, such communications may affect URLLC in some scenarios, as such communications may span a relatively large number of Resource Blocks (RBs) and span multiple symbols. In such cases, a wireless communication system (e.g., wireless communication system 200) may employ preemption applicability rules (e.g., application rules for ULPI) to balance such tradeoffs. For example, in some cases, a rule may be defined such that if UE 115 receives a ULPI and the indication refers to resources for transmission of a particular RS (e.g., PRS transmission), the particular RS (e.g., PRS) is preempted. Alternatively, a rule may be defined such that if UE 115 receives ULPI and the indication refers to resources for transmission of a particular RS (e.g., PRS transmission), ULPI does not apply to that particular RS (e.g., PRS). In some cases, different rules for different RSs may be configured by the network based on the priority of a particular RS and the priority of the type of traffic that prompts for resource reallocation (e.g., the network may define such rules based on trade-off decisions and configurations established by the network).

In some cases, the rules regarding whether the ULPI received by the UE applies to the recipient UE may be configurable. For example, in some cases, base station 105 may configure rules for applying ULPI in Radio Resource Control (RRC) signaling, in ULPI itself, etc. (e.g., ULPI may be associated with a priority, which UE 115 may use to determine whether ULPI applies based on the priority of communications to be preempted by the UE). In some examples, if PRS is defined as a use for SRS, ULPI may be applied to SRS resources that are used as positioning or, alternatively, not applied to SRS resources that are used as positioning. That is, when SRS is configured for Positioning applications (e.g., usage of estimated { beam management, codebook, non-codebook, antenna switching, Positioning), ULPI may or may not be applicable based on rules employed by wireless communication system 200. In some cases, ULPI may or may not similarly apply to RSs for other uses or applications based on rules employed by wireless communication system 200.

Further, the rule as to whether or not the DLPI received by the UE is applied to the recipient UE may also be configurable. For example, rules may be configured as to whether DLPI should be applied to Multimedia Broadcast Multicast Service (MBMS), single cell point-to-multipoint (SC-PTM), etc. For example, DLPI may be applied according to the priority of different services (a rule may indicate whether DLPI is to be applied or not). For example, a priority list may be defined (e.g., at the PHY layer). When UE 115 receives the DLPI, UE 115 may check the priority of the DLPI and compare it to the priority of the communication indicated as being preempted by the DLPI (according to the channel priority list) and decide whether the DLPI is to be applied.

In some examples, the ULPI may be configured or communicated in a group common physical downlink control channel (GC-PDCCH) or otherwise communicated in a group common DCI (GC-DCI) or DCI format 2_1 (which may support signaling the ULPI related to a set of one or more UEs 115 and may reduce signaling overhead compared to the ULPI communicated in UE-specific signaling). In some examples, the ULPI or GC-PDCCH or GC-DCI indicates that a UE 115 (e.g., configured for an eMBB UE) may be configured for a particular communication, such as an eMBB communication.

In some examples, uplink cancellation may include various configurations by way of RRC configuration or other connection establishment between the base station 105-a and the UE 115. For example, such configuration may be signaled (e.g., by the base station 105-a) to the UE 115 in an Information Element (IE) or other configuration for uplink cancellation (e.g., uplink cancellation or uplink preemption IE, int-RNTI configuration, etc.).

The ULPI may also be configured to be associated with a particular communication resource in the time domain (which may be configured by RRC configuration (e.g., by base station 105-a) or other configuration). For example, the time domain resources to which the cancellation applies (e.g., corresponding to ULPI) may be indicated in a symbol-level interval (e.g., symbol duration, OFDM symbol duration, etc.), such as a set of 7 symbol durations or a set of 14 symbol durations, or may be indicated in a sub-slot, such as 7 sub-slots each having a length of two symbol durations or four symbol durations. Such partitioning or partitioning may be referred to as time domain resource granularity for cancellation, and in some examples, such time domain resource granularity may be common between uplink cancellation or preemption and downlink cancellation or preemption.

Fig. 3 illustrates an example of a diagram 300 of a technique to support communication preemption applicability in accordance with aspects of the present disclosure. In some examples, diagram 300 may illustrate aspects of techniques supported by wireless communication system 100 and/or wireless communication system 200. In general, diagram 300 may illustrate eMBB uplink scheduling and ULPI. For example, diagram 300 may illustrate that a base station 105 schedules a UE 115 for eMBB uplink communications, as well as configuration (e.g., implementation) of ULPI by the base station 105 and handling of such ULPI by the UE 115.

Aspects of the technology discussed herein are described with reference to an illustrated Downlink (DL) cell 305-a (which may be an example of a downlink FDD cell) and an Uplink (UL) cell 305-b (which may be an example of an uplink FDD cell, for example). For example, the base station 105 may transmit PDCCH 310 to schedule eMBB PUSCH 315 (e.g., schedule time and frequency resources for the eMBB uplink for the UE 115). In some cases, the uplink for both the eMBB (e.g., low priority traffic) and the URLLC (e.g., high priority traffic) may be grant-based (e.g., scheduled by DCI). Considering that URLLC may require a faster timeline than eMBB (e.g., faster N2 for UL scheduling), it may happen that some of the resources originally allocated to the eMBB uplink may be reclaimed for URLLC. To reduce interference caused by the eMBB user to URLLC users, the eMBB user may be required to preempt its uplink transmissions (e.g., via ULPI monitored by the eMBB user).

For example, the UE 115 (e.g., an eMBB user) may be configured to monitor the mini-slot scheduling occasion 330, where the base station 105 may transmit a PI 325 (e.g., ULPI, DLPI, etc.) e.g., when the base station determines to reallocate resources, refrain certain UEs from occupying some resources in advance, etc. In the example of fig. 2, the base station 105 may transmit PDCCH 310 to schedule eMBB PUSCH 315. Later, the base station 105 may identify that traffic of another UE has a first priority higher than a second priority of the uplink message (e.g., the base station may identify that another URLLC UE is to communicate traffic of a higher priority than a previously scheduled UE). The base station 105 may then identify time, frequency, and/or spatial resources (e.g., one or more spatial directions and at least a portion of the scheduled time and frequency resources) in which transmissions by the UE are preempted (e.g., based on identifying that traffic of another UE has a first priority higher than a second priority of an uplink message to be transmitted on the initially scheduled resources). In such a case, the base station may transmit a PI 325-a (e.g., ULPI) in the monitoring occasion 330-a that may preempt transmission of the scheduled uplink message (e.g., ULPI may preempt the scheduled uplink message in one or more spatial directions, on a portion of the scheduled plurality of time and frequency resources, etc.).

As such, another UE may transmit URLLC PUSCH 320 on the preempted resources. In some cases, the initially scheduled UE may preempt transmissions (e.g., depending on how ULPI is configured, resources indicated by ULPI, etc.) on a duration 335 associated with URLLC PUSCH 320, a duration 340 associated with the start of URLLC PUSCH 320 until the end of PUSCH transmission, etc.

In general, the UE may receive PDCCH 310 scheduling an uplink transmission, which may be PUSCH 315 (e.g., a low priority PUSCH, such as eMBB). The UE may be further configured to monitor the mini-slot scheduling occasion 330, and may monitor the mini-slot scheduling occasion 330 after being scheduled for PUSCH 315 (e.g., via PDCCH 310). With PI 325, in situations where the base station wants to reclaim resources (e.g., pre-refraining from the UE occupying previously scheduled resources used), the base station may indicate when to preempt communications so that the base station may reallocate the reclaimed resources (e.g., to schedule URLLC). For example, the base station may transmit ULPI (e.g., PI 325-a) during the monitoring occasion 330-a, and the ULPI may preempt resources (e.g., time, frequency, and/or spatial domains) previously scheduled for PUSCH 315 (e.g., such that the preempted resources may be used by another UE for URLLC PUSCH 320).

Fig. 4 illustrates an example of a wireless communication system 400 that supports communication preemption applicability techniques in accordance with various aspects of the present disclosure. In some examples, wireless communication system 400 may implement aspects of wireless communication system 100 and/or wireless communication system 200. The wireless communication system 400 may include a base station 105-b, a UE 115-c, and a UE115-d, which may be examples of corresponding devices described with reference to FIGS. 1 and 2. In the example of fig. 4, a base station 105-b may support communication with multiple UEs (e.g., UE 115-c and UE 115-d) within a supported geographic coverage area 110-b. In some examples, the wireless communication system 400 may support mission critical applications including strict communication performance (e.g., reliability thresholds, latency thresholds), as well as other types of communications.

As discussed herein, some UEs 115 may transmit over multiple beams (e.g., a UE115 may transmit uplink messages in one or more spatial directions). In some cases, only a subset of the spatial directions may cause interference to another UE. For example, a scenario may arise in which UE 115-c (e.g., a URLLC UE) is to communicate URLLC traffic through beam 405-a, which beam 405-a may be in the same direction (or at least partially aligned) as beam 405-b to be used by UE115-d (e.g., an eMBB UE). For example, UE115-d may be scheduled to transmit uplink messages in multiple spatial directions (e.g., via beam 405-b and beam 405-c) using multiple time and frequency resources. The base station 105-b may determine that the UE 115-c is to employ URLLC (or other high priority communication) using time and frequency resources that overlap (or may interfere with) at least a portion of the plurality of time and frequency resources previously scheduled for the UE 115-d. The base station 105-b may further identify that the beam 405-a to be used by the UE 115-c may only interfere with a subset of spatial directions associated with the scheduled UE 115-b transmission (e.g., only interfere with the beam 405-b) (e.g., the base station 105-b may determine that the beam 405-c does not interfere with the beam 405-a during the identified portion of scheduled time and frequency resources for the UE115-d that overlap with the UE 115-c URLLC traffic).

In such cases, the ULPI may indicate one or more spatial directions in which transmissions by the UE are preempted during at least the portion of the scheduled time and frequency resources (e.g., based on a subset of potential interfering spatial directions determined by the base station). In some cases, UE 115-d may thus still transmit uplink messages in a different spatial direction than the one or more spatial directions identified by the ULPI (e.g., UE 115-d may refrain from transmitting uplink messages in the spatial direction represented by beam 405-a and may still transmit uplink messages in the other spatial direction represented by beam 405-b). This may result in more efficient resource utilization, as only potentially interfering spatial directions (e.g., beam 405-b) may be preempted, and resources that would otherwise be unnecessarily preempted may still be utilized. That is, instead of requesting the UE 115-d (e.g., an eMBB user) to completely terminate its scheduled transmission, the ULPI may indicate that the transmission on the beam subset should be terminated.

As such, ULPI and DLPI commands may be designed to allow for an indication of spatial dimension (e.g., beam/spatial direction/TRP) preemption. The ULPI may thus indicate which beams should be preempted for transmission or to which spatial directions of TRPs. In general, spatial directions may refer to beamforming configurations, precoders, transmission panels, etc., and ULPI may indicate which spatial directions are cancelled or preempted based on which spatial directions a base station or UE has URLLC configured for. For example, a UE (e.g., UE 115-d) may have two panels and transmit to two TRPs (which may be separately located and controlled by base station 105-b). If the transmission associated with one panel is aligned with URLLC, base station 105-b may pre-refrain from the UE from occupying the transmission on that one panel (e.g., indicating preemption of beam 405-b or preemption of the panel corresponding to beam 405-b via ULPI). Additionally or alternatively, base station 105-b may send a DLPI to the UE to indicate that the PDSCH is preempted.

In some wireless communication systems, for codebook-based PUSCH transmission, the transmitted precoding matrix index (TMPI), number of layers, and SRS Resource Indicator (SRI) may be used to give uplink transmission parameters (e.g., spatial direction parameters). The SRI may be used to indicate which panel should be used by the UE. In some wireless communication systems for non-codebook based PUSCH transmission, SRI may be used to indicate to the UE which precoders (beams) should be used for transmission. Generally, the information conveyed thereby is available for preemption. For example, the base station 105-b may know from the SRS certain spatial direction parameters or beams used by the UEs 115-c and 115-d (e.g., precoders for which SRS resources, which UEs are choosing what, etc.).

In order to preempt a subset of beams or panels or prevent the UE from using some of the precoders (e.g., associated with SRS resources), ULPI may be used. In some cases, ULPI may refer to a bit sequence in DCI. In accordance with the techniques described herein, the ULPI bit sequence or a portion of the ULPI bit sequence may be used for spatial preemption. For example, a certain subset of bits may be used to indicate preemption of time and frequency resources, while the remaining bits may be used to indicate (e.g., during the indicated time and frequency resources) panels, beams, precoders, etc. to be preempted. In some examples, for this additional subsequence, a relationship between bit sequence to SRI (e.g., a relationship between bits indicating spatial dimension preemption and SRI included in DCI) or a relationship between a subsequence directly to a preempted beam/panel/precoder/SRS resource may be defined (and indicated by RRC).

For example, the ULPI may include a 12-bit sequence in DCI. In the case where a first subset of the bit sequence (e.g., 10 bits) may be used to indicate preemption of time and frequency resources, a second subset of the bit sequence (e.g., the remaining 2 bits) may point to an SRI point. From the SRI, a UE receiving the ULPI may know which beams to use and which beams to preempt for the indicated time and frequency resources (e.g., which panel, precoder, etc. should be preempted based on what panel, precoder, etc. corresponds to the SRI point indicated by the ULPI). In examples where the relationship between subsequences directly to the preempted beam/panel/precoder/SRS resources is defined, the second subset of bit sequences may indicate one or more beam index/panel index/precoder index/SRS resource index. In examples where the second subset for spatial preemption comprises 2 bits, the bit values of "00", "01", "10", and "11" may be used to indicate one of four different indices corresponding to a set of beam indices, precoder indices, etc., where the relationship defining the set of beam indices, precoder indices, etc., may be indicated via RRC signaling. In some examples, the first subset of the bit sequence may include or indicate a bitmap of ULPIs associated with the set of communication resources in the time and frequency domains (and the receiving UE may determine whether at least a portion of the uplink resources allocated to the receiving UE correspond to cancelling one or more of the subset of communication resources applied, as indicated by the bitmap).

Various other implementations are contemplated and will be readily achieved by analogy, using the described techniques, without departing from the scope of the present disclosure. For example, aspects of ULPI formatting and configuration are generally applicable to cancellation indications (e.g., DLPI), which may include bit sequences of different lengths (e.g., to convey finer or coarser granularity preemption information), which may be differently scaled into first and second subsets (e.g., to convey spatial preemption information for smaller or larger sets of beam/panel/precoder/SRS resource indices), and so forth.

Fig. 5 illustrates an example of a wireless communication system 500 that supports communication preemption applicability techniques in accordance with various aspects of the present disclosure. In some examples, wireless communication system 500 may implement aspects of wireless communication system 100 and/or wireless communication system 200. The wireless communication system 500 may include a base station 105-c, a UE 115-e, and a UE 115-f, which may be examples of corresponding devices described with reference to FIGS. 1 and 2. In the example of fig. 5, a base station 105-c may support communication with multiple UEs (e.g., UE 115-e and UE 115-f). In some examples, the wireless communication system 500 may support mission critical applications including strict communication performance (e.g., reliability thresholds, latency thresholds), as well as other types of communications.

In general, the wireless communication system 500 may illustrate a DLPI in accordance with aspects of the techniques discussed herein. For example, the wireless communication system 500 may illustrate that the base station 105 schedules UEs 115 for downlink and/or uplink communications, as well as the configuration (e.g., implementation) of DLPIs by the base station 105 and the handling of such DLPIs by the UEs 115. As discussed herein, the applicability of the cancellation indication may be based on various factors. There may be established (e.g., network-specified) or configurable (e.g., base station RRC configurable or cancellation indication specific) rules (which may be referred to as cancellation rules, preemption applicability rules, etc.) with respect to applying cancellation indications. For example, the applicability of ULPI may be based on factors such as the content or RS type of UE uplink transmission, the priority of scheduled traffic compared to the priority of ULPI, and so on. For example, in a scenario in which a URLLC UE is included in a group of UEs and a base station transmits ULPI to the group of UEs in an effort to preempt transmissions of other UEs within the group, the URLLC UE may determine not to apply ULPI (e.g., based on identifying that a priority associated with ULPI does not exceed a priority of its URLLC traffic), while other UEs in the group of UEs (e.g., eMBB UEs) may apply ULPI (e.g., because the other UEs may identify that a priority associated with ULPI exceeds a priority of their eMBB traffic).

Further, the applicability of DLPI (e.g., DLPI 510) may also be based on various factors. As discussed herein, base station 105-c may transmit DLPI 510 to one or more UEs (e.g., UE 115-e and UE 115-f) via downlink communication 505. Since the granularity of DLPI 510 may be coarse, it is not always possible for base station 105-c to indicate that only low priority resources will be preempted (e.g., URLLC traffic may only use a portion of the minimum resource unit that may be indicated for preemption, or a portion that may be indicated for some multiple of the minimum resource unit for preemption). For example, base station 105-c may transmit DLPI 510 to preempt some resources for a certain UE (e.g., UE 3). However, in some cases, the resources to be used by UE3 may only include some subset of the resources that may be indicated by DLPI (e.g., based on granularity limitations). Further, in some cases, UE 115-f may receive URLLC or high priority broadcast information, but its allocation may be unnecessarily preempted (e.g., in some cases, UE 115-f may have been scheduled to receive URLLC or high priority broadcast information using resources that may be unnecessarily preempted due to DLPI granularity constraints). In other examples, UE 115-f may have the same priority or higher priority traffic than UE3 (e.g., where UE 115-f may not be expected to apply DLPI). As such, such scenarios (and other scenarios in which it may be undesirable or inefficient for the UE to apply DLPI) may be avoided or reduced in accordance with the application rules of DLPI described herein.

In some cases, UE 115-e and UE 115-f may be in the same group or different groups. For example, the DCI format of a DLPI (e.g., or ULPI) may include 14 bits (or some multiple of 14 bits). In such examples, every 14 bits may be used for a single UE or multiple UEs (e.g., because multiple UEs may have the same index). In such an example, UE 115-e and UE 115-f may have the same index and read the same 14 bits. As such, if base station 105-c transmits DLPI 510 to previously refrain UE 115-e from using some resources to reallocate resources to UE3, such preemption may be ready for both UE 115-e and UE 115-f and may apply to both UE 115-e and UE 115-f. In some cases, this may undesirably forego UE 115-f from using the downlink resources (such as in examples where UE 115-f may have the same priority or higher priority traffic than UE3, such that UE 115-f may not be expected to apply DLPI).

Downlink communications 505 (e.g., PDCCH) may carry DLPI 510. In some cases, DLPI 510 may be given by a PDCCH whose Cyclic Redundancy Check (CRC) is scrambled with an interrupt radio network temporary identifier (INT-RNTI), and DLPI 510 may be monitored (e.g., by UE 115-e and UE 115-f) in the configured set of slots.

For example, DCI format 2_1 may be used to inform one or more Physical Resource Blocks (PRBs) and one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols for which a UE may assume that no transmission is intended. In some examples, DCI format 2_1 may convey a cancellation indication (e.g., a preemption indicator). For example, base station 105-c may transmit DCI format 2_1 with CRC scrambled by INT-RNTI to convey some { preemption indication 1, preemption indication 2, …, preemption indication N }. The size of DCI format 2_1 may be configured by higher layers, e.g., up to 126 bits (each preemption indicator may include 14 bits).

If the UE is provided with a DLPI 510, the UE may be configured with an INT-RNTI provided by an INT-RNTI for monitoring the PDCCH conveying DCI format 2_ 1. For example, the UE may additionally be configured with a set of serving cells by an INT-configuration PerservingCell (INT-configuration per serving cell) comprising a set of serving cell indices provided by a corresponding serving cell ID and a corresponding set of locations for fields in DCI format 2_1 by a positionInDCI (location in DCI). In some cases, the UE may additionally be configured with an information payload size for DCI format 2_1 by DCI-PayloadSize (e.g., an indicated granularity of time-frequency resources by timefrequency set).

ULPI and DLPI may also be configured to be associated with a particular communication resource in the time domain (which may be configured by RRC configuration (e.g., by base station 105-c) or other configuration). For example, the time domain resources to which the cancellation applies (e.g., corresponding to ULPI) may be indicated in a symbol-level interval (e.g., symbol duration, OFDM symbol duration, etc.), such as a set of 7 symbol durations or a set of 14 symbol durations, or may be indicated in a sub-slot, such as 7 sub-slots each having a length of two symbol durations or four symbol durations. Such partitioning or partitioning may be referred to as time domain resource granularity for cancellation, and in some examples, such time domain resource granularity may be common between uplink cancellation or preemption and downlink cancellation or preemption.

If the UE detects DCI format 2_1 in a PDCCH transmitted in a control resource set (CORESET) in a slot, the symbol set may be the last symbol before the first symbol of CORESET in the slotA code element, wherein T_INTIs the PDCCH monitoring periodicity provided by the value of monitorngslotperiodicityandoffset,is the number of symbols per slot, μ is the subcarrier spacing (SCS) configuration for the serving cell with mapping to the corresponding field in DCI format 2_1, μ _INTIs the SCS configuration in which the UE receives the Downlink (DL) bandwidth part (BWP) of the PDCCH with DCI format 2_ 1. If the UE is provided with TDD-UL-DL-configuration common, it may be from the last symbol before the first symbol of CORESET in the slotSymbols indicated as uplink by TDD-UL-DL-configuration common are excluded from the symbols. The resulting symbol set includes symbols represented as N_INTA plurality of symbols.

If the value of timeFrequencySet is 0, 14 bits of the field in DCI format 2_1 may have a one-to-one mapping with 14 consecutive symbol groups from the symbol set, where the first one isEach of the symbol groups includesOne code element, finallyEach of the symbol groups includesA bit value of 0 may indicate transmission to the UE in the corresponding symbol group, and a bit value of 1 may indicate no transmission to the UE in the corresponding symbol group.

If the value of timeFrequencySet is 1, the 7 bit pairs of the field in DCI format 2_1 have a one-to-one mapping with 7 consecutive symbol groups, where the first one isEach of the symbol groups includesOne code element, finallyEach of the symbol groups includesOne symbol, the first bit in the bit pair of the symbol group being applied to the bit from B _INTBefore a set of PRBsA subset of Physical Resource Blocks (PRBs) with the second bit in a bit pair of a symbol group applied to a data bit from B_INTLast of a set of PRBsA subset of PRBs, a bit value of 0 may indicate transmission to the UE in the corresponding symbol group and PRB subset, and a bit value of 1 may indicate no transmission to the UE in the corresponding symbol group and PRB subset.

In some examples, if an SFN (e.g., SFN structure) is used to broadcast information (e.g., similar to LTE MBMS), the subframe or slot indicated for receiving MBMS may not be used for any other transmission by any other UE. For example, in such cases, bandwidth of a time slot duration or a subframe duration may be allocated to MBMS (e.g., there may be nothing to preempt because no traffic (including URLLC) may be scheduled there). If a single cell architecture (e.g., similar to LTE SC-PTM) is used to transmit broadcast information, a PDCCH scrambled by a group common RNTI (GC-RNTI) may be used to indicate PDSCH resources carrying broadcast information for a group of users. In the same time slot, the base station may transmit downlink to the same user or other users. In some cases, some users may have URLLC that may preempt SC-PTM, some users may have SC-PTM that may preempt eMBB (e.g., SC-PTM traffic may have a higher priority than eMBB traffic from a network perspective), and so on.

The techniques described herein (e.g., rules for DLPI application) may be implemented such that DLPI may not affect a channel with high priority due to its coarse granularity (e.g., where a base station or network may not actually be intended to preempt it). As discussed herein, for DLPI, the base station and UE may consider the gap between two PDCCH monitoring occasions, take all symbols in the gap and remove symbols for the uplink, and group the remaining symbols. For SFN architectures, DLPI may not need to be applied to the slots used for MBMS. Similar to the resource grouping described above (e.g., in the case where uplink symbols may be removed from the symbol list), symbols used/configured for MBMS may be removed from the symbol list between two DLPI occasions. The cancellation bit sequence may then be applied to the remaining symbols (e.g., to the remaining symbols of the warp groupings without the removed symbols). For example, the signaling may indicate to which symbols the DLPI does not apply, and the DLPI may be applied to the remaining symbols.

The DLPI for the group including the uplink MBMS uplink or MBMS may ignore the uplink or MBMS symbols. For example, for 28 symbols, 2 symbols may be used for the uplink, and the remaining 26 symbols may be grouped (and DLPI may be applied to the remaining 26 symbols). For example, base station 105-c may configure a certain number of slots for MBMS, UEs 115-e and 115-f may identify uplink (e.g., or MBMS) symbols/resources, and may increase DLPI granularity by removing MBMS (e.g., or uplink) configured slots to form a smaller group of total configured slots. In some cases, symbols that are semi-statically indicated as uplink may be removed (such symbols may be removed from the formed group). The same applies for MBMS symbols (since the base station may not preempt them anyway). Alternatively, symbols may not be excluded from the DL symbol list, but sequences may not be applied to them (MBMS symbols or slots may not necessarily be removed, but DLPI may not be applied to such symbols or slots).

If the broadcast is similar to SC-PTM, it may be decided whether DLPI applies to it or not (based on preemption application rules) to certain communications. This may also be the case for URLLC. If one UE has URLLC data and receives DLPI, the rule may determine whether the high priority URLLC resource is preempted. Since the granularity of DLPI is coarse, it is not always possible for a base station to indicate only low priority resources. As such, the described techniques may be implemented to order the priority of channels and apply cancellation indications according to the rules described herein. In example wireless communication system 500, UE 115-f may be scheduled to receive URLLC or high priority broadcast information and may receive DLPI 510 (and may identify application rules for DLPI 510). Different channels may have different priorities, which may be known to the UE (e.g., via scheduling DCI format/size at PHY layer, via DCI RNTI, via search space/CORESET for DCI monitoring, bit fields in DCI, etc.). Once the priority is known, DLPI may or may not be applied to some channels according to rules and/or priority.

In general, a DLPI may indicate priority. Then, all channels with the same and lower priority can be preempted if the channel uses the resources indicated by the DLPI. For example, the UE and base station may identify a channel priority list (priority ranking of various channel or traffic types), which may be established by the network, indicated by the base station, and so on. The UE and base station may then understand the preemption rules (e.g., whether ULPI/DLPI will apply to the uplink or downlink scheduled for the UE) from each other and may identify a priority for uplink/downlink communications scheduled for the UE and a priority for ULPI/DLPI. For example, an application of ULPI/DLPI may be based on a channel priority list and a comparison of a priority of scheduled communications (e.g., corresponding to a resource indicated by ULPI/DLPI) to a priority of ULPI/DLPI.

In some cases, this may require a threshold channel priority of traffic type priority, such that all channel types or traffic types above the threshold priority ignore or ignore any ULPI/DLPI, and all channel types or traffic types below the threshold priority follow or apply any ULPI/DLPI. In other examples, ULPI/DLPI may be associated with a priority (e.g., in some cases, ULPI/DLPI bit sequence may include an indication or index of a position on a priority or channel/traffic priority list such that all channel types or traffic types above the indication/index ignore or ignore ULPI/DLPI, and all channel types or traffic types below the indication/index follow or apply any ULPI/DLPI). In still other examples, the base station or network may dynamically configure the priority of ULPI/DLPI (e.g., via RRC signaling).

In general, a DLPI may indicate priority. Then, all channels with the same and lower priority or only the channel with lower priority may be preempted if it is using the resources indicated by the DLPI. To indicate the priority of the DLPI, there may be a bit sequence indicating the priority added to the DLPI/ULPI bit sequence, different RNTIs, different DCI sizes, different CORESET, different search spaces, and/or different DLPI monitoring occasions may indicate different DLPI/ULPI priorities, different indices may be indicated to the UE to indicate the PI for different priorities (e.g., within a DLPI payload, there may be one 14-bit sequence for priority 1 and another bit sequence for priority 2), etc. Alternatively, the UE may be configured not to apply DLPI to some channel priorities (e.g., regardless of DLPI/ULPI priority, or in scenarios where DLPI/ULPI is not associated with different/various priorities, etc.). For example, if the UE receives a downlink assignment indicating a high priority PDSCH, DLPI is not applied to resources used by the high priority PDSCH.

Further, the UE 115 in idle mode may receive broadcast communications. For example, via a System Information Block (SIB), the UE may know which slots to monitor to receive broadcast communications (e.g., the SIB may tell the UE where to monitor the PDCCH that is scheduled to carry the broadcasted PDSCH). In idle mode, the UE may not be configured with DLPI PDCCH monitoring configuration. However, the base station may want to schedule a high priority service on the resources given to the broadcast. A UE in idle mode may receive a DLPI monitoring opportunity via the SIB and attempt to decode it with a given RNTI (e.g., which may allow the base station to reclaim and reallocate the resources given for broadcast in some cases).

Fig. 6 illustrates an example of a process flow 600 supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. In some examples, the process flow 600 may implement aspects of the wireless communication system 100, the wireless communication system 200, the wireless communication system 400, and/or the wireless communication system 500. Further, process flow 600 may be implemented by a UE 115-g and a base station 105-d, which may be examples of the UE 115 and base station 105 described with reference to FIGS. 1-5. In the following description of process flow 600, operations between the UE 115-g and the base station 105-d may be transmitted in a different order than shown, or operations performed by the base station 105-d and the UE 115-g may be performed in a different order or at a different time. Certain operations may also be excluded from the process flow 600 or other operations may be added to the process flow 600. It is to be appreciated that although base station 105-d and UE 115-g are shown performing several of the operations of process flow 600, any wireless device may perform the operations shown.

At 605, the base station 105-d may transmit a downlink control message including an uplink resource allocation for an uplink message (e.g., a downlink control message scheduling transmission of uplink messages by the UE-g using a plurality of time and frequency resources), which may be received by the UE 115-g. For example, a downlink control message may refer to scheduling a PDCCH transmission, e.g., eMBB PUSCH, for a UE 115-g.

At 610, the base station 105-d may identify that traffic of another UE has a first priority higher than the second priority uplink message and that resources for traffic of the other UE overlap (or may interfere with) at least a portion of the plurality of time and frequency resources scheduled at 605. For example, base station 105-d may identify that another URLLC UE has traffic to be communicated using resources (e.g., time resources, frequency resources, and/or spatial resources) that overlap with at least a portion of the resources allocated to UE 115-g at 605. In some cases, this may be referred to as the base station 105-d determining a re-allocation of resources scheduled at 605 (e.g., based on identifying/scheduling another URLLC UE is configured or scheduled for a particular type or class of communication, such as URLLC communication).

At 615, the base station 105-d may identify one or more spatial directions in which transmissions by the UE 115-g are preempted based at least in part on the identification at 610.

At 620, base station 105-d may signal a ULPI, which may be received by UE 115-g. In various examples, the ULPI may be UE-specific or common to a set of one or more UEs 115. For example, the ULPI may be signaled using GC-PDCCH transmission or other DCI or GC-DCI. ULPI indicates one or more spatial directions in which transmissions by UE 115-g are preempted during at least the portion of the plurality of time and frequency resources identified at 610. In some cases, ULPI may refer to a sequence of bits in DCI (e.g., where a first subset of the sequence of bits indicates a portion of the plurality of time and frequency resources to be preempted by UE 115-g and a second subset of the sequence of bits indicates one or more spatial directions to be suppressed by UE 115-g over the portion of the plurality of time and frequency resources).

At 625, UE 115-g may refrain from transmitting an uplink message in the one or more spatial directions during at least the portion of the plurality of time and frequency resources based at least in part on ULPI. In some cases, UE 115-g may identify that the ULPI includes one or more bits corresponding to an SRI, and UE 115-g may determine one or more spatial directions to be suppressed based at least in part on the one or more SRI bits. In some cases, determining the one or more spatial directions to suppress includes determining one or more panels to preempt, one or more precoders to preempt, one or more beams to preempt, or any other beamforming or spatial/directional transmission parameters to be preempted.

At 630, in some cases (e.g., where not all spatial directions are preempted), UE 115-f may transmit an uplink message in a spatial direction different from the one or more spatial directions identified by the ULPI during at least the portion of the plurality of time and frequency resources that overlap with resources reclaimed and reallocated by base station 105-d.

Fig. 7 illustrates an example of a process flow 700 supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. In some examples, process flow 700 may implement aspects of wireless communication system 100, wireless communication system 200, wireless communication system 400, and/or wireless communication system 500. Further, process flow 700 may be implemented by a UE 115-h and a base station 105-e, which may be examples of the UE 115 and base station 105 described with reference to FIGS. 1-6. In the following description of process flow 700, operations between UE 115-h and base station 105-e may be transmitted in a different order than shown, or operations performed by base station 105-e and UE 115-h may be performed in a different order or at a different time. Certain operations may also be excluded from the process flow 700 or other operations may be added to the process flow 700. It is to be appreciated that although base station 105-e and UE 115-h are illustrated as performing several of the operations of process flow 700, any wireless device may perform the illustrated operations.

At 705, the base station 105-e may transmit a downlink message scheduling transmission of a PRS (e.g., or other RS) by the UE 115-h using a plurality of time and frequency resources, which may be received by the UE 115-h.

At 710, the UE 115-h may identify that the UE 115-h is scheduled to transmit PRS using multiple time and frequency resources (e.g., based on a downlink message or downlink control message, such as DCI or PDCCH, received at 705). In some examples, the PRS may be an SRS that includes a usage indication that the SRS is to be used for positioning (e.g., where a rule regarding applying ULPI to a scheduled PRS may be based, at least in part, on the usage indication).

At 715, the base station 105-e may identify that traffic of another UE has a high priority and that resources for traffic of the other UE overlap (or may interfere with) at least a portion of the plurality of time and frequency resources scheduled at 705. For example, base station 105-e may identify that another URLLC UE has traffic to be communicated using resources (e.g., time resources, frequency resources, and/or spatial resources) that overlap with at least a portion of the resources allocated to UE 115-h at 705. In some cases, this may be referred to as the base station 105-e determining that high priority traffic overlaps with resources scheduled at 705 (e.g., based on identifying/scheduling another URLLC UE is configured or scheduled for a particular type or class of communication, such as URLLC communication). In some cases, 710 and 715 may occur in parallel (e.g., overlap at least partially in time) or at different times (e.g., where 710 may occur before 715 or vice versa).

At 720, base station 105-e may transmit a ULPI to UE 115-h, where the ULPI indicates at least a portion of the plurality of time and frequency resources (e.g., a portion of the resources identified at 710) in which transmissions by UE 115-h are preempted (e.g., the ULPI may indicate that resources scheduled by base station 105-e are preempted).

At 725, UE 115-h may determine whether resources preempted (e.g., signaled at 720) by ULPI are cancelled or preempted. That is, UE 115-h may identify a rule regarding applying ULPI to the scheduled PRS (e.g., UE 115-h may identify the rule and determine whether the resource is to be preempted based on the identified rule). As described herein, determining whether an allocation of uplink resources (e.g., for PRS) is revoked (e.g., a rule regarding applying ULPI to scheduled PRS) may be based on a type (e.g., traffic type/priority) of a physical channel associated with a scheduled uplink communication (e.g., a priority of PRS), a physical channel type associated with the ULPI, an allocation type associated with an identified uplink resource allocation, a communication type or priority associated with the ULPI, or a type or priority of a subsequent uplink communication, among others. In some cases, the priority of the DLPI may be identified based on a bit sequence included in the DLPI, an RNTI of the DLPI, a monitoring occasion of the DLPI, or some combination thereof.

At 730, base station 105-e may also determine whether resources preempted by ULPI (e.g., signaled at 720) are cancelled or preempted. That is, base station 105-e may identify rules regarding whether the UE applies ULPI to the scheduled PRS (e.g., so that base station 105-e may anticipate UE 115-h behavior and monitor any communications from UE 115-h accordingly). As described herein, determining whether an allocation of uplink resources (e.g., for PRS) is revoked (e.g., a rule regarding a UE applying ULPI to a scheduled PRS) may be based on a type (e.g., traffic type/priority) of a physical channel associated with the scheduled uplink communication (e.g., a priority of the PRS), a physical channel type associated with the ULPI, an allocation type associated with the identified uplink resource allocation, a communication type or priority associated with the ULPI, or a type or priority of a subsequent uplink communication, among others. In some cases, 725 and 730 may occur in parallel (e.g., overlap at least partially in time) or at different times (e.g., where 725 may occur before 730, where 730 may occur before 725, where 730 may occur after 715, etc.).

At 735, the UE 115-h may transmit (e.g., actually transmit or refrain from transmitting) the scheduled PRS according to a rule (e.g., according to a rule identified by the UE at 725). Similarly, at 735, the base station 105-e can monitor or refrain from monitoring for scheduled PRSs based at least in part on the rules. In general, as discussed herein, the process flow 700 described with reference to PRS may be applied to other specific RSs (e.g., where the application rules of ULPI may be different for different RSs) and by analogy may be applied to other communications without departing from the scope of the present disclosure.

Fig. 8 illustrates an example of a process flow 800 supporting a communication preemption applicability technique in accordance with aspects of the present disclosure. In some examples, process flow 800 may implement aspects of wireless communication system 100, wireless communication system 200, wireless communication system 400, and/or wireless communication system 500. Further, process flow 800 may be implemented by a UE 115-i and a base station 105-f, which may be examples of the UE 115 and base station 105 described with reference to FIGS. 1-7. In the following description of process flow 800, operations between a UE 115-i and a base station 105-f may be transmitted in a different order than shown, or operations performed by the base station 105-f and the UE 115-i may be performed in a different order or at a different time. Certain operations may also be excluded from the process flow 800 or other operations may be added to the process flow 800. It is to be appreciated that although base station 105-f and UE 115-i are shown performing several operations of process flow 800, any wireless device may perform the operations shown.

At 805, the base station 105-f may transmit a downlink control message to the UE 115-i that includes an uplink resource allocation for an uplink message (e.g., a downlink control message that schedules reception of the downlink message by the UE 115-i using a plurality of time and frequency resources). For example, a downlink control message may refer to a PDCCH transmission that schedules, for example, an eMBB PDSCH for UE 115-i, a URLLC PDSCH for UE 115-i, broadcast signaling for UE 115-i, or some other type of traffic.

At 810, the base station 105-f may identify that traffic of another UE has a high priority and that resources for traffic of another UE overlap (or may interfere) at least a portion of a plurality of time and frequency resources scheduled to a certain UE (which may be UE 115-i or some other UE). For example, base station 105-f may identify that another URLLC UE has traffic to be communicated using resources (e.g., time, frequency, and/or spatial resources) that overlap at least a portion of the resources that have been previously allocated, and base station 105-f will reclaim and reallocate the resource portion.

At 815, the base station 105-f may transmit a DLPI to the UE 115-i, where the DLPI indicates that one or more communications (e.g., time/frequency/space resources associated with the one or more communications) are preempted during at least the portion of the plurality of time and frequency resources (e.g., identified by the base station at 810).

At 820, UE 115-i may identify the application rules for DLPI (e.g., determine whether the resources preempted by DLPI are to be cancelled/preempted or DLPI should not be applied and the resources indicated by DLPI should not be cancelled/preempted). In some cases, the rules may be based on a physical channel type (e.g., traffic type/priority) associated with the scheduled downlink communication (e.g., priority of the downlink communication), a physical channel type associated with the DLPI, an allocation type associated with the identified downlink resource allocation, a communication type or priority associated with the DLPI, and so on.

In some examples, UE 115-i may identify a channel priority list, identify a priority of one or more communications (e.g., scheduled at 805), and identify a priority of DLPI, where the application rules of DLPI may be based on the channel priority list (e.g., how the network or base station has prioritized the types of traffic or communications supported by the network) and a comparison of the priority of the one or more communications to the priority of DLPI. In some cases, the channel priority list may be identified based at least in part on a format of the downlink control message, a size of the downlink control message, an RNTI of the downlink control message, a search space or set of control resources for monitoring the downlink control message, an indication in the downlink control message, or some combination thereof.

At 825, base station 105-f may identify rules regarding UE 115-i applying DLPI (e.g., determine whether resources preempted by DLPI will be cancelled/preempted by UE 115-i or whether DLPI will not be applied by UE 115-i and resources indicated by DLPI will be used by UE 115-i). In some cases, the rules may be based on a physical channel type (e.g., traffic type/priority) associated with the scheduled downlink communication (e.g., priority of the downlink communication), a physical channel type associated with the DLPI, an allocation type associated with the identified downlink resource allocation, a communication type or priority associated with the DLPI, and so on.

In some examples, base station 105-f may identify a channel priority list, identify a priority of one or more communications (e.g., scheduled at 805), and identify a priority of a DLPI, where the application rules of the DLPI may be based on the channel priority list (e.g., how the network or base station has prioritized the types of traffic or communications supported by the network) and a comparison of the priority of the one or more communications to the priority of the DLPI. In some cases, the channel priority list may be communicated by base station 105-f to UE 115-i based at least in part on a format of a downlink control message, a size of the downlink control message, an RNTI of the downlink control message, a search space or set of control resources for monitoring the downlink control message, an indication in the downlink control message, or some combination thereof.

At 830, according to the rules, UE 115-i may monitor and receive or not monitor downlink communications scheduled at 805 based on the rules (e.g., based on whether DLPI is applied to resources associated with the downlink communications).

Fig. 9 illustrates a block diagram 900 of a device 905 that supports communication preemption applicability techniques in accordance with aspects of the present disclosure. The device 905 may be an example of aspects of a UE 115 as described herein. The device 905 may include a receiver 910, a communication manager 915, and a transmitter 920. The device 905 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

Receiver 910 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to communication preemption applicability techniques, etc.). Information may be passed to other components of device 905. The receiver 910 may be an example of aspects of the transceiver 1220 described with reference to fig. 12. Receiver 910 can utilize a single antenna or a set of antennas.

Communications manager 915 may receive, at the UE, a downlink control message that schedules transmission of an uplink message by the UE using a set of time and frequency resources; receiving, at the UE, an uplink preemption indicator, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and refrain from transmitting an uplink message in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator.

The communications manager 915 may also identify, at the UE, that the UE is scheduled to transmit positioning reference signals using a set of time and frequency resources; transmitting a scheduled positioning reference signal according to a rule; receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; and identifying a rule to apply the uplink preemption indicator to the scheduled positioning reference signal.

The communications manager 915 may also receive, at the UE, a downlink control message that schedules a set of time and frequency resources for downlink communications including at least one of a multimedia broadcast multicast service communication, a single cell point-to-multipoint communication, an ultra-reliable low latency communication, or downlink traffic having a first priority higher than a second priority of different downlink traffic; receiving a downlink preemption indicator at a UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of a set of time and frequency resources; identifying a rule to apply a downlink preemption indicator; and receiving the one or more communications according to the rule. The communication manager 915 may be an example of aspects of the communication manager 1210 as described herein.

The communication manager 915 or subcomponents thereof may be implemented in hardware, in code executed by a processor (e.g., software or firmware), or in any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 915 or subcomponents thereof may be performed by a general purpose processor, a DSP, an Application Specific Integrated Circuit (ASIC), an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

The communication manager 915, or subcomponents thereof, may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, the communication manager 915 or subcomponents thereof may be separate and distinct components in accordance with various aspects of the present disclosure. In some examples, the communication manager 915 or subcomponents thereof may be combined with one or more other hardware components, including but not limited to an input/output (I/O) component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof, in accordance with various aspects of the present disclosure.

The actions performed by the communication manager 915 as described herein may be implemented to achieve one or more potential advantages. One implementation may allow the UE 115 to conserve power and increase battery life by more effectively balancing performance and resource utilization for communications according to different priorities. Another implementation may provide improved quality of service and reliability at the UE 115, as the number of individual resources allocated to the UE 115 may be reduced.

Transmitter 920 may transmit signals generated by other components of device 905. In some examples, the transmitter 920 may be co-located with the receiver 910 in a transceiver module. For example, the transmitter 920 may be an example of aspects of the transceiver 1220 described with reference to fig. 12. Transmitter 920 may utilize a single antenna or a set of antennas.

Fig. 10 illustrates a block diagram 1000 of a device 1005 supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. The device 1005 may be an example of aspects of the device 905 or the UE 115 as described herein. Device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1050. The device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

Receiver 1010 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to communication preemption applicability techniques, etc.). Information may be communicated to other components of the device 1005. The receiver 1010 may be an example of aspects of the transceiver 1220 described with reference to fig. 12. Receiver 1010 may utilize a single antenna or a set of antennas.

The communication manager 1015 may be an example of aspects of the communication manager 915 as described herein. Communication manager 1015 may include a schedule manager 1020, an ULPI manager 1025, a spatial transport manager 1030, an RS manager 1035, a DLPI manager 1040, and a downlink communication manager 1045. The communication manager 1015 may be an example of aspects of the communication manager 1210 described herein.

Scheduling manager 1020 may receive, at a UE, a downlink control message that schedules transmission of an uplink message by the UE using a set of time and frequency resources. ULPI manager 1025 may receive an uplink preemption indicator at the UE, where the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources. The spatial transmission manager 1030 may refrain from transmitting uplink messages in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator.

The RS manager 1035 may identify, at the UE, that the UE is scheduled to transmit a positioning reference signal using a set of time and frequency resources. ULPI manager 1025 may receive an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted, and identify a rule to apply the uplink preemption indicator to scheduled positioning reference signals. The RS manager 1035 may transmit the scheduled positioning reference signal according to the rules.

The scheduling manager 1020 may receive, at the UE, a downlink control message scheduling a set of time and frequency resources for downlink communications including at least one of a multimedia broadcast multicast service communication, a single cell point-to-multipoint communication, an ultra-reliable low latency communication, or downlink traffic having a first priority higher than a second priority of different downlink traffic. The DLPI manager 1040 may receive a downlink preemption indicator at the UE, where the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources and identifies a rule to apply the downlink preemption indicator. The downlink communication manager 1045 may receive the one or more communications according to the rules.

The transmitter 1050 may transmit signals generated by other components of the device 1005. In some examples, the transmitter 1050 may be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1050 may be an example of aspects of the transceiver 1220 described with reference to fig. 12. Transmitter 1050 may utilize a single antenna or a set of antennas.

Fig. 11 illustrates a block diagram 1100 of a communication manager 1105 supporting communication preemption applicability techniques in accordance with various aspects of the present disclosure. The communication manager 1105 may be an example of aspects of the communication manager 915, the communication manager 1015, or the communication manager 1210 described herein. Communication manager 1105 may include a schedule manager 1110, a ULPI manager 1115, a spatial transmission manager 1120, an SRI manager 1125, a transmission panel manager 1130, a precoder manager 1135, an RS manager 1140, a DLPI manager 1145, and a downlink communication manager 1150. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

The scheduling manager 1110 may receive, at a UE, a downlink control message that schedules transmission of an uplink message by the UE using a set of time and frequency resources. In some examples, scheduling manager 1110 may receive, at a UE, a downlink control message scheduling a set of time and frequency resources for downlink communications including at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different downlink traffic. In some examples, scheduling manager 1110 may identify a set of time and frequency resources from the downlink control message that includes a set of time and frequency resources for downlink communications, wherein the downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources.

In some examples, scheduling manager 1110 may identify a set of time and frequency resources including one or more multimedia broadcast multicast service symbols from a downlink control message, wherein the downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources. In some examples, scheduling manager 1110 may identify a set of time and frequency resources including one or more uplink symbols from a downlink control message, wherein the downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources.

ULPI manager 1115 may receive an uplink preemption indicator at a UE, where the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources. In some examples, ULPI manager 1115 may receive an uplink preemption indicator at a UE, where the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted. In some examples, ULPI manager 1115 may identify a rule to apply an uplink preemption indicator to a scheduled positioning reference signal. In some examples, ULPI manager 1115 may receive radio resource control signaling indicating a relationship between a second subset of bit sequences and one or more spatial directions. In some examples, ULPI manager 1115 may refrain from transmitting a positioning reference signal using the portion of the set of time and frequency resources based on applying an uplink preemption indicator to a scheduled positioning reference signal according to a rule.

In some examples, ULPI manager 1115 may receive an indication of a rule, where the rule is identified based on the indication. In some examples, ULPI manager 1115 may determine that the portion of the set of time and frequency resources in which transmissions by the UE are preempted corresponds to the set of time and frequency resources, wherein the rule is identified based on the determination. In some cases, the uplink preemption indicator includes a bit sequence in the downlink control information. In some cases, a first subset of the bit sequence indicates the portion of the set of time and frequency resources and a second subset of the bit sequence indicates the one or more spatial directions. In some cases, the relationship indicates a mapping of one or more sounding reference signal resource indicators to one or more bit values represented by the second subset of the bit sequence.

The spatial transmission manager 1120 may refrain from transmitting uplink messages in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator. In some examples, the spatial transmission manager 1120 may transmit the uplink message in a spatial direction different from the one or more spatial directions identified by the uplink preemption indicator during at least the portion of the set of time and frequency resources. In some examples, the spatial transmission manager 1120 may determine one or more spatial directions based on one or more bits.

The RS manager 1140 may identify at the UE that the UE is scheduled to transmit positioning reference signals using a set of time and frequency resources. In some examples, the RS manager 1140 may transmit the scheduled positioning reference signal according to a rule. In some examples, the RS manager 1140 may transmit the positioning reference signal using the set of time and frequency resources regardless of whether the uplink preemption indicator indicates at least the portion of the set of time and frequency resources. In some cases, the positioning reference signal is a sounding reference signal that includes a usage indication that the sounding reference signal is to be used for positioning, wherein applying the uplink preemption indicator to the scheduled positioning reference signal is based on the usage indication. In some cases, a rule is identified based on the usage indication.

The DLPI manager 1145 may receive a downlink preemption indicator at the UE, where the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources. In some examples, DLPI manager 1145 may identify a rule to apply the downlink preemption indicator. In some examples, DLPI manager 1145 may identify a channel priority list. In some examples, the DLPI manager 1145 may identify a priority of one or more communications. In some examples, DLPI manager 1145 may identify a priority of the downlink preemption indicator, where the rule to apply the downlink preemption indicator is based on a channel priority list and a comparison of a priority of one or more communications to a priority of the downlink preemption indicator.

In some examples, DLPI manager 1145 may receive, at the UE, an indication of the rule in radio resource control signaling, a downlink control message, or both. In some examples, the DLPI manager 1145 may receive the downlink preemption indicator monitoring configuration in a system information block at the UE. In some examples, the DLPI manager 1145 may identify the radio network temporary identifier. In some examples, the DLPI manager 1145 may decode the downlink preemption indicator based on the identified radio network temporary identifier and the received downlink preemption indicator monitoring configuration. In some cases, the channel priority list is identified based on a format of the downlink control message, a size of the downlink control message, a radio network temporary identifier of the downlink control message, a search space or set of control resources for monitoring the downlink control message, an indication in the downlink control message, or some combination thereof. In some cases, the priority of the downlink preemption indicator is identified based on a bit sequence included in the downlink preemption indicator, a radio network temporary identifier of the downlink preemption indicator, a monitoring occasion for the downlink preemption indicator, or some combination thereof. In some cases, the indication includes a priority indication for at least a portion of a set of scheduled time and frequency resources for downlink communications.

The downlink communication manager 1150 may receive the one or more communications according to rules. SRI manager 1125 may identify that an uplink preemption indicator includes one or more bits corresponding to a sounding reference signal resource indicator. The transmission panel manager 1130 may identify, based on the one or more bits, one or more panels for which transmissions by the UE are preempted during at least the portion of the set of time and frequency resources, wherein the one or more spatial directions are determined based on the identified one or more panels. The precoder manager 1135 may identify, based on the one or more bits, one or more precoders for which transmissions by the UE are preempted during at least the portion of the set of time and frequency resources, wherein one or more spatial directions are determined based on the identified one or more precoders.

Fig. 12 shows a diagram of a system 1200 including a device 1205 that supports communication preemption applicability techniques in accordance with aspects of the present disclosure. Device 1205 may be an example of device 905, device 1005, or UE 115 as described herein or include components of device 905, device 1005, or UE 115. The device 1205 may include components for two-way voice and data communications including components for transmitting and receiving communications including a communications manager 1210, an I/O controller 1215, a transceiver 1220, an antenna 1225, a memory 1230, and a processor 1240. These components may be in electronic communication via one or more buses, such as bus 1245.

The communications manager 1210 may receive, at a UE, a downlink control message scheduling transmission of an uplink message by the UE using a set of time and frequency resources, receive, at the UE, an uplink preemption indicator indicating one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources, and refrain from transmitting the uplink message in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator.

The communications manager 1210 may also identify, at the UE, that the UE is scheduled to transmit a positioning reference signal using a set of time and frequency resources; transmitting a scheduled positioning reference signal according to a rule; receiving an uplink preemption indicator at the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; and identifying a rule to apply the uplink preemption indicator to the scheduled positioning reference signal.

The communications manager 1210 may also receive, at the UE, a downlink control message scheduling a set of time and frequency resources for downlink communications including at least one of a multimedia broadcast multicast service communication, a single cell point-to-multipoint communication, an ultra-reliable low latency communication, or downlink traffic having a first priority higher than a second priority of different downlink traffic; receiving a downlink preemption indicator at a UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of a set of time and frequency resources; identifying a rule to apply a downlink preemption indicator; and receiving the one or more communications according to the rule.

I/O controller 1215 may manage input and output signals for device 1205. The I/O controller 1215 may also manage peripheral devices that are not integrated into the device 1205. In some cases, I/O controller 1215 may represent a physical connection or port to an external peripheral device. In some cases, the I/O controller 1215 may utilize an operating system, such as Or another known operating system. In other cases, the I/O controller 1215 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, the I/O controller 1215 may be implemented as part of a processor. In some cases, a user may interact with device 1205 via I/O controller 1215 or via hardware components controlled by I/O controller 1215.

The transceiver 1220 may communicate bi-directionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1220 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1220 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, as well as to demodulate packets received from the antenna.

In some cases, the wireless device may include a single antenna 1225. However, in some cases, the device may have more than one antenna 1225, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.

Memory 1230 may include RAM and ROM. The memory 1230 may store computer-readable, computer-executable code or software 1235 that includes instructions that, when executed, cause the processor to perform various functions described herein. In some cases, memory 1230 may contain, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

Processor 1240 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combinations thereof). In some cases, processor 1240 may be configured to operate a memory array using a memory controller. In other cases, a memory controller may be integrated into processor 1240. Processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1230) to cause device 1205 to perform various functions (e.g., functions or tasks to support communication preemption applicability techniques).

Based on preempting only the potentially interfering spatial direction, the processor of UE 115 may efficiently use resources that would otherwise be unnecessarily preempted. The processor of the UE 115 may turn on one or more processing units for utilizing unnecessary resources, increase a processing clock, or similar mechanisms within the UE 115. As such, when resources are more efficiently used, the processor may be ready to respond more efficiently by reducing the ramp up of processing power.

The software 1235 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communications. The software 1235 may be stored in a non-transitory computer readable medium, such as system memory or other type of memory. In some cases, the software 1235 may not be directly executable by the processor 1240, but may cause the computer (e.g., when compiled and executed) to perform the functions described herein.

Fig. 13 illustrates a block diagram 1300 of a device 1305 supporting communication preemption applicability techniques in accordance with various aspects of the present disclosure. The device 1305 may be an example of aspects of a base station 105 as described herein. Device 1305 may include a receiver 1310, a communication manager 1315, and a transmitter 1320. The device 1305 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

Receiver 1310 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, information related to communication preemption applicability techniques, etc.). Information may be communicated to other components of the device 1305. The receiver 1310 may be an example of aspects of the transceiver 1620 described with reference to fig. 16. Receiver 1310 may utilize a single antenna or a set of antennas.

The communications manager 1315 may transmit a downlink control message to the UE that schedules transmission of an uplink message by the UE using a set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and monitoring for an uplink message during at least the portion of the set of time and frequency resources based on the transmitted uplink preemption indicator.

The communications manager 1315 may also transmit a downlink message to the UE scheduling transmission of positioning reference signals by the UE using the set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule for the UE to apply the uplink preemption indicator to the scheduled positioning reference signal; and monitoring the scheduled positioning reference signal based on the rule.

The communications manager 1315 may also transmit, to the UE, a downlink control message that schedules a set of time and frequency resources for downlink communications including at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different DL traffic; transmitting a downlink preemption indicator to the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources; identifying a rule for the UE to apply a downlink preemption indicator; and monitoring the one or more communications based on the rule. The communication manager 1315 may be an example of aspects of the communication manager 1610 described herein.

The communication manager 1315, or subcomponents thereof, may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1315 or subcomponents thereof may be performed by a general purpose processor, a DSP, an Application Specific Integrated Circuit (ASIC), an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in this disclosure.

The communication manager 1315, or subcomponents thereof, may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, the communication manager 1315, or subcomponents thereof, may be separate and distinct components in accordance with various aspects of the present disclosure. In some examples, the communication manager 1315 or subcomponents thereof may be combined with one or more other hardware components, including but not limited to an input/output (I/O) component, a transceiver, a network server, another computing device, one or more other components described in this disclosure, or a combination thereof, in accordance with various aspects of the present disclosure.

The actions performed by the communication manager 915 as described herein may be implemented to achieve one or more potential advantages. One implementation may allow the base station 105 to save power and increase battery life by more effectively balancing performance and resource utilization of communications according to different priorities. Another implementation may provide improved quality of service and reliability at the base station 105, as the number of individual resources allocated by the base station 105 may be reduced.

Transmitter 1320 may transmit signals generated by other components of device 1305. In some examples, the transmitter 1320 may be co-located with the receiver 1310 in a transceiver module. For example, the transmitter 1320 may be an example of aspects of the transceiver 1620 described with reference to fig. 16. The transmitter 1320 may utilize a single antenna or a set of antennas.

Fig. 14 illustrates a block diagram 1400 of a device 1405 supporting communication preemption applicability techniques in accordance with various aspects of the present disclosure. The device 1405 may be an example of aspects of the device 1305 or the base station 105 as described herein. The device 1405 may include a receiver 1410, a communication manager 1415, and a transmitter 1445. The device 1405 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

Receiver 1410 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, information related to communication preemption applicability techniques, etc.). Information may be passed to other components of the device 1405. The receiver 1410 may be an example of aspects of the transceiver 1620 described with reference to fig. 16. Receiver 1410 may utilize a single antenna or a set of antennas.

The communication manager 1415 may be an example of aspects of the communication manager 1315 as described herein. Communication manager 1415 may include a scheduling manager 1420, a ULPI manager 1425, an uplink communication manager 1430, a DLPI manager 1435, and a downlink communication manager 1440. The communication manager 1415 may be an example of aspects of the communication manager 1610 described herein.

The scheduling manager 1420 may transmit a downlink control message to the UE that schedules transmission of an uplink message by the UE using a set of time and frequency resources. ULPI manager 1425 may transmit an uplink preemption indicator to the UE, where the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources. The uplink communication manager 1430 can monitor for uplink messages during at least the portion of the set of time and frequency resources based on the transmitted uplink preemption indicator.

The scheduling manager 1420 may transmit a downlink message to the UE scheduling transmission of positioning reference signals by the UE using a set of time and frequency resources. ULPI manager 1425 may transmit an uplink preemption indicator to the UE, where the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted, and identify a rule regarding the UE applying the uplink preemption indicator to scheduled positioning reference signals. The uplink communication manager 1430 can monitor the scheduled positioning reference signal based on the rule.

The scheduling manager 1420 may transmit a downlink control message to the UE scheduling a set of time and frequency resources for downlink communications including at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different DL traffic. The DLPI manager 1435 may transmit a downlink preemption indicator to the UE, where the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources and identifies a rule for the UE to apply the downlink preemption indicator. The downlink communication manager 1440 may monitor one or more communications based on the rules.

Transmitter 1445 may transmit signals generated by other components of device 1405. In some examples, the transmitter 1445 may be co-located with the receiver 1410 in a transceiver module. For example, the transmitter 1445 may be an example of aspects of the transceiver 1620 described with reference to fig. 16. The transmitter 1445 may utilize a single antenna or a set of antennas.

Fig. 15 illustrates a block diagram 1500 of a communication manager 1505 that supports communication preemption applicability techniques in accordance with various aspects of the present disclosure. Communication manager 1505 may be an example of aspects of communication manager 1315, communication manager 1415, or communication manager 1610 described herein. Communications manager 1505 may include a scheduling manager 1510, a ULPI manager 1515, an uplink communications manager 1520, a traffic priority manager 1525, an SRI manager 1530, a DLPI manager 1535, and a downlink communications manager 1540. Each of these modules may communicate with each other directly or indirectly (e.g., via one or more buses).

The scheduling manager 1510 may transmit a downlink control message to the UE scheduling the transmission of uplink messages by the UE using a set of time and frequency resources. In some examples, the scheduling manager 1510 may transmit a downlink message to the UE scheduling the transmission of positioning reference signals by the UE using a set of time and frequency resources. In some examples, the scheduling manager 1510 may transmit a downlink control message to the UE scheduling a set of time and frequency resources for downlink communications including at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different DL traffic.

ULPI manager 1515 may transmit an uplink preemption indicator to the UE, where the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources. In some examples, ULPI manager 1515 may transmit an uplink preemption indicator to the UE, where the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted. In some examples, ULPI manager 1515 may identify rules regarding the UE applying an uplink preemption indicator to scheduled positioning reference signals. In some examples, ULPI manager 1515 may transmit radio resource control signaling indicating a relationship between the second subset of the bit sequence and one or more spatial directions. In some examples, ULPI manager 1515 may transmit an indication of the rule to the UE.

In some examples, ULPI manager 1515 may determine that the portion of the set of time and frequency resources in which transmissions by the UE are preempted corresponds to the set of time and frequency resources, wherein the rule is identified based on the determination. In some cases, the uplink preemption indicator includes a bit sequence in the downlink control information. In some cases, a first subset of the bit sequence indicates the portion of the set of time and frequency resources and a second subset of the bit sequence indicates the one or more spatial directions. In some cases, the relationship indicates a mapping of one or more sounding reference signal resource indicators to one or more bit values represented by the second subset of the bit sequence.

The uplink communication manager 1520 can monitor for uplink messages during at least the portion of the set of time and frequency resources based on the transmitted uplink preemption indicator. In some examples, the uplink communication manager 1520 may monitor the scheduled positioning reference signal based on the rule. In some examples, the uplink communication manager 1520 may receive the uplink message in a spatial direction different from the one or more spatial directions indicated by the uplink preemption indicator during at least the portion of the set of time and frequency resources. In some examples, the uplink communication manager 1520 may identify one or more spatial directions in which transmissions by the UE are preempted based on identifying that traffic of another UE has a first priority higher than a second priority of the uplink message.

In some examples, the uplink communication manager 1520 may identify one or more precoders to which transmissions by the UE are preempted during at least the portion of the set of time and frequency resources, wherein the sounding reference signal resource indicator is identified based on the one or more precoders. In some examples, the uplink communication manager 1520 may monitor for uplink messages in a spatial direction different from the one or more spatial directions indicated by the uplink preemption indicator during at least the portion of the set of time and frequency resources. In some examples, the uplink communication manager 1520 may refrain from using the portion of the set of time and frequency resources to monitor for positioning reference signals based on a rule.

In some examples, the uplink communications manager 1520 may receive the positioning reference signal using the set of time and frequency resources based on the rule, regardless of whether the uplink preemption indicator indicates at least the portion of the set of time and frequency resources. In some cases, the positioning reference signal is a sounding reference signal that includes a usage indication that the sounding reference signal is to be used for positioning. In some cases, the rules are identified based on the usage indication.

The DLPI manager 1535 may transmit a downlink preemption indicator to the UE, where the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources. In some examples, the DLPI manager 1535 may identify a rule for the UE to apply the downlink preemption indicator. In some examples, the DLPI manager 1535 may transmit the indication of the rule to the UE in radio resource control signaling, a downlink control message, or both. In some examples, the DLPI manager 1535 may transmit the downlink preemption indicator monitoring configuration to the UE in a system information block. In some examples, the DLPI manager 1535 may identify the radio network temporary identifier. In some examples, the DLPI manager 1535 may encode the downlink preemption indicator based on the identified radio network temporary identifier.

In some examples, the DLPI manager 1535 may determine a set of time and frequency resources from a set of time and frequency resources scheduled by the downlink control message that includes the set of time and frequency resources for downlink communications, wherein the downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources. In some examples, the DLPI manager 1535 may determine a set of time and frequency resources including one or more multimedia broadcast multicast service symbols from a set of time and frequency resources scheduled by the downlink control message, wherein the downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources. In some examples, the DLPI manager 1535 may determine a set of time and frequency resources including one or more uplink symbols from a set of time and frequency resources scheduled by the downlink control message, wherein the downlink preemption indicator indicates one or more preempted communications based on the set of time and frequency resources. In some cases, the indication includes a priority indication for at least a portion of a set of scheduled time and frequency resources for downlink communications.

Downlink communications manager 1540 can monitor one or more communications based on the rules. The traffic priority manager 1525 may identify that traffic of another UE has a first priority higher than a second priority of the uplink message. In some examples, the traffic priority manager 1525 may identify a channel priority list. In some examples, the traffic priority manager 1525 may identify a priority of one or more communications. In some examples, the traffic priority manager 1525 may identify a priority of the downlink preemption indicator, wherein a rule regarding the UE applying the downlink preemption indicator is based on a channel priority list and a comparison of the priority of one or more communications to the priority of the downlink preemption indicator. In some examples, the traffic priority manager 1525 may determine a format of the downlink control message, a size of the downlink control message, a radio network temporary identifier of the downlink control message, a search space or set of control resources for monitoring the downlink control message, an indication in the downlink control message, or some combination thereof, based on a channel priority list, wherein the channel priority list is indicated to the UE based on the determination.

In some examples, the traffic priority manager 1525 may determine a bit sequence included in the downlink preemption indicator, a radio network temporary identifier of the downlink preemption indicator, a monitoring occasion for the downlink preemption indicator, or some combination thereof based on a priority of the downlink preemption indicator, wherein the priority of the downlink preemption indicator is indicated to the UE based on the determination. The SRI manager 1530 may identify one or more bits corresponding to the sounding reference signal resource indicator based on the identified one or more spatial directions, wherein the uplink preemption indicator indicates the one or more spatial directions based on the sounding reference signal resource indicator.

Fig. 16 shows a diagram of a system 1600 including a device 1605 supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. Device 1605 may be or include an example of device 1305, device 1405 or base station 105 as described herein. Device 1605 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communications manager 1610, a network communications manager 1615, a transceiver 1620, an antenna 1625, memory 1630, a processor 1640, and an inter-station communications manager 1645. These components may be in electronic communication via one or more buses, such as bus 1650.

The communications manager 1610 may transmit to the UE a downlink control message that schedules transmission of an uplink message by the UE using a set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources; and monitoring for an uplink message during at least the portion of the set of time and frequency resources based on the transmitted uplink preemption indicator.

The communications manager 1610 may also transmit to the UE a downlink message scheduling the transmission of positioning reference signals by the UE using a set of time and frequency resources; transmitting an uplink preemption indicator to the UE, wherein the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted; identifying a rule for the UE to apply the uplink preemption indicator to the scheduled positioning reference signal; and monitoring the scheduled positioning reference signal based on the rule.

The communication manager 1610 may also transmit to the UE a downlink control message scheduling a set of time and frequency resources for downlink communications including at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different DL traffic; transmitting a downlink preemption indicator to the UE, wherein the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources; identifying a rule for the UE to apply a downlink preemption indicator; and monitoring the one or more communications based on the rule.

The network communications manager 1615 may manage communications with the core network (e.g., via one or more wired backhaul links). For example, the network communication manager 1615 may manage the communication of data communications for client devices (such as one or more UEs 115).

The transceiver 1620 may communicate bi-directionally via one or more antennas, wired or wireless links, as described above. For example, transceiver 1620 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1620 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and to demodulate packets received from the antenna.

In some cases, the wireless device may include a single antenna 1625. However, in some cases, the device may have more than one antenna 1625, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.

The memory 1630 may include RAM, ROM, or a combination thereof. The memory 1630 may store computer readable code or software 1635 that includes instructions that, when executed by a processor (e.g., processor 1640), cause the device to perform various functions described herein. In some cases, memory 1630 may contain, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

Processor 1640 may comprise intelligent hardware devices (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, the processor 1640 may be configured to operate a memory array using a memory controller. In some cases, a memory controller may be integrated into processor 1640. The processor 1640 may be configured to execute computer readable instructions stored in a memory (e.g., memory 1630) to cause the device 1605 to perform various functions (e.g., functions or tasks that support communication preemption applicability techniques).

Based on preempting only the potentially interfering spatial direction, the processor of the base station 105 may efficiently use resources that would otherwise be unnecessarily preempted. As such, when resources are more efficiently used, the processor may be ready to respond more efficiently by reducing the ramp up of processing power.

An inter-station communication manager 1645 may manage communication with other base stations 105 and may include a controller or scheduler for controlling communication with UEs 115 in cooperation with other base stations 105. For example, the inter-station communication manager 1645 may coordinate scheduling of transmissions to UEs 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-station communication manager 1645 may provide an X2 interface within LTE/LTE-a wireless communication network technology to provide communication between base stations 105.

The software 1635 may include instructions for implementing aspects of the present disclosure, including instructions for supporting wireless communications. The software 1635 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the software 1635 may not be directly executed by the processor 1640, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

Fig. 17 shows a flow diagram illustrating a method 1700 of supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. The operations of method 1700 may be implemented by a UE 115 or components thereof as described herein. For example, the operations of method 1700 may be performed by a communication manager as described with reference to fig. 9-12. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

At 1705, the UE may receive a downlink control message at the UE that schedules transmission of an uplink message by the UE using a set of time and frequency resources. 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed by a schedule manager as described with reference to fig. 9-12.

At 1710, the UE may receive an uplink preemption indicator at the UE, where the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources. The operations of 1710 may be performed according to the methods described herein. In some examples, aspects of the operations of 1710 may be performed by a ULPI manager as described with reference to fig. 9-12.

At 1715, the UE may refrain from transmitting an uplink message in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator. 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be performed by a spatial transport manager as described with reference to fig. 9-12.

Fig. 18 shows a flow diagram illustrating a method 1800 of supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. The operations of method 1800 may be implemented by UE 115 or components thereof as described herein. For example, the operations of method 1800 may be performed by a communications manager as described with reference to fig. 9-12. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

At 1805, the UE may receive, at the UE, a downlink control message that schedules transmission of an uplink message by the UE using a set of time and frequency resources. 1805 may be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1805 may be performed by a schedule manager as described with reference to fig. 9-12.

At 1810, the UE may receive an uplink preemption indicator at the UE, where the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources. 1810 may be performed in accordance with the methods described herein. In some examples, aspects of the operations of 1810 may be performed by a ULPI manager as described with reference to fig. 9-12.

At 1815, the UE may refrain from transmitting an uplink message in the one or more spatial directions during at least the portion of the set of time and frequency resources based on the uplink preemption indicator. 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be performed by a spatial transport manager as described with reference to fig. 9-12.

At 1820, the UE may transmit an uplink message in a spatial direction different from the one or more spatial directions identified by the uplink preemption indicator during at least the portion of the set of time and frequency resources. 1820 the operations may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be performed by a spatial transport manager as described with reference to fig. 9-12.

Fig. 19 shows a flow diagram illustrating a method 1900 of supporting communication preemption applicability techniques in accordance with various aspects of the present disclosure. The operations of the method 1900 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of method 1900 may be performed by a communication manager as described with reference to fig. 9-12. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

At 1905, the UE may identify at the UE that the UE is scheduled to transmit a positioning reference signal using a set of time and frequency resources. 1905 may be performed according to the methods described herein. In some examples, aspects of the operations of 1905 may be performed by an RS manager as described with reference to fig. 9-12.

At 1910, the UE may receive an uplink preemption indicator at the UE, where the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted. 1910 may be performed according to the methods described herein. In some examples, aspects of the operations of 1910 may be performed by a ULPI manager as described with reference to fig. 9-12.

At 1915, the UE may identify a rule to apply the uplink preemption indicator to the scheduled positioning reference signal. 1915 may be performed according to the methods described herein. In some examples, aspects of the operations of 1915 may be performed by a ULPI manager as described with reference to fig. 9-12.

At 1920, the UE may transmit the scheduled positioning reference signal according to the rule. The operations of 1920 may be performed according to the methods described herein. In some examples, aspects of the operations of 1920 may be performed by the RS manager as described with reference to fig. 9-12.

Fig. 20 shows a flow diagram illustrating a method 2000 of supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. The operations of method 2000 may be implemented by UE 115 or components thereof as described herein. For example, the operations of method 2000 may be performed by a communication manager as described with reference to fig. 9-12. In some examples, the UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform aspects of the functions described below.

At 2005, a UE may receive, at the UE, a downlink control message scheduling a set of time and frequency resources for downlink communications including at least one of a multimedia broadcast multicast service communication, a single cell point-to-multipoint communication, an ultra-reliable low latency communication, or downlink traffic having a first priority higher than a second priority of different downlink traffic. 2005 may be performed according to the methods described herein. In some examples, aspects of the operations of 2005 may be performed by a schedule manager as described with reference to fig. 9-12.

At 2010, the UE may receive a downlink preemption indicator at the UE, where the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources. The operations of 2010 may be performed in accordance with the methods described herein. In some examples, aspects of the operations of 2010 may be performed by a DLPI manager as described with reference to fig. 9-12.

At 2015, the UE may identify a rule to apply the downlink preemption indicator. The operations of 2015 may be performed according to methods described herein. In some examples, aspects of the operation of 2015 may be performed by a DLPI manager as described with reference to fig. 9-12.

At 2020, the UE may receive the one or more communications according to the rule. The operations of 2020 may be performed in accordance with the methods described herein. In some examples, aspects of the operations of 2020 may be performed by a downlink communications manager as described with reference to fig. 9-12.

Fig. 21 shows a flow diagram illustrating a method 2100 of supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. The operations of the method 2100 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of method 2100 may be performed by a communication manager as described with reference to fig. 13-16. In some examples, a base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

At 2105, the base station may transmit a downlink control message to the UE scheduling transmission of an uplink message by the UE using a set of time and frequency resources. 2105 operations may be performed according to the methods described herein. In some examples, aspects of the operations of 2105 may be performed by a schedule manager as described with reference to fig. 13-16.

At 2110, the base station may transmit an uplink preemption indicator to the UE, where the uplink preemption indicator indicates one or more spatial directions in which transmissions by the UE are preempted during at least a portion of the set of time and frequency resources. 2110 operations may be performed according to the methods described herein. In some examples, aspects of the operations of 2110 may be performed by the ULPI manager as described with reference to fig. 13-16.

At 2115, the base station can monitor for an uplink message during at least the portion of the set of time and frequency resources based on the transmitted uplink preemption indicator. 2115 may be performed according to the methods described herein. In some examples, aspects of the operations of 2115 may be performed by an uplink communications manager as described with reference to fig. 13-16.

Fig. 22 shows a flow diagram illustrating a method 2200 of supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. The operations of the method 2200 may be implemented by the base station 105 or components thereof as described herein. For example, the operations of method 2200 may be performed by a communications manager as described with reference to fig. 13-16. In some examples, a base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

At 2205, the base station may transmit a downlink message to the UE scheduling transmission of positioning reference signals by the UE using a set of time and frequency resources. 2205 may be performed according to the methods described herein. In some examples, aspects of the operations of 2205 may be performed by a schedule manager as described with reference to fig. 13-16.

At 2210, the base station may transmit an uplink preemption indicator to the UE, where the uplink preemption indicator indicates at least a portion of the set of time and frequency resources in which transmissions by the UE are preempted. The operations of 2210 may be performed according to the methods described herein. In some examples, aspects of the operation of 2210 may be performed by a ULPI manager as described with reference to fig. 13-16.

At 2215, the base station may identify a rule regarding the UE applying the uplink preemption indicator to the scheduled positioning reference signal. 2215 may be performed according to the methods described herein. In some examples, aspects of the operation of 2215 may be performed by a ULPI manager as described with reference to fig. 13-16.

At 2220, the base station may monitor the scheduled positioning reference signal based on the rule. 2220 may be performed according to the methods described herein. In some examples, aspects of the operation of 2220 may be performed by an uplink communications manager as described with reference to fig. 13-16.

Fig. 23 shows a flow diagram illustrating a method 2300 of supporting communication preemption applicability techniques in accordance with aspects of the present disclosure. The operations of the method 2300 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of method 2300 may be performed by a communication manager as described with reference to fig. 13-16. In some examples, a base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the functions described below.

At 2305, the base station may transmit a downlink control message to the UE scheduling a set of time and frequency resources for downlink communications including at least one of multimedia broadcast multicast service communications, single cell point-to-multipoint communications, ultra-reliable low latency communications, or downlink traffic having a first priority higher than a second priority of different DL traffic. 2305 may be performed according to the methods described herein. In some examples, aspects of the operations of 2305 may be performed by a schedule manager as described with reference to fig. 13-16.

At 2310, the base station may transmit a downlink preemption indicator to the UE, where the downlink preemption indicator indicates that one or more communications are preempted during at least a portion of the set of time and frequency resources. 2310 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 2310 may be performed by a DLPI manager as described with reference to fig. 13-16.

At 2315, the base station may identify a rule regarding the UE applying the downlink preemption indicator. 2315 may be performed in accordance with the methods described herein. In some examples, aspects of the operation of 2315 may be performed by a DLPI manager as described with reference to fig. 13-16.

At 2320, the base station may monitor the one or more communications based on the rule. 2320 operations may be performed in accordance with the methods described herein. In some examples, aspects of the operations of 2320 may be performed by a downlink communications manager as described with reference to fig. 13-16.

It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more methods may be combined.

The techniques described herein may be used for various wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and others. A CDMA system may implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. The IS-2000 version may often be referred to as CDMA 20001X, 1X, etc. IS-856(TIA-856) IS commonly referred to as CDMA 20001 xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes wideband CDMA (wcdma) and other CDMA variants. TDMA systems may implement radio technologies such as global system for mobile communications (GSM).

The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE)802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE, LTE-A and LTE-A Pro are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, LTE-A Pro, NR, and GSM are described in literature from an organization named "third Generation partnership project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the systems and radio technologies mentioned herein and for other systems and radio technologies. Although aspects of the LTE, LTE-A, LTE-A Pro or NR system may be described for exemplary purposes and LTE, LTE-A, LTE-A Pro or NR terminology may be used in much of the description, the techniques described herein may also be applied to applications other than LTE, LTE-A, LTE-A Pro or NR applications.

A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions with the network provider. A small cell may be associated with a lower power base station (as compared to a macro cell), and the small cell may operate in the same or a different (e.g., licensed, unlicensed, etc.) frequency band than the macro cell. According to various examples, a small cell may include a picocell, a femtocell, and a microcell. A picocell, for example, may cover a small geographic area and may allow unrestricted access by UEs with service subscriptions with the network provider. A femtocell may also cover a smaller geographic area (e.g., a residence) and may provide restricted access by UEs associated with the femtocell (e.g., UEs in a Closed Subscriber Group (CSG), UEs of users in the residence, etc.). The eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, pico eNB, femto eNB, or home eNB. An eNB may support one or more (e.g., two, three, four, etc.) cells and may also support communication using one or more component carriers.

The wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, the base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, each base station may have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operations.

Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

The various illustrative blocks and modules described in connection with the disclosure herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and the following claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hard-wired, or any combination thereof. Features that implement functions may also be physically located at various locations, including being distributed such that portions of functions are implemented at different physical locations.

Computer-readable media includes both non-transitory computer storage media and communication media, including any medium that facilitates transfer of a computer program from one place to another. Non-transitory storage media may be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, a non-transitory computer-readable medium may include Random Access Memory (RAM), Read Only Memory (ROM), electrically erasable programmable ROM (eeprom), flash memory, Compact Disc (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk (disk) and disc (disc), as used herein, includes CD, laser disc, optical disc, Digital Versatile Disc (DVD), floppy disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

As used herein, including in the claims, "or" as used in a list of items (e.g., a list of items accompanied by a phrase such as "at least one of" or "one or more of") indicates an inclusive list, such that, for example, a list of at least one of A, B or C means a or B or C or AB or AC or BC or ABC (i.e., a and B and C). Also, as used herein, the phrase "based on" should not be read as referring to a closed condition set. For example, an exemplary step described as "based on condition a" may be based on both condition a and condition B without departing from the scope of the present disclosure. In other words, the phrase "based on," as used herein, should be interpreted in the same manner as the phrase "based, at least in part, on.

In the drawings, similar components or features may have the same reference numerals. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description may apply to any one of the similar components having the same first reference label irrespective of the second reference label, or other subsequent reference label.

The illustrations set forth herein in connection with the figures describe example configurations and are not intended to represent all examples that may be implemented or fall within the scope of the claims. The term "exemplary" as used herein means "serving as an example, instance, or illustration," and does not mean "preferred" or "advantageous over other examples. The detailed description includes specific details to provide an understanding of the described technology. However, the techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.

The description herein is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.