阅读说明：本技术 用于调度请求和上行链路控制信息的冲突避免 (Collision avoidance for scheduling request and uplink control information ) 是由 S·侯赛尼 A·法拉基达纳 L·魏 陈万士 于 2019-02-05 设计创作，主要内容包括：描述了用于无线通信的方法、系统和设备。用户装备(UE)可标识要在具有第一传输时间区间(TTI)历时的第一上行链路控制信道上传送调度请求(SR)；以及标识确收/否定确收(ACK/NACK)信息被调度用于在具有大于第一TTI历时的第二TTI历时的第二上行链路控制信道上进行传输,其中第一上行链路控制信道和第二上行链路控制信道在时间上交叠。UE可基于交叠的第一上行链路控制信道和第二上行链路控制信道来确定要在第一上行链路控制信道上与SR一起传送ACK/NACK信息；并且可确定第一上行链路控制信道中要用于SR和ACK/NACK信息的传输的资源。UE可在所确定的资源上传送SR和ACK/NACK信息。(Methods, systems, and devices for wireless communication are described. A User Equipment (UE) may identify to transmit a Scheduling Request (SR) on a first uplink control channel having a first Transmission Time Interval (TTI) duration; and identifying that acknowledgement/negative acknowledgement (ACK/NACK) information is scheduled for transmission on a second uplink control channel having a second TTI duration greater than the first TTI duration, wherein the first uplink control channel and the second uplink control channel overlap in time. The UE may determine to transmit ACK/NACK information with the SR on the first uplink control channel based on the overlapping first and second uplink control channels; and may determine resources in the first uplink control channel to be used for transmission of the SR and ACK/NACK information. The UE may transmit the SR and ACK/NACK information on the determined resources.)

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

identifying that a Scheduling Request (SR) is to be transmitted on a first uplink control channel message having a first Transmission Time Interval (TTI) duration;

identifying that acknowledgement/negative acknowledgement (ACK/NACK) information is scheduled for transmission on a second uplink control channel message having a second TTI duration that is greater than the first TTI duration, wherein the first uplink control channel message and the second uplink control channel message overlap in time;

determining to transmit the ACK/NACK information with the SR on the first uplink control channel message based at least in part on the first uplink control channel message overlapping the second uplink control channel message;

determining resources in the first uplink control channel message to be used for transmission of the SR and the ACK/NACK information; and

transmitting the SR and the ACK/NACK information on the determined resources of the first uplink control channel message.

2. The method of claim 1, further comprising:

determining a format of the first uplink control channel message based at least in part on a size of the ACK/NACK information, wherein the format of the first uplink control channel message corresponds to a plurality of resources; and

identifying an SR configuration indicating first resources from the plurality of resources for transmitting the SR and the ACK/NACK information according to the format, wherein the determined resources include the first resources.

3. The method of claim 2, wherein the ACK/NACK information is associated with communications using the second TTI duration.

4. The method of claim 2, wherein determining the format of the first uplink control channel message comprises:

identifying the format based at least in part on the first TTI duration, wherein the first TTI duration comprises one of a time slot or a duration less than the time slot, and wherein the format comprises short physical uplink control channel (sPUCCH) format 3 or sPUCCH format 4.

5. The method of claim 2, wherein identifying the SR configuration comprises:

identifying the SR configuration from a set of configurations for the transmission of the ACK/NACK information, or the SR, or a combination thereof.

6. The method of claim 5, wherein a first configuration from the set of configurations comprises an indication of whether the SR is to be transmitted on the first uplink control channel message or the second uplink control channel message.

7. The method of claim 5, wherein a second configuration from the set of configurations indicates whether to defer transmission of the SR.

8. The method of claim 5, wherein a third configuration from the set of configurations indicates that the second uplink control channel message is to be discarded.

9. The method of claim 5, wherein a fourth configuration from the set of configurations indicates that the second uplink control channel message and the ACK/NACK information are to be discarded.

10. The method of claim 2, wherein the SR configuration is received via Downlink Control Information (DCI), Radio Resource Control (RRC) messaging, or a combination thereof.

11. The method of claim 2, wherein the SR configuration is preconfigured.

12. The method of claim 1, further comprising:

determining that the size of the ACK/NACK information is greater than two bits.

13. The method of claim 1, further comprising:

determining a format of the first uplink control channel message based at least in part on a size of the ACK/NACK information, wherein the format of the first uplink control channel message corresponds to a plurality of resources; and

identifying an SR configuration indicating two or more resources from the plurality of resources to be used for transmitting the SR and the ACK/NACK information according to the format, wherein the determined resource is selected from the two or more resources based on the SR configuration.

14. The method of claim 13, further comprising:

identifying a code rate threshold for resources of the first uplink control channel message, wherein determining the resources of the first uplink control channel message comprises:

determining the resource from the two or more resources based at least in part on the coding rate threshold, the size of the ACK/NACK information, and the number of Cyclic Redundancy Check (CRC) bits.

15. The method of claim 14, further comprising:

selecting a first resource for transmitting the SR and the ACK/NACK information from the two or more resources such that a coding rate of the first resource satisfies the coding rate threshold based on a payload size of the first resource, wherein the first resource is a smallest resource of the two or more resources.

16. The method of claim 14, further comprising:

selecting a first resource for transmitting the SR and the ACK/NACK information from the two or more resources;

determining that the first resource does not satisfy the coding rate threshold based on a payload size of the first resource; and

selecting a second resource from the two or more resources such that a coding rate of the second resource satisfies the coding rate threshold, wherein the second resource is greater than the first resource.

17. The method of claim 16, wherein each of the two or more resources is mapped to a number of Resource Blocks (RBs).

18. The method of claim 16, wherein determining the format of the first uplink control channel message comprises:

identifying the format based at least in part on the first TTI duration, wherein the first TTI duration comprises one of a time slot or a duration less than the time slot, and wherein the format comprises short physical uplink control channel (sPUCCH) format 3 or sPUCCH format 4.

19. The method of claim 1, further comprising:

determining a format of the first uplink control channel message based at least in part on a size of the ACK/NACK information, wherein the format of the first uplink control channel message corresponds to a plurality of resources; and

identifying a most recent instance of the first uplink control channel message having the determined format indicated to the UE, wherein determining the resources in the first uplink control channel message to use for transmission of the SR and the ACK/NACK information is based, at least in part, on the most recent instance, or the determined format, or a combination thereof.

20. The method of claim 19, wherein determining the format of the first uplink control channel message comprises:

identifying a format configuration for the resources based at least in part on the first TTI duration, the first TTI duration comprising a time slot or a duration less than the time slot, and wherein the format comprises short physical uplink control channel (sPUCCH) format 3 or sPUCCH format 4.

21. The method of claim 1, further comprising:

determining a lack of Downlink Control Information (DCI) including an ACK/NACK resource indicator (ARI) for the first uplink control channel message, wherein determining the resources in the first uplink control channel message to use for transmission of the SR and the ACK/NACK information is based on the lack of the DCI.

22. The method of claim 1, further comprising:

receiving an SR configuration indicating that the SR is to be transmitted on the first uplink control channel message.

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

receiving an indication of a plurality of control channel resources in an uplink control channel to be used for uplink control messages;

identifying a coding rate threshold for the uplink control message;

determining a payload size of the uplink control message;

selecting a control channel resource from the plurality of control channel resources based at least in part on the coding rate threshold and the determined payload size of the uplink control message; and

transmitting the uplink control message to the base station using the selected control channel resource.

24. The method of claim 23, wherein selecting the control channel resource comprises:

selecting the control channel resource based at least in part on the coding rate threshold, a size of acknowledgement/negative acknowledgement (ACK/NACK) information within the uplink control message, and a number of Cyclic Redundancy Check (CRC) bits for the uplink control message.

25. The method of claim 23, wherein selecting the control channel resource comprises:

selecting the control channel resource such that a coding rate of the control channel resource satisfies the coding rate threshold, wherein the control channel resource is a smallest resource of the plurality of control channel resources.

26. The method of claim 23, wherein selecting the control channel resource comprises:

selecting the control channel resource from the plurality of control channel resources;

determining that the control channel resources do not satisfy the coding rate threshold based on a payload size of the uplink control message; and

selecting a second control channel resource from the plurality of control channel resources such that a coding rate of the second control channel resource satisfies the coding rate threshold, wherein the second control channel resource is greater than the control channel resource.

27. The method of claim 23, further comprising:

receiving an indication of which of the plurality of control channel resources to use for the uplink control message, wherein the indication is received via an acknowledgement of Downlink Control Information (DCI) (ACK/NACK) resource indicator.

28. The method of claim 23, wherein the format of the uplink control message is short physical uplink control channel (sPUCCH) format 4.

29. A method for wireless communications at a base station, comprising:

configuring a plurality of resources in an uplink control channel for the transmission of an uplink control message based at least in part on a format and a coding rate threshold of the uplink control message, wherein the uplink control message has a first Transmission Time Interval (TTI) duration that is less than a second TTI duration; and

transmitting, to a User Equipment (UE), an indication of the plurality of resources in the uplink control channel to be used for the uplink control message.

30. The method of claim 29, wherein transmitting the indication comprises:

the indication is transmitted via an acknowledgement/negative acknowledgement (ACK/NACK) resource indicator of Downlink Control Information (DCI).

31. The method of claim 29, wherein each of the plurality of resources is mapped to a number of Resource Blocks (RBs).

32. The method of claim 29, wherein the format comprises a short physical uplink control channel (sPUCCH) format 4.

33. An apparatus for wireless communication, comprising:

a processor;

a memory in electronic communication with the processor; and

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

identifying that a Scheduling Request (SR) is to be transmitted on a first uplink control channel message having a first Transmission Time Interval (TTI) duration;

identifying that acknowledgement/negative acknowledgement (ACK/NACK) information is scheduled for transmission on a second uplink control channel message having a second TTI duration that is greater than the first TTI duration, wherein the first uplink control channel message and the second uplink control channel message overlap in time;

determining to transmit the ACK/NACK information with the SR on the first uplink control channel message based at least in part on the first uplink control channel message overlapping the second uplink control channel message;

determining resources in the first uplink control channel message to be used for transmission of the SR and the ACK/NACK information; and

transmitting the SR and the ACK/NACK information on the determined resources of the first uplink control channel message.

34. An apparatus for wireless communication, comprising:

a processor;

a memory in electronic communication with the processor; and

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

receiving an indication of a plurality of control channel resources in an uplink control channel to be used for uplink control messages;

identifying a coding rate threshold for the uplink control message;

determining a payload size of the uplink control message;

selecting a control channel resource from the plurality of control channel resources based at least in part on the coding rate threshold and the determined payload size of the uplink control message; and

transmitting the uplink control message to the base station using the selected control channel resource.

35. An apparatus for wireless communication, comprising:

a processor;

a memory in electronic communication with the processor; and

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

identifying a format of an uplink control channel having a first Transmission Time Interval (TTI) duration less than a second TTI duration;

determining a coding rate threshold for the uplink control message;

configuring a plurality of resources in the uplink control channel for the transmission of the uplink control message based at least in part on the format and the coding rate threshold; and

transmitting, to a User Equipment (UE), an indication of the plurality of resources in the uplink control channel to be used for the uplink control message.

36. An apparatus for wireless communication, comprising:

means for identifying that a Scheduling Request (SR) is to be transmitted on a first uplink control channel message having a first Transmission Time Interval (TTI) duration;

means for identifying that acknowledgement/negative acknowledgement (ACK/NACK) information is scheduled for transmission on a second uplink control channel message having a second TTI duration that is greater than the first TTI duration, wherein the first uplink control channel message and the second uplink control channel message overlap in time;

means for determining to transmit the ACK/NACK information with the SR on the first uplink control channel message based at least in part on the first uplink control channel message overlapping the second uplink control channel message;

means for determining resources in the first uplink control channel message to be used for transmission of the SR and the ACK/NACK information; and

means for transmitting the SR and the ACK/NACK information on the determined resources of the first uplink control channel message.

37. The apparatus of claim 36, further comprising:

means for determining a format of the first uplink control channel message based at least in part on a size of the ACK/NACK information, wherein the format of the first uplink control channel message corresponds to a plurality of resources; and

means for identifying, according to the format, an SR configuration indicating a first resource from the plurality of resources to be used for transmitting the SR and the ACK/NACK information, wherein the determined resource comprises the first resource.

38. The apparatus of claim 37, wherein the means for determining the format of the first uplink control channel message further comprises:

means for identifying the format based at least in part on the first TTI duration, wherein the first TTI duration comprises one of a time slot or a duration less than the time slot, and wherein the format comprises short physical uplink control channel (sPUCCH) format 3 or sPUCCH format 4.

39. The apparatus of claim 37, wherein the means for identifying the SR configuration further comprises:

means for identifying the SR configuration from a set of configurations for the transmission of the ACK/NACK information, or the SR, or a combination thereof.

40. The apparatus of claim 39, wherein a first configuration from the set of configurations comprises an indication of whether the SR is to be transmitted on the first uplink control channel message or the second uplink control channel message.

41. The apparatus of claim 39, wherein a second configuration from the set of configurations indicates whether to defer transmission of the SR.

42. The apparatus of claim 39, wherein a third configuration from the set of configurations indicates that the second uplink control channel message is to be discarded.

43. The apparatus of claim 39, wherein a fourth configuration from the set of configurations indicates that the second uplink control channel message and the ACK/NACK information are to be discarded.

44. The apparatus of claim 37, wherein the SR configuration is received via Downlink Control Information (DCI), Radio Resource Control (RRC) messaging, or a combination thereof.

45. The apparatus of claim 37, wherein the SR configuration is preconfigured.

46. The apparatus of claim 36, further comprising:

means for determining that the size of the ACK/NACK information is greater than two bits.

47. The apparatus of claim 36, further comprising:

means for determining a format of the first uplink control channel message based at least in part on a size of the ACK/NACK information, wherein the format of the first uplink control channel message corresponds to a plurality of resources; and

means for identifying, according to the format, an SR configuration indicating two or more resources from the plurality of resources to be used for transmitting the SR and the ACK/NACK information, wherein the determined resource is selected from the two or more resources based on the SR configuration.

48. The apparatus of claim 47, further comprising:

means for identifying a code rate threshold for resources of the first uplink control channel message, wherein the instructions for determining resources of the first uplink control channel message are executable by the processor to cause the apparatus to:

means for determining the resource from the two or more resources based at least in part on the coding rate threshold, the size of the ACK/NACK information, and the number of Cyclic Redundancy Check (CRC) bits.

49. The apparatus of claim 48, further comprising:

means for selecting a first resource for transmitting the SR and the ACK/NACK information from the two or more resources such that a coding rate of the first resource satisfies the coding rate threshold based on a payload size of the first resource, wherein the first resource is a smallest resource of the two or more resources.

50. The apparatus of claim 48, further comprising:

means for selecting a first resource for transmitting the SR and the ACK/NACK information from the two or more resources;

means for determining that the first resource does not satisfy the coding rate threshold based on a payload size of the first resource; and

means for selecting a second resource from the two or more resources such that a coding rate of the second resource satisfies the coding rate threshold, wherein the second resource is larger than the first resource.

51. The apparatus of claim 47, wherein each of the two or more resources is mapped to a number of Resource Blocks (RBs).

52. The apparatus of claim 47, wherein the means for determining the format of the first uplink control channel message further comprises:

means for identifying the format based at least in part on the first TTI duration, wherein the first TTI duration comprises one of a time slot or a duration less than the time slot, and wherein the format comprises short physical uplink control channel (sPUCCH) format 3 or sPUCCH format 4.

53. The apparatus of claim 36, further comprising:

means for determining a format of the first uplink control channel message based at least in part on a size of the ACK/NACK information, wherein the format of the first uplink control channel message corresponds to a plurality of resources; and

means for identifying a most recent instance of the first uplink control channel message having the determined format indicated to the UE, wherein determining the resources in the first uplink control channel message to use for transmission of the SR and the ACK/NACK information is based, at least in part, on the most recent instance, or the determined format, or a combination thereof.

54. The apparatus of claim 53, wherein the means for determining the format of the first uplink control channel message further comprises:

means for identifying a format configuration for the resources based at least in part on the first TTI duration, the first TTI duration comprising a time slot or a duration less than the time slot, and wherein the format comprises short physical uplink control channel (sPUCCH) format 3 or sPUCCH format 4.

55. The apparatus of claim 36, further comprising:

means for determining a lack of Downlink Control Information (DCI) including an ACK/NACK resource indicator (ARI) for the first uplink control channel message, wherein determining the resources in the first uplink control channel message to use for transmission of the SR and the ACK/NACK information is based on the lack of the DCI.

56. The apparatus of claim 36, further comprising:

means for receiving an SR configuration indicating that the SR is to be transmitted on the first uplink control channel message.

57. An apparatus for wireless communication, comprising:

means for receiving an indication of a plurality of control channel resources in an uplink control channel to be used for uplink control messages;

means for identifying a coding rate threshold for the uplink control message;

means for determining a payload size of the uplink control message;

means for selecting a control channel resource from the plurality of control channel resources based at least in part on the coding rate threshold and the determined payload size of the uplink control message; and

means for transmitting the uplink control message to a base station using the selected control channel resource.

58. The apparatus of claim 57, wherein the means for selecting the control channel resources further comprises:

means for selecting the control channel resources based at least in part on the coding rate threshold, a size of acknowledgement/negative acknowledgement (ACK/NACK) information within the uplink control message, and a number of Cyclic Redundancy Check (CRC) bits for the uplink control message.

59. The apparatus of claim 57, wherein the means for selecting the control channel resources further comprises:

means for selecting the control channel resource such that a coding rate of the control channel resource satisfies the coding rate threshold, wherein the control channel resource is a smallest resource of the plurality of control channel resources.

60. The apparatus of claim 57, wherein the means for selecting the control channel resources further comprises:

means for selecting the control channel resource from the plurality of control channel resources;

means for determining that the control channel resources do not satisfy the coding rate threshold based on a payload size of the uplink control message; and

means for selecting a second control channel resource from the plurality of control channel resources such that a coding rate of the second control channel resource satisfies the coding rate threshold, wherein the second control channel resource is greater than the control channel resource.

61. The apparatus of claim 57, further comprising:

means for receiving an indication of which of the plurality of control channel resources to use for the uplink control message, wherein the indication is received via a Downlink Control Information (DCI) acknowledgement/negative acknowledgement (ACK/NACK) resource indicator.

62. The apparatus of claim 57, wherein the format of the uplink control channel is short physical uplink control channel (sPUCCH) format 4.

63. An apparatus for wireless communication, comprising:

means for configuring a plurality of resources in an uplink control channel for the transmission of an uplink control message based at least in part on a format and a code rate threshold of the uplink control message, wherein the uplink control message has a first Transmission Time Interval (TTI) duration that is less than a second TTI duration; and

means for transmitting, to a User Equipment (UE), an indication of the plurality of resources to be used for the uplink control message in the uplink control channel.

64. The apparatus of claim 63, wherein means for transmitting the indication further comprises:

means for transmitting the indication via an acknowledgement/negative acknowledgement (ACK/NACK) resource indicator of Downlink Control Information (DCI).

65. The apparatus of claim 63, wherein each of the plurality of resources is mapped to a number of Resource Blocks (RBs).