阅读说明：本技术 用于可变长度上行链路控制信道的可配置的时隙内跳频 (Configurable intra-slot hopping for variable length uplink control channels ) 是由 黄轶 R·王 徐浩 S·朴 于 2018-05-04 设计创作，主要内容包括：可变长度上行链路控制信道的历时可以在宽范围上变化。对于可变长度上行链路控制信道的较短历时,涉及开销的传输可占用较大百分比的码元。禁用时隙内跳频可有益于减少开销(作为百分比)。该装置可以是用于无线通信的装置。该装置可以包括发射机或接收机和处理系统。处理系统可被配置成确定是否要对可变长度上行链路控制信道使用时隙内跳频,以及将信息传达到发射机以供可变长度上行链路控制信道上的传输或者从接收机接收信息。该信息可在可变长度上行链路控制信道上接收,由发射机传送的或者由接收机接收的信息基于是否要使用时隙内跳频的确定。(The duration of the variable length uplink control channel may vary over a wide range. For shorter durations of the variable length uplink control channel, overhead related transmissions may occupy a larger percentage of symbols. Disabling intra-slot frequency hopping may be beneficial to reduce overhead (as a percentage). The apparatus may be an apparatus for wireless communication. The apparatus may include a transmitter or receiver and a processing system. The processing system may be configured to determine whether to use intra-slot frequency hopping for the variable length uplink control channel and to communicate information to the transmitter for transmission on the variable length uplink control channel or to receive information from the receiver. The information may be received on a variable length uplink control channel, the information transmitted by the transmitter or received by the receiver based on a determination of whether to use intra-slot hopping.)

1. An apparatus for wireless communication, comprising:

A transmitter; and

A processing system configured to:

Determining whether intra-slot frequency hopping is to be used for a variable length uplink control channel, and

Communicating information to the transmitter for transmission on the variable length uplink control channel, the information transmitted by the transmitter being based on the determination of whether intra-slot frequency hopping is to be used.

2. The apparatus of claim 1, wherein the variable length uplink control channel comprises a long Physical Uplink Control Channel (PUCCH).

3. The apparatus of claim 1, wherein the variable length uplink control channel comprises a short Physical Uplink Control Channel (PUCCH).

4. The apparatus of claim 1, wherein the transmitter is configured to: transmitting the information using a single frequency or intra-slot frequency hopping in a slot on the variable length uplink control channel based on the determination of whether intra-slot frequency hopping is to be used.

5. The apparatus of claim 4, wherein determining whether to use intra-slot hopping comprises: determining whether to use intra-slot frequency hopping to transmit data on the variable length uplink control channel based on a duration of the variable length uplink control channel.

6. The apparatus of claim 5, wherein a variable length uplink control channel duration using frequency hopping within a time slot and the variable length uplink control channel duration not using frequency hopping within a time slot are predetermined.

7. The apparatus of claim 4, wherein the determination of whether to use intra-slot frequency hopping for the variable length uplink control channel is based on received signaling to enable or disable the variable length uplink control channel frequency hopping.

8. The apparatus of claim 7, wherein the signaling comprises Radio Resource Control (RRC) signaling for enabling or disabling the variable length uplink control channel frequency hopping or the signaling comprises Downlink Control Information (DCI) signaling for enabling or disabling the variable length uplink control channel frequency hopping.

9. The apparatus of claim 1, further comprising: changing a state of inter-slot frequency hopping using one of received Radio Resource Control (RRC) signaling or received Downlink Control Information (DCI) signaling.

10. An apparatus for wireless communication, comprising:

A receiver configured to receive information on a variable length uplink control channel; and

A processing system configured to:

Determining whether intra-slot frequency hopping is to be used for the variable length uplink control channel, and

receiving the information from the receiver based on the determination of whether to use intra-slot frequency hopping.

11. The apparatus of claim 10, wherein the variable length uplink control channel comprises a long Physical Uplink Control Channel (PUCCH).

12. The apparatus of claim 10, wherein the variable length uplink control channel comprises a short Physical Uplink Control Channel (PUCCH).

13. The apparatus of claim 10, wherein the receiver is configured to: receiving the information using a single frequency or intra-slot hopping in a slot on the variable length uplink control channel based on the determination of whether intra-slot hopping is to be used.

14. The apparatus of claim 13, wherein determining whether to use intra-slot hopping comprises: determining whether to use intra-slot frequency hopping to receive data on the variable length uplink control channel based on a duration of the variable length uplink control channel.

15. The apparatus of claim 14, wherein a variable length uplink control channel duration using frequency hopping within a time slot and the variable length uplink control channel duration not using frequency hopping within a time slot are predetermined.

16. The apparatus of claim 14, further comprising: signaling to a User Equipment (UE) to enable or disable the variable length uplink control channel hopping.

17. The apparatus of claim 16, wherein the signaling comprises Radio Resource Control (RRC) signaling for enabling or disabling the variable length uplink control channel frequency hopping or the signaling comprises Downlink Control Information (DCI) signaling for enabling or disabling the variable length uplink control channel frequency hopping.

18. The apparatus of claim 14, further comprising: the state of inter-slot frequency hopping is changed using one of Radio Resource Control (RRC) or Downlink Control Information (DCI) signaling.

19. A method of wireless communication, comprising:

Determining whether intra-slot frequency hopping is to be used for a variable length uplink control channel, and

Communicating information to a transmitter for transmission on the variable length uplink control channel, the information transmitted by the transmitter being based on the determination of whether to use intra-slot frequency hopping.

20. The method of claim 19, wherein the variable length uplink control channel comprises a long Physical Uplink Control Channel (PUCCH).

21. The method of claim 19, wherein the variable length uplink control channel comprises a short Physical Uplink Control Channel (PUCCH).

22. The method of claim 19, wherein the transmitter is configured to: transmitting the information using a single frequency or intra-slot frequency hopping in a slot on the variable length uplink control channel based on the determination of whether intra-slot frequency hopping is to be used.

23. the method of claim 22, wherein determining whether to use intra-slot hopping comprises: determining whether to use intra-slot frequency hopping to transmit data on the variable length uplink control channel based on a duration of the variable length uplink control channel.

24. The method of claim 23, wherein a variable length uplink control channel duration using frequency hopping within a time slot and the variable length uplink control channel duration not using frequency hopping within a time slot are predetermined.

25. The method of claim 22, wherein determining whether to use intra-slot frequency hopping for the variable length uplink control channel is based on received signaling to enable or disable the variable length uplink control channel frequency hopping.

26. The method of claim 25, wherein the signaling comprises at least one of Radio Resource Control (RRC) signaling to enable or disable the variable length uplink control channel frequency hopping or Downlink Control Information (DCI) signaling to enable or disable the variable length uplink control channel frequency hopping.

27. The method of claim 19, further comprising: changing a state of inter-slot frequency hopping using one of received Radio Resource Control (RRC) signaling or received Downlink Control Information (DCI) signaling.

28. A method of wireless communication, comprising:

Determining whether intra-slot frequency hopping is to be used for a variable length uplink control channel, and

Receiving information on the variable length uplink control channel based on the determination of whether to use intra-slot frequency hopping.

29. the method of claim 28, wherein the variable length uplink control channel comprises a long Physical Uplink Control Channel (PUCCH).

30. The method of claim 28, wherein the variable length uplink control channel comprises a short Physical Uplink Control Channel (PUCCH).

31. The method of claim 28, wherein the receiver is configured to: receiving the information using a single frequency or intra-slot hopping in a slot on the variable length uplink control channel based on the determination of whether intra-slot hopping is to be used.

32. The method of claim 31, wherein determining whether to use intra-slot hopping comprises: determining whether to use intra-slot frequency hopping to receive data on the variable length uplink control channel based on a duration of the variable length uplink control channel.

33. The method of claim 32, wherein a variable length uplink control channel duration using frequency hopping within a time slot and the variable length uplink control channel duration not using frequency hopping within a time slot are predetermined.

34. The method of claim 32, further comprising: signaling to a User Equipment (UE) to enable or disable the variable length uplink control channel hopping.

35. The method of claim 34, wherein the signaling comprises at least one of Radio Resource Control (RRC) signaling to enable or disable the variable length uplink control channel frequency hopping or Downlink Control Information (DCI) signaling to enable or disable the variable length uplink control channel frequency hopping.

36. The method of claim 28, further comprising: the state of inter-slot frequency hopping is changed using one of Radio Resource Control (RRC) or Downlink Control Information (DCI) signaling.

37. An apparatus for wireless communication, comprising:

means for determining whether to use intra-slot frequency hopping for variable length uplink control channels, an

Means for communicating information to a transmitter for transmission on the variable length uplink control channel, the information transmitted by the transmitter based on the determination of whether intra-slot frequency hopping is to be used.

38. The apparatus of claim 37, wherein the variable length uplink control channel comprises a long Physical Uplink Control Channel (PUCCH).

39. The apparatus of claim 37, wherein the variable length uplink control channel comprises a short Physical Uplink Control Channel (PUCCH).

40. The apparatus of claim 37, wherein the transmitter is configured to: transmitting the information using a single frequency or intra-slot frequency hopping in a slot on the variable length uplink control channel based on the determination of whether intra-slot frequency hopping is to be used.

41. The apparatus of claim 40, wherein determining whether to use intra-slot frequency hopping comprises: determining whether to use intra-slot frequency hopping to transmit data on the variable length uplink control channel based on a duration of the variable length uplink control channel.

42. The apparatus of claim 41, wherein a variable length uplink control channel duration using frequency hopping within a time slot and the variable length uplink control channel duration not using frequency hopping within a time slot are predetermined.

43. The apparatus of claim 40, wherein determining whether to use intra-slot frequency hopping for the variable length uplink control channel is based on received signaling to enable or disable the variable length uplink control channel frequency hopping.

44. The apparatus of claim 43, wherein the signaling comprises Radio Resource Control (RRC) signaling for enabling or disabling the variable length uplink control channel frequency hopping or the signaling comprises Downlink Control Information (DCI) signaling for enabling or disabling the variable length uplink control channel frequency hopping.

45. The apparatus of claim 37, further comprising: changing a state of inter-slot frequency hopping using one of received Radio Resource Control (RRC) signaling or received Downlink Control Information (DCI) signaling.

46. An apparatus for wireless communication, comprising:

Means for determining whether to use intra-slot frequency hopping for variable length uplink control channels, an

Means for receiving information on the variable length uplink control channel based on the determination of whether intra-slot frequency hopping is to be used.

47. The apparatus of claim 46, wherein the variable length uplink control channel comprises a long Physical Uplink Control Channel (PUCCH).

48. The apparatus of claim 46, wherein the variable length uplink control channel comprises a short Physical Uplink Control Channel (PUCCH).

49. The apparatus of claim 46, wherein the receiver is configured to: receiving the information using a single frequency or intra-slot hopping in a slot on the variable length uplink control channel based on the determination of whether intra-slot hopping is to be used.

50. The apparatus of claim 49, wherein determining whether intra-slot frequency hopping is to be used comprises: determining whether to use intra-slot frequency hopping to receive data on the variable length uplink control channel based on a duration of the variable length uplink control channel.

51. The apparatus of claim 50, wherein a variable length uplink control channel duration using frequency hopping within a time slot and the variable length uplink control channel duration not using frequency hopping within a time slot are predetermined.

52. The apparatus of claim 50, further comprising: signaling to a User Equipment (UE) to enable or disable the variable length uplink control channel hopping.

53. The apparatus of claim 52, wherein the signaling comprises Radio Resource Control (RRC) signaling for enabling or disabling the variable length uplink control channel frequency hopping or the signaling comprises Downlink Control Information (DCI) signaling for enabling or disabling the variable length uplink control channel frequency hopping.

54. The apparatus of claim 50, further comprising: means for changing a state of inter-slot frequency hopping using one of Radio Resource Control (RRC) or Downlink Control Information (DCI) signaling.

Technical Field

The present disclosure relates generally to communication systems, and more particularly to uplink control channels in communication systems.

Introduction to the design reside in

Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple-access techniques capable of supporting communication with multiple users by sharing the available system resources. Examples of such multiple-access techniques include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.

these multiple access techniques have been adopted in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate on a city, country, region, and even global level. An example telecommunication standard is the 5G New Radio (NR). The 5G NR is part of mobile broadband evolution promulgated by the third generation partnership project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the internet of things (IoT)), and other requirements. Some aspects of the 5G NR may be based on the 4G Long Term Evolution (LTE) standard. There is a need for further improvements in the 5G NR technology. Such improvements may also be applicable to other multiple access techniques and telecommunications standards employing such techniques.

The 5G NR may include a short Physical Uplink Control Channel (PUCCH) and a long PUCCH. In some aspects, the duration of the long PUCCH (e.g., by the number of symbols) may vary over a wide range. The demodulation reference signal (DMRS) overhead may occupy a larger percentage of symbols for a shorter duration of the long PUCCH than a longer duration of the long PUCCH. Accordingly, disabling intra-slot frequency hopping may be beneficial to reduce DMRS overhead, especially for the shorter duration of the long PUCCH.

SUMMARY

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

The length of a variable length uplink control channel, such as PUCCH, may vary over a wide range, e.g., the variable length uplink control channel may have a variable number of symbols. The overhead may use several symbols (e.g., 2 symbols) for each variable length uplink control channel. Accordingly, a variable length uplink control channel having 4 symbols may have only 2 symbols (e.g., 50% of the symbols) available for data, and a long PUCCH having 14 symbols may have 12 symbols (e.g., about 86%) available for data. Accordingly, disabling intra-slot frequency hopping may be beneficial to reduce overhead, especially for shorter variable length uplink control channels. For shorter variable length uplink control channels, the benefit of frequency hopping within a slot may not outweigh the overhead cost, which may result in a low percentage of symbols available for data. Conversely, longer variable length uplink control channels with a higher percentage of symbols available for data may use intra-slot frequency hopping, for example, to increase the reliability of PUCCH transmission.

For example, as discussed above, the 5G NR includes a short-duration PUCCH and a long-duration PUCCH. In some aspects, the duration of the long PUCCH (e.g., measured in number of symbols) may vary over a wide range. For example, the duration of the long PUCCH by the number of symbols may be: 4 symbols, 5 symbols, 6 symbols, 7 symbols, 8 symbols, 9 symbols, 10 symbols, 11 symbols, 12 symbols, 13 symbols, 14 symbols, or some other number of symbols. For example, the DMRS overhead may occupy a larger percentage of symbols for a shorter duration of the long PUCCH than a longer duration of the long PUCCH. For example, DMRS overhead may use 2 symbols per long PUCCH. Accordingly, a long PUCCH with 4 symbols may have only 2 symbols (e.g., 50% of the symbols) available for data intended for transmission on the PUCCH, while a long PUCCH with 14 symbols may have 12 symbols (e.g., about 86%) available for data intended for transmission on the PUCCH. Disabling frequency hopping within a slot may be beneficial to reduce DMRS overhead (as a percentage of the number of symbols).

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be an apparatus for wireless communication. The apparatus may include a transmitter and a processing system. The processing system may be configured to: the method includes determining whether intra-slot frequency hopping is to be used for a variable length uplink control channel, and communicating information to a transmitter for transmission on the variable length uplink control channel, the information transmitted by the transmitter based on the determination of whether intra-slot frequency hopping is to be used.

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be an apparatus for wireless communication. The apparatus may include a receiver configured to receive information on a variable length uplink control channel; and a processing system. The processing system may be configured to determine whether intra-slot frequency hopping is to be used for the variable length uplink control channel, and receive information from the receiver based on the determination of whether intra-slot frequency hopping is to be used.

To the accomplishment of the foregoing and related ends, the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed and the present description is intended to include all such aspects and their equivalents.