阅读说明：本技术 用于时隙聚集的信令 (Signaling for time slot aggregation ) 是由 J·B·索里亚加 J·孙 陈万士 H·李 P·盖尔 A·马诺拉克斯 杨阳 于 2019-01-24 设计创作，主要内容包括：本公开的某些方面提供了用于新无线电(NR)系统中的时隙聚集的技术.一种由用户装备(UE)进行无线通信的方法包括接收无线电资源控制(RRC)信令,该无线电资源控制(RRC)信令提供用于在多个聚集时隙中的每个聚集时隙中传送或接收重复的传输块(TB)和/或不同的TB的半静态配置。UE基于该半静态配置来在该多个聚集时隙中传送或接收TB。提供了另一种方法,其中UE在多个聚集时隙中的每个聚集时隙中传送和/或接收解调参考信号(DMRS),每个DMRS与该时隙中的重复的TB或不同的TB相关联。UE基于所接收到的信令来确定DMRS是使用相同预编码器还是不同预编码器,并且基于该确定来调制和/或解调该多个聚集时隙中的TB。(A method of wireless communication by a User Equipment (UE) includes receiving Radio Resource Control (RRC) signaling that provides semi-static configuration for transmitting or receiving duplicate Transport Blocks (TBs) and/or different TBs in each of a plurality of aggregated slots. The UE transmits or receives TBs in the plurality of aggregated slots based on the semi-static configuration. Another method is provided in which a UE transmits and/or receives demodulation reference signals (DMRSs) in each of a plurality of aggregated slots, each DMRS being associated with a duplicate TB or a different TB in the slot. The UE determines whether the DMRSs use the same precoder or different precoders based on the received signaling, and modulates and/or demodulates a TB in the plurality of aggregated slots based on the determination.)

1. A method of wireless communication by a User Equipment (UE), comprising:

receiving Radio Resource Control (RRC) signaling providing the UE with a semi-static configuration for transmitting or receiving at least one of a duplicate Transport Block (TB) or a different TB in each of a plurality of aggregated slots; and

transmitting or receiving the TB in the plurality of aggregated slots based on the semi-static configuration.

2. The method of claim 1, further comprising:

receiving a Downlink Control Information (DCI) transmission that schedules the UE to transmit or receive repetitions of TBs associated with the same hybrid automatic repeat request (HARQ) process in the plurality of aggregated slots.

3. The method of claim 2, wherein the repetitions of the TB in the plurality of aggregated slots are associated with a bundled Physical Downlink Shared Channel (PDSCH).

4. The method of claim 1, further comprising:

receiving a Downlink Control Information (DCI) transmission that schedules the UE to transmit or receive different TBs associated with different hybrid automatic repeat request (HARQ) processes in the plurality of aggregated slots.

5. The method of claim 1, further comprising:

receiving or transmitting a single acknowledgement bit indicating whether the TB in the plurality of aggregated slots was successfully received.

6. The method of claim 1, wherein the semi-static configuration comprises at least one of:

a Resource Allocation (RA), a Modulation and Coding Scheme (MCS), a New Data Indicator (NDI), a Redundancy Version (RV), or an Acknowledgement Resource Indicator (ARI) for bundled ACKs associated with transmitting the TB in the plurality of aggregated slots.

7. The method of claim 6, wherein at least one of a same RA, a same MCS, a same NDI, a same RV, or a same ARI is configured for transmitting different TBs in the plurality of aggregated slots.

8. The method of claim 1, further comprising:

receiving Downlink Control Information (DCI) that provides a dynamic configuration for transmitting or receiving the TB in the plurality of aggregated slots, wherein the dynamic configuration is different from the semi-static configuration.

9. The method of claim 1, wherein the signaling comprises separate signaling for uplink slot aggregation and downlink slot aggregation.

10. A method of wireless communication by a User Equipment (UE), comprising:

receiving a demodulation reference signal (DMRS) in each of a plurality of aggregated slots, each DMRS associated with a duplicate Transport Block (TB) or a different TB in the slot;

determining whether the DMRSs use the same precoder or different precoders based on the received signaling; and

demodulating the TB in the plurality of aggregated slots based on the determination.

11. The method of claim 10, wherein the received signaling comprises at least one of: radio Resource Control (RRC) signaling or Downlink Control Information (DCI).

12. The method of claim 11, wherein the received signaling explicitly indicates that the DMRS uses the same precoder.

13. The method of claim 11, wherein the indication implicitly indicates that the DMRSs use the same precoder based on a type of the DCI.

14. The method of claim 11, wherein the received signaling indicates that the UE assumes that the DMRSs use the same precoder, if DMRSs are received in consecutive downlink slots.

15. A method of wireless communication by a User Equipment (UE), comprising:

determining whether demodulation reference signals (DMRS) in a plurality of aggregated slots use the same precoder or different precoders based on the received signaling;

modulating a Transport Block (TB) associated with the DMRS in the plurality of aggregated slots based on the determination; and

transmitting the modulated TB and the associated DMRS in each of the plurality of aggregated slots.

16. The method of claim 15, wherein the received signaling comprises at least one of: radio Resource Control (RRC) signaling or Downlink Control Information (DCI).

17. The method of claim 16, wherein the received signaling explicitly indicates that the DMRS uses the same precoder.

18. The method of claim 16, wherein the indication implicitly indicates that the DMRSs use the same precoder based on a type of the DCI.

19. The method of claim 15, wherein the received signaling indicates that the UE assumes that the DMRSs use the same precoder, if DMRSs are transmitted in consecutive downlink slots.

20. An apparatus for wireless communication, comprising:

means for receiving Radio Resource Control (RRC) signaling providing the apparatus with a semi-static configuration for transmitting or receiving at least one of a duplicate Transport Block (TB) or a different TB in each of a plurality of aggregated slots; and

transmitting or receiving the TB in the plurality of aggregated slots based on the semi-static configuration.

21. The apparatus of claim 20, further comprising: means for receiving a Downlink Control Information (DCI) transmission that schedules the apparatus to transmit or receive repetitions of TBs associated with a same hybrid automatic repeat request (HARQ) process in the plurality of aggregated slots.

22. The apparatus of claim 21, wherein the repetition of the TB in the plurality of aggregated slots is associated with a bundled Physical Downlink Shared Channel (PDSCH).

23. The apparatus of claim 20, further comprising: means for receiving a Downlink Control Information (DCI) transmission that schedules the apparatus to transmit or receive different TBs associated with different hybrid automatic repeat request (HARQ) processes in the plurality of aggregated slots.

24. The apparatus of claim 20, further comprising: means for receiving or transmitting a single acknowledgement bit indicating whether the TB in the plurality of aggregated slots was successfully received.

25. The apparatus of claim 20, wherein the semi-static configuration comprises at least one of: a Resource Allocation (RA), a Modulation and Coding Scheme (MCS), a New Data Indicator (NDI), a Redundancy Version (RV), or an Acknowledgement Resource Indicator (ARI) for bundled ACKs associated with transmitting the TB in the plurality of aggregated slots.

26. The apparatus of claim 25, wherein at least one of a same RA, a same MCS, a same NDI, a same RV, or a same ARI is configured for transmitting different TBs in the plurality of aggregated slots.

27. The apparatus of claim 20, further comprising: means for receiving Downlink Control Information (DCI) that provides a dynamic configuration for transmitting or receiving the TB in the plurality of aggregated slots, wherein the dynamic configuration is different from the semi-static configuration.

Background

FIELD OF THE DISCLOSURE

Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for signaling of timeslot aggregation in certain systems, such as New Radio (NR) systems.