Hybrid automatic repeat/request (HARQ) scheduling

Patent metadata

Field	Value
Publication number	US-10291372-B2
Application number	US-201514808865-A
Country	US
Kind code	B2
Filing date	Jul 24, 2015
Priority date	Nov 3, 2014
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

Various aspects described herein relate to communicating hybrid automatic repeat/request (HARQ) feedback. HARQ feedback related to a HARQ communication over one or more links can be received from a user equipment (UE), wherein the HARQ feedback includes at least one or more interference parameters and/or one or more predicted interference parameters. A rate control loop for each of one or more interference patterns corresponding to each of the one or more links can be maintained based at least in part on the one or more interference parameters. A scheduling grant can be generated for the UE for another instance of the HARQ communication based at least in part on the rate control loop and the one or more predicted interference parameters.

First claim

What is claimed is:

1. A method for communicating hybrid automatic repeat/request (HARQ) feedback, comprising:
receiving, from a user equipment (UE), HARQ feedback related to a HARQ communication over one or more links, wherein the HARQ feedback includes at least one or more interference parameters and one or more predicted interference parameters;
maintaining, for one of the one or more links, multiple rate control loops, wherein each rate control loop corresponds to one of a plurality of interference patterns, and wherein the plurality of interference patterns correspond to the one of the one or more links;
determining, for the one of the one or more links and based on an interference pattern related to the one or more interference parameters, which rate control loop of the multiple rate control loops corresponds to the interference pattern related to the one or more interference parameters;
updating the determined rate control loop based at least in part on the one or more interference parameters; and
generating a scheduling for the UE for another instance of the HARQ communication based at least in part on the determined rate control loop and the one or more predicted interference parameters.

2. The method of claim 1 , wherein updating the determined rate control loop is based at least in part on an indication of the interference pattern, wherein the indication is included in the one or more interference parameters.

3. The method of claim 1 , wherein updating the determined rate control loop is further based at least in part on one or more auxiliary acknowledgement (ACK)/non-acknowledgement (NACK) indicators for the HARQ communication over the one or more links corresponding to the interference pattern.

4. The method of claim 1 , wherein generating the scheduling is based at least in part on determining another interference pattern predicted for a transmission time interval corresponding to the another instance of the HARQ communication based on the one or more predicted interference parameters.

5. The method of claim 4 , wherein generating the scheduling is further based at least in part on determining a signal-to-noise ratio of one or more links based at least in part on one or more rate control loops corresponding to the one or more links and the interference pattern.

6. The method of claim 5 , wherein generating the scheduling is further based at least in part on a target block error rate for the another instance of the HARQ communication.

7. The method of claim 1 , further comprising transmitting the scheduling to the UE in a transmission time interval (TTI) less than one subframe in duration.

8. The method of claim 1 , further comprising communicating a control message to one or more network entities or other UEs to request controlling of communications over resources related to the scheduling.

9. The method of claim 8 , wherein the control message indicates the resources related to the scheduling and relates to requesting controlling of communications by the one or more network entities or other UEs to avoid the resources related to the scheduling.

10. The method of claim 8 , wherein the control message corresponds to configuring coordinated communications among the one or more network entities or other UEs to transmit the another instance of the HARQ communication over the resources related to the scheduling.

11. An apparatus for communicating hybrid automatic repeat/request (HARQ) feedback, comprising:
a memory; and
at least one processor coupled to the memory, wherein the at least one processor is configured to:
receive, from a user equipment (UE), HARQ feedback related to a HARQ communication over one or more links, wherein the HARQ feedback includes at least one or more interference parameters and one or more predicted interference parameters;
maintain, for one of the one or more links, multiple rate control loops, wherein each rate control loop corresponds to one of a plurality of interference patterns, and wherein the plurality of interference patterns correspond to the one of the one or more links;
determine, for the one of the one or more links and based on an interference pattern related to the one or more interference parameters, which rate control loop of the multiple rate control loops corresponds to the interference pattern related to the one or more interference parameters;
update the determined rate control loop based at least in part on the one or more interference parameters; and
generate a scheduling for the UE for another instance of the HARQ communication based at least in part on the determined rate control loop and the one or more predicted interference parameters.

12. The apparatus of claim 11 , wherein the at least one processor is configured to update the determined rate control loop based at least in part on an indication of the interference pattern, wherein the indication is included in the one or more interference parameters.

13. The apparatus of claim 11 , wherein the at least one processor is configured to update the determined rate control loop based at least in part on one or more auxiliary acknowledgement (ACK)/non-acknowledgement (NACK) indicators for the HARQ communication over the one or more links corresponding to the interference pattern.

14. The apparatus of claim 11 , wherein the at least one processor is configured to generate the scheduling based at least in part on determining another interference pattern predicted for a transmission time interval corresponding to the another instance of the HARQ communication based on the one or more predicted interference parameters.

15. The apparatus of claim 14 , wherein the at least one processor is configured to generate the scheduling further based at least in part on determining a signal-to-noise ratio of one or more links based at least in part on one or more rate control loops corresponding to the one or more links and the interference pattern.

16. The apparatus of claim 15 , wherein the at least one processor is configured to generate the scheduling further based at least in part on a target block error rate for the another instance of the HARQ communication.

17. The apparatus of claim 11 , wherein the at least one processor is further configured to transmit the scheduling to the UE in a transmission time interval (TTI) less than one subframe in duration.

18. The apparatus of claim 11 , wherein the at least one processor is further configured to communicate a control message to one or more network entities or other UEs to request controlling of communications over resources related to the scheduling.

19. The apparatus of claim 18 , wherein the control message indicates the resources related to the scheduling and relates to requesting controlling of communications by the one or more network entities or other UEs to avoid the resources related to the scheduling.

20. The apparatus of claim 18 , wherein the control message corresponds to configuring coordinated communications among the one or more network entities or other UEs to transmit the another instance of the HARQ communication over the resources related to the scheduling.

21. An apparatus for communicating hybrid automatic repeat/request (HARQ) feedback, comprising:
means for receiving, from a user equipment (UE), HARQ feedback related to a HARQ communication over one or more links, wherein the HARQ feedback includes at least one or more interference parameters and one or more predicted interference parameters;
means for maintaining, for one o

Assignees

• Qualcomm Inc

Inventors

• Azarian Yazdi Kambiz
• Ji Tingfang
• Jiang Jing
• Ang Peter Pui Lok
• Soriaga Joseph Binamira
• Mukkavilli Krishna Kiran
• Bhushan Naga
• Smee John Edward

Classifications

• H04W72/541

  using the level of interference · CPC title

• H04L5/0007

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title

• H04L1/1854

  Scheduling and prioritising arrangements · CPC title

• H04L1/1861

  Physical mapping arrangements (for ACK signaling see also H04L5/0053) · CPC title

• H04L1/1825

  Adaptation of specific ARQ protocol parameters according to transmission conditions · CPC title