IP Library › Granted Patent US 11,728,937
Granted Patent B2
US 11,728,937 · App. 16/948,599 · Granted Aug 15, 2023

HARQ process identifier determination

Inventors: Vinay Joseph (Calicut, IN); Rajat Prakash (San Diego, CA); Seyed Ali Akbar Fakoorian (San Diego, CA); Linhai He (San Diego, CA); Seyedkianoush Hosseini (San Diego, CA); Umesh Phuyal (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04L1/1819H04W72/0446H04W72/23H04W72/535H04W76/27
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Quick Facts
Patent No.
US 11,728,937
App. No.
16/948,599
Granted
Aug 15, 2023
Kind
B2
Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a hybrid automatic repeat request (HARQ) process identifier for a communication between the UE and a base station using a semi-persistent scheduling (SPS) configuration or a configured grant (CG) configuration, wherein the determination of the HARQ process identifier is based at least in part on an offset applied for the determination of the HARQ process identifier; and perform the communication based at least in part on the HARQ process identifier. Numerous other aspects are provided.

Claims (46)

1. A method of wireless communication performed by a user equipment (UE), comprising:

selecting a hybrid automatic repeat request (HARQ) process identifier for a communication between the UE and a base station using a configured grant (CG) configuration, the selection of the HARQ process identifier associated at least in part with an offset applied to the HARQ process identifier, a number of consecutive slots per frame, a number of consecutive symbols per slot, a quantity of HARQ processes configured for the UE, and a periodicity associated with the CG configuration; and

performing the communication in accordance with the HARQ process identifier.

2. The method of claim 1 , wherein the offset prevents a repetition or an incomplete cycle associated with a system frame number wraparound value.

3. The method of claim 1 , wherein the offset is a first offset, and wherein the HARQ process identifier is selected in accordance with a second offset for another communication for a semi-persistent scheduling (SPS) configuration.

4. The method of claim 3 , wherein the first offset is associated with a first set of system frame numbers and the second offset is associated with a second set of system frame numbers.

5. The method of claim 1 , wherein the offset is configured using radio resource control signaling or an activation downlink control information.

6. A method of wireless communication performed by a base station, comprising:

selecting a hybrid automatic repeat request (HARQ) process identifier for a communication between the base station and a user equipment (UE) using a configured grant (CG) configuration, the selection of the HARQ process identifier associated at least in part with an offset applied to the HARQ process identifier, a number of consecutive slots per frame, a number of consecutive symbols per slot, a quantity of HARQ processes configured for the UE, and a periodicity associated with the CG configuration; and

performing the communication in accordance with the HARQ process identifier.

7. The method of claim 6 , wherein the offset prevents a repetition or an incomplete cycle associated with a system frame number wraparound value.

8. The method of claim 6 , wherein the offset is a first offset, and wherein selecting the HARQ process identifier is according to a second offset in accordance with another communication for an semi-persistent scheduling (SPS) configuration.

9. The method of claim 8 , wherein the first offset is associated with a first set of system frame numbers and the second offset is associated with a second set of system frame numbers.

10. The method of claim 6 , wherein the offset is configured using radio resource control (RRC) signaling or an activation downlink control information (DCI).

11. The method of claim 6 , wherein the offset comprises a first value for a set of system frame numbers before a system frame number wraparound value, and a second value for the set of system frame numbers after the system frame number wraparound value.

12. The method of claim 6 , wherein the offset comprises respective values for a plurality of sets of system frame numbers, wherein each set of system frame numbers, of the plurality of sets of system frame numbers, comprises system frame numbers 0 through N, where N is a system frame number wraparound value.

13. A user equipment (UE) for wireless communication, comprising:

a memory; and

one or more processors coupled to the memory, the one or more processors configured to:

select a hybrid automatic repeat request (HARQ) process identifier for a communication between the UE and a base station using a configured grant (CG) configuration, the selection of the HARQ process identifier associated at least in part with an offset applied to the HARQ process identifier, a number of consecutive slots per frame, a number of consecutive symbols per slot, a quantity of HARQ processes configured for the UE, and a periodicity associated with the CG configuration; and

perform the communication in accordance with the HARQ process identifier.

14. The UE of claim 13 , wherein the offset prevents a repetition or an incomplete cycle associated with a system frame number wraparound value.

15. The UE of claim 13 , wherein the offset is a first offset, and wherein the HARQ process identifier is selected according to a second offset for another communication for a semi-persistent scheduling (SPS) configuration.

16. The UE of claim 15 , wherein the first offset is associated with a first set of system frame numbers and the second offset is associated with a second set of system frame numbers.

17. The UE of claim 13 , wherein the offset is configured using radio resource control signaling or an activation downlink control information.

18. A base station for wireless communication, comprising:

a memory; and

one or more processors coupled to the memory, the one or more processors configured to:

select a hybrid automatic repeat request (HARQ) process identifier for a communication between the base station and a user equipment (UE) using a configured grant (CG) configuration, the selection of the HARQ process identifier associated at least in part with an offset applied to the HARQ process identifier, a number of consecutive slots per frame, a number of consecutive symbols per slot, a quantity of HARQ processes configured for the UE, and a periodicity associated with the CG configuration; and

perform the communication in accordance with the HARQ process identifier.

19. The base station of claim 18 , wherein the offset prevents a repetition or an incomplete cycle associated with a system frame number wraparound value.

20. The base station of claim 18 , wherein the offset is a first offset, and wherein the HARQ process identifier is selected according to a second offset in accordance with another communication for a semi-persistent scheduling (SPS) configuration.

21. The base station of claim 20 , wherein the first offset is associated with a first set of system frame numbers and the second offset is associated with a second set of system frame numbers.

22. The base station of claim 18 , wherein the offset is configured using radio resource control (RRC) signaling or an activation downlink control information (DCI).

23. The base station of claim 18 , wherein the offset is selected by the base station.

24. The base station of claim 18 , wherein the offset comprises a first value for a set of system frame numbers before a system frame number wraparound value, and a second value for the set of system frame numbers after the system frame number wraparound value.

25. The base station of claim 18 , wherein the offset comprises respective values for a plurality of sets of system frame numbers, wherein each set of system frame numbers, of the plurality of sets of system frame numbers, comprises system frame numbers 0 through N, where N is a system frame number wraparound value.

26. The method of claim 1 , wherein the offset is applied to the HARQ process identifier in accordance with:

[floor(CURRENT_symbol/periodicity)] modulo nrofHARQ-Processes+offsetforCG_j,

CURRENT_symbol=(SFN×numberOfSlotsPerFrame×numberOfSymbolsPerSlot+a slot number in a frame associated with the communication×numberOfSymbolsPerSlot+a symbol number in a slot of the frame),

periodicity corresponding to a periodicity associated with the CG configuration,

nrofHARQ-Processes corresponding to a quantity of HARQ processes that are configured for the UE,

offsetforCG_j corresponds to the offset applied to the HARQ process identifier,

SFN corresponds to a system frame number associated with the slot,

numberOfSlotsPerFrame corresponds to a quantity of consecutive slots per frame, and

numberOfSymbolsPerSlot corresponds to a quantity of consecutive symbols per slot.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 21, 2021
From: JOSEPH, VINAY; PRAKASH, RAJAT; FAKOORIAN, SEYED ALI AKBAR; HE, LINHAI; HOSSEINI, SEYEDKIANOUSH; PHUYAL, UMESH
To: QUALCOMM INCORPORATED
Reel/Frame 055992/0418 →
Continuity (2)
Provisional Application 62906631 · Sep 26, 2019
Related Publication 20210099257A1 · Apr 1, 2021