Method and apparatus of handling inter-device coordination for sidelink communication in a wireless communication system

Patent metadata

Field	Value
Publication number	US-12317231-B2
Application number	US-202117475012-A
Country	US
Kind code	B2
Filing date	Sep 14, 2021
Priority date	Sep 17, 2020
Publication date	May 27, 2025
Grant date	May 27, 2025

Abstract

A method and apparatus are disclosed from the perspective of a first device to perform sidelink communication. In one embodiment, the first device sends or reports a resource set to a second device, wherein the resource set comprises one or more sidelink resources in one or more slots in a carrier or cell. Furthermore, when the first device performs sidelink resource (re-)selection procedure for selecting a first sidelink resource in the carrier or cell, the first device prevents or precludes from selecting or determining (any) sidelink resources in the one or more slot in the carrier or cell for selecting the first sidelink resource.

First claim

The invention claimed is:

1. A method of a first device to perform sidelink transmission, comprising:
sending or reporting a resource set to a second device, wherein the resource set comprises one or more sidelink resources in one or more slots in a same carrier or cell;
performing a sidelink resource selection procedure for selecting a first sidelink resource for sidelink transmission in the same carrier or cell after sending or reporting the resource set comprising the one or more sidelink resources in the one or more slots in the same carrier or cell, wherein the first sidelink resource is utilized for transmitting or delivering a first data packet associated with a first priority in the same carrier or cell; and
when the first priority is lower than a second priority associated with the one or more sidelink resources in the one or more slots in the same carrier or cell, preventing or precluding from selecting or determining sidelink resources in the one or more slots associated with the sent or reported resource set in the same carrier or cell for selecting the first sidelink resource.

2. The method of claim 1 , wherein the first device excludes candidate sidelink resources in the one or more slots for selecting the first sidelink resource.

3. The method of claim 1 , wherein the one or more sidelink resources is preferred for a transmission by the second device to at least the first device.

4. The method of claim 1 , wherein at least one of:
the first device performs the sidelink resource selection procedure for selecting the first sidelink resource after the first device sends or reports the resource set to the second device,
the first device performs the sidelink resource selection procedure for selecting the first sidelink resource within a time duration associated with the sending or reporting of the resource set, or
the first device performs the sidelink resource selection procedure for selecting the first sidelink resource within a time duration associated with a timing of the sending or reporting of the resource set.

5. The method of claim 1 , wherein:
the sidelink transmission is Physical Sidelink Shared Channel (PSSCH) transmission.

6. The method of claim 5 , wherein:
when the first priority is higher than the second priority, the first device performs the sidelink resource selection procedure for selecting the first sidelink resource without the prevention or preclusion.

7. The method of claim 6 , wherein:
the second priority is associated with the one or more sidelink resources or associated with the resource set.

8. The method of claim 5 , wherein at least one of:
when the first data packet comprises sidelink data from specific logical channels or associated with specific service requirement, the first device performs the sidelink resource selection procedure for selecting the first sidelink resource without the exclusion or prevention or preclusion, or
when the first data packet does not comprise sidelink data from specific logical channels or associated with specific service requirement, the first device performs the sidelink resource selection procedure for selecting the first sidelink resource with the exclusion or prevention or preclusion.

9. The method of claim 1 , wherein the first sidelink resource is in the same sidelink resource pool as the one or more sidelink resources, or the first sidelink resource is in a different sidelink resource pool from the one or more sidelink resources.

10. A method of a first device to perform sidelink transmission or reception, comprising:
sending or reporting a resource set to a second device, wherein the resource set comprises one or more sidelink resources in one or more slots in a same carrier or cell;
scheduling or reserving a third sidelink resource to transmit or deliver a third data packet associated with a third priority, wherein the third sidelink resource is in the one or more slots associated with the sent or reported resource set in the same carrier or cell;
when the third priority is lower than a second priority or a specific priority, performing sidelink reception or monitoring in a slot of the third sidelink resource; and
when the third priority is higher than the second priority or the specific priority, performing sidelink transmission on the third sidelink resource.

11. The method of claim 10 , wherein the one or more sidelink resources is preferred for a transmission by the second device to at least the first device.

12. The method of claim 10 , wherein at least one of:
the second priority is associated with at least one of the one or more sidelink resources or the resource set, or
the specific priority is configured, pre-configured, specified or derived based on the second priority.

13. The method of claim 10 , comprising at least one of:
receiving a sidelink grant from network node, wherein the sidelink grant schedules or indicates at least the third sidelink resource,
receiving at least one of a third sidelink control information or a sidelink grant, from a third device, which reserves or indicates at least the third sidelink resource, or
receiving another resource set from a fourth device, wherein the another resource set at least one of reserves or comprises at least the third sidelink resource.

14. The method of claim 10 , wherein the first device acquires information of the third sidelink resource after the first device sends or reports the resource set to the second device.

15. The method of claim 10 , wherein the third sidelink resource is in the same sidelink resource pool as the one or more sidelink resources, or the third sidelink resource is in a different sidelink resource pool from the one or more sidelink resources.

16. A first device to perform sidelink transmission, comprising:
a control circuit;
a processor installed in the control circuit; and
a memory installed in the control circuit and operatively coupled to the processor;
wherein the processor is configured to execute a program code stored in the memory to:
send or report a resource set to a second device, wherein the resource set comprises one or more sidelink resources in one or more slots in a same carrier or cell;
perform a sidelink resource selection procedure for selecting a first sidelink resource for sidelink transmission in the same carrier or cell after sending or reporting the resource set comprising the one or more sidelink resources in the one or more slots in the same carrier or cell, wherein the first sidelink resource is utilized for transmitting or delivering a first data packet associated with a first priority in the same carrier or cell; and
when the first priority is lower than a second priority associated with the one or more sidelink resources in the one or more slots in the same carrier or cell, prevent or preclude from selecting or determining sidelink resources in the one or more slots associated with the sent or reported resource set in the same carrier or cell for selecting the first sidelink resource.

17. The first device of claim 16 , wherein the first device excludes candidate sidelink resources in the one or more slots for selecting the first sidelink resource.

18. The first device of claim 16 , wherein the one or more sidelink resources is preferred for a transmission by the second device to at least the first device.

19. The first device of claim 16 , wherein the processor is further configured to execute a program code stored in the memory to at least one of:
perform the sidelink resource selection procedure for selec

Assignees

• Asustek Comp Inc

Inventors

• Li Ming-Che
• Huang Chun-Wei

Classifications

• H04W72/56

  based on priority criteria · CPC title

• H04W72/20 Primary

  Control channels or signalling for resource management · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W28/26

  Resource reservation · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title