Method and apparatus for supporting one-to-one sidelink communication in a wireless communication system

Patent metadata

Field	Value
Publication number	US-11357064-B2
Application number	US-201916703265-A
Country	US
Kind code	B2
Filing date	Dec 4, 2019
Priority date	Dec 24, 2018
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

A method and apparatus are disclosed from the perspective of an initiating UE (User Equipment) for establishing a one-to-one sidelink communication with a target UE. In one embodiment, the method includes transmitting a first PC5 signalling used for establishing the one-to-one sidelink communication, wherein the first PC5 signalling includes an identity of the target UE and an identity of a V2X (Vehicle-to-Everything) service.

First claim

The invention claimed is:

1. A method for an initiating UE (User Equipment) to establish a unicast link with a target UE, comprising:
transmitting a first PC5 signalling, to a broadcast address associated with a V2X (Vehicle-to-Everything) service or a V2X application offering the V2X service, using a source layer 2 identity that is set to a layer 2 identity of the initiating UE, wherein the first PC5 signalling is used for establishing the unicast link with the target UE and wherein the first PC5 signalling includes an application layer identity of the target UE and an identity of the V2X service; and
receiving a second PC5 signalling from the target UE, wherein the second PC5 signalling is used to complete establishment of the unicast link with the target UE; and
transmitting one or more V2X messages to the target UE via the unicast link established in association with the first PC5 signalling and the second PC5 signalling.

2. The method of claim 1 , wherein the initiating UE is aware of the presence of the target UE via a discovery procedure or a one-to-many sidelink communication.

3. The method of claim 1 , wherein the first PC5 signalling includes an identity of the V2X application offering the V2X service.

4. The method of claim 1 , wherein the first PC5 signalling includes an application layer identity of the initiating UE.

5. The method of claim 1 , wherein the first PC5 signalling includes requested PC5 5QI, QoS (Quality of Service) parameter(s) or QoS profile(s) of a PC5 QoS flow for the V2X application offering the V2X service or the V2X service.

6. The method of claim 1 , wherein the second PC5 signalling includes accepted PC5 5QI for the V2X application offering the V2X service or the V2X service.

7. The method of claim 1 , wherein the first PC5 signalling is a Direct Communication Request message.

8. The method of claim 1 , wherein the second PC5 signalling includes QoS (Quality of Service) parameter(s) for the V2X application offering the V2X service or the V2X service.

9. The method of claim 1 , wherein the second PC5 signalling includes QoS (Quality of Service) profile(s) of a PC5 QoS flow for the V2X application offering the V2X service or the V2X service.

10. The method of claim 1 , wherein the second PC5 signalling is a Direct Communication Accept message.

11. An initiating communication device, 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:
transmit a first PC5 signalling, to a broadcast address associated with a V2X (Vehicle-to-Everything) service or a V2X application offering the V2X service, using a source layer 2 identity that is set to a layer 2 identity of the initiating communication device, wherein the first PC5 signalling is used for establishing a unicast link with a target communication device and wherein the first PC5 signalling includes an application layer identity of the target communication device and an identity of the V2X service;
receive a second PC5 signalling from the target communication device, wherein the second PC5 signalling is used to complete establishment of the unicast link with the target communication device; and
transmit one or more V2X messages to the target communication device via the unicast link established in association with the first PC5 signalling and the second PC5 signalling.

12. The initiating communication device of claim 11 , wherein the initiating communication device is aware of the presence of the target communication device via a discovery procedure or a one-to-many sidelink communication.

13. The initiating communication device of claim 11 , wherein the first PC5 signalling includes an identity of the V2X application offering the V2X service.

14. The initiating communication device of claim 11 , wherein the first PC5 signalling includes an application layer identity of the initiating communication device.

15. The initiating communication device of claim 11 , wherein the first PC5 signalling includes requested PC5 5QI, QoS (Quality of Service) parameter(s) or QoS profile(s) of a PC5 QoS flow for the V2X application offering the V2X service or the V2X service.

16. The initiating communication device of claim 11 , wherein the second PC5 signalling includes accepted PC5 5QI for the V2X application offering the V2X service or the V2X service.

17. The initiating communication device of claim 11 , wherein the first PC5 signalling is a Direct Communication Request message.

18. The initiating communication device of claim 11 , wherein the second PC5 signalling includes QoS (Quality of Service) parameter(s) for the V2X application offering the V2X service or the V2X service.

19. The initiating communication device of claim 11 , wherein the second PC5 signalling includes QoS (Quality of Service) profile(s) of a PC5 QoS flow for the V2X application offering the V2X service or the V2X service.

20. The initiating communication device of claim 11 , wherein the second PC5 signalling is a Direct Communication Accept message.

Assignees

• Asustek Comp Inc

Inventors

• Pan Li-Te
• Kuo Richard Lee-Chee
• Tseng Li-Chih

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H04W72/51

  based on terminal or device properties · CPC title

• H04W72/30

  Resource management for broadcast services · CPC title

• H04W76/11

  Allocation or use of connection identifiers · CPC title

• H04W4/40 Primary

  for vehicles, e.g. vehicle-to-pedestrians [V2P] · CPC title