IP Library › Granted Patent US 12,232,208
Granted Patent B2
US 12,232,208 · App. 17/590,656 · Granted Feb 18, 2025

Communication method, SLRB establishment method, and communications apparatus

Inventors: Xiangyu Li (Shanghai, CN); Wenjie Peng (Shanghai, CN); Jun Wang (Shanghai, CN); Xiao Xiao (Shenzhen, CN); Mingzeng Dai (Shenzhen, CN)
Assignee: Huawei Technologies Co., Ltd.
H04W76/30H04W4/40H04W92/18
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Quick Facts
Patent No.
US 12,232,208
App. No.
17/590,656
Granted
Feb 18, 2025
Kind
B2
Abstract

Embodiments of this application provides a communication method for releasing a sidelink radio bearer (SLRB), this method can be implemented by a terminal device, the method including: the terminal device obtains an indication, the indication indicates that no Quality of Service (QoS) flow with data that is mapped to a first SLRB; and the terminal device releases the first SLRB.

Claims (35)

1. A method, applied to a first terminal device or a chip of the first terminal device, the method comprising:

obtaining an indication indicating that no Quality of Service (QoS) flow with data is mapped to a first sidelink radio bearer (SLRB); and

releasing, based on the indication, the first SLRB, wherein the releasing the first SLRB comprises:

releasing the first SLRB in response to receiving a second PC5-radio resource control (PC5-RRC) reconfiguration complete message from a second terminal device.

2. The method according to claim 1 , wherein that no QoS flow with data is mapped to the first SLRB comprises:

all QoS flows with data mapped to the first SLRB have been released.

3. The method according to claim 1 , wherein the indication is configured by an upper layer of the first terminal device through an upper layer configuration, or a PC5-RRC reconfiguration message.

4. The method according to claim 3 , wherein the upper layer is a vehicle to everything (V2X) layer of the first terminal device.

5. The method according to claim 1 , wherein releasing the first SLRB comprises one or more of following:

indicating release of the first SLRB to an associated service data adaptation protocol (SDAP) entity;

releasing a radio link control (RLC) entity associated with the first SLRB;

releasing a logical channel associated with the first SLRB; or

releasing a SDAP entity in response to that all SLRBs associated with the SDAP entity are released.

6. A communication apparatus comprising:

at least one processor, and a non-transitory memory storing instructions for execution by the at least one processor; wherein, when executed, the instructions cause the communication apparatus to perform operations comprising:

obtaining an indication indicating that no Quality of Service (QOS) flow with data is mapped to a first sidelink radio bearer (SLRB); and

releasing the first SLRB based on the indication, wherein the releasing the first SLRB comprises:

releasing the first SLRB in response to receiving a second PC5-radio resource control (PC5-RRC) reconfiguration complete message from a second terminal device.

7. The communication apparatus according to claim 6 , wherein that no QoS flow with data is mapped to the first SLRB comprises:

all QoS flows with data mapped to the first SLRB have been released.

8. The communication apparatus according to claim 6 , wherein the indication is configured by an upper layer of a first terminal device through an upper layer configuration, or by a PC5-RRC reconfiguration message.

9. The communication apparatus according to claim 8 , wherein the upper layer is a vehicle to everything (V2X) layer of the communication apparatus.

10. The communication apparatus according to claim 6 , wherein the releasing the first SLRB comprises one or more of following:

indicating release of the first SLRB to an associated service data adaptation protocol (SDAP) entity;

releasing a radio link control (RLC) entity associated with the first SLRB;

releasing a logical channel associated with the first SLRB; or

releasing a SDAP entity in response to that all SLRBs associated with the SDAP entity are released.

11. A non-transitory computer-readable storage medium, comprising instructions wherein which, when executed by at least one processor, the instructions cause a first terminal device to perform operations comprising:

obtaining an indication indicating that no Quality of Service (QOS) flow with data is mapped to a first sidelink radio bearer (SLRB); and,

releasing the first SLRB based on the indication, wherein the releasing the first SLRB comprises:

releasing the first SLRB in response to receiving a second PC5-radio resource control (PC5-RRC) reconfiguration complete message from a second terminal device.

12. The non-transitory computer-readable storage medium according to claim 11 , wherein that no QoS flow with data is mapped to the first SLRB, comprises:

all QoS flows with data mapped to the first SLRB have been released.

13. The non-transitory computer-readable storage medium according to claim 11 , wherein the indication is configured by an upper layer of the first terminal device through an upper layer configuration, or by a PC5-RRC reconfiguration message.

14. The non-transitory computer-readable storage medium according to claim 13 , wherein the upper layer is a vehicle to everything (V2X) layer of the first terminal device.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2024
From: LI, XIANGYU; PENG, WENJIE; WANG, JUN; XIAO, XIAO
To: HUAWEI TECHNOLOGIES CO., LTD.
Reel/Frame 069692/0656 →
EMPLOYMENT AGREEMENT Recorded Dec 27, 2024
From: DAI, MINGZENG
To: HUAWEI TECHNOLOGIES CO., LTD.
Reel/Frame 069792/0287 →
Priority Claims (1)
CN 201910727621.2 · Aug 7, 2019 · national
Continuity (2)
Continuation PCTCN2019115168 · Nov 1, 2019
Related Publication 20220159776A1 · May 19, 2022
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