Title:
SIDELINK COMMUNICATION METHOD, APPARATUS AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/133912
Kind Code:
A1
Abstract:
Disclosed in the present application are a sidelink communication method, apparatus and system, applied to the field of mobile communication. The method comprises: a first terminal device determines that PDCP COUNT of a first bearer is about to be rolled over, and that the first bearer is a sidelink bearer initiated and established by the first terminal device with a second terminal device; and the first terminal device initiates a bearer modification process or a key update process for the first bearer with the second terminal device. The method can solve the problem that different data packets use the same security input parameter, can avoid security risks caused by security reduction, and compared with a method of deleting the first bearer and adding a bearer, can avoid the problem of causing large transmission interruption and loss of data packets.
Inventors:
WANG NANXIN (CN)
PENG WENJIE (CN)
PENG WENJIE (CN)
Application Number:
PCT/CN2020/139044
Publication Date:
June 30, 2022
Filing Date:
December 24, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L9/08; H04W12/04; H04W74/08
Foreign References:
| CN110769418A | 2020-02-07 | |||
| CN110771191A | 2020-02-07 | |||
| CN109413005A | 2019-03-01 | |||
| CN111971986A | 2020-11-20 | |||
| US20200008266A1 | 2020-01-02 |
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