公开(公告)号：US20240179524A1

公开(公告)日：2024-05-30

申请号：US18428527

申请日：2024-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Linping YANG ,  Juan DENG ,  Wen HU ,  Xiange HU ,  Xiao WEN ,  Li QIANG ,  Lin SHU

IPC: H04W12/08 ,  H04W12/72

CPC classification number: H04W12/08 ,  H04W12/72

Abstract: A security context update method and a communication apparatus are provided. The method is performed by a terminal, and includes: storing a security context of first access and a security context of second access when the first access of the terminal and the second access of the terminal enter a deregistered state. The first access is one of 3GPP access and non-3GPP access, the second access is the other of the 3GPP access and the non-3GPP access, and the first access and the second access are different. According to the method, when the terminal supports multiple records for multiple registration, storage occasions of NAS security contexts corresponding to the 3GPP access and the non-3GPP access are provided.