Patent ID: 11882618
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A communications apparatus, comprising:
a processor, configured to execute one or more instructions stored in a memory to cause the communications apparatus to perform steps comprising:
sending, to user equipment (UE), information indicating a target security parameter wherein the UE is in a first RRC mode before entering a second RRC mode in which a first access network dedicated identifier of the UE is stored in the UE and which is different from the first RRC mode, and wherein the first RRC mode is a RRC connected mode and the target security parameter is unused before entering the second RRC mode;
receiving request information and uplink data from the UE being in the second RRC mode, wherein the request information is used to request establishment or resumption of a RRC connection, and wherein security protection on uplink data uses the target security parameter.