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

Claim 20:
21. A communications method, comprising:
sending, by a first access network node, 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 used in the first RRC mode 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, by the first access network node or a second access network node, request information and uplink data from the UE being in the 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.