Patent ID: 11882450
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. A device for determining a security algorithm, comprising a processor, a memory for storing instructions, and a transmission apparatus for communication functions,
wherein the processor is configured to execute the instructions in the memory to:
determine whether a base station supports a security algorithm of a terminal; and
adopt the security algorithm to perform an integrity security protection on a radio resource control (RRC) connection resume message, if the base station supports the security algorithm of the terminal;
send a radio resource control (RRC) connection setup message to the terminal if the base station does not support the security algorithm of the terminal;
wherein the processor is further configured to:
receive an RRC connection resume request message sent by the terminal through the transmission apparatus; and
acquire context information of the terminal from another base station;
wherein whether the base station supports the security algorithm of the terminal is determined according to the context information of the terminal.