Patent ID: 11895498
Assignee: FUTUREWEI TECHNOLOGIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A base station, comprising:
a non-transitory memory storage comprising instructions; and
one or more processors in communication with the non-transitory memory storage, wherein the one or more processors execute the instructions to:
transmit, to a user equipment (UE), an access stratum (AS) security mode command (SMC) message during an AS SMC procedure, the AS SMC message being integrity protected with a radio resource control (RRC) integrity key and indicating a first integrity protection algorithm and a first encryption algorithm for a RRC traffic signaling protection procedure between the base station and the UE;
receive a security command complete message from the UE, the security command complete message being integrity protected with the RRC integrity key and the first integrity protection algorithm as indicated in the AS SMC message; and
transmit, to the UE during a data radio bearer (DRB) establishment procedure that is performed after receiving the security command complete message, a RRC message comprising a user plane (UP) integrity indication and a UP encryption indication for a DRB of a protocol data unit (PDU) session between the base station and the UE.