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

Claim 0:
1. A method for establishing secure communications in a wireless network, the method comprising:
receiving, by a user equipment (UE) from a base station, 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 UE and the base station;
transmitting, by the UE to the base station, a security command complete message that is integrity protected with the RRC integrity key and the first integrity protection algorithm as indicated in the AS SMC message; and
receiving, by the UE from the base station during a data radio bearer (DRB) establishment procedure that is performed after transmitting 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 UE and the base station.