CPC H04W 12/10 (2013.01) [H04L 9/0618 (2013.01); H04L 9/14 (2013.01); H04L 9/3242 (2013.01); H04L 63/061 (2013.01); H04L 63/08 (2013.01); H04L 63/20 (2013.01); H04L 63/205 (2013.01); H04W 12/04 (2013.01); H04W 12/06 (2013.01); H04W 12/08 (2013.01); H04L 2209/80 (2013.01); H04W 60/00 (2013.01); H04W 76/10 (2018.02)] | 21 Claims |
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.
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