CPC H04W 12/04 (2013.01) [H04W 12/041 (2021.01); H04W 76/10 (2018.02); H04W 88/08 (2013.01)] | 20 Claims |
1. A method comprising:
receiving, by a user equipment (UE) from an access node, a first message indicating a security algorithm for a signaling radio bearer (SRB) of a protocol data unit (PDU) session;
determining, by the UE, the security algorithm for the SRB of the PDU session;
receiving, by the UE from the access node and based on the security algorithm, a first radio resource control (RRC) connection reconfiguration message over the SRB of the PDU session, the first RRC connection reconfiguration message instructing the UE to add a first DRB to the PDU session and to activate integrity protection for the first DRB of the PDU session; and
transmitting or receiving, by the UE and based on the security algorithm, integrity-protected data over the first DRB of the PDU session after the receiving the first RRC connection reconfiguration message.
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