US 11,856,396 B2
System and method for security activation with session granularity
Nathan Edward Tenny, Poway, CA (US); and Yi Guo, Shanghai (CN)
Assigned to Futurewei Technologies, Inc., Plano, TX (US)
Filed by Futurewei Technologies, Inc., Plano, TX (US)
Filed on Sep. 15, 2021, as Appl. No. 17/475,806.
Application 17/475,806 is a continuation of application No. 15/990,156, filed on May 25, 2018, granted, now 11,129,017.
Claims priority of provisional application 62/564,435, filed on Sep. 28, 2017.
Prior Publication US 2022/0078608 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 12/04 (2021.01); H04W 76/10 (2018.01); H04W 76/20 (2018.01); H04W 12/041 (2021.01); H04W 88/08 (2009.01)
CPC H04W 12/04 (2013.01) [H04W 12/041 (2021.01); H04W 76/10 (2018.02); H04W 88/08 (2013.01)] 20 Claims
OG exemplary drawing
 
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.