CPC H04W 12/009 (2019.01) [H04L 63/205 (2013.01); H04W 12/033 (2021.01); H04W 12/106 (2021.01)] | 18 Claims |
1. A method comprising:
a user equipment (UE) transmitting, via a radio access network (RAN) node, a Protocol Data Unit (PDU) Session Establishment Request message toward a Session Management Function (SMF); and
after transmitting the PDU Session Establishment Request message, the UE receiving from the RAN node a Radio Resource Control (RRC) Connection Reconfiguration message comprising: i) a PDU session identifier (ID), ii) a PDU Session Establishment Accept message generated by the SMF, and iii) a user plane (UP) security policy for the PDU Session identified by the PDU session ID, wherein:
the UP security policy for the PDU session indicates:
i) whether UP confidentiality protection shall be activated or not for all data radio bearers (DRBs) belonging to the PDU session; and/or
ii) whether UP integrity protection shall be activated or not for all data radio bearers (DRBs) belonging to the PDU session.
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