CPC H04W 12/02 (2013.01) [H04L 9/0891 (2013.01); H04L 63/06 (2013.01); H04W 12/72 (2021.01); H04W 68/02 (2013.01); H04W 76/27 (2018.02)] | 20 Claims |
1. An apparatus of a user equipment (UE), comprising:
one or more baseband processors to derive a dynamic scrambling key in response to the UE releasing a radio resource control (RRC) connection and determine whether a non-access stratum (NAS) security mode control procedure is performed during the RRC connection, wherein, when the NAS security mode control procedure is performed during the RRC connection, the dynamic scrambling key is derived based on at least a cell identity and a NAS count value used to track a security mode complete message for the NAS security mode control procedure and, when the NAS security mode control procedure is not performed during the RRC connection, the dynamic scrambling key is derived based on at least the cell identity and a NAS count value used to track an initial uplink NAS message for RRC connection establishment; and
a memory to store the dynamic scrambling key and a temporary UE identifier (temporary UE ID) assigned to the UE;
wherein the one or more baseband processors are to monitor a paging request for a scrambled LIE identifier (UE ID) to determine if the paging request is intended for the UE by unscrambling the scrambled UE ID with the dynamic scrambling key to produce the temporary UE ID.
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