PROTECTION OF NON-ACCESS STRATUM COMMUNICATION IN A WIRELESS COMMUNICATION NETWORK

PROTECTION OF NON-ACCESS STRATUM COMMUNICATION IN A WIRELESS COMMUNICATION NETWORK

Network equipment (16A) is configured for use in a wireless communication network. The network equipment (16A) is configured to detect one or more conditions under which non-access stratum (NAS) keys (26A) that protect NAS communication between the network equipment (16A) and a wireless device (12)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WIFVESSON, MONICA, BEN HENDA, NOAMEN
Format: Patent
Sprache:eng ; pol
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:Network equipment (16A) is configured for use in a wireless communication network. The network equipment (16A) is configured to detect one or more conditions under which non-access stratum (NAS) keys (26A) that protect NAS communication between the network equipment (16A) and a wireless device (12) are to be refreshed. Responsive to detecting the one or more conditions, the network equipment (16A) is configured to derive, from a base key (24A) on which the NAS keys (26A) were derived, a new base key (24B) on which fresh NAS keys (26B) are to be derived. The network equipment (16A) is also configured to activate the new base key (24B).