Patent ID: 11924630
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A core network node in a core network of a wireless communication network, the core network node providing a source mobility management function, the core network node comprising:
an interface circuit for communicating with a target mobility management function in a core network of the wireless communication network; and
a processing circuit configured to:
receive, from the target mobility management function, a request for a security context for a user equipment;
determine that an operator specific policy is met;
generate a new non-access stratum key responsive to determining the operator specific policy is met; and
send, responsive to request, the new non-access stratum key and a key change indication to the target mobility management function.