REGISTRATION IN A WIRELESS COMMUNICATION NETWORK

A core network node (16) is configured for use in a wireless communication network (10). The core network node (16 receives a registration request (14) that requests registration of a wireless device (12) with the wireless communication network (10). The core network node (16) protects a security context (20) shared between the wireless device (12) and the core network node (16, e.g., including encrypting the security context (20). The core network node (16) transmits, to a radio network node (23) in the wireless communication network (10), signaling (24) that includes the registration request (14) and the protected security context (20P). In some embodiments, the signaling (24) indicates the registration request (14) and the protected security context (20P) are to be re-routed to a target core network node (18) in the wireless communication network (10).