Patent ID: 11917412
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method, performed by a wireless device, of registering with a wireless communication network, the method comprising:
sending a registration request message to the network;
establishing a first security context with a first network Access and Mobility Management Function, AMF;
receiving a cryptographically unprotected authentication request message from a second AMF;
processing the unprotected authentication request message; and
marking the first security context as temporary, wherein processing the unprotected authentication request message comprises processing the unprotected authentication request message in response to the first security context being marked as temporary,
wherein processing the unprotected authentication request message in response to the first security context being marked as temporary further comprises processing the unprotected authentication request message only if an AMF reallocation is expected.