Patent ID: 11929914
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method performed by a user equipment (UE) in a communication system, the method comprising:
receiving information including updated routing ID and an indication to initiate a registration procedure, and
in case that the UE is registered over a non-3rd generation partnership project (non-3GPP) access and has an emergency service ongoing over the non-3GPP access, the method further comprising:
waiting until the emergency service is completed;
releasing a non-access stratum (NAS) signaling connection locally and entering an IDLE mode over the non-3GPP access, after waiting the emergency service is completed;
performing a de-registration procedure; and
initiating a registration procedure for initial registration.