Patent ID: 11864147
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method performed, by a user equipment (UE) in a wireless communication system, the method comprising:
selecting a public land mobile network (PLMN);
transmitting, to the PLMN, a registration request message; and
receiving, from the PLMN, a registration accept message,
wherein the registration request message includes information for a registration type,
wherein the information for the registration type represents one among a plurality of 3-bit values related to a type of a requested registration, and
wherein, based on the information for the registration type representing a 3-bit value which is configured for a disaster roaming, the UE is provided with a disaster roaming service from the PLMN based on a disaster condition applied to a home PLMN (HPLMN) of the UE.