Patent ID: 11864264
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method performed by a User Equipment (UE) subscribed to a third Public Land Mobile Network (PLMN), the method comprising:
receiving services from the third PLMN;
moving to a first PLMN which can provide roaming services to the UE and has a roaming agreement with the third PLMN;
transmitting a registration request message to a network node of a second PLMN which can provide disaster roaming services to the UE based on a disaster occurring in the first PLMN; and
receiving a registration accept message from the network node of the second PLMN in response to the registration request message;
wherein the registration accept message includes information informing the UE that the UE has registered with the second PLMN and information about the disaster occurring in the first PLMN, and
wherein the second PLMN provides only limited services.