US 11,812,289 B2
Method for dealing with network failure
Hyunsook Kim, Seoul (KR); Sungduck Chun, Seoul (KR); Laeyoung Kim, Seoul (KR); Sangmin Park, Seoul (KR); and Myungjune Youn, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/599,672
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Dec. 23, 2019, PCT No. PCT/KR2019/018287
§ 371(c)(1), (2) Date Sep. 29, 2021,
PCT Pub. No. WO2020/204310, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 10-2019-0038413 (KR), filed on Apr. 2, 2019.
Prior Publication US 2022/0167185 A1, May 26, 2022
Int. Cl. H04W 8/02 (2009.01); H04W 24/04 (2009.01); H04W 48/04 (2009.01); H04W 60/04 (2009.01); H04W 88/06 (2009.01)
CPC H04W 24/04 (2013.01) [H04W 8/02 (2013.01); H04W 48/04 (2013.01); H04W 60/04 (2013.01); H04W 88/06 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method performed by a network node managing mobility in a first Public Land Mobile Network (PLMN), the method comprising:
receiving, by the network node, an access request message of a terminal from a base station in the first PLMN,
wherein the terminal is a terminal subscribed to a second PLMN,
wherein the access request message is transmitted by the terminal, based on information related to the second PLMN which was transmitted by the base station in the first PLMN, and
wherein the access request message is transmitted by the terminal in order to access the second PLMN;
determining, by the network node, to allow the terminal to roam to the first PLMN, based on an occurrence of a failure in the second PLMN; and
based on the determination, transmitting, by the network node, an accept message to the access request message to the terminal through a base station in the first PLMN,
wherein the accept message includes information indicating that a failure has occurred in the second PLMN.