Patent ID: 9629002
Date: 2017-04-18
CPC Classifications: H04L,H04W

Claim:
1. A method of saving PLMN (public land mobile network) information for a user equipment in a wireless communication system, comprising the steps of: determining a selected PLMN among at least one PLMN; detecting a connection problem related with a cell of the selected PLMN before completion of a registration with the selected PLMN; and saving information on the selected PLMN in a VarRLF-Report (variable radio link failure-report) after detecting the connection problem, wherein the saved information on the selected PLMN comprises a PLMN-Identity for the selected PLMN corresponding to a registered PLMN when the connection problem is detected, and wherein the selected PLMN is provided by the NAS (non-access stratum) layer.