METHOD FOR AUTOMATICALLY UPDATING CHANGE OF A PREFERENCE BUSINESS NETWORK IN A TERMINAL TO REFLECT POLICY CHANGE WITHOUT TRAFFIC BURDEN AND A DEVICE THEREOF

摘要

PURPOSE: A method for automatically updating change of a preference business network in a terminal is provided to maintain continuity of service with change of a terminal in which a USIM card is mounted, and to maintain loaming service through PLMN.;CONSTITUTION: A business network extraction unit(310) receives location registration update information in a process for location registration or location registration update. The business network extraction unit extracts information received in a process of the location registration or the location registration update. A business network change judging unit(320) determines service change of a corresponding terminal based on the extracted information. An OTA transmission request part(330) requests transmission of a control message to the terminal to update information managed by the terminal.;COPYRIGHT KIPO 2010