METHOD FOR MANAGING LOCATION OF MOBILE TERMINAL USING INTEGRATED VISITOR LOCATION REGISTER AND MOBILE TELEPHONE SYSTEM

摘要

PURPOSE: A method for managing a location of a mobile terminal using an integrated visitor location register(IVLR) and mobile telephone system are provided to reduce the database traffics of a home location register(HLR) and network traffics by message transmissions between a visitor location register(VLR) and the HLR by preparing the IVLR for managing mobile terminals in an integrated registration area. CONSTITUTION: A base station(BS) performs a wireless communication with a mobile terminal(MT). A mobile switching center(MSC) corresponds to a mobile telephone exchange. The VLR registers the terminal moved from a home registration area to another registration area. The IVLR serves as the HLR in the integrated registration areas(IRA10),(IRA20) comprised of several registration areas(RA11),(RA12),(RA21), (RA22). The HLR, IVLR and MSC are connected to each other via a public switched telephone network(PSTN). The BS is connected directly to the MSC, and communicates with the mobile terminals registered in its cell area. The MSC includes the IVLR and services for the mobile terminals in the registered area. A call set and location registration are performed by the HLR, VLR and IVLR close to the VLR.