METHOD FOR PROVIDING LOCATION OF MOBILE STATION IN WIRELESS COMMUNICATION SYSTEM

摘要

PURPOSE: A method of providing location information of a mobile station in a radio communications system is provided to provide a location based service while lightly maintaining a software function of the mobile station. CONSTITUTION: An advanced mobile station (AMS) (100) calculates a global positioning system (GPS) pseudo range using GPS assistive information. The AMS transmits a calculation result to a location agent (LA) (221). The LA transmits the GPS pseudo range to each of a visited-network location server (VLS) (310) and a home-network location server (HLS) (410). The LA transmits a location service end message to each of the VLS and the HLS. Each of the VLS and the HLS calculates the location of the AMS using the GPS pseudo range. Each of the VLS and the HLS transmits the calculation result to a location service requestor.