Patent ID: 8744477

Claim:
A system for determining a location using SUPL (Secure User Plane Location), comprising: a home location server for transmitting a location initiation message (SUPL INIT) to a targeted mobile set in response to a request message from an SUPL agent for requesting a location service of the target mobile set; and a targeted mobile set for reporting an event occurrence to the home location server whenever an event occurs, after a positioning method is determined by using a location capability transmitted to said home location server in response to the received SUPL INIT, wherein the home location server or the targeted mobile set performs each of a plurality of positioning procedures according to the determined positioning method during a time set by the SUPL agent and the same positioning method is used in each of the positioning procedures until the set time is arrived, and wherein each of the plurality of positioning procedures is performed when the event of the targeted mobile set occurs.