Patent ID: 7877102
Filing Date: 2011-01-25
Classification: G01S,H04W

Abstract:
1. A method of performing periodic positioning in a mobile communication system, the method performed by a target terminal and comprising: receiving, from an SLP (SUPL Location Platform), a first Secure User Plane Location (SUPL) message that includes trigger type information related to periodic positioning, and the first SUPL message also includes a session-id, a positioning method, and an SLP mode; sending, to the SLP, a Secure User Plane Location (SUPL) START message to start a periodic triggered session with the SLP for the periodic positioning, the SUPL START message including at least a session-id, lid, and target terminal capabilities, wherein the target terminal capabilities are used to select an intended positioning method to be used for the periodic triggered session; receiving, from the SLP, a second Secure User Plane Location (SUPL) message that includes information related to at least one of a start time of the periodic triggered session and an interval for the periodic positioning; performing a SUPL positioning procedure based upon the information included in the SUPL START message; repeating the SUPL positioning procedure based upon the information included in the SUPL START message; and receiving, from the SLP, a SUPL END message after a last positioning result is reported to a SUPL Agent from the SLP, wherein all of the above steps are based on Secure User Plane Location (SUPL) technology that provides periodic positioning through a user plane, and wherein the SLP and the target terminal support Internet Protocol (IP).