Patent ID: 7613155
Filing Date: 2009-11-03
Classification: H04L,H04W

Abstract:
1. A method of providing a SUPL (Secure User Plane Location) service by interworking between a mobile communication network and a wireless local area network (WLAN), the method comprising: receiving a location service request from a client; requesting routing information to a HSS/HLR (Home Subscriber Server/Home Location Register); receiving a routing information confirmation including the routing information from the HSS/HLR; sending a WLAN UE (user equipment) routing information inquiry to an AAA (Authentication/Authorization/Accounting) server; receiving a WLAN UE routing information response from the AAA server, wherein the WLAN UE routing information response includes WLAN UE address information; sending a SUPL initiation message to a WLAN UE through a WLAN AN (access network) using the WLAN UE address information received from the AAA server; receiving a SUPL positioning initiation message from the WLAN UE in order to start a SUPL positioning session with the WLAN UE; exchanging SUPL positioning messages with the WLAN UE for performing the SUPL positioning session to calculate a location of the WLAN UE; and sending a location service response that includes the calculated location of the WLAN UE to the client, wherein the WLAN UE is roaming with the WLAN via the mobile communication network.