Patent ID: 8185128

Claim:
An apparatus supporting location services (LCS) for a mobile station roaming from a home network and communicating with a visited network, the apparatus comprising: at least one processor to: receive a location request for a location of the mobile station at a home mobile positioning center (H-MPC) in the home network, wherein the location request is received from an entity; determine that the entity is authorized to obtain the location of the mobile station before the location of the mobile station is determined; receive first information from the mobile station, wherein the first information comprises an indication of a current network location of the mobile station; determine a serving mobile positioning center (S-MPC) in the visited network based on the indication of the current network location of the mobile station; request a location of the mobile station from the S-MPC; receive second information comprising the location of the mobile station from the S-MPC; and send the location of the mobile station received from the S-MPC to the entity as the location of the mobile station when the entity is authorized to receive the location of the mobile station; and a memory coupled to the at least one processor.