Patent ID: 8478287

Claim:
A method of providing location information of a target Secure User Plane Location (SUPL) Enabled Terminal (target SET) while protecting privacy of a user of the target SET in a Home-SUPL Location server providing the location information of the target SET, the method comprising: receiving a location service request message including an ID of a requesting client and a real ID of the target SET; creating a virtual ID corresponding to the real ID of the target SET; generating an SUPL Initiation (SUPL INIT) message including the virtual ID for location session initiation; transmitting the SUPL INIT message to the target SET; receiving an SUPL Positioning Initiation (SUPL POS INIT) message including the virtual ID in response to the SUPL INIT message; identifying the target SET by using the virtual ID, and performing the positioning of the target SET; and transmitting the positioning result to the requesting client, wherein the Home-SUPL server includes a Home-SUPL Location Center (H-SLC) and a Home-SUPL Positioning Center (H-SPC), and a Positioning Request (PREQ) message including the virtual ID and a positioning method information to be used for positioning is transmitted from the H-SLC to the H-SPC.