Patent ID: 8428617
Filing Date: 2013-04-23
Classification: G01S,H04W

Abstract:
1. A method of geo-locating a mobile station in a geographic area serviced by a plurality of base station sites co-located with location measurement units (LMUs), the method comprising: receiving a location request; determining a serving sector of a serving site; determining a reference position within the geographical area of the serving sector; selecting at least one secondary site to provide location information of the mobile station, the secondary site being selected based on its location with respect to the reference position; obtaining the location information from at least one measurement unit located within the at least one secondary site; and estimating the location of the mobile station based on the obtained location information, wherein the step of selecting at least one secondary site further comprises calculating a cost function to determine which secondary site has a minimum total cost and flagging that site as no longer considered an available candidate site.