Patent ID: 8718673

Claim:
A method for determining whether an estimated location of a wireless device includes one or more forged location measurements, comprising the steps of: (a) determining a first estimated location of the wireless device using a first set of location measurements; (b) determining a second estimated location of the wireless device using a second set of location measurements; (c) comparing the first estimated location to the second estimated location, wherein the comparing comprises: comparing the first estimated location and the first estimated location's uncertainty at a first confidence that defines a first region to the second estimated location and the second estimated location's uncertainty at a second confidence that defines a second region, wherein the distance between the first region and the second region is greater than zero; and (d) identifying one of the determined locations as having one or more forged location measurements if the distance between the first region and the second region is greater than a predetermined threshold; and (e) identifying the determined locations as valid if the distance between the first region and the second region is less than the predetermined threshold.