System and method for location assurance of a mobile device
First Claim
1. 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.
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Abstract
A system and method for determining whether an estimated location of a wireless device includes one or more forged location measurements. A first estimated location of the wireless device using a first set of location measurements is determined, and a second estimated location of the wireless device using a second set of location measurements is determined. The first estimated location may be compared to the second estimated location. One of the determined locations may then be identified as having one or more forged location measurements if the comparison between the first estimated location and second estimated location is greater than a predetermined threshold. The second set of location measurements may be produced using a location technology different than the location technology used to produce the first set of location measurements.
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Citations
15 Claims
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1. A method for determining whether an estimated location of a wireless device includes one or more forged location measurements, comprising the steps of:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification