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; and
(d) identifying one of the determined locations 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.
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Accused Products
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.
185 Citations
22 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; and (d) identifying one of the determined locations 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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- 18. In a method for determining whether an estimated location of a wireless device includes a forged location measurement comprising the step of determining a first estimated location of the wireless device from information or signals provided by a cellular network, the improvement comprising determining a second estimated location of the wireless device from signals received from a set of satellites, comparing the first and second estimated locations, and identifying the second estimated location as having one or more forged signals if the comparison between the first estimated location and second estimated location is greater than a predetermined threshold.
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20. A system for determining whether an estimated location of a wireless device includes one or more forged location measurements, comprising:
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(a) circuitry for determining a first estimated location of the wireless device from a first set of location measurements; (b) circuitry for determining a second estimated location of the wireless device from a second set of location measurements; (c) circuitry for comparing the first estimated location to the second estimated location; and (d) circuitry for identifying one of the determined locations 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. - View Dependent Claims (21, 22)
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Specification