METHODS OF POSITION-LOCATION DETERMINATION USING A HIGH-CONFIDENCE RANGE, AND RELATED SYSTEMS AND DEVICES
First Claim
1. A method of position-location determination, the method comprising:
- determining a first range for a wireless user device, using signaling from a high-confidence first ranging source;
determining a second range for the wireless user device, using signaling from a second ranging source that corresponds to a lower confidence than the high-confidence first ranging source;
determining whether first and second geometric shapes that are defined based on the first and second ranges, respectively, intersect;
determining a third range for the wireless user device, using signaling from a third ranging source; and
determining a position-location of the wireless user device by using the third range to indicate a position along a perimeter of the first geometric shape.
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Abstract
Methods of position-location determination are provided. The methods may include determining a first range for a wireless user device, using signaling from a high-confidence first ranging source. The methods may include determining a second range for the wireless user device, using signaling from a second ranging source that corresponds to a lower confidence than the high-confidence first ranging source. Moreover, the methods may include determining a position-location of the wireless user device by using a first geometric shape that is defined based on the first range. Related wireless user devices and central systems and/or central devices are also described.
14 Citations
26 Claims
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1. A method of position-location determination, the method comprising:
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determining a first range for a wireless user device, using signaling from a high-confidence first ranging source; determining a second range for the wireless user device, using signaling from a second ranging source that corresponds to a lower confidence than the high-confidence first ranging source; determining whether first and second geometric shapes that are defined based on the first and second ranges, respectively, intersect; determining a third range for the wireless user device, using signaling from a third ranging source; and determining a position-location of the wireless user device by using the third range to indicate a position along a perimeter of the first geometric shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of position-location determination, the method comprising:
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determining, using a wireless user device, a high-confidence first range calculation for the wireless user device, using signaling from a high-confidence first ranging source; determining, using the wireless user device, a second range calculation for the wireless user device, using signaling from a second ranging source that corresponds to a lower confidence than the high-confidence first ranging source, wherein the first and second range calculations define first and second radii of first and second circles, respectively; projecting, using the wireless user device, the second range calculation onto the first circle by increasing or decreasing the second radius such that an end point of the second radius is on a perimeter of the first circle; and determining a position-location of the wireless user device by using the end point of the second radius on the perimeter of the first circle. - View Dependent Claims (21, 22, 23)
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24. A wireless user device, comprising:
a processor configured to; determine a high-confidence first range calculation for the wireless user device, using signaling from a high-confidence first ranging source; determine a second range calculation for the wireless user device, using signaling from a second ranging source that corresponds to a lower confidence than the high-confidence first ranging source, wherein the first and second range calculations define first and second radii of first and second circles, respectively; project the second range calculation onto the first circle by increasing or decreasing the second radius such that an end point of the second radius is on a perimeter of the first circle; and determine a position-location of the wireless user device by using the end point of the second radius on the perimeter of the first circle. - View Dependent Claims (25, 26)
Specification