Use of third party ultra-wideband devices to establish geo-positional data
First Claim
1. A method for determining a location of an ultra-wideband wireless device, comprising:
- transmitting a first request to at least two ultra-wideband devices having substantially fixed locations for determining a location of a first ultra-wideband wireless device; and
transmitting a second request to a least one additional ultra-wideband device if the location of the first ultra-wideband wireless device cannot be determined using data received in response to the first request.
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Accused Products
Abstract
A system, method and article of manufacture are provided for determining a location of a wireless device in a wireless communication system. In one embodiment of the present invention, an initial request is transmitted to wireless devices having known locations for positioning information so that a location can be determined for a first wireless device having an undetermined location. Those wireless devices with known locations that receive the initial request in turn transmit positioning information to the first wireless device. If positioning information from less than a sufficient number of wireless devices with known locations is received by the first mobile wireless device, an additional request is then transmitted to other wireless devices. After responses to the request from one or more of these other wireless devices are received, communication then occurs with at least a portion of the responding wireless devices to obtain information relating to the distance between the first wireless device and the responding wireless devices. A location of the first wireless device is then estimated using the information obtained from the responding wireless devices.
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Citations
46 Claims
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1. A method for determining a location of an ultra-wideband wireless device, comprising:
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transmitting a first request to at least two ultra-wideband devices having substantially fixed locations for determining a location of a first ultra-wideband wireless device; and
transmitting a second request to a least one additional ultra-wideband device if the location of the first ultra-wideband wireless device cannot be determined using data received in response to the first request. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for determining a location of an ultra-wideband wireless device, comprising:
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logic for transmitting a first request to at least two ultra-wideband devices having substantially fixed locations for determining a location of a first ultra-wideband wireless device; and
logic for transmitting a second request to a least one additional ultra-wideband device if the location of the first ultra-wideband wireless device cannot be determined using data received in response to the first request. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for determining a location of an ultra-wideband wireless device, comprising:
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transmitting a first request to at least three mobile ultra-wideband devices for determining a location of a first ultra-wideband wireless device; and
transmitting a second request to a least one additional ultra-wideband device if the location of the first ultra-wideband wireless device cannot be determined using data received in response to the first request. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A system for determining a location of an ultra-wideband wireless device, comprising:
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logic for transmitting a first request to at least three mobile ultra-wideband devices for determining a location of a first ultra-wideband wireless device; and
logic for transmitting a second request to a least one additional ultra-wideband device if the location of the first ultra-wideband wireless device cannot be determined using data received in response to the first request. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46)
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Specification