Location positioning in wireless networks
First Claim
1. A system comprising:
- a database containing antenna gain differences between multiple antenna patterns of a wireless network access node;
calculation logic for determining receive signal strength differences of a signal received using said multiple antenna patterns, said signal being transmitted by a device disposed within one or more of said multiple antenna patterns; and
comparison logic for comparing said receive signal strength differences to said antenna gain differences and identifying a closest match.
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0 Petitions
Accused Products
Abstract
Disclosed are systems and methods which provide for location positioning in wireless networks using techniques which are adapted to provide reliable location determinations even in complex topological environments. Embodiments utilize multiple antenna patterns, such as may be provided using phased array antennas, and implement location positioning techniques which do not require alteration of remote stations in providing location positioning. Various techniques for determining location may be implemented, including a channel model independent approach, a channel model based approach, or combinations thereof. A channel model independent approach used in providing location positioning may compare receive signal strength differences to an antenna gain difference table to determine an angle in the azimuth that a remote station is located. A channel model based approach used in providing location positioning may compare receive signal strength measurements to a database of signal strengths created using a wireless channel model.
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Citations
109 Claims
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1. A system comprising:
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a database containing antenna gain differences between multiple antenna patterns of a wireless network access node;
calculation logic for determining receive signal strength differences of a signal received using said multiple antenna patterns, said signal being transmitted by a device disposed within one or more of said multiple antenna patterns; and
comparison logic for comparing said receive signal strength differences to said antenna gain differences and identifying a closest match. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A system comprising:
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a database containing predicted receive signal strength information for multiple antenna patterns of a wireless network access node;
measurement logic for measuring receive signal strengths of a signal received using said multiple antenna patterns, said signal being transmitted by a device disposed within one or more of said multiple antenna patterns; and
comparison logic for comparing said measured receive signal strengths to said predicted receive signal strength information and identifying a closest match. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
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75. A method for providing information useful in determining a position of a device within a wireless network, said method comprising:
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calculating antenna gain differences between multiple antenna patterns of a wireless network access node;
determining receive signal strength differences of a signal received using said multiple antenna patterns, said signal being transmitted by a device disposed within one or more of said multiple antenna patterns; and
comparing said receive signal strength differences to said antenna gain differences and identifying a closest match. - View Dependent Claims (76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90)
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91. A method for providing information useful in determining a position of a device within a wireless network, said method comprising:
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predicting receive signal strength information for multiple antenna patterns of a wireless network access node; and
comparing measured receive signal strengths to said predicted receive signal strength information and identifying a closest match. - View Dependent Claims (92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104)
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105. A system for providing location positioning of a device in a wireless network, said system comprising:
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a channel model independent determination algorithm utilizing receive signal strength differences between multiple antenna patterns of a wireless network node to determine information with respect to a position of said device; and
a channel model based determination algorithm utilizing receive signal strengths of said multiple antenna patterns to determine information with respect to a position of said device. - View Dependent Claims (106, 107)
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108. A system for providing location positioning of a device in a wireless network, said system comprising:
a channel model independent determination algorithm utilizing receive signal strength differences between multiple antenna patterns of a wireless network node and antenna gain differences between said multiple antenna patterns to determine information with respect to a position of said device.
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109. A system for providing location positioning of a device in a wireless network, said system comprising:
a channel model based determination algorithm utilizing receive signal strengths of said multiple antenna patterns and signal strength predictions provided by modeling an environment of said wireless network to determine information with respect to a position of said device.
Specification