Intelligent intersection apparatus and method for network-based positioning
First Claim
1. An intelligent intersection method for network-based positioning, comprising:
- defining a first cell model having a first antenna as a center point and a second cell model having a second antenna as the center point;
determining first and second distances from the first and second antennas, respectively, to a mobile station;
defining a first circle for the first cell model using the first distance as a radius of the first circle;
defining a second circle for the second cell model using the second distance as the radius of the second circle;
determining first and second intersection points of the first and second circles; and
determining a cost function for the first intersection point and the second intersection point relative to the first and second cell models based on parameters defining each cell to select the first or the second intersection point indicative of a location of the mobile station.
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Abstract
An intelligent intersection method and apparatus for network-based positioning include defining a first cell model having a first antenna as a center point and a second cell model having a second antenna as the center point, determining first and second distances from the first and second antennas, respectively, to a mobile station. The method and apparatus define a first circle for the first cell model using the first distance as a radius and a second circle for the second cell model using the second distance as the radius. The method and apparatus further determine first and second intersection points of the first and second circles, and determine a cost function for the first intersection point and the second intersection point relative to the first and second cell models based on parameters defining each cell to select the first or the second intersection point indicative of a location of the mobile station.
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Citations
30 Claims
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1. An intelligent intersection method for network-based positioning, comprising:
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defining a first cell model having a first antenna as a center point and a second cell model having a second antenna as the center point;
determining first and second distances from the first and second antennas, respectively, to a mobile station;
defining a first circle for the first cell model using the first distance as a radius of the first circle;
defining a second circle for the second cell model using the second distance as the radius of the second circle;
determining first and second intersection points of the first and second circles; and
determining a cost function for the first intersection point and the second intersection point relative to the first and second cell models based on parameters defining each cell to select the first or the second intersection point indicative of a location of the mobile station. - 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)
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28. An intelligent intersection method for network-based positioning, comprising:
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defining a first circle for a first cell model using a first distance to a mobile station as a radius of the first circle;
defining a second circle for a second cell model using a second distance to the mobile station as the radius of the second circle;
determining first and second intersection points of the first and second circles; and
determining a cost function for the first intersection point and the second intersection point relative to the first and second cell models based on parameters defining each cell to select the first or the second intersection point indicative of a location of the mobile station.
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29. An intelligent intersection apparatus for network-based positioning, comprising:
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a base station controller defining a first cell model having a first antenna as a center point and a second cell model having a second antenna as the center point, determining first and second distances from the first and second antennas, respectively, to a mobile station, defining a first circle for the first cell model using the first distance as a radius of the first circle, defining a second circle for the second cell model using the second distance as the radius of the second circle; and
a location services node determining first and second intersection points of the first and second circles, and determining a cost function for the first intersection point and the second intersection point relative to the first and second cell models based on parameters defining each cell to select the first or the second intersection point indicative of a location of the mobile station.
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30. An intelligent intersection apparatus for network-based positioning, comprising:
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base station means for defining a first cell model having a first antenna as a center point and a second cell model having a second antenna as the center point, for determining first and second distances from the first and second antennas, respectively, to a mobile station, for defining a first circle for the first cell model using the first distance as a radius of the first circle, for defining a second circle for the second cell model using the second distance as the radius of the second circle; and
location services means for determining first and second intersection points of the first and second circles, and for determining a cost function for the first intersection point and the second intersection point relative to the first and second cell models based on parameters defining each cell to select the first or the second intersection point indicative of a location of the mobile station.
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Specification