Intelligent intersection apparatus and method for network-based positioning
First Claim
1. A method, comprising:
- defining, by a controller, a first cell model having a first antenna and a second cell model having a second antenna;
determining, by the controller, first and second distances from the first and second antennas, respectively, to a mobile station,wherein the first cell model and the second cell model are each based on parameters defining each cell and are defined independent of the first and second distances, andwherein the parameters comprise at least one of, an antenna bearing defining a main power direction of the antenna, a half power beam width, a maximum serving radius, and a back serving radius;
defining, by the controller, a first circle for the first cell model using the first distance as a radius of the first circle, the first circle having the first antenna as a center point;
defining, by the controller, a second circle for the second cell model using the second distance as the radius of the second circle, the second circle having the second antenna as a center point;
determining, by the controller, first and second intersection points of the first and second circles;
determining, by the controller, a cost function for the first intersection point and the second intersection point relative to the first and second cell models, wherein each cost function yields a cost function value; and
selecting, by the controller, the first or the second intersection point indicative of a location of the mobile station based on which cost function value is a smaller value.
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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.
15 Citations
33 Claims
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1. A method, comprising:
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defining, by a controller, a first cell model having a first antenna and a second cell model having a second antenna; determining, by the controller, first and second distances from the first and second antennas, respectively, to a mobile station, wherein the first cell model and the second cell model are each based on parameters defining each cell and are defined independent of the first and second distances, and wherein the parameters comprise at least one of, an antenna bearing defining a main power direction of the antenna, a half power beam width, a maximum serving radius, and a back serving radius; defining, by the controller, a first circle for the first cell model using the first distance as a radius of the first circle, the first circle having the first antenna as a center point; defining, by the controller, a second circle for the second cell model using the second distance as the radius of the second circle, the second circle having the second antenna as a center point; determining, by the controller, first and second intersection points of the first and second circles; determining, by the controller, a cost function for the first intersection point and the second intersection point relative to the first and second cell models, wherein each cost function yields a cost function value; and selecting, by the controller, the first or the second intersection point indicative of a location of the mobile station based on which cost function value is a smaller value. - 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, by a controller, a first circle for a first cell model using a first distance to a mobile station as a radius of the first circle; defining, by the controller, a second circle for a second cell model using a second distance to the mobile station as the radius of the second circle, wherein the first cell model and the second cell model are each based on parameters defining each cell and are defined independent of the first and second distances, and wherein the parameters comprise at least one of, a location of the antenna, an antenna bearing defining a main power direction of the antenna, a half power beam width, a maximum serving radius, and a back serving radius; determining, by the controller, first and second intersection points of the first and second circles; and determining, by the controller, a cost function for the first intersection point and the second intersection point relative to the first and second cell models, wherein each cost function yields a cost function value; and selecting, by the controller, the first or the second intersection point indicative of a location of the mobile station based on which cost function value is a smaller value.
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29. An apparatus, comprising:
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a controller configured to define a first cell model having a first antenna and a second cell model having a second antenna, determine first and second distances from the first and second antennas, respectively, to a mobile station, define a first circle for the first cell model using the first distance as a radius of the first circle, the first circle having the first antenna as a center point, define a second circle for the second cell model using the second distance as the radius of the second circle, the second circle having the second antenna as a center point, wherein the first cell model and the second cell model are each based on parameters defining each cell and are defined independent of the first and second distances, and wherein the parameters comprise at least one of, an antenna bearing defining a main power direction of the antenna, a half power beam width, a maximum serving radius, and a back serving; and a location services node configured to determine first and second intersection points of the first and second circles, determine a cost function for the first intersection point and the second intersection point relative to the first and second cell models, wherein each cost function yields a cost function value, and select the first or the second intersection point indicative of a location of the mobile station based on which cost function value is a smaller value. - View Dependent Claims (31, 32, 33)
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30. An apparatus, comprising:
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means for defining a first cell model having a first antenna and a second cell model having a second antenna; means for determining first and second distances from the first and second antennas, respectively, to a mobile station; means for defining a first circle for the first cell model using the first distance as a radius of the first circle, the first circle having the first antenna as a center point; means for defining a second circle for the second cell model using the second distance as the radius of the second circle, the second circle having the second antenna as a center point, wherein the first cell model and the second cell model are each based on parameters defining each cell and are defined independent of the first and second distances, and wherein the parameters comprise at least one of, a location of the antenna, an antenna bearing defining a main power direction of the antenna, a half power beam width, a maximum serving radius, and a back serving radius; means for determining first and second intersection points of the first and second circles; means for determining a cost function for the first intersection point and the second intersection point relative to the first and second cell models, wherein each cost function yields a cost function value; and means for selecting the first or the second intersection point indicative of a location of the mobile station based on which cost function value is a smaller value.
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Specification