Systems and methods for locating communication terminals in cellular networks
First Claim
Patent Images
1. A method, comprising:
- in a wireless communication network, determining respective distances between a given base transceiver station and one or more other base transceiver stations;
calculating, responsively to the distances, an effective location of the given base transceiver station that is different from a physical location of the given base transceiver station; and
reporting the effective location as an estimated location of a communication terminal communicating with the given base transceiver station,wherein calculating the effective location comprises determining an average of the distances and calculating the effective location in response to the average, andwherein the given base transceiver station is operative in a sector of a circle, and wherein calculating the effective location comprises determining a bisector of the sector and positioning the effective location to lie on the bisector.
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Abstract
Methods and systems in a wireless communication network for determining respective distances between a given base transceiver station and one or more other base transceiver stations. An effective location of the given base transceiver station may be calculated that is different from its physical location. The effective location may be use to report an estimated location of a communication terminal communicating with the given base transceiver station. The estimated location may be provided in networks that support both a hard handover or soft handover of the communication terminal between the given base transceiver station and the one or more other base transceiver stations.
7 Citations
14 Claims
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1. A method, comprising:
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in a wireless communication network, determining respective distances between a given base transceiver station and one or more other base transceiver stations; calculating, responsively to the distances, an effective location of the given base transceiver station that is different from a physical location of the given base transceiver station; and reporting the effective location as an estimated location of a communication terminal communicating with the given base transceiver station, wherein calculating the effective location comprises determining an average of the distances and calculating the effective location in response to the average, and wherein the given base transceiver station is operative in a sector of a circle, and wherein calculating the effective location comprises determining a bisector of the sector and positioning the effective location to lie on the bisector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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in a wireless communication network, determining respective distances between a given base transceiver station and one or more other base transceiver stations; calculating, responsively to the distances, an effective location of the given base transceiver station that is different from a physical location of the given base transceiver station; and reporting the effective location as an estimated location of a communication terminal communicating with the given base transceiver station, wherein the given base transceiver station is operative in a coverage region, and comprising reporting an expected terminal operating region as a sub-region of the coverage region. - View Dependent Claims (10, 11)
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12. A method, comprising:
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in a wireless communication network, determining respective distances between a given base transceiver station and one or more other base transceiver stations; calculating, responsively to the distances, an effective location of the given base transceiver station that is different from a physical location of the given base transceiver station; and reporting the effective location as an estimated location of a communication terminal communicating with the given base transceiver station, wherein the wireless communication network supports a soft handover of the communication terminal between the given base transceiver station and the one or more other base transceiver stations, and wherein the given base transceiver station comprises two or more base transceiver stations communicating simultaneously with the communication terminal, each of the two or more base transceiver stations having respective effective locations different from respective physical locations thereof, and comprising reporting the estimated location of the communication terminal as a function of the respective effective locations. - View Dependent Claims (13, 14)
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Specification