Procedure to increase position location availability
First Claim
Patent Images
1. A method of obtaining a position of a mobile station, comprising:
- determining the position of the mobile station using a first scheme of position determination;
if the determining does not yield an acceptable position result, repeating said determining using at least one further scheme of position determination different from said first scheme in at least some repetitions until (i) a repetition returns an acceptable position result or (ii) a threshold number of available position determining schemes have been used; and
determining whether to reorder an order in which the first scheme of position determination and the at least one further scheme of position determination are attempted based on a result from each of the position determination schemes.
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Accused Products
Abstract
A device, method and system are provide which permits the methodology used to make the position determination to change dynamically in connection with achieving a position fix of a desired accuracy.
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Citations
28 Claims
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1. A method of obtaining a position of a mobile station, comprising:
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determining the position of the mobile station using a first scheme of position determination; if the determining does not yield an acceptable position result, repeating said determining using at least one further scheme of position determination different from said first scheme in at least some repetitions until (i) a repetition returns an acceptable position result or (ii) a threshold number of available position determining schemes have been used; and determining whether to reorder an order in which the first scheme of position determination and the at least one further scheme of position determination are attempted based on a result from each of the position determination schemes. - View Dependent Claims (2, 3, 4)
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5. A method of obtaining a position of a mobile station during a positioning procedure, comprising:
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commencing a position calculation for the mobile station using N different schemes of position determination; determining position results derived via a threshold number of the N different schemes of position determination are unacceptable; and selecting one of the unacceptable position results as the position of the mobile station. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A method of obtaining a position of a mobile station comprising:
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(a) determining the position of the mobile station using a first scheme of position determination selected from schemes consisting of GPS, trilateration, server assisted GPS, cell identification, enhanced signal strength, angle of arrival, time difference of arrival, forward link trilateration, advanced forward link trilateration, fingerprinting, and combinations thereof; (b) determining whether the position of the mobile station using said first scheme yields an acceptable position; and (c) repeating determining the position of the mobile station, only if the first scheme does not yield an acceptable position result, using at least one further scheme of position determination different from said first scheme in at least some repetitions until (i) a repetition returns an acceptable position result or (ii) all available position-determining schemes have been used. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus configured to obtain a position of a mobile station, comprising:
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means for determining the position of the mobile station using a first scheme of position determination; means for repeating, if the means for determining the position does not yield an acceptable position result, repeating said determining using at least one further scheme of position determination different from said first scheme in at least some repetitions until (i) a repetition returns an acceptable position result or (ii) a threshold number of available position determining schemes have been used; and means for determining whether to reorder an order in which the first scheme of position determination and the at least one further scheme of position determination are attempted based on a result from each of the position determination schemes.
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21. An apparatus configured to obtain a position of a mobile station during a positioning procedure, comprising:
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means for commencing a position calculation for the mobile station using N different schemes of position determination; means for determining position results derived via a threshold number of the N different schemes of position determination are unacceptable; and means for selecting one of the unacceptable position results as the position of the mobile station.
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22. An apparatus configure to obtain a position of a mobile station comprising:
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means for determining the position of the mobile station using a first scheme of position determination selected from schemes consisting of GPS, trilateration, server assisted GPS, cell identification, enhanced signal strength, angle of arrival, time difference of arrival, forward link trilateration, advanced forward link trilateration, fingerprinting, and combinations thereof; means for determining whether the position of the mobile station using said first scheme yields an acceptable position; and means for repeating determining the position of the mobile station, only if the first scheme does not yield an acceptable position result, using at least one further scheme of position determination different from said first scheme in at least some repetitions until (i) a repetition returns an acceptable position result or (ii) all available position-determining schemes have been used.
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23. An apparatus configured to obtain a position of a mobile station, comprising:
a processor configured to; determine the position of the mobile station using a first scheme of position determination; repeat, if the first scheme of position determination does not yield an acceptable position result, repeating said determining using at least one further scheme of position determination different from said first scheme in at least some repetitions until (i) a repetition returns an acceptable position result or (ii) a threshold number of available position determining schemes have been used; and determine whether to reorder an order in which the first scheme of position determination and the at least one further scheme of position determination are attempted based on a result from each of the position determination schemes.
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24. An apparatus configured to obtain a position of a mobile station during a positioning procedure, comprising:
a processor configured to; commence a position calculation for the mobile station using N different schemes of position determination; determine position results derived via a threshold number of the N different schemes of position determination are unacceptable; and select one of the unacceptable position results as the position of the mobile station.
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25. An apparatus configure to obtain a position of a mobile station comprising:
a processor configured to; determine the position of the mobile station using a first scheme of position determination selected from schemes consisting of GPS, trilateration, server assisted GPS, cell identification, enhanced signal strength, angle of arrival, time difference of arrival, forward link trilateration, advanced forward link trilateration, fingerprinting, and combinations thereof; determine whether the position of the mobile station using said first scheme yields an acceptable position; and repeat determining the position of the mobile station, only if the first scheme does not yield an acceptable position result, using at least one further scheme of position determination different from said first scheme in at least some repetitions until (i) a repetition returns an acceptable position result or (ii) all available position-determining schemes have been used.
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26. A non-transitory computer-readable medium containing instructions stored thereon, which, when executed by an apparatus configured to obtain a position of a mobile station, cause the apparatus to perform operations, the instructions comprising:
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at least one instruction to determine the position of the mobile station using a first scheme of position determination; at least one instruction to repeat, if the first scheme of position determination does not yield an acceptable position result, repeating said determining using at least one further scheme of position determination different from said first scheme in at least some repetitions until (i) a repetition returns an acceptable position result or (ii) a threshold number of available position determining schemes have been used; and at least one instruction to determine whether to reorder an order in which the first scheme of position determination and the at least one further scheme of position determination are attempted based on a result from each of the position determination schemes.
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27. A non-transitory computer-readable medium containing instructions stored thereon, which, when executed by an apparatus configured to obtain a position of a mobile station during a positioning procedure, cause the apparatus to perform operations, the instructions comprising:
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at least one instruction to commence a position calculation for the mobile station using N different schemes of position determination; at least one instruction to determine position results derived via a threshold number of the N different schemes of position determination are unacceptable; and at least one instruction to select one of the unacceptable position results as the position of the mobile station.
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28. A non-transitory computer-readable medium containing instructions stored thereon, which, when executed by an apparatus configured to obtain a position of a mobile station, cause the apparatus to perform operations, the instructions comprising:
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at least one instruction to determine the position of the mobile station using a first scheme of position determination selected from schemes consisting of GPS, trilateration, server assisted GPS, cell identification, enhanced signal strength, angle of arrival, time difference of arrival, forward link trilateration, advanced forward link trilateration, fingerprinting, and combinations thereof; at least one instruction to determine whether the position of the mobile station using said first scheme yields an acceptable position; and at least one instruction to repeat determining the position of the mobile station, only if the first scheme does not yield an acceptable position result, using at least one further scheme of position determination different from said first scheme in at least some repetitions until (i) a repetition returns an acceptable position result or (ii) all available position-determining schemes have been used.
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Specification