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METHOD FOR AMBIGUITY RESOLUTION IN LOCATION DETERMINATION

  • US 20100190512A1
  • Filed: 04/05/2010
  • Published: 07/29/2010
  • Est. Priority Date: 11/17/2004
  • Status: Abandoned Application
First Claim
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1. A method for resolving ambiguity in location determination with a plurality of ambiguous location determination solutions for a mobile station using an order of received power levels of a plurality of ranging signals from base stations in a cellular network, the method comprising:

  • receiving the plurality of ranging signals at the mobile station;

    ranking the plurality of ranging signals based on the order of received power levels from strongest to weakest;

    ranking the plurality of ranging signals based on an expected order of received power levels corresponding to each of the plurality of ambiguous location determination solutions;

    comparing the ranking of the ranging signals based on the order of received power levels and based on the expected order of received power levels corresponding to each of the plurality of ambiguous location determination solutions; and

    determining a final location determination solution based on a result of comparing the rankings of the ranging signals.

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