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Wireless base station location estimation

  • US 8,219,116 B1
  • Filed: 11/26/2008
  • Issued: 07/10/2012
  • Est. Priority Date: 11/27/2007
  • Status: Active Grant
First Claim
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1. A method for identifying a location of a wireless base station, comprising:

  • obtaining data samples from one or more mobile devices;

    acquiring signal strength information in the data samples;

    analyzing timing information in the data samples to determine at least one of a synchronization offset and a value of distance;

    plotting one or more of the data samples on a multi-dimensional plane;

    computing a centroid of the data samples;

    computing a first curve based on a location of the wireless base station;

    computing a second curve based on the data samples obtained from the one or more mobile devices;

    determining a phase shift between the first curve and the second curve;

    computing an angle between a location of the wireless base station and the centroid using at least the phase shift;

    determining a direction of the wireless base station from one of the mobile devices using the phase shift and the angle; and

    outputting a signal to the one or more mobile devices, the signal corresponding to the location of the wireless base station.

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