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Method, system and apparatus for locating a mobile communications device

  • US 8,023,965 B2
  • Filed: 05/09/2008
  • Issued: 09/20/2011
  • Est. Priority Date: 05/09/2008
  • Status: Active Grant
First Claim
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1. A method of locating a mobile communication device, comprising,receiving a data set comprising strengths of signals received at the mobile communication device from a plurality of wireless access points, said data set further comprising identifiers of wireless access points from which each said signal was received;

  • determining a scaling factor, wherein said determining said scaling factor is based on an antenna strength of a survey device used to collect said record of signal strengths compared to an antenna strength of the mobile communications device;

    receiving said scaling factor in conjunction with said data set;

    determining scaled signal strengths from said strengths of signals by scaling said signal strengths by said scaling factor;

    comparing said scaled signal strengths with a record of signal strengths of wireless access points at given locations; and

    determining a location of the mobile communication device based on said comparing.

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