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Mobile computing device geographic location determination

  • US 8,693,454 B2
  • Filed: 02/14/2012
  • Issued: 04/08/2014
  • Est. Priority Date: 04/13/2006
  • Status: Active Grant
First Claim
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1. A method of estimating a location of a mobile device, the method comprising:

  • receiving a first message from a first mobile device comprising a first access point identifier associated with an access point used by the first mobile device and a first cellular tower identifier associated with a cellular tower used by the first mobile device, wherein the access point has an IP address;

    storing a relationship between the first access point identifier and the first cellular tower identifier based on the first message;

    receiving a second message from a second mobile device comprising a second access point identifier associated with the access point, the access point used by the second mobile device to access an IP-based network;

    determining that the access point is associated with the cell tower based at least in part upon the stored relationship; and

    ,determining a location of the cell tower;

    estimating the location of the second mobile device based at least in part on a location of the cell tower.

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