Systems and methods for using a satellite positioning system to detect moved WLAN access points

  • US 8,022,877 B2
  • Filed: 07/16/2009
  • Issued: 09/20/2011
  • Est. Priority Date: 07/16/2009
  • Status: Active Grant
First Claim
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1. A method of using a WLAN and satellite enabled device is to detect WLAN access points (APs) that have moved, the method comprising:

  • detecting WLAN APs in range of the WLAN and satellite enabled device;

    accessing a reference database to obtain a reference location of each WLAN AP;

    obtaining satellite measurements from at least two satellites to provide a plurality of possible SPS location solutions of the device;

    calculating a distance between each reference WLAN AP location and the possible SPS location solutions; and

    if the distance between the reference WLAN AP location and the SPS location solutions is far, determining that the WLAN AP location in the reference database is not correct.

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