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Location Based Handoff for Mobile Devices

  • US 20080242305A1
  • Filed: 03/30/2005
  • Published: 10/02/2008
  • Est. Priority Date: 04/06/2004
  • Status: Active Grant
First Claim
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1. A communications system comprising:

  • a plurality of mobile wireless units located within a defined space of a wireless local area network;

    a plurality of access points disposed at known locations in the defined space, each access point operating at a dedicated frequency;

    a means for tracking movement of at least one mobile device within the defined space including;

    a means for scanning identified scanning frequencies of nearby access points to measure actual signal strengths between the at least one mobile device and each of the nearby access points, anda means for calculating at least a location of the at least one mobile device by comparing the actual signal strengths with a map of relative signal strengths at predefined locations in the defined space, anda means for assigning the nearby access points with strongest signals to the at least one mobile device based on its location and the map of relative strengths in the defined space.

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