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Geo-fence

  • US 8,229,473 B1
  • Filed: 06/02/2011
  • Issued: 07/24/2012
  • Est. Priority Date: 06/02/2011
  • Status: Expired due to Fees
First Claim
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1. A method of detecting when a mobile communication device exits a defined geographical area wherein said defined geographical area includes one or more cells, said method comprising:

  • identifying a cell that said mobile communication device is in communication with;

    determining if said identified cell is a boundary cell, wherein a boundary cell is a cell in which a boundary of said defined geographical area is within said cell;

    determining a location of said mobile communication device if said identified cell is said boundary cell; and

    comparing said location of said mobile communication device with said boundary of said defined geographical area to detect if said mobile communication device has exited said defined geographical area.

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