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Location estimation of wireless terminals using indoor radio frequency models

  • US 20050124354A1
  • Filed: 12/04/2003
  • Published: 06/09/2005
  • Est. Priority Date: 12/04/2003
  • Status: Abandoned Application
First Claim
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1. A method for estimating a location of a wireless terminal, said method comprising:

  • defining a rasterized footprint of a building, wherein said rasterized footprint comprises a plurality of rasters, and wherein said rasterized footprint has a boundary and an interior; and

    estimating signal attenuation due to said building, wherein the estimate of signal attenuation is based on signal losses at a first group of said rasters, wherein said rasters in said first group define said boundary of said rasterized footprint.

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