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System and method for estimating cell center position for cell ID based positioning

  • US 7,974,642 B2
  • Filed: 02/20/2007
  • Issued: 07/05/2011
  • Est. Priority Date: 09/10/2001
  • Status: Expired due to Fees
First Claim
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1. A method for estimating a cell location for a cell that provides wireless communication services to a plurality of mobile stations each mobile station having a Satellite Positioning System (“

  • SPS”

    ) receiver operating in a positioning system, the method comprising;

    obtaining a mobile station location for each of N mobile stations having a cell identifier that identifies the cell, each mobile station location being determined using the positioning system; and

    testing the mobile station locations to determine if the mobile stations are clustered by;

    determining a first estimated cell center location and a cell radius;

    defining a plurality of circles having respective radii less than the cell radius with respective centers at respectively different locations within the cell;

    determining if each of the plurality of circles defines an area containing a cluster of mobile station locations based on the number of mobile stations within each of the circles; and

    calculating a final estimated location of the cell center based on the determined locations of the plurality of circles.

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