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Method and apparatus for calculating a position estimate of a mobile station using network information

  • US 9,020,539 B2
  • Filed: 11/24/2004
  • Issued: 04/28/2015
  • Est. Priority Date: 11/26/2003
  • Status: Active Grant
First Claim
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1. A method for calculating an estimate of a position of a mobile station, comprising:

  • collecting in a mobile station, position estimate information (PEI) transmitted by a plurality of location nodes in one or more PEI messages carried on at least one of a common channel or a dedicated channel, wherein the PEI in the one or more PEI messages includes a location node identification and longitude and latitude information of the location node of the plurality of location nodes;

    generating in the mobile station, PEI parameters based upon the PEI, wherein the PEI parameters include the longitude and latitude information of the location node of the plurality of location nodes from which the location node of the plurality of location nodes can be uniquely located or identified; and

    sending the PEI parameters from the mobile station to a position determination entity, wherein the PEI parameters permit calculation of a position estimate for the mobile station.

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