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GPS assistance messages in cellular communications networks and methods therefor

  • US 20020168985A1
  • Filed: 02/16/2001
  • Published: 11/14/2002
  • Est. Priority Date: 02/16/2001
  • Status: Active Grant
First Claim
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1. A method for updating a GPS ephemeris data issue identifier transmitted to a GPS enabled mobile station in a cellular communications network, comprising:

  • receiving GPS ephemeris data at a reference node in communication with a cellular communications network;

    generating an assistance message including GPS ephemeris data and other parameters;

    generating a GPS ephemeris data issue identifier;

    receiving updated GPS ephemeris data and other updated parameters;

    updating the GPS ephemeris data issue identifier only when the GPS ephemeris data has been updated.

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