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Position registration for cellular satellite communication systems

  • US 6,542,716 B1
  • Filed: 11/21/1996
  • Issued: 04/01/2003
  • Est. Priority Date: 01/11/1994
  • Status: Expired due to Term
First Claim
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1. A method for determining a position of a mobile radio telephone in a satellite communication system, comprising the steps of:

  • scanning a plurality of paging channels at said mobile radio telephone;

    measuring signal strength of said paging channels;

    selecting a paging channel with the strongest signal strength;

    decoding information broadcasted on said paging channel, wherein said information includes frequencies of paging channels and coordinates of surrounding spot beams;

    measuring signal strength of paging channels in said surrounding spot beams; and

    guantizing said measurements and using said measurements and said coordinates to determine an approximate position of said mobile radio telephone.

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