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Ubiquitous mobile subscriber station

  • US 6,408,180 B1
  • Filed: 08/24/1999
  • Issued: 06/18/2002
  • Est. Priority Date: 03/06/1992
  • Status: Expired due to Term
First Claim
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1. A cellular radio communication apparatus, operable both as a non-terrestrial cellular mobile subscriber station and a ground-based cellular mobile subscriber station, comprising:

  • first means for generating a radio frequency communication signal at one of said radio frequencies allocated for ground-based cellular mobile subscriber stations and in a mode compatible with ground-based cellular communications to communicate with a ground-based cell of a cellular communication system;

    second means for generating a radio frequency communication signal at one of said radio frequencies allocated for ground-based cellular mobile subscriber stations and in a mode compatible with non-terrestrial cellular communications to communicate with a non-terrestrial cell of a cellular communication system;

    means for determining a present location of said cellular radio communication apparatus;

    means, responsive to said means for determining, for activating at least one of said first means for generating and said second means for generating to communicate with a corresponding cell of a cellular communication system; and

    means, responsive to receipt of subscriber data, for inserting said subscriber data into said radio frequency communication signal to create a composite radio frequency signal.

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