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Systems and methods with different utilization of satellite frequency bands by a space-based network and an ancillary terrestrial network

  • US 8,055,257 B2
  • Filed: 10/30/2009
  • Issued: 11/08/2011
  • Est. Priority Date: 04/12/2004
  • Status: Active Grant
First Claim
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1. A method of operating a communications system including a space-based network comprising a satellite and a terrestrial network comprising a base station, the method comprising:

  • receiving communications at the base station from a radioterminal using frequencies from a first satellite frequency band;

    communicating from the base station to the radioterminal using frequencies from a second satellite frequency band; and

    communicating directly between the satellite and the radioterminal using at least some of the frequencies from the first satellite frequency band and/or at least some of the frequencies from the second satellite frequency band,wherein the first satellite frequency band comprises a first one of an L-band of frequencies and an S-band of frequencies and wherein the second satellite frequency band comprises a second one of the L-band of frequencies and the S-band of frequencies,wherein the communications between the satellite and the radioterminal do not use frequencies from the first satellite frequency band.

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