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Systems and methods for terrestrial reuse of cellular satellite frequency spectrum in a time-division duplex mode

  • US 8,285,278 B2
  • Filed: 08/13/2009
  • Issued: 10/09/2012
  • Est. Priority Date: 09/14/2001
  • Status: Expired due to Term
First Claim
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1. A radiotelephone communications method comprising:

  • transmitting wireless communications from a terrestrial wireless network directly to a radiotelephone over a first satellite radiotelephone frequency and receiving wireless communications directly from the radiotelephone at the terrestrial wireless network over the first satellite radiotelephone frequency; and

    transmitting wireless communications from the terrestrial wireless network directly to the radiotelephone and receiving wireless communications directly from the radiotelephone at the terrestrial wireless network over a second satellite radiotelephone frequency.

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