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System and method for multiple layer satellite communication

  • US 9,391,702 B2
  • Filed: 05/15/2013
  • Issued: 07/12/2016
  • Est. Priority Date: 05/15/2013
  • Status: Active Grant
First Claim
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1. A communication system, comprising:

  • a first constellation of satellites traveling in an inclined orbit and operable to communicate with earth-based user terminals over respective radio frequency (RF) links;

    a processor operable to monitor separation angles between beams of said first constellation of satellites and a GSO beam and maintain each of the separation angles by at least a selected number of degrees by temporarily tilting at least some satellites in the first constellation of satellites to move the beams of the respective RF links away from the GSO beam to avoid an interference with the GSO beam without deviating from the inclined orbit; and

    a second constellation of satellites traveling in an inclined orbit at a higher altitude than the first constellation and operable to communicate with selected satellites in said first constellation over respective optical communication links.

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