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Multicast service delivery over high throughput satellite in a Ka spot-beam network

  • US 9,577,741 B2
  • Filed: 06/04/2015
  • Issued: 02/21/2017
  • Est. Priority Date: 06/04/2015
  • Status: Active Grant
First Claim
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1. A satellite communication system comprising:

  • one or more satellite gateway earth stations; and

    a satellite configured to communicate with a plurality of terminals via a plurality of spot beams formed by the satellite, each of the plurality of terminals being arranged to receive communications via the satellite and a respective spot beam of the plurality of spot beams, wherein;

    the one or more satellite gateway earth stations is arranged to receive one or more multicast streams from an external network, andwhen a satellite gateway earth station of the one or more satellite gateway earth stations is configured to be in a static forwarding mode, the satellite gateway earth station is statically configured to replicate and forward each of the one or more multicast streams over one or more first respective outroute carriers of at least one first respective spot beam of the plurality of spot beams regardless of whether any terminals are arranged to actively receive any of the one or more multicast streams, andwhen the satellite gateway earth station is configured to be in a dynamic forwarding mode, the satellite gateway earth station is dynamically configured to replicate and forward ones of the one or more multicast streams over one or more second respective outroute carriers of at least one second respective spot beam of the plurality of spot beams only when at least one respective terminal is arranged to actively receive each of the ones of the one or more multicast streams over the one or more second respective outroute carriers of the at least one second respective spot beam of the plurality of spot beams.

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