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Satellite-based programmable allocation of bandwidth for forward and return links

  • US 8,358,971 B2
  • Filed: 06/23/2003
  • Issued: 01/22/2013
  • Est. Priority Date: 07/23/2002
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving a filter parameter at a satellite in orbit;

    receiving an input signal at the satellite;

    programming a filter in the satellite to separate a plurality of sub-signals from the input signal based on the filter parameter;

    filtering the input signal into the plurality of sub-signals as programmed based on the filter parametertranslating the plurality of sub-signals into an output signal, wherein translating the plurality of sub-signals comprises;

    multiplying the first sub-signal by a first number to produce a first amplified signal;

    multiplying the second sub-signal by a second number to produce a second amplified signal, the second number being different from the first number; and

    adding the first amplified signal and the second amplified signal; and

    transmitting the output signal from the satellite;

    wherein;

    the input signal comprises an uplink from a plurality of earth stations to the satellite, the plurality of earth stations comprising a gateway and a user station;

    the output signal comprises a downlink from the satellite to the plurality of earth stations;

    andthe plurality of sub-signals comprise a first sub-signal and a second sub-signal, wherein the first sub-signal comprises a forward link from the gateway to the user station, and the second sub-signal comprises a return link from the user station to the gateway.

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