SYSTEMS AND METHODS FOR MONITORING SELECTED TERRESTRIALLY USED SATELLITE FREQUENCY SIGNALS TO REDUCE POTENTIAL INTERFERENCE

  • US 20090029696A1
  • Filed: 09/26/2008
  • Published: 01/29/2009
  • Est. Priority Date: 09/14/2001
  • Status: Active Grant
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First Claim
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1. A satellite radiotelephone system comprising:

  • a space-based component that is configured to receive wireless communications from a plurality of first radiotelephones in a satellite footprint over a satellite radiotelephone frequency band;

    an ancillary terrestrial network that is configured to receive/transmit wireless communications from/to a plurality of second radiotelephones in the satellite footprint over the satellite radiotelephone frequency band, the space-based component also receiving the wireless communications from the second radiotelephones and/or the ancillary terrestrial network in the satellite footprint over the satellite radiotelephone frequency band as interference along with the wireless communications that are received from the first radiotelephones in the satellite footprint over the satellite radiotelephone frequency band; and

    an interference reducer that is responsive to the space-based component and to the ancillary terrestrial network, and that is configured to reduce the interference in the wireless communications that are received by the space-based component from the first radiotelephones in the satellite footprint over the satellite radiotelephone frequency band, using the wireless communications that are received by the ancillary terrestrial network from selected ones, but less than all, of the second radiotelephones in the satellite footprint over the satellite radiotelephone frequency band and/or the wireless communications that are transmitted by the ancillary terrestrial network to selected ones, but less than all, of the second radiotelephones.

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