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Satellite telephone interference avoidance system

  • US 6,023,463 A
  • Filed: 11/23/1998
  • Issued: 02/08/2000
  • Est. Priority Date: 02/06/1997
  • Status: Expired due to Fees
First Claim
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1. A satellite communications system, comprising:

  • a plurality of measurement terminals that are spatially distributed within a portion of a terrestrial coverage area of the satellite communications system, said measurement terminals measuring, over a band of frequencies allocated to the satellite communications system, an amount of interference that is due, at least in part, to another communications system that operates in a frequency band that overlaps at least a portion the band of frequencies, said plurality of measurement terminals each comprising a transmitter for transmitting an indication of the measured interference; and

    a controller coupled to a receiver for receiving the transmitted indications and comprising a memory for storing the received indications of the measured interference, said controller operating to identify frequency channels for use by a ground station that serves satellite user terminals within the portion of the terrestrial coverage area, the frequency channels being identified in such a manner so as to reduce an amount of satellite power required to provide a desired level of service quality to the satellite user terminals serviced by the at least one ground station.

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