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Radio communication system using synchronous frequency hopping transmissions

  • US 4,850,036 A
  • Filed: 08/21/1987
  • Issued: 07/18/1989
  • Est. Priority Date: 08/21/1987
  • Status: Expired due to Term
First Claim
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1. A radio communication system including a control unit which transmits information to and receives information from each of a plurality of stations using frequencies selected from a group of frequencies using a frequency-hopping sequence, said system comprisingat said control unitmeans for transmitting to each of said plurality of stations a first control message identifying both a first unique starting frequency from a first frequency group at which to start receiving from said control unit and a second unique starting frequency from said first frequency group at which to start transmitting to said control unit and further identifying at each of said plurality of stations the same frequency-hopping sequence to ensure that no two stations of said plurality of stations use the same frequency at the same time for transmissions to and receptions from said control unit,at each of said plurality of stationsmeans responsive to said control message for identifying the second and first unique starting frequencies, respectively, for transmitting and receiving at each of said plurality of stations, and for establishing said frequency-hopping sequence to select transmission and reception frequencies thereat.

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