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Burst signal transmission from an earth station to an orbiting satellite with a short guard time

  • US 5,991,598 A
  • Filed: 08/11/1997
  • Issued: 11/23/1999
  • Est. Priority Date: 06/30/1993
  • Status: Expired due to Fees
First Claim
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1. A burst signal transmitting method of transmitting a burst signal from an earth station of a satellite communication network including a predetermined number of orbiting satellites, comprising the steps of;

  • beam transmitting from each of said satellites M spot beams with M identification codes superposed on said spot beams, respectively, where M represents an integer which is equal to at least two, said identification codes being individually specific to said spot beams and for identification and recognition of said spot beams;

    beam receiving in said earth station one of said spot beams as a received beam at a reception time instant from one of said satellites;

    beam recognizing said one of said spot beams by one of said identification codes that is superposed on said received beam; and

    a signal transmitting said burst signal to said one of said satellites at a transmission time instant following said reception time instant by an offset amount selected from M offset amounts predetermined for said identification codes, respectively, said offset amount being selected by said earth station in response to said one of said identification codes.

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