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Method of improving efficiency of radio channel usage in overlapping coverage areas

  • US 5,914,944 A
  • Filed: 12/04/1996
  • Issued: 06/22/1999
  • Est. Priority Date: 12/07/1995
  • Status: Expired due to Term
First Claim
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1. A method of sending data over a wireless communications channel, said communications channel being common to primary and secondary communciations systems that have at least partially overlapping areas of coverage, said primary system having a low duty cycle and transmitting random bursts having a characteristic first duration, said method comprising transmitting packets in bursts on said secondary system, said bursts on said second system having a duration at least equal to three times said first duration and said packets containing forward error correction codes to permit data contained therein to be recovered in the event of a collision with a burst on the primary system, and said bursts on the secondary system having an intensity sufficiently below the intensity of the bursts on the primary system to avoid interference therewith.

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