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Method and apparatus for transmission of variable rate digital data

  • US 5,581,575 A
  • Filed: 10/05/1995
  • Issued: 12/03/1996
  • Est. Priority Date: 11/01/1993
  • Status: Expired due to Term
First Claim
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1. An apparatus for transmitting a variable rate data packet of data symbols, said apparatus comprising:

  • repetition generator means for receiving said packet and when the number of said data symbols in said packet is less than a first value generating duplicates of said data symbols and combining said data symbols and said duplicates of said data symbols in said packet; and

    transmitter means for transmitting said packet from said repetition generator means, wherein when the number of data symbols in said packet equals said first value, transmitting said packet at a first energy level and when the number of data symbols in said packet is less than said first value and greater than a second value, transmitting said packet at a second energy level which is less than said first energy level, and when the number of data symbols in said packet is less than said second value gating ones of said data symbols and said duplicates of said data symbols and transmitting said packet at a third energy level.

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