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Random access burst transmission scheme

  • US 7,359,705 B2
  • Filed: 03/08/2000
  • Issued: 04/15/2008
  • Est. Priority Date: 03/10/1999
  • Status: Expired due to Term
First Claim
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1. A method for transmitting random access bursts in an apparatus for transmitting and receiving signals in a wireless telecommunication system, comprisingtransmitting a first random access burst with a first priority class,transmitting a second random access burst with a second priority class, said second priority class lower than said first priority class,deciding if first acknowledgement information confirming a successful transmission of said first random access burst has been received,deciding if second acknowledgement information confirming a successful transmission of said second random access burst has been received,randomly choosing a first time point for an attempt to retransmit said first random access burst from within a first interval if no first acknowledgement information has been received,randomly choosing a second time point for an attempt to retransmit said second random access burst from within a second interval if no second acknowledgement information has been received,setting the length of said first interval depending on at least two parameters, whereby a first parameter indicates the number of unsuccessful attempts to transmit the first random access burst and a second parameter indicates the first priority class, andsetting the length of said second interval depending on at least two parameters, whereby a third parameter indicates the number of unsuccessful attempts to transmit the second random access burst and a fourth parameter indicates the second priority class,whereby said second and fourth parameters are chosen so that said first interval is set shorter than said second interval.

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