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Method and apparatus for near-optimal scaling of log-likelihood ratio (LLR) computation in turbo decoding for hybrid automatic repeat request (ARQ)

  • US 7,376,209 B2
  • Filed: 06/06/2003
  • Issued: 05/20/2008
  • Est. Priority Date: 06/06/2003
  • Status: Expired due to Fees
First Claim
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1. A method for decoding data in a packet comprising one or more subpackets, the method comprising:

  • determining a subpacket identification number for a received subpacket of the packet, the subpacket identification number associated with a scale factor which results in a performance measure that is closest to an expected performance measure;

    applying the scale factor to demodulated data symbols in the packet to generate scaled log-likelihood ratios; and

    decoding the scaled log-likelihood ratios.

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