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DECODING METHOD FOR CONVOLUTIONALLY CODED SIGNAL

  • US 20160204803A1
  • Filed: 01/11/2016
  • Published: 07/14/2016
  • Est. Priority Date: 01/12/2015
  • Status: Active Grant
First Claim
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1. A decoding method for a convolutionally coded signal, the convolutionally coded signal comprising a trellis, the decoding method comprising:

  • determining a plurality of first sub-trellises from the trellis, and determining a predetermined step from each of the first sub-trellises;

    decoding the first sub-trellises to generate a plurality of state metrics;

    storing a plurality of state metrics prior and subsequent to the predetermined steps as a first record;

    determining a plurality of second sub-trellises from the trellis; and

    decoding the second sub-trellises by utilizing the first record as an initial condition of the second sub-trellises.

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