Slotted mode decoder state metric initialization

Slotted mode decoder state metric initialization

  • CN 1,422,460 B
  • Filed: 03/30/2001
  • Issued: 09/07/2011
  • Est. Priority Date: 03/31/2000
  • Status: Active Grant
First Claim
Patent Images

1. method that the convolutional encoding data are deciphered, this method may further comprise the steps:

  • The received code symbols streams;

    Accumulate described coded identification, up to having received the full frame symbol;

    Determine whether the encoded symbol streams that receives is the encoded symbol streams of interrupting;

    If the encoded symbol streams that receives is the encoded symbol streams of interrupting, if so the possible state measurement that does not interrupt the described encoded symbol streams that receives and can provide is provided the finish node of grid chart in convolution decoder tolerance;

    Described full frame coded identification is offered described convolution decoder, and described convolution decoder uses described coded identification to continue the described grid chart of structure;

    In response to the described coded identification that receives, calculate the tolerance of each node on the described grid chart;

    In response to the described metric of each node on the grid chart that calculates, produce bit through decoding.

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