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Wireless relay apparatus, wireless receiving apparatus, and decoding method

  • US 9,385,836 B2
  • Filed: 11/26/2014
  • Issued: 07/05/2016
  • Est. Priority Date: 10/24/2008
  • Status: Expired due to Fees
First Claim
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1. A wireless apparatus comprising:

  • a first decoder to perform a first decoding process of calculating a first a posteriori value using a first a priori value and a first frame transmitted from a first apparatus, and output a hard decision value of the first a posteriori value and a first external value;

    a second decoder to perform a second decoding process of calculating a second a posteriori value using a second a priori value and a second frame transmitted from a second apparatus, and output a hard decision value of the second a posteriori value and a second external value, the second apparatus having received the first frame, the second frame containing re-encoded data of the first frame containing an error;

    an error rate estimator to estimate an error rate of one of the first frame or the second frame;

    a first a priori value calculator to calculate the second a priori value by correcting the first external value based on the error rate; and

    a second a priori value calculator to calculate the first a priori value by correcting the second external value based on the error rate.

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