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Methods for interleaving and deinterleaving external code coding output codons and interleaving and deinterleaving devices

An output code and coding technology, applied in the field of communication, can solve the problems of high error leveling, poor bit error rate performance, no uniform processing of residual errors in inner code decoding, etc., and achieve the effect of reducing error leveling.

Inactive Publication Date: 2011-08-03
滨海县星光化工有限公司
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Problems solved by technology

[0003] At present, the specific methods for interleaving the output code of the outer code encoding and the inner code include row-column interleaving and convolutional interleaving. These two methods of interleaving the output codeword of the outer code encoding do not evenly process the decoding residual errors of the inner code. Causes a high error floor and poor bit error rate performance

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  • Methods for interleaving and deinterleaving external code coding output codons and interleaving and deinterleaving devices
  • Methods for interleaving and deinterleaving external code coding output codons and interleaving and deinterleaving devices
  • Methods for interleaving and deinterleaving external code coding output codons and interleaving and deinterleaving devices

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] figure 1 It is a flowchart of a method for outputting a codeword by interleaving outer code encoding according to Embodiment 1 of the present invention. Such as figure 1 As shown, the method includes the following steps.

[0033] Step 101: Obtain a first matrix whose number of rows is the number of output codes of the outer code encoding...

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Abstract

The invention provides a method for interleaving external code coding output codons, which comprises the steps of: obtaining a first matrix according to a codon array of the external code coding output codons, wherein the line number of the first matrix is the number of the external code coding output codons and the row number is the codon length of the external code coding output codons; dividing the first matrix into at least four sub matrixes; and carrying out line-row vector transposition combination on at least two sub matrixes in the at least four sub matrixes to obtain input codons of internal code coding. The invention also provides a method for deinterleaving external code coding output codons and an interleaving device and a deinterleaving device. By adopting the methods for interleaving and deinterleaving external code coding output codons and the interleaving and the deinterleaving devices, external code coding and internal code coding are subjected to parallel interleaving cascade, and therefore, random errors and / or longer outburst errors of the internal code coding are uniformly distributed in the external code coding output codons, and an error flat bed of cascade codes is lowered.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a method for interleaving outer coded coded output codewords and an interleaver, and a method for deinterleaving outer coded coded outputted codewords and a deinterleaver. Background technique [0002] In wireless and mobile communication, optical communication, deep space communication, radio and television and other communication fields, high speed and reliability of data transmission are two essential requirements of communication, and channel coding and decoding technology is an essential way to realize this requirement. At present, most communication systems obtain concatenated codes by interleaving outer codes and inner codes when performing channel coding and decoding, and use concatenated codes as channel error correction codes. Wherein, the interleaving process is completed by an interleaver, and the specific method of interleaving is as follows: th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
Inventor 周亮文红喻凡常德远肖治宇赵羽
Owner 滨海县星光化工有限公司
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