A ladder code decoding method and ladder code decoding device

A decoding method and a technology of a decoding device, which are applied in the field of optical communication FEC, can solve problems such as large decoding delay, high implementation complexity, and poor decoding performance, and achieve the effects of reducing time delay, improving decoding performance, and reducing implementation complexity

Active Publication Date: 2021-03-16
ZTE CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a ladder code decoding method and a ladder code decoding device, which are used to solve the problems of high implementation complexity, high power consumption, large decoding delay and poor decoding performance of the hardware circuit used for FEC code decoding in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A ladder code decoding method and ladder code decoding device
  • A ladder code decoding method and ladder code decoding device
  • A ladder code decoding method and ladder code decoding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] An exemplary embodiment of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be restricted herein. Instead, it is provided to provide more thoroughly understood the present disclosure, and can communicate the scope of the disclosure to those skilled in the art.

[0028] figure 1 A flow diagram of the step code decoding method in the first embodiment of the present invention, such as figure 1 The step code decoding method shown in Example 1 shown in the method shown in the present invention, including:

[0029] Step 1, obtain the length L of the sliding window, in the previously reintegrating order, in the received sub-code block, continuously acquired the subcam block as the Sliding window as the sliding window Where l is the integer....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A staircase code decoding method, comprising: step 1, continuously obtaining L subcode blocks to act as subcode blocks to be decoded in a sliding window, L being a positive integer; step 2, grouping the subcode blocks to be decoded to obtain groups to be decoded, decoding according to a sequence from back to front, sequentially obtaining update subcode blocks according to decoding results, repeatedly decoding and updating the subcode blocks to be decoded in this manner k times, and outputting the first M update subcode blocks to act as the decoding results, wherein K is a positive integer greater than or equal to 1, and M is a positive integer less than L; step 3, sliding the sliding window backwards by the length of M subcode blocks, recombining the update subcode blocks remaining in the sliding window with the subcode blocks sliding into the sliding window to act as the subcode blocks to be decoded in the sliding window, and returning to step 2, until the decoding results of all the subcode blocks are outputted. The present invention reduces hardware circuit implementation complexity, and shortens decoding time delays.

Description

Technical field [0001] The present invention relates to the field of optical communication FEC technology, and more particularly to a step code decoding method and a stepped code decoding device. Background technique [0002] Forward Error Correction (FEC) technology is currently widely used in optical communication systems to improve the error rate performance of the system, improve the reliability of system communication. Among them, the ladder code is a new type of FEC pattern, which combines the idea of ​​convolutional code and the campaign, and the coding method of the step code is similar to the coding method of the multiplier code. At the same time, between the two sub-block blocks There is a strong correlation, that is, the two adjacent step codes can be combined into a complete BCH block unit, so the entire step size can be seen as a chain structure that tends to endless. In the decoding mode of the step code, each decoding output of a step codes is completed, it is nece...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L1/00H03M13/29
CPCH03M13/2909H03M13/2939H04L1/005H04L1/0056H03M13/29H04L1/00
Inventor殷俊杰蔡轶王卫明孙二坤
OwnerZTE CORP