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Low-density parity check code transmitting method and device

A low-density parity and transmission method technology is applied in the field of low-density parity-check code transmission methods and devices, and can solve problems such as weak ability to resist burst errors.

Active Publication Date: 2018-05-08
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure is susceptible to burst errors (such as continuous fading of multiple symbols in a correlated fading channel), and is weak against burst errors

Method used

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  • Low-density parity check code transmitting method and device

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Embodiment Construction

[0082] Embodiments of the present application provide a method and device for transmitting low-density parity-check codes, which are used to improve the burst error resistance capability of LDPC transmission.

[0083] The embodiment of the present application takes the transmission of incrementally redundant LDPC as an example for illustration, but the technical solution provided by the embodiment of the present application is not limited to the transmission of incrementally redundant LDPC, and can be applied to the transmission of all types of LDPC.

[0084] The embodiment of the present application proposes an incremental redundancy LDPC transmission scheme against burst errors, which can improve the burst error resistance capability of the incremental redundancy LDPC on the basis of maintaining the original advantages of the incremental redundancy LDPC. Wherein, the "burst error" refers to "sequential errors", that is, transmission errors are generated by consecutive multipl...

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Abstract

The invention discloses a low-density parity check code transmitting method and device used for improving burst error preventing capability of an LDPC. The method provided by the invention includes that an interleaver changes a bit stream sequence of the LDPC according to a preset rule and outputs the LDPC subjected to bit stream sequence change to a modulator; the modulator modulates the LDPC subjected to bit stream sequence change and then sends to a receiving terminal through a channel.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for transmitting low-density parity-check codes. Background technique [0002] As 4G enters the stage of large-scale commercial use, the future-oriented fifth-generation mobile communication (5G) has become a global research and development hotspot. The current channel coding parameters of the 3rd Generation Partnership Project (3GPP) for enhanced mobile broadband (eMBB) scenarios in 5G are: [0003] Table 1. Channel coding parameters for eMBB scenarios [0004] [0005] Incrementally redundant low density parity check code (Low Density Parity Check Code, LDPC) has the advantages of excellent performance, wide coverage of code length and code rate, high degree of multiplexing, easy hardware implementation, and can be directly coded by parity check matrix. It is one of the candidate codes of 5G and has been discussed and researched i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0041H04L1/0045H04L1/0063H04L1/0068H04L1/0071H04L1/0057H03M13/1102H04L1/0058H03M13/2906H03M13/255H04L27/2627H04L1/0009
Inventor 穆锡金王加庆白宝明孙韶辉
Owner DATANG MOBILE COMM EQUIP CO LTD