Communication method based on LDPC code and communication equipment

A technology of LDPC codes and communication methods, applied in digital transmission systems, electrical components, error prevention, etc., can solve the problems of slow decoding of LDPC codewords, and achieve the goals of avoiding iterative operations, improving decoding efficiency, and improving iteration efficiency Effect

Active Publication Date: 2018-07-10
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The LDPC codeword sequence obtained by the traditional encoding method at the sending end will slow down the decoding speed of the punctured LDPC codeword at the receiving end

Method used

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  • Communication method based on LDPC code and communication equipment
  • Communication method based on LDPC code and communication equipment
  • Communication method based on LDPC code and communication equipment

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Embodiment Construction

[0049] For ease of understanding, an example architecture diagram of a communication system to which the communication method and the communication device according to the embodiments of the present application can be applied is firstly described as a whole. It should be understood that the embodiment of the present application is not limited to figure 1 In the system architecture shown. also, figure 1 The devices in the system can be hardware, or functionally divided software, or a combination of the above two.

[0050] Such as figure 1 As shown, the communication system may include two communication devices, namely a first communication device 110 and a second communication device 120 .

[0051] Wherein, the first communication device 110 and the second communication device 120 may be base stations, user equipment (User Equipment, UE) or other communication devices, which is not limited in this embodiment of the present application.

[0052] It should be understood that ...

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Abstract

The embodiment of the invention provides a communication method based on the LDPC code and communication equipment. The communication method comprises the steps that an information sequence to be transmitted is acquired; a first LDPC basis matrix is applied to perform channel coding on the information sequence to be transmitted so as to obtain a first LDPC code word sequence, wherein the first LDPC basis matrix includes a punching instruction column, the low order recovery row of the first LDPC basis matrix is before the high order recovery row, the number of the punching target elements in the low order recovery row is less than that of the punching target elements in the high order recovery row, and the punching target elements are the target elements arranged in the punching instructioncolumn; and a second LDPC code word sequence is transmitted, wherein the second LDPC code word sequence includes the cord words apart from the code words corresponding to the punching instruction column in the first LDPC code word sequence, and the target elements are the extended elements of the non-zero matrix. According to the communication method based on the LDPC code and the communication equipment, the decoding speed of the communication equipment is enhanced so that the communication efficiency is enhanced.

Description

technical field [0001] The embodiments of the present application relate to the communication field, and more specifically, relate to a communication method and a communication device based on a Low Density Parity Check (LowDensity Parity Check, LDPC) code. Background technique [0002] In the communication process, since the information sequence is a random sequence, the receiving end cannot predict the value of the code word, nor can it identify whether there is an error code, so the sending end needs to add some error control code words in the information sequence, and then receive The terminal performs error judgment and error correction according to these error control codewords. [0003] The error control codeword added to the information sequence by the transmitting end may also be called a supervisory codeword or check element. The process of adding error control codewords to information sequences can be called channel coding. Correspondingly, the receiving end can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0063
Inventor 马亮魏岳军
Owner HUAWEI TECH CO LTD
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