Communication method based on LDPC code and communication equipment

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...

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

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