Encoding method, decoding method, encoding device and decoding device

Abstract

The embodiments of the present application disclose an encoding method, an encoding device, a decoding method, and a decoding device. The encoding method includes: determining the size of a shift matrix according to the length of the information sequence and the length of the identification sequence; The size and base matrix construct a check matrix; low-density parity check LDPC encoding is performed on the information sequence and the identification sequence based on the check matrix; wherein, the identification sequence is a non-all-zero sequence. By adopting the embodiment of the present application, the function of the LDPC check matrix can be expanded, and the recognition degree of the encoded codeword can be improved.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular, to an encoding method, a decoding method, an encoding device, and a decoding device. Background technique [0002] Low Density Parity Check (Low Density Parity Check, LDPC) code is a kind of linear block code with sparse parity check matrix proposed by Dr. Robert G. Gallager in 1963. It not only has good performance close to Shannon limit, but also translates With low code complexity and flexible structure, it is a research hotspot in the field of channel coding in recent years. It has been widely used in deep space communication, optical fiber communication, satellite digital video and audio broadcasting and other fields. And in the fifth generation (the fifth generation, 5G) mobile communication system, the coding of the data channel of the Enhanced Mobile Broadband (Enhance Mobile Broadband, eMBB) service has a good application. Among them, the check matr...

AI Technical Summary

Problems solved by technology

This does not give full play to the role of redundant information bits, that is, filling bits

Images