Decoder, method and computer storage medium

Abstract

The embodiment of the invention discloses a decoder. At least more than one computing unit of the decoder is used for obtaining to-be-decoded soft bit information of a variable node n in a basic matrix; judging whether the decoding iteration frequency i is smaller than a decoding iteration threshold value or not; when i is determined to be smaller than a decoding iteration threshold, judging whether the decoding layer number k is smaller than the row number a of the basic matrix or not; when k is determined to be smaller than a, determining soft bit information of the kth layer of variable node n according to the soft bit information of the (k-1) th layer of variable node n, and determining (k + 1) th layer of variable node information according to the soft bit information of the (k-1) thlayer of variable node n; determining check node information of the (k + 1) th layer according to the variable node information of the (k + 1) th layer; updating k to k + 1, and judging whether k is smaller than a or not again; and when k is determined to be greater than or equal to a, updating i to be i + 1, and re-executing the step of judging whether i is less than the decoding iteration threshold or not until i is equal to the decoding iteration threshold. The embodiment of the invention further discloses a decoding method and a computer storage medium.

Description

technical field [0001] The present invention relates to the technical field of decoders for QuasiCyclic Low-Density Parity-Check (QC-LDPC) codes in wireless communications, and in particular to a decoder, method and computer storage medium. Background technique [0002] With the continuous development of multimedia broadcasting, wireless communication, and Very Large Scale Integration (VLSI, Very Large Scale Integration) technology, LDPC code, as the forward error correction code (FEC, Forward Error Correction) closest to Shannon's limit, was selected as the fifth in the future. A data channel coding scheme for enhanced mobile broadband (eMBB, Enhance Mobile Broadband) services in 5G, 5th-Generation. [0003] LDPC has been widely used in communication systems such as Digital Video Broadcasting (DVB, Digital Video Broadcasting), Wireless Local Area Networks (WLAN, Wireless Local Area Networks), and Worldwide Interoperability for Microwave Access (WiMAX, Worldwide Interoperabi...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention expects to provide a decoder, method and computer storage medium, which can avoid the technical problem of low decoding efficiency when the standard layered decoding method is used in the existing LDPC decoding method, aiming at In improving the decoding efficiency of LDPC decoding

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