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Methods and systems for encoding and decoding for LDPC codes

專利號(hào)
US10868567B2
公開(kāi)日期
2020-12-15
申請(qǐng)人
Huawei Technologies Co., Ltd.（CN Shenzhen）
發(fā)明人
Guido Montorsi; Sergio Benedetto; Yan Xin; Wei Lin; Min Yan
IPC分類
H03M13/11; H03M13/00
技術(shù)領(lǐng)域
ldpc,parity,matrix,hn,check,rows,codeword,submatrix,row,802.11ad
地域： Shenzhen, Guangdong

摘要

Methods and devices are disclosed for encoding source words and decoding codewords with LDPC matrices. The Methods and devices use a LDPC matrix Hn of lifting factor Z. The LDPC matrix Hn comprises a plurality of submatrices, each submatrix having a size of Z×Z, and at least one submatrix has m1 diagonals of “1” m1 is an integer>=2.

說(shuō)明書

Communications between the STA 102 and the AP 104 in the network 100 may be implemented by encoding source words to be transmitted using low density parity check (LDPC) encoding techniques, and/or by decoding codewords received using LDPC code decoding techniques. After source words are encoded with LDPC encoding techniques, when the encoded codewords are transmitted in a signal from the AP 104 to the STA 102 or from the STA 102 to the AP 104, the LDPC encoding information of the transmitted signal may be included in the frame transmitted. After the transmitted signal is received by the STA 102 or the AP 104, with the LDPC encoding information of the received signal, the STA 102 or the AP 104 may then select appropriate LDPC decoding technologies to decode the received signal.

Transmitter and Encoder

FIG. 2A represents an example implementation of a transmitter of the STA 102 or the AP 104. The transmitter may include a source words segmenting module 202, a LDPC encoder 204, a bit-to-symbol mapping modulator 206, and a blocking module 208.

FIG. 2B illustrates example steps of processing input information bit stream by the transmitter.

權(quán)利要求

1
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