公开(公告)号：US12074612B2

公开(公告)日：2024-08-27

申请号：US18158720

申请日：2023-01-24

Applicant: Nokia Solutions and Networks Oy

Inventor： Daniele Cucchi ,  Davide Cattaneo ,  Luca Gabriele Razzetti ,  Carlo Constantini ,  Giancarlo Gavioli

IPC: H03M13/11 ,  H03M13/00 ,  H03M13/37

CPC classification number: H03M13/1125 ,  H03M13/1108 ,  H03M13/1111 ,  H03M13/3723 ,  H03M13/6502

Abstract: A low-density parity-check (LDPC) decoder comprising a pre-processor, a core decoder, and a post-processor. The pre-processor is configured to transform a received log-likelihood-ratio (LLR) sequence into a form that enables the core decoder to toggle at a reduced rate during iterative decoding processing thereof. Upon stoppage of the decoding processing corresponding to the LLR sequence, the post-processor operates to apply a complementary transformation to the output of the core decoder, which recovers the corresponding codeword of the LDPC code. An example embodiment of the LDPC decoder operating in this manner may be able to beneficially reduce the power consumption therein by about 10%.

公开(公告)号：US20230238983A1

公开(公告)日：2023-07-27

申请号：US18158720

申请日：2023-01-24

Applicant: Nokia Solutions and Networks Oy

Inventor： Daniele Cucchi ,  Davide Cattaneo ,  Luca Gabriele Razzetti ,  Carlo Constantini ,  Giancarlo Gavioli

IPC: H03M13/11

CPC classification number: H03M13/1125 ,  H03M13/1108

Abstract: A low-density parity-check (LDPC) decoder comprising a pre-processor, a core decoder, and a post-processor. The pre-processor is configured to transform a received log-likelihood-ratio (LLR) sequence into a form that enables the core decoder to toggle at a reduced rate during iterative decoding processing thereof. Upon stoppage of the decoding processing corresponding to the LLR sequence, the post-processor operates to apply a complementary transformation to the output of the core decoder, which recovers the corresponding codeword of the LDPC code. An example embodiment of the LDPC decoder operating in this manner may be able to beneficially reduce the power consumption therein by about 10%.