Title:
LOG-LIKELIHOOD RATIO CALCULATION CIRCUIT AND WIRELESS RECEIVER
Document Type and Number:
Japanese Patent JP2022076113
Kind Code:
A
Abstract:
To improve the calculation accuracy of a log-likelihood ratio and improve the error correction capability of low-density parity check.SOLUTION: A log-likelihood ratio LLRN(bit_num) based on thermal noise and a log-likelihood ratio LLRφ(bit_num) based on phase noise are multiplied by weighting coefficients WN and Wφ, respectively, and then added together to calculate a log-likelihood ratio LLRbit_num.SELECTED DRAWING: Figure 1
Inventors:
KATO MASAAKI
Application Number:
JP2020186373A
Publication Date:
May 19, 2022
Filing Date:
November 09, 2020
Export Citation:
Assignee:
JAPAN RADIO CO LTD
International Classes:
H03M13/19; H04L27/00
Attorney, Agent or Firm:
Narutokirou Harashima
Kazuhiko Sato
Kazuhiko Sato