Method for controlling a check node of a NB-LDPC decoder and corresponding check node

US10554226B2 · kind B2 · utility

Assignees

• UNIVERSITE DE BRETAGNE SUD · FR
• Technische Universität Kaiserslautern · DE
• CREONIC GMBH · DE

Inventors

• Emmanuel Boutillon · Lorient, FR
• Philipp Schläfer · Neubiberg, DE
• Timo Lehnigk-Emden · Kaiserslautern, DE

Key dates

• Filing date: Apr 22, 2016
• Grant date: Feb 4, 2020
• Expiry date: May 30, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03M13/458
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

Some embodiments are directed to a method for controlling a check node of a NB-LDPC decoder. The check node receives dc input lists Ui and delivers and delivers dc output lists Vi, with i∈[1 . . . dc]. Each input list and output list includes nm elements and each element of the input or output lists includes a reliability value associated to a symbol of a Galois Field GF(q) with q>nm. The input elements and output elements are sorted according to the reliability values in the lists. The method is a syndrome-based method. The syndromes are sums of dc elements of input lists Ui. The method includes a step of syndrome calculation, a step of decorrelation and a step for generating the output list.