Search International and National Patent Collections

1. (WO2017152839) MESSAGE PASSING ALGORITHM DECODER AND METHODS

Pub. No.:    WO/2017/152839    International Application No.:    PCT/CN2017/075954
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Thu Mar 09 00:59:59 CET 2017
IPC: H03M 13/00
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
Inventors: GUILLEMETTE, Philippe
Title: MESSAGE PASSING ALGORITHM DECODER AND METHODS
Abstract:
Methods and devices are disclosed for receiving and detecting sparse data sequences using a message passing algorithm (MPA) with early propagation of belief messages. Such data sequences may be used in wireless communications systems supporting multiple access, such as sparse code multiple access (SCMA) systems. The determination and passing of one or more messages for an edge between a function node and a variable node in a factor graph representation of the system may be performed in serial with determined values available early for subsequent computations. The serial computations may be scheduled based on various factors.