公开(公告)号：US09258079B2

公开(公告)日：2016-02-09

申请号：US14160936

申请日：2014-01-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tae-Ho Im ,  Kyung-Whoon Cheun

IPC: H04L27/06 ,  H04L1/00

CPC classification number: H04L1/00 ,  H04L1/06 ,  H04L25/03267 ,  H04L25/03292

Abstract: A method and an apparatus for generating soft-decision information in a multiple antenna system are provided. The method includes determining Q candidate symbol vectors for a first transmission symbol of a received signal vector by performing parallel detection on a received signal vector and a channel matrix, determining a candidate symbol vector having a shortest Euclidean distance to the received signal vector from among the Q candidate symbol vector, as an approximate Maximum Likelihood (ML) symbol vector, determining (Q−1) candidate symbol vectors for each of the remaining transmission symbols of the received signal vector by performing partial parallel detection on the received signal vector and the channel matrix using the approximate ML symbol vector, and calculating Log Likelihood Ratios (LLRs) of bits of the first transmission symbol using the candidate symbol vectors, wherein Q represents a modulation order.

Abstract translation: 提供了一种用于在多天线系统中产生软判决信息的方法和装置。 该方法包括通过对接收信号矢量和信道矩阵执行并行检测来确定接收信号矢量的第一传输符号的Q个候选符号向量，从接收信号向量确定具有最小欧几里得距离的候选符号向量 Q候选符号向量，作为近似最大似然（ML）符号向量，通过对接收信号向量和信道执行部分并行检测来确定（Q-1）候补符号向量，用于接收信号向量的剩余传输符号中的每一个 矩阵，并且使用候选符号向量计算第一传输符号的比特的对数似然比（LLR），其中Q表示调制阶数。