公开(公告)号：US09203681B2

公开(公告)日：2015-12-01

申请号：US14518356

申请日：2014-10-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ki Taek Bae ,  Peng Xue ,  Kyeong Yeon Kim ,  Navneet Basutkar ,  Ho Yang

IPC: H04L27/38

CPC classification number: H04L27/38 ,  H04L25/067

Abstract: A method of performing a soft demapping, includes obtaining a signal from a symbol representing bits that is transmitted from a transmitter, and calculating a gradient of a reference line in a constellation for a bit based on a rotation angle and a channel state of the constellation. The method further includes selecting a candidate for each of lines that corresponds to a logic value of the bit from constellation points included in the constellation based on the signal and the gradient of the reference line, and calculating a log-likelihood ratio (LLR) of the bit based on the signal and the selected candidate for each of the lines.

Abstract translation: 执行软解映射的方法包括从表示从发送器发送的比特的符号获得信号，并且基于星座的旋转角度和信道状态来计算比特的星座图中的参考线的梯度 。 该方法还包括：基于参考线的信号和斜率，从包括在星座中的星座点中选择与该位的逻辑值对应的每行的候选，并且计算对数似然比（LLR） 该比特基于该信号和每条线路的选择的候选。

公开(公告)号：US09841979B2

公开(公告)日：2017-12-12

申请号：US14330562

申请日：2014-07-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Keshava Prasad ,  Navneet Basutkar ,  Young Hwan Park ,  Ho Yang ,  Yeon Bok Lee

IPC: G06F9/38 ,  G06F7/76 ,  H04L9/06 ,  G06F7/06 ,  G06F9/30

CPC classification number: G06F9/3887 ,  G06F7/06 ,  G06F7/76 ,  G06F9/30032 ,  H04L9/0618 ,  H04L2209/08

Abstract: A method and corresponding apparatus for processing a shuffle instruction are provided. Shuffle units are configured in a hierarchical structure, and each of the shuffle units generates a shuffled data element array by performing shuffling on an input data element array. In the hierarchical structure, which includes an upper shuffle unit and a lower shuffle unit, the shuffled data element array output from the lower shuffle unit is input to the upper shuffle unit as a portion of the input data element array for the upper shuffle unit.

公开(公告)号：US09246724B2

公开(公告)日：2016-01-26

申请号：US14200739

申请日：2014-03-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Peng Xue ,  Kyeong Yeon Kim ,  Ki Taek Bae ,  Navneet Basutkar ,  Ho Yang

IPC: H03D3/22 ,  H04L27/22 ,  H04L27/06 ,  H04L25/06 ,  H04L27/38 ,  H04L27/34

CPC classification number: H04L27/06 ,  H04L25/067 ,  H04L27/3444 ,  H04L27/38

Abstract: A soft demapping apparatus and method thereof includes a pre-processing unit to pre-process a reception signal obtained from a symbol representing bits. A candidate selection unit selects two candidates from among constellation points included in a constellation for each of the bits. A distance calculation unit calculates a Euclidean distance between the reception signal and the two candidates. A log-likelihood ratio (LLR) calculation unit calculates an LLR with respect to the bits based on the Euclidean distance between the reception signal and the two candidates.

Abstract translation: 软解映射装置及其方法包括：预处理单元，用于预处理从表示比特的符号获得的接收信号。 候选选择单元从针对每个位的星座中包括的星座点中选择两个候选。 距离计算单元计算接收信号与两个候选者之间的欧几里得距离。 对数似然比（LLR）计算单元基于接收信号和两个候选者之间的欧氏距离来计算相对于比特的LLR。