公开(公告)号：US12079962B2

公开(公告)日：2024-09-03

申请号：US17215529

申请日：2021-03-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mojtaba Rahmati ,  Dongwoon Bai ,  Jungwon Lee

IPC: G06K9/00 ,  G06T5/50 ,  G06T5/70

CPC classification number: G06T5/70 ,  G06T5/50 ,  G06T2207/20024 ,  G06T2207/20221 ,  G06T2207/20224

Abstract: A method and system are provided. The method includes obtaining a difference map between a reference frame and a non-reference frame, estimating a noise variance of the obtained difference map, obtaining merging weights based on the estimated noise variance and the obtained different map, and merging the non-reference frame with the reference frame using the obtained merging weights.

公开(公告)号：US20240137150A1

公开(公告)日：2024-04-25

申请号：US18074372

申请日：2022-12-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mojtaba Rahmati ,  Hyukjoon Kwon ,  Dongwoon Bai

IPC: H04L1/00 ,  H04W52/02

CPC classification number: H04L1/005 ,  H04L1/0061 ,  H04W52/0209

Abstract: A system and a method are disclosed for determining early termination during an iterative detection and decoding (IDD) procedure. The method may include computing, during the IDD procedure, one or more log-likelihood ratios (LLRs) of one or more cyclic-redundancy checks (CRC), and determining that at least one of the LLRs predict a failure of a CRC check and, in response, terminating the IDD procedure.

公开(公告)号：US10897769B2

公开(公告)日：2021-01-19

申请号：US16267620

申请日：2019-02-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mojtaba Rahmati ,  Dongwoon Bai ,  Jungwon Lee

IPC: H04W72/08 ,  H04L1/00 ,  H04L5/00 ,  H04W72/06 ,  H04J11/00

Abstract: A method and an apparatus. The method includes receiving a signal including a serving signal and an interference signal; applying a Gaussian approximation (GA) on the serving signal and the interference signal; determining likelihood metrics for hypotheses on a rank of the interference signal, a precoding matrix index, and power on the GA-applied interference signal based on a covariance matrix for each of the hypotheses; and selecting one of the hypotheses that maximizes one of the likelihood metrics.

公开(公告)号：US20160315792A1

公开(公告)日：2016-10-27

申请号：US14987392

申请日：2016-01-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mojtaba Rahmati ,  Dongwoon Bai ,  Jungwon Lee

IPC: H04L25/02 ,  H04L27/38 ,  H04L1/00

CPC classification number: H04L25/0256 ,  H04B7/0413 ,  H04L1/0048 ,  H04L1/0054 ,  H04L27/38

Abstract: Methods and apparatus for soft MIMO detection of high order QAM with initial candidate reduction are described. A method includes receiving a plurality of signals including Q-order QAM symbols; determining a reduced candidate set including C potential candidates, where C is less than Q; calculating Euclidean distances (EDs) based on the reduced candidate set; and generating LLR information based on the calculated EDs.

Abstract translation: 描述了具有初始候选减少的高阶QAM的软MIMO检测的方法和装置。 一种方法包括接收包括Q阶QAM符号的多个信号; 确定包括C个潜在候选的缩减候选集，其中C小于Q; 基于缩减候选集计算欧几里德距离（ED）; 以及基于所计算的ED生成LLR信息。