公开(公告)号：US20190173498A1

公开(公告)日：2019-06-06

申请号：US16272722

申请日：2019-02-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mostafa EL-KHAMY ,  Jinhong WU ,  Jungwon LEE ,  Inyup KANG

IPC: H03M13/39 ,  G06F11/10

Abstract: Method for decoding signal includes receiving signal, where signal includes at least one symbol; decoding signal in stages, where each at least one symbol of signal is decoded into at least one bit per stage, wherein Log-Likelihood Ratio (LLR) for each at least one bit at each stage is determined, and identified in vector LAPP; performing Cyclic Redundancy Check (CRC) on LAPP, and stopping if LAPP passes CRC; otherwise, determining magnitudes of LLRs in LAPP; identifying K LLRs in LAPP with smallest magnitudes and indexing K LLRs as r={r(1), r(2), . . . , r(K)}; setting Lmax to maximum magnitude of LLRs in LAPP or maximum possible LLR quantization value; setting v=1; generating {tilde over (L)}A(r(k))=LA(r(k))−Lmaxvksign[LAPP(r(k))], for k=1, 2, . . . , K; decoding with {tilde over (L)}A to identify {tilde over (L)}APP, wherein {tilde over (L)}APP is LLR vector; and performing CRC on {tilde over (L)}APP, and stopping if {tilde over (L)}APP passes CRC or v=2K-1; otherwise, incrementing v and returning to generating {tilde over (L)}A(r(k)).

公开(公告)号：US20150236717A1

公开(公告)日：2015-08-20

申请号：US14565082

申请日：2014-12-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mostafa EL-KHAMY ,  Jinhong WU ,  Jungwon LEE ,  Inyup KANG

IPC: H03M13/09 ,  H03M13/00

CPC classification number: H03M13/3905 ,  G06F11/1004 ,  G11B2020/1843 ,  H03M13/3738 ,  H03M13/3922 ,  H03M13/3972 ,  H03M13/451

Abstract: A method and system for decoding a signal are provided. The method includes receiving a signal, where the signal includes at least one symbol; decoding the signal in stages, where each at least one symbol is decoded into at least one bit per stage, wherein a Log-Likelihood Ratio (LLR) and a path metric are determined for each possible path for each at least one bit at each stage; determining the magnitudes of the LLRs; identifying K bits of the signal with the smallest corresponding LLR magnitudes; identifying, for each of the K bits, L possible paths with the largest path metrics at each decoder stage for a user-definable number of decoder stages; performing forward and backward traces, for each of the L possible paths, to determine candidate codewords; performing a Cyclic Redundancy Check (CRC) on the candidate codewords, and stopping after a first candidate codeword passes the CRC.

Abstract translation: 提供了一种用于解码信号的方法和系统。 该方法包括接收信号，其中该信号包括至少一个符号; 其中每个至少一个符号被解码成每级至少一个比特，其中为每个阶段的每个至少一个比特确定每个可能路径的对数似然比（LLR）和路径量度 ; 确定LLR的大小; 识别具有最小对应LLR幅度的信号的K位; 针对用户可定义数量的解码器级，为每个解码器级识别具有最大路径度量的L个可能路径中的每一个的K个比特; 对于L个可能路径中的每一个，执行前向和后向跟踪，以确定候选码字; 对候选码字执行循环冗余校验（CRC），并在第一候选码字通过CRC之后停止。

公开(公告)号：US20190173497A1

公开(公告)日：2019-06-06

申请号：US16272653

申请日：2019-02-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mostafa EL-KHAMY ,  Jinhong WU ,  Jungwon LEE ,  Inyup KANG

IPC: H03M13/39 ,  G06F11/10

Abstract: A method, system, and non-transitory computer-readable recording medium of decoding a signal are provided. The method includes receiving signal to be decoded, where signal includes at least one symbol; decoding signal in stages, where each at least one symbol of signal is decoded into at least one bit per stage, wherein Log-Likelihood Ratio (LLR) and a path metric are determined for each possible path for each at least one bit at each stage; determining magnitudes of the LLRs; identifying K bits of the signal with smallest corresponding LLR magnitudes; identifying, for each of the K bits, L possible paths with largest path metrics at each decoder stage for a user-definable number of decoder stages; performing forward and backward traces, for each of the L possible paths, to determine candidate codewords; performing a Cyclic Redundancy Check (CRC) on the candidate codewords; and stopping after a first candidate codeword passes the CRC.

公开(公告)号：US20170237528A1

公开(公告)日：2017-08-17

申请号：US15085388

申请日：2016-03-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinhong WU ,  Mostafa EL-KHAMY ,  Jungwon LEE

IPC: H04L1/18 ,  H04L5/00

CPC classification number: H04L1/1822 ,  H04L1/0046 ,  H04L1/1845 ,  H04L5/0055

Abstract: A system, method and device for wireless communication is provided. The method includes receiving, by a receiver, data from a wireless transmitter, receiving, by the receiver, retransmission of the data from the wireless transmitter, storing, by the receiver, the data, processing, by the receiver, the data without knowledge of the data length, and determining, by the receiver, a data length of the data.