公开(公告)号：US09059741B2

公开(公告)日：2015-06-16

申请号：US14579146

申请日：2014-12-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Koo Yang ,  Sung-Hee Hwang ,  Seho Myung

IPC: H03M13/00 ,  G06F11/00 ,  H03M13/11

CPC classification number: H03M13/116 ,  H03M13/1171 ,  H03M13/611 ,  H03M13/616 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/6516 ,  H03M13/6544 ,  H04L1/0041

Abstract: A method is provided for transmitting a Low Density Parity Check (LDPC) code by a signal transmission apparatus in a multimedia system. The method includes generating the LDPC code based on a resulting parity check matrix, which is generated by performing a scaling down operation on a base parity check matrix; and transmitting the LDPC code. The scaling down operation is performed based on a scaling factor for determining a size of each permutation matrix in the resulting parity check matrix and a size of each zero matrix included in the resulting parity check matrix, and the scaling factor is determined based on a number of column blocks included in the base parity check matrix and a size of each permutation matrix included in the base parity check matrix.

Abstract translation: 提供一种用于通过多媒体系统中的信号发送装置发送低密度奇偶校验（LDPC）码的方法。 该方法包括：通过对基本奇偶校验矩阵执行缩小运算而生成的基于得到的奇偶校验矩阵的LDPC码; 以及发送LDPC码。 基于用于确定所得到的奇偶校验矩阵中的每个置换矩阵的大小的缩放因子以及所得到的奇偶校验矩阵中包括的每个零矩阵的大小来执行缩小运算，并且缩放因子基于数量 包括在基本奇偶校验矩阵中的列块和包括在基本奇偶校验矩阵中的每个置换矩阵的大小。

公开(公告)号：US09043682B2

公开(公告)日：2015-05-26

申请号：US13777313

申请日：2013-02-26

Applicant: Samsung Electronics Co. Ltd.

Inventor： Sunghee Hwang ,  Seho Myung ,  Hyunkoo Yang

IPC: H03M13/00 ,  H03M13/05 ,  H03M13/29 ,  H03M13/37

CPC classification number: H03M13/05 ,  G06F11/10 ,  H03M13/098 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/2707 ,  H03M13/2906 ,  H03M13/2957 ,  H03M13/356 ,  H03M13/373 ,  H03M13/3761 ,  H03M13/6356 ,  H03M13/6508 ,  H03M13/6516 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0083 ,  H04L1/0084

Abstract: A packet transmission/reception apparatus and method is provided. The packet transmission method of the present invention includes acquiring a source payload including partial source symbols from a source block, generating a source packet including the source payload and an identifier (ID) of the source payload, generating a repair packet including a repair payload corresponding to the source payload and an ID of the repair payload, generating a Forward Error Correction (FEC) packet block including the source and repair packets, and transmitting the FEC packet block. The source payload ID includes a source payload sequence number incrementing by 1 per source packet. The packet transmission/reception method of the present invention is advantageous in improving error correction capability and network resource utilization efficiency.

Abstract translation: 提供了分组发送/接收装置和方法。 本发明的分组传输方法包括从源块获取包括部分源符号的源有效载荷，生成包括源有效载荷的源分组和源有效载荷的标识符（ID），生成包括修复有效载荷对应的修复分组 到源有效载荷和修复有效载荷的ID，生成包括源和修复包的前向纠错（FEC）包块，并发送FEC包块。 源有效载荷ID包括每个源分组递增1的源有效载荷序列号。 本发明的分组发送/接收方法在提高纠错能力和网络资源利用效率方面是有利的。

公开(公告)号：US08918697B2

公开(公告)日：2014-12-23

申请号：US13674651

申请日：2012-11-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Koo Yang ,  Sung-Hee Hwang ,  Seho Myung

IPC: H03M13/00 ,  G06F11/00 ,  H03M13/11

CPC classification number: H03M13/116 ,  H03M13/1171 ,  H03M13/611 ,  H03M13/616 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/6516 ,  H03M13/6544 ,  H04L1/0041

Abstract: An apparatus and method are provided for transmitting and receiving a quasi-cyclic Low Density Parity Check (LDPC) code in a multimedia communication system. In the method, a signal transmission apparatus generates a quasi-cyclic LDPC code, and transmits the quasi-cyclic LDPC code to a signal reception apparatus. The quasi-cyclic LDPC code is generated by encoding an information word vector using a child parity check matrix, generated by performing one of a scaling operation, a row separation operation, and a row merge operation on a parent parity check matrix. In the scaling operation, a size of the child parity check matrix is determined. In the row separation operation, each of rows included in the parent parity check matrix is separated. In the row merge operation, the rows included in the parent parity check matrix are merged.

Abstract translation: 提供了一种用于在多媒体通信系统中发送和接收准循环低密度奇偶校验（LDPC）码的装置和方法。 在该方法中，信号发送装置生成准循环LDPC码，并将准循环LDPC码发送到信号接收装置。 通过对父校验矩阵执行缩放操作，行分离操作和行合并操作之一生成的子奇偶校验矩阵来生成准循环LDPC码。 在缩放操作中，确定子奇偶校验矩阵的大小。 在行分离操作中，包括在父奇偶校验矩阵中的行中的每一行被分离。 在行合并操作中，包含在父校验矩阵中的行被合并。

公开(公告)号：US08533556B2

公开(公告)日：2013-09-10

申请号：US13655075

申请日：2012-10-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seho Myung ,  Hwan-Joon Kwon ,  Jae-Yoel Kim ,  Yeon-Ju Lim ,  Sung-Ryul Yun ,  Hak-Ju Lee ,  Hong-Sil Jeong

IPC: G06F11/00

CPC classification number: H03M13/1185 ,  H03M13/1105 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/6393

Abstract: A method and an apparatus are provided for decoding a channel in a communication system using a LDPC code. A shortening pattern and a puncturing pattern are determined based on a received signal. A value of a shortened bit is set to 0 according to the determined shortening pattern, erasures are set according to the determined puncturing pattern, and LDPC decoding is performed, when bits exist which have been used to perform shortening or puncturing. Determining the shortening pattern and the puncturing pattern includes setting a predetermined ratio of the number of punctured bits to the number of shortened bits.

Abstract translation: 提供了一种使用LDPC码对通信系统中的信道进行解码的方法和装置。 基于接收到的信号来确定缩短模式和删截模式。 根据确定的缩短模式，将缩短比特的值设置为0，根据所确定的删截模式设置擦除，并且当存在已经用于执行缩短或删截的比特时执行LDPC解码。 确定缩短模式和删截模式包括将删截比特数的预定比率设置为缩短比特数。

公开(公告)号：US20130117638A1

公开(公告)日：2013-05-09

申请号：US13672233

申请日：2012-11-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Koo Yang ,  Sung-Hee Hwang ,  Seho Myung

IPC: H03M13/05

CPC classification number: H04L1/0041 ,  H03M13/05 ,  H03M13/373 ,  H03M13/6362 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0068

Abstract: An apparatus and method for transmitting and receiving an Application Layer-Forward Error Correction (AL-FEC) packet in a multimedia communication system are provided. In the AL-FEC packet transmission method, an AL-FEC packet transmission apparatus generates AL-FEC packets, and transmits the AL-FEC packets to an AL-FEC packet reception apparatus, wherein each of the AL-FEC packets includes an AL-FEC codeword symbol and an AL-FEC header, the AL-FEC codeword symbol is one of AL-FEC codeword symbols included in an AL-FEC codeword block, and the AL-FEC header includes order information indicating an order of an AL-FEC codeword symbol into which the AL-FEC header is inserted among the AL-FEC codeword symbols included in the AL-FEC codeword block.

Abstract translation: 提供了一种用于在多媒体通信系统中发送和接收应用层前向纠错（AL-FEC）分组的装置和方法。 在AL-FEC分组发送方法中，AL-FEC分组发送装置生成AL-FEC分组，并将AL-FEC分组发送到AL-FEC分组接收装置，其中，每个AL-FEC分组包括AL- FEC码字符号和AL-FEC报头，AL-FEC码字符号是包括在AL-FEC码字块中的AL-FEC码字符号之一，并且AL-FEC报头包括指示AL-FEC的顺序的顺序信息 在包括在AL-FEC码字块中的AL-FEC码字符号之间插入AL-FEC头的码字符号。

公开(公告)号：US12218751B2

公开(公告)日：2025-02-04

申请号：US17628114

申请日：2020-07-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jeongho Yeo ,  Seho Myung ,  Yongok Kim ,  Taehyoung Kim ,  Jinyoung Oh

IPC: H04L1/00 ,  H04W72/044

Abstract: The disclosure relates to a 5th Generation (5G) or pre-5G communication system for supporting a higher data rate after a 4th Generation (4G) communication system such as long term evolution (LTE). The disclosure is for transmitting and receiving data and control information in a wireless communication system. A method of operating a terminal may include receiving from a base station an instruction for Limited Buffer Rate Matching (LBRM), obtaining at least one parameter required to perform the LBRM, determining a limited range of parity bits for the LBRM, based on the parameters, and transmitting or receiving data, based on the limited range.

公开(公告)号：US12218685B2

公开(公告)日：2025-02-04

申请号：US18460244

申请日：2023-09-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seho Myung ,  Kyungjoong Kim ,  Seokki Ahn ,  Min Jang ,  Hongsil Jeong

IPC: H03M13/11 ,  H03M13/00

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). An apparatus and a method for channel encoding and decoding in a communication or broadcasting system is provided. According to the present disclosure, the method for channel encoding in a communication or broadcasting system includes determining a block size Z, and performing encoding based on the block size and a parity check matrix corresponding to the block size, in which the block size is included in any one of the plurality of block size groups and the parity check matrix is different for each block size group.

公开(公告)号：US12143211B2

公开(公告)日：2024-11-12

申请号：US18451737

申请日：2023-08-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyungjoong Kim ,  Seho Myung ,  Hongsil Jeong

IPC: H04L1/00 ,  H04B7/06 ,  H04L1/20 ,  H04L5/00

Abstract: The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). An operating method of a user equipment (UE) in a communication system includes performing radio resource control (RRC) signaling with a base station, determining a code rate based on an RRC configuration according to the RRC signaling, and determining a size of data using the code rate.

公开(公告)号：US12068851B2

公开(公告)日：2024-08-20

申请号：US18332452

申请日：2023-06-09

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongsil Jeong ,  Kyungjoong Kim ,  Seho Myung

IPC: H03M13/00 ,  H03M13/11 ,  H04L1/00 ,  H04L1/1812

CPC classification number: H04L1/0058 ,  H03M13/1148 ,  H03M13/116 ,  H03M13/1185 ,  H03M13/616 ,  H03M13/6306 ,  H03M13/6393 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0067 ,  H04L1/1819 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0071

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure discloses a method for effective retransmission when HARQ is applied to data encoded with a low density parity check (LDCP) code. A data transmission method of the transmitter may include: initially transmitting data encoded with an LDPC code to a receiver; receiving a negative acknowledgement (NACK) from the receiver; determining retransmission related information for data retransmission; and retransmitting, in response to the NACK, LDPC-encoded data based on the retransmission related information.

公开(公告)号：US11870460B2

公开(公告)日：2024-01-09

申请号：US17249406

申请日：2021-03-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min Jang ,  Seho Myung ,  Hongsil Jeong ,  Kyungjoong Kim ,  Jaeyoel Kim ,  Seokki Ahn

IPC: H03M13/00 ,  H03M13/13 ,  H04L1/00 ,  H03M13/27

CPC classification number: H03M13/13 ,  H03M13/2792 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/0057 ,  H04L1/0065

Abstract: A communication method for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The method includes identifying a length of information bits to be encoded; identifying a length of transmission bits; determining a size of a code for a polar encoding based on the length of the transmission bits, a maximum size of the code, and a minimum size of the code; identifying a codeword by the polar encoding of the information bits based on the determined size of the code; and obtaining the transmission bits based on the length of the transmission bits.