公开(公告)号：WO2006022530A1

公开(公告)日：2006-03-02

申请号：PCT/KR2005/002836

申请日：2005-08-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： CHOI, Seung-Hoon ,  PARK, Sung-Eun ,  KIM, Jae-Yoel ,  PARK, Dong-Seek

IPC: H04L27/26

CPC classification number: H04L27/261

Abstract: Disclosed is a method for detecting an initial operating mode in an OFDMA wireless communication system the method includes receiving from a BS a reference signal having a specific pattern, and detecting an initial operation mode according to the received reference signal.

Abstract translation: 公开了一种在OFDMA无线通信系统中检测初始操作模式的方法，该方法包括从BS接收具有特定模式的参考信号，并根据接收的参考信号检测初始操作模式。

公开(公告)号：WO2006019217A1

公开(公告)日：2006-02-23

申请号：PCT/KR2005/001239

申请日：2005-04-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： KYUNG, Gyu-Bum ,  MYUNG, Se-Ho ,  YANG, Kyeong-Cheol ,  YANG, Hyun-Koo ,  PARK, Dong-Seek ,  KIM, Jae-Yoel ,  PARK, Sung-Eun ,  CHOI, Seung-Hoon ,  JOO, Pan-Yuh ,  JEONG, Hong-Sil

IPC: H04L1/00

CPC classification number: H03M13/116 ,  H03M13/1134 ,  H03M13/118 ,  H03M13/1185 ,  H03M13/1188 ,  H03M13/1194 ,  H03M13/6362

Abstract: Disclosed is a device and procedure for coding a block low density parity check (LDPC) code having a variable length. The a device and procedure includes receiving an information word; and coding the information word into a block LDPC code according to a first parity check matrix or a second parity check matrix depending on a length to be applied when generating the information word into the block LDPC code.

Abstract translation: 公开了一种用于编码具有可变长度的块低密度奇偶校验（LDPC）码的装置和过程。 一种设备和过程包括接收信息字; 根据第一奇偶校验矩阵或第二奇偶校验矩阵，将信息字编码为块LDPC码，取决于当将信息字生成到块LDPC码时要应用的长度。

公开(公告)号：WO2005025102A1

公开(公告)日：2005-03-17

申请号：PCT/KR2004/002296

申请日：2004-09-09

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  YUN, Sung-Ryul ,  PARK, Sung-Eun ,  KIM, Jae-Yoel

Inventor： YUN, Sung-Ryul ,  PARK, Sung-Eun ,  KIM, Jae-Yoel

IPC: H04J11/00

CPC classification number: H04L27/2618

Abstract: A method for reducing a peak-to-average power ratio (PAPR) in an orthogonal frequency division multiplexing (OFDM) communication system including N carriers, among which L carriers are allocated to L reserved tones and data are carried by (N-L) remaining tones, wherein L is smaller than N, including generating an impulse signal from the L reserved tones; converting a phase of the generated impulse signal into a phase of a signal having a maximum peak value from among complex output signals obtained though inverse fast Fourier transform (IFFT) of the N carriers; scaling the generated impulse signal by the difference between the maximum peak value and a target power value; and complex-adding the scaled signal and the complex output signal after IFFT.

Abstract translation: 一种用于降低包括N个载波的正交频分复用（OFDM）通信系统中的峰值与平均功率比（PAPR）的方法，其中将L个载波分配给L个保留音和数据由（NL）个剩余音调 其中L小于N，包括从L个保留音产生脉冲信号; 将所产生的脉冲信号的相位从通过N个载波的快速傅里叶逆变换（IFFT）获得的复合输出信号中转换为具有最大峰值的信号的相位; 通过最大峰值与目标功率值之间的差来缩放产生的脉冲信号; 并在IFFT之后复合加上缩放的信号和复合输出信号。

公开(公告)号：WO2007126266A1

公开(公告)日：2007-11-08

申请号：PCT/KR2007/002090

申请日：2007-04-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： PARK, Sung-Eun ,  LIM, Chi-Woo ,  PARK, Dong-Seek ,  KIM, Jae-Yoel ,  CHOI, Seung-Hoon ,  KYUNG, Gyu-Bum ,  JEONG, Hong-Sil ,  LESTABLE, Thierry

IPC: H04L1/00

CPC classification number: H04L1/0043 ,  H03M13/116 ,  H03M13/1171 ,  H03M13/1188 ,  H03M13/6527 ,  H03M13/6544 ,  H04L1/0057

Abstract: ABSTRACT An apparatus and method for encoding/decoding a non-binary low density parity check (LDPC) code in a communication system. The apparatus and method includes receiving an information vector; generating a non-binary LDPC code by encoding the information vector into a non-binary LDPC code according to a non-binary LDPC encoding scheme.

Abstract translation: 摘要：一种用于在通信系统中对非二进制低密度奇偶校验（LDPC）码进行编码/解码的装置和方法。 该装置和方法包括：接收信息向量; 通过根据非二进制LDPC编码方案将信息矢量编码为非二进制LDPC码来生成非二进制LDPC码。

公开(公告)号：WO2006031070A1

公开(公告)日：2006-03-23

申请号：PCT/KR2005/003060

申请日：2005-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： KIM, Young-Bum ,  CHOI, Seung-Hoon ,  PARK, Sung-Eun ,  LEE, Ju-Ho ,  KIM, Jae-Yoel ,  CHO, Joon-Young ,  PARK, Dong-Seek

IPC: H04B7/26

CPC classification number: H04L1/0057 ,  H04L1/0041 ,  H04L1/0068 ,  H04L1/007 ,  H04L1/08 ,  H04L1/1812

Abstract: A method and apparatus is provided to improve an error correction capability for transmitted information, thereby reducing bit error rate and block error rate, and improving the reliability. The method and apparatus can generate error correcting codes having a good minimum distance characteristic, and which can achieve soft decision decoding and reduce the quantity of calculations for the decoding by using an IFHT decoder. Also, the method and apparatus can perform decoding while improving the error correcting capability of particular bits.

Abstract translation: 提供了一种提高发送信息的纠错能力的方法和装置，从而降低误码率和块错误率，提高可靠性。 该方法和装置可以产生具有良好的最小距离特性的纠错码，并且可以通过使用IFHT解码器来实现软判决解码并减少用于解码的计算量。 此外，该方法和装置可以在提高特定比特的纠错能力的同时进行解码。

公开(公告)号：WO2005060141A1

公开(公告)日：2005-06-30

申请号：PCT/KR2004/003357

申请日：2004-12-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： JEONG, Hong-Sil ,  KYUNG, Gyu-Bum ,  KIM, Jae-Yoel ,  PARK, Sung-Eun

IPC: H04L1/00

CPC classification number: H03M13/1148 ,  H03M13/356

Abstract: Disclosed is an apparatus for transmitting information bits after coding the information bits with Low Density Parity Check (LDPC) codes having unequal error probability values in a wireless communication system which channel-codes and transmits the information bits. The apparatus includes a LDPC encoder for mapping high information bits to low variable nodes and low information bits to high variable nodes, the high information bits having high importance priorities and the low information bits having low importance priorities from among the information bits, wherein the low variable nodes are variable nodes having low error probability values and the high variable nodes are variable nodes having high error probability values in a factor graph of the LDPC codes.

Abstract translation: 公开了一种用于在对通信编码和发送信息比特的无线通信系统中具有不等错误概率值的低密度奇偶校验（LDPC）码进行编码信息比特之后发送信息比特的装置。 该装置包括用于将高信息比特映射到低可变节点和低信息比特到高可变节点的LDPC编码器，高信息比特具有高重要性优先级，低信息比特在信息比特中具有低重要度优先级，其中低 可变节点是具有低错误概率值的变量节点，高可变节点是在LDPC码的因子图中具有高错误概率值的可变节点。

公开(公告)号：WO2005020500A1

公开(公告)日：2005-03-03

申请号：PCT/KR2004/002144

申请日：2004-08-26

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KYUNG, Gyu-Bum ,  JEONG, Hong-Sil ,  KIM, Jae-Yoel ,  PARK, Sung-Eun ,  YANG, Kyeong-Cheol ,  MYUNG, Se-Ho

Inventor： KYUNG, Gyu-Bum ,  JEONG, Hong-Sil ,  KIM, Jae-Yoel ,  PARK, Sung-Eun ,  YANG, Kyeong-Cheol ,  MYUNG, Se-Ho

IPC: H04L1/00

CPC classification number: H03M13/1105 ,  H03M13/1102 ,  H03M13/1151 ,  H03M13/1162 ,  H03M13/1171 ,  H03M13/118 ,  H03M13/1185 ,  H03M13/1188 ,  H03M13/1194

Abstract: A method for generating a parity check matrix of a block LDPC code is disclosed. The method includes determining a size of the parity check matrix based on a coding rate and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.

Abstract translation: 公开了一种用于生成块LDPC码的奇偶校验矩阵的方法。 该方法包括基于编码率和码字长度来确定奇偶校验矩阵的大小; 将具有所确定的大小的奇偶校验矩阵除以预定数量的块; 将块分类为对应于信息部分的块; 从分类为第一奇偶校验部分的块中将预定块中的置换矩阵排列在预定块中的整个下三角形形式中的单位矩阵，从被分类为第二奇偶校验部分的块中排列; 以及将排列矩阵排列在分组为信息部分的块中，使得最小周期长度最大化，权重值在块LDPC码的因子图上是不规则的。

公开(公告)号：WO2010151077A2

公开(公告)日：2010-12-29

申请号：PCT/KR2010/004143

申请日：2010-06-25

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  LIM, Chi-Woo ,  PARK, Sung-Eun

Inventor： LIM, Chi-Woo ,  PARK, Sung-Eun

IPC: H04L27/26

CPC classification number: H04L27/262 ,  H04L5/0053 ,  H04L27/2615

Abstract: An apparatus and method for reducing a Peak to Average Power Ratio (PAPR) of a Secondary Advanced (SA) preamble in a wireless communication system are provided. A method for transmitting an SA preamble includes determining an SA preamble, constructed in a unit of subblocks, according to a frequency band to be used for transmitting information, determining a sequence for reducing a PAPR of the SA preamble in consideration of at least one of a frequency band, a segment IDentifier (ID), and the number of antennas transmitting the SA preamble, updating the SA preamble using the determined sequence, and transmitting the updated SA preamble to a receive end.

Abstract translation: 提供了一种用于降低无线通信系统中的次级高级（SA）前导码的峰均功率比（PAPR）的装置和方法。 一种用于发送SA前导码的方法包括：根据用于发送信息的频带来确定以子块为单位构成的SA前导码;确定用于减少SA前同步码的PAPR的序列，以考虑以下中的至少一个： 频带，段标识符（ID）和发送SA前同步码的天线的数量，使用所确定的序列更新SA前同步码，并将更新的SA前导码发送到接收端。

公开(公告)号：WO2010079983A3

公开(公告)日：2010-07-15

申请号：PCT/KR2010/000110

申请日：2010-01-07

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  PARK, Sung-Eun ,  CHO, Jae-Weon ,  CHOI, Seung-Hoon ,  LIM, Chi-Woo ,  HONG, Song-Nam

Inventor： PARK, Sung-Eun ,  CHO, Jae-Weon ,  CHOI, Seung-Hoon ,  LIM, Chi-Woo ,  HONG, Song-Nam

IPC: H04L27/26

Abstract: An apparatus and method for transmitting/receiving an S-SCH in an Institute of Electrical and Electronics Engineers (IEEE) 802.16m wireless communication system are provided. A method for transmitting, by a transmitter, a Secondary Synchronization CHannel (S-SCH) in a communication system includes generating a sequence depending on a cell IDentification (ID), determining a subcarrier set comprising subcarriers to map the generated sequence, based on a Fast Fourier Transform (FFT) size and a segment ID, and mapping the generated sequence to the subcarriers of the determined subcarrier set.

公开(公告)号：WO2007145491A1

公开(公告)日：2007-12-21

申请号：PCT/KR2007/002934

申请日：2007-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： JEONG, Hong-Sil ,  KIM, Jae-Yoel ,  PARK, Sung-Eun ,  CHOI, Seung-Hoon ,  PARK, Dong-Seek ,  KIM, Young-Ho ,  YANG, Kyeong-Cheol ,  YANG, Hyeon-Gu ,  KYUNG, Gyu-Bum ,  MYUNG, Se-Ho

IPC: H03M13/11

CPC classification number: H03M13/116 ,  H03M13/118 ,  H03M13/618

Abstract: An apparatus and method of encoding a block Low Density Parity Check (LDPC) code in a signal transmission apparatus is disclosed. The method includes generating a block LDPC codeword by encoding an information vector using a second parity check matrix when a code rate to be used in the signal transmission apparatus is a second code rate less than a code rate of a first parity check matrix as a first code rate.

Abstract translation: 公开了一种在信号传输装置中编码块低密度奇偶校验（LDPC）码的装置和方法。 该方法包括：当要在信号传输装置中使用的码率是小于第一奇偶校验矩阵的码率的第二码率作为第一码比特时，使用第二奇偶校验矩阵对信息向量进行编码来产生块LDPC码字 码率。