公开(公告)号：US20070079215A1

公开(公告)日：2007-04-05

申请号：US11519779

申请日：2006-09-13

申请人： Han-Ju Kim ,  Young-Mo Gu ,  Dong-Woon Jung ,  Min-Goo Kim

发明人： Han-Ju Kim ,  Young-Mo Gu ,  Dong-Woon Jung ,  Min-Goo Kim

IPC分类号： H03M13/00

CPC分类号： H04L27/2647 ,  H04L1/0054 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/08 ,  H04L5/023

摘要： A decoding apparatus in an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system is provided. In the apparatus comprises, a first combiner performs first combining on an input burst a first number of times. A deinterleaver deinterleaves an output of the first combiner and outputs a burst having a repeated structure. A second combiner performs second combining on the burst having the repeated structure a second number of times. A decoder decodes the combined burst. A signal detector stores a second internal memory state value of the decoder for an instance where a first decoded bit is extracted from the decoded data, stores a second internal memory state value of the decoder for an instance where a last decoded bit is extracted from the decoded data, compares the first and second stored internal memory state values of the decoder, and sets a burst quality indicator (BQI) according to the comparison result.

摘要翻译： 提供了一种正交频分多址（OFDMA）移动通信系统中的解码装置。 在该装置中，第一组合器在输入突发上执行第一次合并。 解交织器对第一组合器的输出进行解交织并输出具有重复结构的脉冲串。 第二组合器在具有重复结构的脉冲串上执行第二次组合第二次。 解码器解码组合突发。 信号检测器存储解码器的第二内部存储器状态值，用于从解码数据中提取第一解码位的情况，存储解码器的第二内部存储器状态值，用于从其中提取最后一个解码位的情况 解码数据，比较解码器的第一和第二存储的内部存储器状态值，并根据比较结果设置突发质量指示符（BQI）。

公开(公告)号：US07747931B2

公开(公告)日：2010-06-29

申请号：US11519779

申请日：2006-09-13

申请人： Han-Ju Kim ,  Young-Mo Gu ,  Dong-Woon Jung ,  Min-Goo Kim

发明人： Han-Ju Kim ,  Young-Mo Gu ,  Dong-Woon Jung ,  Min-Goo Kim

IPC分类号： H03M13/03

CPC分类号： H04L27/2647 ,  H04L1/0054 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/08 ,  H04L5/023

摘要： A decoding apparatus in an Orthogonal Frequency Division Multiple Access (OFDMA) mobile communication system is provided. In the apparatus comprises, a first combiner performs first combining on an input burst a first number of times. A deinterleaver deinterleaves an output of the first combiner and outputs a burst having a repeated structure. A second combiner performs second combining on the burst having the repeated structure a second number of times. A decoder decodes the combined burst. A signal detector stores a second internal memory state value of the decoder for an instance where a first decoded bit is extracted from the decoded data, stores a second internal memory state value of the decoder for an instance where a last decoded bit is extracted from the decoded data, compares the first and second stored internal memory state values of the decoder, and sets a burst quality indicator (BQI) according to the comparison result.

摘要翻译： 提供了一种正交频分多址（OFDMA）移动通信系统中的解码装置。 在该装置中，第一组合器在输入突发上执行第一次合并。 解交织器对第一组合器的输出进行解交织并输出具有重复结构的脉冲串。 第二组合器在具有重复结构的脉冲串上执行第二次组合第二次。 解码器解码组合突发。 信号检测器存储解码器的第二内部存储器状态值，用于从解码数据中提取第一解码位的情况，存储解码器的第二内部存储器状态值，用于从其中提取最后一个解码位的情况 解码数据，比较解码器的第一和第二存储的内部存储器状态值，并根据比较结果设置突发质量指示符（BQI）。

公开(公告)号：US20060156183A1

公开(公告)日：2006-07-13

申请号：US11289300

申请日：2005-11-30

申请人： Sang-Hyo Kim ,  Han-Ju Kim ,  Min-Goo Kim ,  Young-Mo Gu

发明人： Sang-Hyo Kim ,  Han-Ju Kim ,  Min-Goo Kim ,  Young-Mo Gu

IPC分类号： H03M13/00

CPC分类号： H03M13/6362 ,  H03M13/116 ,  H03M13/118 ,  H03M13/1185 ,  H03M13/1188

摘要： A low density parity check (LDPC) code generating method and apparatus are provided. A parity check matrix with (N−K) rows for check nodes and N columns for variable nodes are formed to encode an information sequence of length K to a codeword of length N. The parity check matrix is divided into an information part matrix with K columns and a parity part matrix with (N−k) columns. The parity part is divided into P×P subblocks. P is a divisor of (N−K). First and second diagonals are defined in the parity part matrix and the second diagonal is a shift of the first diagonal by f subblocks. Shifted identity matrices are placed on the first and second diagonals and zero matrices are filled elsewhere. An odd number of delta matrices each having only one element of 1 are placed in one subblock column of the parity part matrix. The parity check matrix is stored.

公开(公告)号：US07536623B2

公开(公告)日：2009-05-19

申请号：US11289300

申请日：2005-11-30

申请人： Sang-Hyo Kim ,  Han-Ju Kim ,  Min-Goo Kim ,  Young-Mo Gu

发明人： Sang-Hyo Kim ,  Han-Ju Kim ,  Min-Goo Kim ,  Young-Mo Gu

IPC分类号： H03M13/13

CPC分类号： H03M13/6362 ,  H03M13/116 ,  H03M13/118 ,  H03M13/1185 ,  H03M13/1188

摘要： A low density parity check (LDPC) code generating method and apparatus are provided. A parity check matrix with (N−K) rows for check nodes and N columns for variable nodes are formed to encode an information sequence of length K to a codeword of length N. The parity check matrix is divided into an information part matrix with K columns and a parity part matrix with (N−k) columns. The parity part is divided into P×P subblocks. P is a divisor of (N−K). First and second diagonals are defined in the parity part matrix and the second diagonal is a shift of the first diagonal by f subblocks. Shifted identity matrices are placed on the first and second diagonals and zero matrices are filled elsewhere. An odd number of delta matrices each having only one element of 1 are placed in one subblock column of the parity part matrix. The parity check matrix is stored.

摘要翻译： 提供了一种低密度奇偶校验（LDPC）码生成方法和装置。 形成具有用于校验节点的（NK）行和用于可变节点的N列的奇偶校验矩阵，以将长度为K的信息序列编码为长度为N的码字。奇偶校验矩阵被划分为具有K列的信息部分矩阵， 具有（Nk）列的奇偶校验部分矩阵。 奇偶校验部分分为PxP子块。 P是（N-K）的除数。 在奇偶校验部分矩阵中定义第一和第二对角线，第二对角线是第一对角线由f子块的移位。 移位的身份矩阵放置在第一和第二个对角线上，零矩阵填充到别处。 每个仅具有1个元素的奇数数量的Δ矩阵被放置在奇偶校验部分矩阵的一个子块列中。 存储奇偶校验矩阵。

公开(公告)号：US08121565B2

公开(公告)日：2012-02-21

申请号：US11961179

申请日：2007-12-20

申请人： Jong-Hun Rhee ,  Min-Goo Kim ,  Young Mo Gu

发明人： Jong-Hun Rhee ,  Min-Goo Kim ,  Young Mo Gu

IPC分类号： H04B17/02

CPC分类号： H04B7/0848 ,  H04B7/0854 ,  H04B7/0857

摘要： A method and apparatus for receiving data using multiple antennas in a communication system are provided. A received signal-combining scheme is determined according to the strength of an interference signal included in the signals received from the antennas. The signals received from the antennas are combined according to the determined received signal-combining scheme. In this manner, the method and apparatus adaptively use a received data-combining scheme according to the channel condition, thereby ensuring optimal reception performance.

摘要翻译： 提供一种在通信系统中使用多个天线接收数据的方法和装置。 根据从天线接收的信号中包含的干扰信号的强度来确定接收到的信号组合方案。 从天线接收的信号根据确定的接收信号组合方案进行组合。 以这种方式，该方法和装置根据信道条件自适应地使用接收的数据组合方案，从而确保最佳的接收性能。

公开(公告)号：US07860194B2

公开(公告)日：2010-12-28

申请号：US11594991

申请日：2006-11-09

申请人： Sang-Hyo Kim ,  Min-Goo Kim ,  Young-Mo Gu

发明人： Sang-Hyo Kim ,  Min-Goo Kim ,  Young-Mo Gu

IPC分类号： H04L27/06

CPC分类号： H04L27/0008 ,  H04B1/707 ,  H04L1/0052 ,  H04L1/0066 ,  H04L1/0075 ,  H04L25/067 ,  H04L27/2601

摘要： An apparatus and method are provided for normalizing input soft metric to a channel decoder in a wireless communication system. A demapper generates soft metric using an in-phase component (Xk) and a quadrature component (Yk) of a received modulated symbol (Rk), a channel fading coefficient (gk) and a constant value (c) defined by a modulation order of the received modulated symbol. A normalizer receives the soft metric, computes a normalized log likelihood ratio (LLR) by multiplying the soft metric by a ratio of the constant value to a noise variance value, transforms the normalized LLR into a desired range and a desired number of bits, and outputs an input LLR of the channel decoder.

摘要翻译： 提供了一种用于在无线通信系统中将输入软度量化到信道解码器的装置和方法。 解映射器使用接收的调制符号（Rk）的同相分量（X k）和正交分量（Y k），通过衰减系数（gk）和常数值（c）定义的调制阶数 接收到的调制符号。 规范化器接收软度量，通过将软度量乘以常数值与噪声方差值的比率来计算归一化对数似然比（LLR），将归一化的LLR转换成期望的范围和期望的位数，以及 输出信道解码器的输入LLR。

公开(公告)号：US07523382B2

公开(公告)日：2009-04-21

申请号：US11038183

申请日：2005-01-21

申请人： Min-Goo Kim ,  Sang-Hyuck Ha ,  Young-Mo Gu

发明人： Min-Goo Kim ,  Sang-Hyuck Ha ,  Young-Mo Gu

IPC分类号： H03M13/00

CPC分类号： H04L1/0066 ,  H03M13/271 ,  H03M13/2714 ,  H03M13/2957 ,  H03M13/6356 ,  H03M13/6362 ,  H04L1/0068 ,  H04L5/023 ,  H04L25/497

摘要： An apparatus for generating Quasi-Complementary Duo-Binary Turbo Codes (QC-DBTC). The apparatus includes a QC-DBTC encoder which receives an information symbol stream and generates a plurality of systematic symbol streams and a plurality of parity symbol streams according to a given code rate. The apparatus further includes a quad-symbol mapper which quad-maps the systematic symbol streams to one symbol stream, a channel interleaver which independently interleaves the quad-mapped systematic symbol stream and the parity symbol streams, quad-demaps the quad-mapped systematic symbol stream, interlaces symbols in parity symbol streams, and serial-concatenates the quad-demapped systematic symbol stream to the interlaced parity symbol streams. A duo-binary turbo code generator is further provided to repeat the serial-concatenated symbol stream, and select a predetermined number of symbols from the repeated symbol stream according to a code rate and selection information, thereby generating QC-DBTC codes.

摘要翻译： 一种用于产生准互补二进制Turbo码（QC-DBTC）的装置。 该装置包括QC-DBTC编码器，其接收信息符号流，并根据给定的码率产生多个系统符号流和多个奇偶校验符号流。 该装置还包括将系统符号流四维映射到一个符号流的四符号映射器，独立地交错四映射系统符号流和奇偶校验符号流的信道交织器，将四映射系统符号 流，在奇偶校验符号流中交织符号，并将四次映射映射的系统符号流串行连接到隔行扫描奇偶校验符号流。 进一步提供二进制二进制turbo码发生器以重复串联连接的符号流，并根据码率和选择信息从重复符号流中选择预定数量的码元，由此产生QC-DBTC码。

公开(公告)号：US20060018250A1

公开(公告)日：2006-01-26

申请号：US11185968

申请日：2005-07-21

申请人： Young-Mo Gu ,  Min-Goo Kim ,  Sung-Soo Kim

发明人： Young-Mo Gu ,  Min-Goo Kim ,  Sung-Soo Kim

IPC分类号： H04J11/00

CPC分类号： H04L5/0048 ,  H04L5/006 ,  H04L5/0085 ,  H04L25/0226 ,  H04L25/0244 ,  H04L27/2607

摘要： A system and method for effectively providing an adaptive modulation scheme and known-cyclic prefix (CP) technology in an orthogonal frequency division multiplexing (OFDM) communication system. An OFDM transmission system variably generates a known CP while considering a channel state. Pilot subcarrier position information for generating the known CP is sent to a transmitter. Pilot subcarriers are selected on the basis of a channel state of an OFDM symbol through which data is transmitted and the known CP is generated, such that data transmission is provided efficiently.

摘要翻译： 一种用于在正交频分复用（OFDM）通信系统中有效提供自适应调制方案和已知循环前缀（CP）技术的系统和方法。 在考虑信道状态的同时，OFDM传输系统可变地生成已知的CP。 用于产生已知CP的导频副载波位置信息被发送到发射机。 基于通过其发送数据并生成已知CP的OFDM符号的信道状态来选择导频子载波，使得有效地提供数据传输。

公开(公告)号：US20050128934A1

公开(公告)日：2005-06-16

申请号：US11003338

申请日：2004-12-06

申请人： Young-Mo Gu ,  Min-Goo Kim ,  Soon-Jae Choi

发明人： Young-Mo Gu ,  Min-Goo Kim ,  Soon-Jae Choi

IPC分类号： H04B7/155 ,  H04J11/00 ,  H04L27/26

CPC分类号： H04J13/0048 ,  H04J13/18 ,  H04L27/2602

摘要： Disclosed is a transmission/reception apparatus and method for providing compatibility between Code Division Multiple Access (CDMA) and Orthogonal Frequency Division Multiplexing (OFDM) in a forward link. The proposed transmission/reception apparatus and method uses a traffic channel based on OFDM while using a pilot channel and a sync channel used in the CDMA scheme. Thus, a transmitter adds a pilot channel signal and a sync channel signal to OFDM-modulated symbols before transmission, and a receiver acquires a pilot channel signal and a sync channel signal, and removes them from a received signal, thereby outputting only pure OFDM-modulated symbols.

摘要翻译： 公开了一种用于在前向链路中提供码分多址（CDMA）和正交频分复用（OFDM）之间的兼容性的发送/接收装置和方法。 所提出的发送/接收装置和方法使用基于OFDM的业务信道，同时使用CDMA方案中使用的导频信道和同步信道。 因此，发射机在发射前向OFDM调制的符号添加导频信道信号和同步信道信号，并且接收机获取导频信道信号和同步信道信号，并将其从接收信号中去除，从而仅输出纯OFDM- 调制符号。

公开(公告)号：US07924779B2

公开(公告)日：2011-04-12

申请号：US11390126

申请日：2006-03-27

申请人： Hae-Dong Yeon ,  Yun-Sang Park ,  Min-Goo Kim ,  Bong-Gee Song ,  Young-Mo Gu ,  Jae-Yong Lee ,  Sung-Soo Kim ,  Sang-Hyuck Ha

发明人： Hae-Dong Yeon ,  Yun-Sang Park ,  Min-Goo Kim ,  Bong-Gee Song ,  Young-Mo Gu ,  Jae-Yong Lee ,  Sung-Soo Kim ,  Sang-Hyuck Ha

IPC分类号： H04W4/00

CPC分类号： H04W72/0453

摘要： Disclosed is an apparatus and a method for effectively allocating frequency resources in a mobile communication system. The method includes: determining a first offset of a preset frequency band from among all frequency bands, determining a second offset corresponding to a symbol unit in the preset frequency band, and allocating frequency resources to data, the frequency resources corresponding to a sum of the first offset and the second offset.

摘要翻译： 公开了一种在移动通信系统中有效地分配频率资源的装置和方法。 该方法包括：从所有频带中确定预设频带的第一偏移，确定与预设频带中的符号单元相对应的第二偏移，并将频率资源分配给数据，频率资源对应于 第一偏移和第二偏移。