公开(公告)号：US20140310568A1

公开(公告)日：2014-10-16

申请号：US14359402

申请日：2013-01-15

申请人： Wataru Matsumoto ,  Yoshikuni Miyata ,  Kenya Sugihara

发明人： Wataru Matsumoto ,  Yoshikuni Miyata ,  Kenya Sugihara

IPC分类号： H03M13/11

CPC分类号： H03M13/1105 ,  H03M13/1102 ,  H03M13/1111 ,  H03M13/1191 ,  H03M13/336 ,  H03M13/3723 ,  H03M13/6325 ,  H04L1/0047 ,  H04L1/0057

摘要： A Sum-product decoder 17 carries out soft-decision iterative decoding on a received signal s′(t) received by a signal receiving unit 12 by using an extended check matrix Hd which is a combination of a matrix D in which differential modulation by a differential modulator 3 is replaced by a check matrix and a check matrix H for error correcting codes to carry out error correction decoding on an information sequence bi.

摘要翻译： 求和积解码器17对由信号接收单元12接收的接收信号s'（t）执行软判决迭代解码，该扩展校验矩阵Hd是矩阵D的组合，其中差分调制由 差分调制器3由用于纠错码的校验矩阵和校验矩阵H代替，以对信息序列bi执行纠错解码。

公开(公告)号：US06507621B2

公开(公告)日：2003-01-14

申请号：US09914360

申请日：2001-08-27

申请人： Wataru Matsumoto ,  Yoshikuni Miyata

发明人： Wataru Matsumoto ,  Yoshikuni Miyata

IPC分类号： H04L512

CPC分类号： H03M13/258 ,  H03M13/1515 ,  H03M13/2966 ,  H03M13/2975

摘要： A communication device is provided with a turbo encoder (1) which carries out a turbo encoding process on the lower two bits of transmission data so as to output two-bit information bits and two-bit redundant bits that are generated so as to uniform the correction capabilities with respect to the respective information bits; a turbo decoder (a first decoder (11), a second decoder (15), etc.) which carries out a soft-judgment on the lower two bits of a received signal that are susceptible to degradation in characteristics, and also carries out an error-correction process using Reed Solomon codes thereon so that the information bits of the lower two bits are estimated, and a third judging device (22) which carries out a hard-judging process on the other bits of the received signal so that the other upper bits are estimated.

摘要翻译： 通信装置设置有turbo编码器（1），其对发送数据的低两位执行turbo编码处理，以输出生成的两比特信息比特和两比特冗余比特，以使 相对于各个信息位的校正能力; 对第一解码器（第一解码器（11），第二解码器（15）等）进行软判定，对接收信号的低两位进行软判断，该接收信号易受特性劣化的影响，并且还执行 误差校正处理使用里德所罗门码，以便估计下位两比特的信息比特;以及第三判断装置（22），对接收信号的其他比特执行硬判断处理，使得另一个 估计高位。

公开(公告)号：US20140136931A1

公开(公告)日：2014-05-15

申请号：US14129220

申请日：2012-06-26

申请人： Takahiko Nakamura ,  Wataru Matsumoto

发明人： Takahiko Nakamura ,  Wataru Matsumoto

IPC分类号： H03M13/05

CPC分类号： H03M13/05 ,  H03M13/159

摘要： Provided is an error-correcting decoder including: a syndrome generation unit for calculating, as a syndrome, coefficients of a residual polynomial that are obtained by dividing received data by a generator polynomial; information bit error pattern generation unit for generating all error patterns of information bits; a check bit error pattern generation unit for calculating, for each of the error patterns of the information bits, an error pattern of check bits based on the syndrome value; and an error correction unit for correcting the error pattern generated for a combination of codes having a weight of the error patterns of the information bits and the check bits smaller than a threshold value.

摘要翻译： 提供了一种纠错解码器，包括：校正子生成单元，用于计算通过将接收数据除以生成多项式而获得的残差多项式的系数作为校正子; 信息比特错误模式生成单元，用于生成信息比特的所有错误模式; 检查比特错误模式生成单元，用于针对所述信息比特的每个错误模式，基于所述校正子值计算校验比特的错误模式; 以及纠错单元，用于校正对具有信息比特的误差模式的权重和小于阈值的校验比特的代码的组合生成的错误模式。

公开(公告)号：US20100272202A1

公开(公告)日：2010-10-28

申请号：US12810638

申请日：2008-12-25

申请人： Wataru Matsumoto ,  Shigeru Uchida ,  Toshiyuki Kuze ,  Hideo Yoshida

发明人： Wataru Matsumoto ,  Shigeru Uchida ,  Toshiyuki Kuze ,  Hideo Yoshida

IPC分类号： H04L27/28

CPC分类号： H04L1/1812 ,  H04B7/0413 ,  H04L1/0656 ,  H04L1/1816

摘要： When an error correction decoding unit 26 of a data reception device 2 fails in error correction decoding of a codeword, an MIMO processing unit 15 of a data transmission device 1 deforms transmitted codewords according to a predetermined rule, and transmits the codewords, and the error correction decoding unit 26 of the data reception device 2 reproduces data by using the deformed codewords. As a result, not only the noise but the interference wave components can be reduced, and the success rates of the demodulation and error correction decoding can be improved greatly.

摘要翻译： 当数据接收装置2的纠错解码单元26对码字的纠错解码失败时，数据传输装置1的MIMO处理单元15根据预定规则使发送的码字变形，并发送码字，并且发送错误 数据接收装置2的校正解码单元26通过使用变形的码字再现数据。 结果，不仅可以降低噪声而且可以降低干扰波分量，而且可以大大提高解调和纠错解码的成功率。

公开(公告)号：US20100070820A1

公开(公告)日：2010-03-18

申请号：US12516810

申请日：2007-12-14

申请人： Lui Sakai ,  Wataru Matsumoto ,  Hideo Yoshida

发明人： Lui Sakai ,  Wataru Matsumoto ,  Hideo Yoshida

IPC分类号： H03M13/05

CPC分类号： H03M13/116 ,  H03M13/6362

摘要： When carrying out puncturing of some redundant bits in an LDPC code having a check matrix of QC structure and LDGM structure, a puncture rule for preventing redundant bits which are chained to one another from being punctured is set up, and some redundant bits out of an LDPC-coded signal are punctured out of the LDPC-coded signal according to the puncture rule. As a result, redundant bits which are chained to one another can be left.

摘要翻译： 当在具有QC结构和LDGM结构的校验矩阵的LDPC码中执行一些冗余位的删截时，建立用于防止相互链接的冗余位被打孔的穿孔规则，并且从 根据穿孔规则，从LDPC编码信号中删除LDPC编码信号。 结果，可以留下彼此链接的冗余位。

公开(公告)号：US20090138785A1

公开(公告)日：2009-05-28

申请号：US12293355

申请日：2007-03-15

申请人： Lui Sakai ,  Wataru Matsumoto ,  Hideo Yoshida

发明人： Lui Sakai ,  Wataru Matsumoto ,  Hideo Yoshida

IPC分类号： H03M13/05 ,  G06F11/07

CPC分类号： H03M13/1185 ,  H03M13/1102 ,  H03M13/1111 ,  H03M13/1117 ,  H03M13/353 ,  H03M13/356 ,  H03M13/616 ,  H03M13/618 ,  H03M13/6356 ,  H03M13/6362 ,  H03M13/6393 ,  H03M13/6527 ,  H03M13/6544 ,  H04L1/0057 ,  H04L1/0068 ,  H04L1/0083 ,  H04L1/1819

摘要： A communication device that transmits and receives LDPC-encoded information by using MIMO technology. The communication device includes a transmission sorting unit that sorts LDPC-encoded bits constituting the LDPC-encoded information in a descending order of column degree of a check matrix used for generating the LDPC-encoded bits; and a signal transmitting unit that transmits the LDPC-encoded bits sorted by the transmission sorting unit by allocating the LDPC-encoded bits from a transmission line having a lower noise level in sorted order.

摘要翻译： 一种使用MIMO技术发送和接收LDPC编码信息的通信装置。 通信装置包括发送分类单元，按照用于生成LDPC编码比特的校验矩阵的列顺序对构成LDPC编码信息的LDPC编码比特进行排序; 以及信号发送单元，其通过按照排序顺序从具有较低噪声电平的传输线分配LDPC编码比特来发送由发送分类单元排序的LDPC编码比特。

公开(公告)号：US08514963B2

公开(公告)日：2013-08-20

申请号：US12810638

申请日：2008-12-25

申请人： Wataru Matsumoto ,  Shigeru Uchida ,  Toshiyuki Kuze ,  Hideo Yoshida

发明人： Wataru Matsumoto ,  Shigeru Uchida ,  Toshiyuki Kuze ,  Hideo Yoshida

IPC分类号： H04B7/02

CPC分类号： H04L1/1812 ,  H04B7/0413 ,  H04L1/0656 ,  H04L1/1816

摘要： When an error correction decoding unit 26 of a data reception device 2 fails in error correction decoding of a codeword, an MIMO processing unit 15 of a data transmission device 1 deforms transmitted codewords according to a predetermined rule, and transmits the codewords, and the error correction decoding unit 26 of the data reception device 2 reproduces data by using the deformed codewords. As a result, not only the noise but the interference wave components can be reduced, and the success rates of the demodulation and error correction decoding can be improved greatly.

摘要翻译： 当数据接收装置2的纠错解码单元26对码字的纠错解码失败时，数据传输装置1的MIMO处理单元15根据预定规则使发送的码字变形，并发送码字，并且发送错误 数据接收装置2的校正解码单元26通过使用变形的码字再现数据。 结果，不仅可以降低噪声而且可以降低干扰波分量，而且可以大大提高解调和纠错解码的成功率。

公开(公告)号：US20110154151A1

公开(公告)日：2011-06-23

申请号：US13002342

申请日：2009-06-26

申请人： Wataru Matsumoto ,  Hideo Yoshida

发明人： Wataru Matsumoto ,  Hideo Yoshida

IPC分类号： H03M13/11 ,  G06F11/10

CPC分类号： H03M13/116 ,  H03M13/1168

摘要： A check matrix creation device includes a circulant permutation matrix setting unit 12 for preparing a plurality of circulant permutation matrices each having an inner diameter of six or larger, and a quasi-cyclic matrix creation unit 13 for arranging the plurality of circulant permutation matrices prepared by the circulant permutation matrix setting unit 12 both in a row direction and in a column direction to create a quasi-cyclic matrix.

摘要翻译： 校验矩阵创建装置包括：循环置换矩阵设置单元12，用于准备多个具有六个或更大内径的循环置换矩阵;以及准循环矩阵创建单元13，用于布置由 循环置换矩阵设置单元12在行方向和列方向上以产生准循环矩阵。

公开(公告)号：US20090290544A1

公开(公告)日：2009-11-26

申请号：US12091548

申请日：2006-12-08

申请人： Yasuhiro Yano ,  Wataru Matsumoto ,  Noriyuki Fukui

发明人： Yasuhiro Yano ,  Wataru Matsumoto ,  Noriyuki Fukui

IPC分类号： H04W72/12 ,  H03M13/00

CPC分类号： H04L1/0009 ,  H03M13/09 ,  H03M13/1148 ,  H03M13/23 ,  H03M13/2906 ,  H03M13/353 ,  H03M13/356 ,  H03M13/616 ,  H03M13/6306 ,  H03M13/6393 ,  H04L1/0003 ,  H04L1/0041 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/007 ,  H04L5/006 ,  H04L2001/0098

摘要： A communication method that performs low density parity check (LDPC) coding to a data stream to be transmitted in a radio communication system by using a parity check matrix that has columns with uneven column degrees. The columns are arranged in a descending order of the column degrees. The communication method includes segmenting a code word into a plurality of data streams depending on number of data bits that are assignable to a radio resource block that is a unit of radio transmission, and assigning a segmented data stream having a higher column degree to a radio resource block with higher quality.

摘要翻译： 对通过使用具有不均匀列数的列的奇偶校验矩阵在无线通信系统中发送的数据流进行低密度奇偶校验（LDPC）编码的通信方法。 列以列度的降序排列。 通信方法包括根据可分配给作为无线电传输单元的无线电资源块的数据比特数，将码字分割为多个数据流，并将具有较高列度的分段数据流分配给无线电 资源块质量较高。

公开(公告)号：US07461322B2

公开(公告)日：2008-12-02

申请号：US10482486

申请日：2003-02-07

申请人： Wataru Matsumoto

发明人： Wataru Matsumoto

IPC分类号： H03M13/00

CPC分类号： H04L1/005 ,  H03M13/1111 ,  H03M13/118 ,  H03M13/1194 ,  H03M13/2957 ,  H03M13/33 ,  H04L1/0046 ,  H04L1/0057

摘要： A communication system according to the present invention comprises a transmitter for performing low-density parity-check (LDPC) coding and a receiver for performing LDPC decoding based on the “Sum-Product algorithm”, and performing a synchronous control and a user detection by using a sum of absolute values of logarithm likelihood ratio of the posterior probability of each bit that is output as a decoding result.

摘要翻译： 根据本发明的通信系统包括：用于执行低密度奇偶校验（LDPC）编码的发射机和基于“求和乘法算法”执行LDPC解码的接收机，并且通过以下步骤执行同步控制和用户检测 使用作为解码结果输出的每个比特的后验概率的对数似然比的绝对值之和。