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公开(公告)号：US20130139038A1
公开(公告)日：2013-05-30
申请号：US13814219
申请日：2011-08-03
申请人： Naoya Yosoku , Shutai Okamura
发明人： Naoya Yosoku , Shutai Okamura
IPC分类号： H03M13/13
CPC分类号： H03M13/13 , H03M13/1111 , H03M13/1131 , H03M13/1137 , H03M13/116 , H03M13/1188 , H03M13/616 , H03M13/6527
摘要： The error correcting decoding device of the present invention performs Low-Density Parity-Check (LDPC) decoding which accommodates a plurality of code rates while sharing circuits to suppress increase in circuit scale. If the set code rate is a second code rate which is a higher code rate than a first code rate, a column processing and row processing calculating unit (120A) uses a distributed submatrix in which a number of columns are selected and combined, wherein the number of columns is equal in number to the number of columns with which a first submatrix is constructed from a distributed check matrix corresponding to a second check matrix which accommodates the second code rate. At this time, the column processing and row processing calculating unit (120A) uses a distributed submatrix such that the row degree is less than or equal to the row degree of the first submatrix.
摘要翻译： 本发明的纠错解码装置执行低密度奇偶校验（LDPC）解码，该解码容纳多个码率，同时共享电路以抑制电路规模的增加。 如果设定码率是比第一码率高的码率的第二码率，列处理和行处理计算单元（120A）使用其中选择并组合列数的分布子矩阵，其中， 列数与从适应第二代码率的第二校验矩阵相对应的分布式校验矩阵构成第一子矩阵的列数相等。 此时，列处理和行处理计算单元（120A）使用分散子矩阵，使得行度小于或等于第一子矩阵的行度。
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公开(公告)号：US08286064B2
公开(公告)日：2012-10-09
申请号：US12738621
申请日：2008-10-30
IPC分类号： G06F11/00
CPC分类号： H03M13/1102 , H03M13/23 , H03M13/255 , H03M13/356 , H03M13/373 , H03M13/6362 , H04L1/005 , H04L1/0057 , H04L1/0059 , H04L1/0069 , H04L1/0071 , H04L1/06 , H04L5/0044 , H04L27/2626 , H04L27/3422
摘要： Provided is a transmission device which improves the error rate characteristic upon decoding when performing error correction encoding by using a self-orthogonal code or an LDPC-CC in a communication system using a communication path having a fading fluctuation, multi-value modulation, or MIMO transmission. In the transmission device, the self-orthogonal encoding unit (110) encodes a self-orthogonal code having a constriction length K and an interleave unit (130) rearranges a code word sequence so that the same modulation symbol includes an information bit of a moment i and a non-correlated bit of the information bit of the moment i in a multi-value modulation unit (150).
摘要翻译： 提供一种传输装置，其在使用具有衰落波动，多值调制或MIMO的通信路径的通信系统中通过使用自正交码或LDPC-CC进行纠错编码时，提高解码时的错误率特性 传输。 在发送装置中，自正交编码单元（110）编码具有收缩长度K的自正交码和交织单元（130）重新排列码字序列，使得相同的调制符号包括一个信息位 i和多值调制单元（150）中的时刻i的信息比特的非相关比特。
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公开(公告)号：US20100180176A1
公开(公告)日：2010-07-15
申请号：US12377107
申请日：2007-08-31
申请人： Naoya Yosoku , Shutai Okamura , Yutaka Murakami
发明人： Naoya Yosoku , Shutai Okamura , Yutaka Murakami
CPC分类号： H03M13/1188 , H03M13/1185
摘要： An encoding method by which an encoding speed is improved is disclosed. An encoder (100) comprises an input data storage section (107) for outputting the stored input data (D100) according to an output control signal (108), an input data count section (101) for counting the inputs of input data (D100), an output control section (102) for controlling the output destination of the input data (D100) according to the input counts, one-bit storage sections (103-1 to 103-(N−K)) for holding one-bit data, row-vector storage sections (104-1 to 104-K) for holding row vectors of an LDPC code creation matrix, vector multiplying sections (105-1 to 105-K) for multiplying a row vector and a column vector, a parity storage section (109) for holding a parity created by the multiplication, and an LDPC code-word series creating section (106); for creating an LDPC code word from the input data series and parity series and outputting it.
摘要翻译： 公开了一种提高编码速度的编码方法。 编码器（100）包括输入数据存储部（107），用于根据输出控制信号（108）输出所存储的输入数据（D100）;输入数据计数部分（101），用于对输入数据（D100 ），用于根据输入计数控制输入数据（D100）的输出目的地的输出控制部分（102），用于保持一位的一位存储部分（103-1至103-（N-K）） 用于保持LDPC码产生矩阵的行向量的数据，行向量存储部分（104-1至104-K），用于乘以行向量和列向量的向量相乘部分（105-1至105-K）， 奇偶校验存储部（109），用于保持乘法生成的奇偶校验; LDPC码字序列生成部（106）; 用于从输入数据序列和奇偶校验序列创建LDPC码字并将其输出。
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公开(公告)号：US08996965B2
公开(公告)日：2015-03-31
申请号：US13814219
申请日：2011-08-03
申请人： Naoya Yosoku , Shutai Okamura
发明人： Naoya Yosoku , Shutai Okamura
CPC分类号： H03M13/13 , H03M13/1111 , H03M13/1131 , H03M13/1137 , H03M13/116 , H03M13/1188 , H03M13/616 , H03M13/6527
摘要： The error correcting decoding device of the present invention performs Low-Density Parity-Check (LDPC) decoding which accommodates a plurality of code rates while sharing circuits to suppress increase in circuit scale. If the set code rate is a second code rate which is a higher code rate than a first code rate, a column processing and row processing calculating unit (120A) uses a distributed submatrix in which a number of columns are selected and combined, wherein the number of columns is equal in number to the number of columns with which a first submatrix is constructed from a distributed check matrix corresponding to a second check matrix which accommodates the second code rate. At this time, the column processing and row processing calculating unit (120A) uses a distributed submatrix such that the row degree is less than or equal to the row degree of the first submatrix.
摘要翻译： 本发明的纠错解码装置执行低密度奇偶校验（LDPC）解码，该解码容纳多个码率，同时共享电路以抑制电路规模的增加。 如果设定码率是比第一码率高的码率的第二码率，列处理和行处理计算单元（120A）使用其中选择并组合列数的分布子矩阵，其中， 列数与从适应第二代码率的第二校验矩阵相对应的分布式校验矩阵构成第一子矩阵的列数相等。 此时，列处理和行处理计算单元（120A）使用分散子矩阵，使得行度小于或等于第一子矩阵的行度。
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公开(公告)号：US20100251061A1
公开(公告)日：2010-09-30
申请号：US12738621
申请日：2008-10-30
CPC分类号： H03M13/1102 , H03M13/23 , H03M13/255 , H03M13/356 , H03M13/373 , H03M13/6362 , H04L1/005 , H04L1/0057 , H04L1/0059 , H04L1/0069 , H04L1/0071 , H04L1/06 , H04L5/0044 , H04L27/2626 , H04L27/3422
摘要： Provided is a transmission device which improves the error rate characteristic upon decoding when performing error correction encoding by using a self-orthogonal code or an LDPC-CC in a communication system using a communication path having a fading fluctuation, multi-value modulation, or MIMO transmission. In the transmission device, the self-orthogonal encoding unit (110) encodes a self-orthogonal code having a constriction length K and an interleave unit (130) rearranges a code word sequence so that the same modulation symbol includes an information bit of a moment i and a non-correlated bit of the information bit of the moment i in a multi-value modulation unit (150).
摘要翻译： 提供一种传输装置，其在使用具有衰落波动，多值调制或MIMO的通信路径的通信系统中通过使用自正交码或LDPC-CC进行纠错编码时，提高解码时的错误率特性 传输。 在发送装置中，自正交编码单元（110）编码具有收缩长度K的自正交码和交织单元（130）重新排列码字序列，使得相同的调制符号包括一个信息位 i和多值调制单元（150）中的时刻i的信息比特的非相关比特。
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公开(公告)号：US20100103919A1
公开(公告)日：2010-04-29
申请号：US12523497
申请日：2008-01-18
申请人： Yutaka Murakami , Naoya Yosoku
发明人： Yutaka Murakami , Naoya Yosoku
IPC分类号： H04B7/208
CPC分类号： H04L1/06 , H04J11/00 , H04L1/0003 , H04L1/0041 , H04L1/0071 , H04L1/1893 , H04L5/003 , H04L5/006 , H04W72/0453
摘要： When the SC-FDMA method is used in combination with the multi-antenna transmission technique, a radio transmission method effectively improves the frequency use efficiency by performing appropriate frequency allocation to a plurality of antennas while suppressing degradation of the reception quality caused by interference. In the radio transmission method of the SC-FDMA type, according to the number of terminals simultaneously accessing a base station within a usable frequency band, it is possible to allocate all the transmission signals (transmission stream) to be transmitted by different antennas to different frequency bands or to use the MIMO transmission in combination. Moreover, according to the number of terminals making an access, the number of terminals which perform the MIMO transmission can be varied.
摘要翻译： 当将SC-FDMA方法与多天线传输技术结合使用时，通过对多个天线进行适当的频率分配，同时抑制由干扰引起的接收质量的劣化，无线传输方法有效地提高了频率使用效率。 在SC-FDMA类型的无线电传输方法中，根据在可用频带内同时访问基站的终端数量，可以将由不同天线发送的所有传输信号（传输流）分配给不同的天线 频带或组合使用MIMO传输。 此外，根据进行接入的终端的数量，可以改变执行MIMO传输的终端的数量。
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公开(公告)号：US09191046B2
公开(公告)日：2015-11-17
申请号：US13814902
申请日：2012-02-07
CPC分类号： H04B1/1027 , H04L25/022 , H04L25/0224 , H04L25/03159 , H04L27/2636 , H04L27/2644 , H04L27/265 , H04L27/2655 , H04L27/2672 , H04L27/2675 , H04L2025/03414
摘要： An FFT unit subjects a P-times oversampling output of an AD converter to Fourier transform into a frequency domain signal. A distortion estimation unit estimates a distortion characteristic from a difference between the frequency domain signal and a reference signal. A correction coefficient calculation unit calculates a correction coefficient of a distortion characteristic. A correction unit corrects the frequency domain signal by using the correction coefficient. An IFFT unit subjects the corrected frequency domain signal to inverse Fourier into a time domain signal having the same sampling speed as a symbol speed, and outputs a partial time series.
摘要翻译： FFT单元对AD转换器的P倍过采样输出进行傅里叶变换成频域信号。 失真估计单元从频域信号和参考信号之间的差估计失真特性。 校正系数计算单元计算失真特性的校正系数。 校正单元通过使用校正系数校正频域信号。 IFFT单元将经校正的频域信号逆傅里叶变换成具有与符号速度相同的采样速度的时域信号，并输出部分时间序列。
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公开(公告)号：US08681715B2
公开(公告)日：2014-03-25
申请号：US12523497
申请日：2008-01-18
申请人： Yutaka Murakami , Naoya Yosoku
发明人： Yutaka Murakami , Naoya Yosoku
CPC分类号： H04L1/06 , H04J11/00 , H04L1/0003 , H04L1/0041 , H04L1/0071 , H04L1/1893 , H04L5/003 , H04L5/006 , H04W72/0453
摘要： When the SC-FDMA method is used in combination with the multi-antenna transmission technique, a radio transmission method effectively improves the frequency use efficiency by performing appropriate frequency allocation to a plurality of antennas while suppressing degradation of the reception quality caused by interference. In the radio transmission method of the SC-FDMA type, according to the number of terminals simultaneously accessing a base station within a usable frequency band, it is possible to allocate all the transmission signals (transmission stream) to be transmitted by different antennas to different frequency bands or to use the MIMO transmission in combination. Moreover, according to the number of terminals making an access, the number of terminals which perform the MIMO transmission can be varied.
摘要翻译： 当将SC-FDMA方法与多天线传输技术结合使用时，通过对多个天线进行适当的频率分配，同时抑制由干扰引起的接收质量的劣化，无线传输方法有效地提高了频率使用效率。 在SC-FDMA类型的无线电传输方法中，根据在可用频带内同时访问基站的终端数量，可以将由不同天线发送的所有传输信号（传输流）分配给不同的天线 频带或组合使用MIMO传输。 此外，根据进行接入的终端的数量，可以改变执行MIMO传输的终端的数量。
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公开(公告)号：US08989100B2
公开(公告)日：2015-03-24
申请号：US13814864
申请日：2012-02-06
申请人： Naganori Shirakata , Naoya Yosoku
发明人： Naganori Shirakata , Naoya Yosoku
CPC分类号： H04W52/18 , H04W52/028 , Y02D70/142 , Y02D70/144
摘要： A transmission power controller turns on a power supply to a transmitter at a given time taking a power rise time into account before a start time of transmission processing in the transmitter, and turns off the power supply to the transmitter when the transmission processing is finished. A reception power controller turns on a power supply to a receiver at a given time taking a power rise time into account before a time at which an ACK is assumed to be arrival from a wireless communication device on a receiver side responsive to data transmitted from the transmitter, and turns off the power supply to the receiver when the reception processing of the ACK in the receiver is finished.
摘要翻译： 发送功率控制器在给定时间接通发送机的电源，在发送器的发送处理的开始时间之前考虑上电时间，并且在发送处理结束时关闭向发送机的电力供应。 接收功率控制器在给定时间开启对接收机的电源，在考虑到在从接收机侧的无线通信设备到达ACK的时间之前考虑上电时间，响应于从 发送器，并且当接收器中的ACK的接收处理完成时，关闭接收器的电源。
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公开(公告)号：US20130136165A1
公开(公告)日：2013-05-30
申请号：US13814902
申请日：2012-02-07
IPC分类号： H04B1/10
CPC分类号： H04B1/1027 , H04L25/022 , H04L25/0224 , H04L25/03159 , H04L27/2636 , H04L27/2644 , H04L27/265 , H04L27/2655 , H04L27/2672 , H04L27/2675 , H04L2025/03414
摘要： An FFT unit subjects a P-times oversampling output of an AD converter to Fourier transform into a frequency domain signal. A distortion estimation unit estimates a distortion characteristic from a difference between the frequency domain signal and a reference signal. A correction coefficient calculation unit calculates a correction coefficient of a distortion characteristic. A correction unit corrects the frequency domain signal by using the correction coefficient. An IFFT unit subjects the corrected frequency domain signal to inverse Fourier into a time domain signal having the same sampling speed as a symbol speed, and outputs a partial time series.
摘要翻译： FFT单元对AD转换器的P倍过采样输出进行傅里叶变换成频域信号。 失真估计单元从频域信号和参考信号之间的差估计失真特性。 校正系数计算单元计算失真特性的校正系数。 校正单元通过使用校正系数校正频域信号。 IFFT单元将经校正的频域信号逆傅里叶变换成具有与符号速度相同的采样速度的时域信号，并输出部分时间序列。
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