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1. 发明申请

US20100103919A1 RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION DEVICE 有权
标题翻译：无线电通信方法和无线电通信设备
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。

2. 发明授权

US09191046B2 Reception device 有权
标题翻译：接收设备
公开(公告)号：US09191046B2
公开(公告)日：2015-11-17
申请号：US13814902
申请日：2012-02-07
申请人： Naganori Shirakata , Takenori Sakamoto , Naoya Yosoku
发明人： Naganori Shirakata , Takenori Sakamoto , Naoya Yosoku
IPC分类号： H04B1/10 , H04L25/02 , H04L25/03 , H04L27/26
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。

3. 发明授权

US08681715B2 Radio communication method and radio communication device 有权
标题翻译：无线电通信方法和无线电通信装置
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
IPC分类号： H04W4/00 , H04W72/00
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。

4. 发明申请

US20130139038A1 ERROR CORRECTING DECODING DEVICE AND ERROR CORRECTING DECODING METHOD 有权
标题翻译：错误纠正解码设备和错误修正解码方法
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。

5. 发明申请

US20140086229A1 WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD 有权
标题翻译：无线通信设备和无线通信方法
公开(公告)号：US20140086229A1
公开(公告)日：2014-03-27
申请号：US14110382
申请日：2013-02-27
申请人： Naoya Yosoku , Hiroyuki Yoshikawa , Naganori Shirakata
发明人： Naoya Yosoku , Hiroyuki Yoshikawa , Naganori Shirakata
IPC分类号： H04L29/06 , H04L25/03 , H04L1/00
CPC分类号： H04L69/22 , H03M13/1111 , H03M13/6325 , H03M13/6527 , H04L1/005 , H04L1/0057 , H04L1/0063 , H04L1/0072 , H04L25/03057
摘要： A demodulation section demodulates a received signal. A decoding section decodes an output from the demodulation section. A buffer temporarily stores a portion of the received signal. A header analyzing section gives the buffer timing at which demodulation and decoding of a payload of the received signal are initiated, on the basis of a result of combination of a plurality of header sequences included in a header of the received signal and results of processing of the demodulation section and the decoding section. An improved SNR is achieved by means of combination of the plurality of header sequences, so that an iterative decoding count used for decoding the header become smaller.
摘要翻译：解调部分对接收到的信号进行解调。解码部分解码来自解调部分的输出。缓冲器临时存储接收信号的一部分。报头分析部分根据包括在接收信号的报头中的多个标题序列的组合结果和处理结果的结果给出了接收信号的有效载荷的解调和解码的缓冲定时解调部分和解码部分。通过多个标题序列的组合来实现改进的SNR，从而用于解码报头的迭代解码计数变小。

6. 发明授权

US08422581B2 Multi-antenna transmission device, multi-antenna reception device, multi-antenna transmission method, multi-antenna reception method, terminal device, and base station device 有权
标题翻译：多天线发送装置，多天线接收装置，多天线发送方法，多天线接收方法，终端装置和基站装置
公开(公告)号：US08422581B2
公开(公告)日：2013-04-16
申请号：US12523481
申请日：2008-01-21
申请人： Naoya Yosoku , Yutaka Murakami
发明人： Naoya Yosoku , Yutaka Murakami
IPC分类号： H04B7/02
CPC分类号： H04B7/0689 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0023 , H04L25/0224 , H04L25/03343 , H04L27/368 , H04L2025/03426
摘要： Provided is a multi-antenna transmission device (400) which can perform MLD by using a simple configuration of a reception device in a MIMO-AMC system. The multi-antenna transmission device (400) includes common signal point mapping units (401, 402) for mapping data transmitted from different antennas (111, 112) in transmission scheme using MIMO spatial multiplexing, to common signal points shared by respective modulation methods. Thus, the arrangement of baseband signal points obtained by mapping a code word after channel encoding onto an IQ plane can be shared as common signal points shared by modulation methods. Accordingly, the reception device need not prepare a particular circuit for performing MLD calculation in accordance with a combination of the methods for modulating the signals which have been MIMO-space multiplexed. This can reduce the circuit size of the MLD calculation circuit.
摘要翻译：提供一种可以通过使用MIMO-AMC系统中的接收装置的简单配置来执行MLD的多天线发送装置（400）。多天线发送装置（400）包括用于将使用MIMO空间复用的传输方案中的不同天线（111,112）发送的数据映射到由各个调制方式共享的公共信号点的公共信号点映射单元（401,402）。因此，通过将通道编码之后的码字映射到IQ平面上而获得的基带信号点的布置可以被共享为由调制方法共享的公共信号点。因此，接收装置不需要根据用于调制已被MIMO空间多路复用的信号的方法的组合来准备用于执行MLD计算的特定电路。这可以减少MLD计算电路的电路尺寸。

7. 发明授权

US08286064B2 Transmission device 有权
标题翻译：传输设备
公开(公告)号：US08286064B2
公开(公告)日：2012-10-09
申请号：US12738621
申请日：2008-10-30
申请人： Shutai Okamura , Yutaka Murakami , Naoya Yosoku , Masayuki Orihashi
发明人： Shutai Okamura , Yutaka Murakami , Naoya Yosoku , Masayuki Orihashi
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。

8. 发明申请

US20100180176A1 ENCODING METHOD, ENCODER, AND TRANSMITTER 审中-公开
标题翻译：编码方法，编码器和发送器
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
IPC分类号： H03M13/05 , G06F11/10
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。

9. 发明授权

US08989100B2 Wireless communication device and semiconductor device 有权
标题翻译：无线通信设备和半导体设备
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
IPC分类号： H04W4/00 , H04W52/18 , H04W52/02
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。

10. 发明申请

US20130136165A1 RECEPTION DEVICE 有权
标题翻译：接收装置
公开(公告)号：US20130136165A1
公开(公告)日：2013-05-30
申请号：US13814902
申请日：2012-02-07
申请人： Naganori Shirakata , Takenori Sakamoto , Naoya Yosoku
发明人： Naganori Shirakata , Takenori Sakamoto , Naoya Yosoku
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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