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1. 发明授权

US08644424B2 Receiver apparatus, communication system, reception method and communication method 有权
标题翻译：接收装置，通信系统，接收方式和通信方式
公开(公告)号：US08644424B2
公开(公告)日：2014-02-04
申请号：US13201234
申请日：2010-02-12
申请人： Takashi Yoshimoto , Minoru Kubota , Naoki Okamoto , Hiroshi Suzuki , Kazuhiko Fukawa , Satoshi Suyama
发明人： Takashi Yoshimoto , Minoru Kubota , Naoki Okamoto , Hiroshi Suzuki , Kazuhiko Fukawa , Satoshi Suyama
IPC分类号： H03D3/00
CPC分类号： H04L27/3863 , H04L27/0014 , H04L27/2337 , H04L2027/0026
摘要： A receiver apparatus receiving a quadrature-modulated, modulated wave, includes: a real-zero signal generator for adding a sinusoidal wave to the modulated wave to generate a real-zero signal; an in-phase and quadrature component detector for extracting an in-phase component signal and a quadrature component signal from the real-zero signal; a real-zero sequence generator for generating a real-zero sequence as a sequence of time points at which the in-phase component and quadrature component signals become zero; and a signal reconstruction unit for reproducing the in-phase component and quadrature component from the real-zero sequence. It is possible to provide a receiving apparatus that enables decoding of a received signal with high precision even when sufficient linearity cannot be secured in the analog circuit of the receiver apparatus.
摘要翻译：一种接收正交调制调制波的接收机装置，包括：实零信号发生器，用于将正弦波加到调制波上以产生实零信号; 同相和正交分量检测器，用于从实零信号中提取同相分量信号和正交分量信号; 用于产生实零序列作为同相分量和正交分量信号变为零的时间点序列的实零序列发生器; 以及信号重建单元，用于从实零序列再现同相分量和正交分量。即使在接收装置的模拟电路中不能确保足够的线性度的情况下，也能够提供能够高精度地对接收信号进行解码的接收装置。

2. 发明申请

US20110292984A1 RECEIVER APPARATUS, COMMUNICATION SYSTEM, RECEPTION METHOD AND COMMUNICATION METHOD 有权
标题翻译：接收装置，通信系统，接收方法和通信方法
公开(公告)号：US20110292984A1
公开(公告)日：2011-12-01
申请号：US13201234
申请日：2010-02-12
申请人： Takashi Yoshimoto , Minoru Kubota , Naoki Okamoto , Hiroshi Suzuki , Kazuhiko Fukawa , Satoshi Suyama
发明人： Takashi Yoshimoto , Minoru Kubota , Naoki Okamoto , Hiroshi Suzuki , Kazuhiko Fukawa , Satoshi Suyama
IPC分类号： H04L27/06 , H04L27/08 , H04L27/28 , H04B17/00
CPC分类号： H04L27/3863 , H04L27/0014 , H04L27/2337 , H04L2027/0026
摘要： A receiver apparatus 200 receiving a quadrature-modulated, modulated wave, includes: a real-zero signal generator 205 for adding a sinusoidal wave to the modulated wave to generate a real-zero signal; an in-phase and quadrature component detector 206 for extracting an in-phase component signal and a quadrature component signal from the real-zero signal; a real-zero sequence generator 207 for generating a real-zero sequence as a sequence of time points at which the in-phase component and quadrature component signals become zero; and a signal reconstruction unit 208 for reproducing the in-phase component and quadrature component from the real-zero sequence. With this, it is possible to provide a receiving apparatus etc. that enables decoding of a received signal with high precision even when sufficient linearity cannot be secured in the analog circuit of the receiver apparatus.
摘要翻译：接收正交调制调制波的接收机装置200包括：实零信号发生器205，用于将正弦波加到调制波上以产生实零信号; 用于从实零信号中提取同相分量信号和正交分量信号的同相和正交分量检测器206; 用于产生实零序列作为同相分量和正交分量信号变为零的时间点序列的实零序发生器207; 以及用于从实零序列再现同相分量和正交分量的信号重构单元208。由此，即使在接收装置的模拟电路中不能确保足够的线性度的情况下，也可以提供能够高精度地对接收信号进行解码的接收装置等。

3. 发明申请

US20140192936A1 RECEIVING DEVICE, RECEIVING METHOD, AND RECEIVING PROGRAM 有权
标题翻译：接收设备，接收方法和接收程序
公开(公告)号：US20140192936A1
公开(公告)日：2014-07-10
申请号：US14237601
申请日：2012-08-06
申请人： Kazuhiko Fukawa , Hiroshi Suzuki , Satoshi Suyama , Ryota Yamada , Takashi Yoshimoto , Naoki Okamoto
发明人： Kazuhiko Fukawa , Hiroshi Suzuki , Satoshi Suyama , Ryota Yamada , Takashi Yoshimoto , Naoki Okamoto
IPC分类号： H04L1/00 , H04B7/04
CPC分类号： H04L1/0054 , H04B7/0413 , H04B7/0854
摘要： To provide a receiving device, a receiving method, and a receiving program, which are capable of reducing performance degradation in a case where the spatial correlation of a channel becomes high.A transmission signal candidate search unit searches for a transmission signal in a direction in which reception performance is degraded, in MIMO signal detection. A transmission signal candidate generation unit generates transmission signal candidates while suppressing degradation due to the spatial correlation of a channel. In a decision unit, using the transmission signal candidates generated in the transmission signal candidate generation unit, a maximum likelihood sequence is obtained. The maximum likelihood sequence is obtained as transmission signal candidates where a metric is calculated and the metric becomes a minimum.
摘要翻译：提供一种在信道的空间相关性变高的情况下能够降低性能下降的接收装置，接收方法和接收程序。在MIMO信号检测中，发送信号候选搜索部在接收性能下降的方向上搜索发送信号。传输信号候补生成单元在抑制由于信道的空间相关性引起的劣化的同时，生成发送信号候补。在决定单元中，使用在发送信号候选生成单元中生成的发送信号候选，获得最大似然序列。获得最大似然序列作为传输信号候选，其中计算度量并且度量变得最小。

4. 发明授权

US09008211B2 Receiving device, receiving method, and receiving program 有权
标题翻译：接收设备，接收方法和接收程序
公开(公告)号：US09008211B2
公开(公告)日：2015-04-14
申请号：US14237601
申请日：2012-08-06
申请人： Kazuhiko Fukawa , Hiroshi Suzuki , Satoshi Suyama , Ryota Yamada , Takashi Yoshimoto , Naoki Okamoto
发明人： Kazuhiko Fukawa , Hiroshi Suzuki , Satoshi Suyama , Ryota Yamada , Takashi Yoshimoto , Naoki Okamoto
IPC分类号： H04L1/00 , H04B7/08 , H04B7/04
CPC分类号： H04L1/0054 , H04B7/0413 , H04B7/0854
摘要： A receiving device, a receiving method, and a receiving program are provided and are capable of reducing performance degradation in a case where the spatial correlation of a channel becomes high. A transmission signal candidate search unit searches for a transmission signal in a direction in which reception performance is degraded, in MIMO signal detection. A transmission signal candidate generation unit generates transmission signal candidates while suppressing degradation due to the spatial correlation of a channel. In a decision unit, using the transmission signal candidates generated in the transmission signal candidate generation unit, a maximum likelihood sequence is obtained. The maximum likelihood sequence is obtained as transmission signal candidates where a metric is calculated and the metric becomes a minimum.
摘要翻译：提供接收装置，接收方法和接收程序，并且能够在信道的空间相关性变高的情况下降低性能下降。在MIMO信号检测中，发送信号候选搜索部在接收性能下降的方向上搜索发送信号。传输信号候补生成单元在抑制由于信道的空间相关性引起的劣化的同时，生成发送信号候补。在决定单元中，使用在发送信号候选生成单元中生成的发送信号候选，获得最大似然序列。获得最大似然序列作为传输信号候选，其中计算度量并且度量变得最小。

5. 发明申请

US20120099679A1 RECEIVING APPARATUS AND RECEIVING METHOD 审中-公开
标题翻译：接收装置和接收方法
公开(公告)号：US20120099679A1
公开(公告)日：2012-04-26
申请号：US13322169
申请日：2010-05-25
申请人： Ryota Yamada , Katsuya Kato , Takashi Yoshimoto , Hiroshi Suzuki , Kazuhiko Fukawa , Satoshi Suyama
发明人： Ryota Yamada , Katsuya Kato , Takashi Yoshimoto , Hiroshi Suzuki , Kazuhiko Fukawa , Satoshi Suyama
IPC分类号： H04L27/06
CPC分类号： H04L25/0228 , H04B7/0413 , H04J11/0063 , H04L25/0204
摘要： A receiving apparatus and reception method reduces degradation due to multipath interference without increasing the amount of computation even in a system that has a large number of subcarriers. A signal detector, using the symbol replica generated by symbol replica generator and the channel estimate which a channel estimator estimated based on the received pilot signal, suppresses interference attributed to delayed waves exceeding the GI and outputs a suppressed signal for the received signal. A demodulator decodes the signal of which interference has been alleviated, to determine code bit LLR as bit likelihood information. A decoder performs an error correction decoding process on the input code bit LLR. If no error exists in the result of error correction decoding, the decoder outputs information bits to complete the reception process. If there is an error in the decoded result, the decoder outputs the code bit LLR to symbol replica generator.
摘要翻译：即使在具有大量子载波的系统中，接收装置和接收方法也减少了由于多路径干扰导致的劣化，而不增加计算量。信号检测器利用由符号复制产生器产生的符号副本和基于接收到的导频信号估计的信道估计器的信道估计，抑制归因于超过GI的延迟波的干扰，并输出接收信号的抑制信号。解调器解码干扰已被减轻的信号，以便将码位LLR确定为比特似然信息。解码器对输入码位LLR执行纠错解码处理。如果在纠错解码结果中没有错误，则解码器输出信息比特以完成接收处理。如果解码结果存在错误，则解码器将码位LLR输出到码元复制发生器。

6. 发明授权

US08218671B2 Receiving apparatus, receiving method and communication system 有权
标题翻译：接收装置，接收方式和通信系统
公开(公告)号：US08218671B2
公开(公告)日：2012-07-10
申请号：US12866175
申请日：2009-02-04
申请人： Kazuhiko Fukawa , Hiroshi Suzuki , Satoshi Suyama , Ryota Yamada , Naoki Okamoto
发明人： Kazuhiko Fukawa , Hiroshi Suzuki , Satoshi Suyama , Ryota Yamada , Naoki Okamoto
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04L25/03171 , H04L2025/03426
摘要： To obtain excellent reception performance while cutting down the amount of computing operation in a MIMO communication system using soft-decision error correction coding. Received waves picked up by receiving antennas 401-1 to 401-R are converted from the radio frequency to the baseband signal by respective receivers 402-1 to 402-R to be output as a received signal. A signal detector 403 calculates bit LLRs of the transmitted signal based on the received signal and the channel-estimated values obtained from a channel estimator 404. The bit LLRs output from signal detector 403 are rearranged by deinterleaver units 405-1 to 405-T in the patterns opposite to the patterns in which interleaving was performed on the transmission side. The bit LLRs after de-interleaving are subjected to an error correction decoding process through decoders 406-1 to 406-T. The bit sequences after decoding are parallel-to-serial converted by a parallel-to-serial converter 407 so that the detected transmission bit sequence is output.
摘要翻译：为了获得良好的接收性能，同时在使用软判决纠错编码的MIMO通信系统中减少计算操作量。由接收天线401-1至401-R拾取的接收波由各接收器402-1至402-R从射频转换为基带信号，以作为接收信号输出。信号检测器403基于从信道估计器404获得的接收信号和信道估计值来计算发送信号的比特LLR。从信号检测器403输出的比特LLR由解交织器单元405-1至405-T重新排列与在发送侧执行交织的模式相反的模式。解交织后的比特LLR经由解码器406-1至406-T进行纠错解码处理。解码后的比特序列由并行到串行转换器407并行 - 串行转换，从而输出所检测的传输比特序列。

7. 发明申请

US20100316151A1 RECEIVING APPARATUS, RECEIVING METHOD AND COMMUNICATION SYSTEM 有权
标题翻译：接收装置，接收方法和通信系统
公开(公告)号：US20100316151A1
公开(公告)日：2010-12-16
申请号：US12866175
申请日：2009-02-04
申请人： Kazuhiko Fukawa , Hiroshi Suzuki , Satoshi Suyama , Ryuta Yamada , Naoki Okamoto
发明人： Kazuhiko Fukawa , Hiroshi Suzuki , Satoshi Suyama , Ryuta Yamada , Naoki Okamoto
IPC分类号： H04L27/28
CPC分类号： H04L25/03171 , H04L2025/03426
摘要： To obtain excellent reception performance whilst cutting down the amount of computing operation in a MIMO communication system using soft-decision error correction coding. Received waves picked up by receiving antennas 401-1 to 401-R are converted from the radio frequency to the baseband signal by respective receivers 402-1 to 402-R to be output as a received signal. A signal detector 403 calculates bit LLRs of the transmitted signal based on the received signal and the channel-estimated values obtained from a channel estimator 404. The bit LLRs output from signal detector 403 are rearranged by deinterleaver units 405-1 to 405-T in the patterns opposite to the patterns in which interleaving was performed on the transmission side. The bit LLRs after de-interleaving are subjected to an error correction decoding process through decoders 406-1 to 406-T. The bit sequences after decoding are parallel-to-serial converted by a parallel-to-serial converter 407 so that the detected transmission bit sequence is output.
摘要翻译：为了获得良好的接收性能，同时在使用软判决纠错编码的MIMO通信系统中减少计算操作的量。由接收天线401-1至401-R拾取的接收波由各接收器402-1至402-R从射频转换为基带信号，以作为接收信号输出。信号检测器403基于从信道估计器404获得的接收信号和信道估计值来计算发送信号的比特LLR。从信号检测器403输出的比特LLR由解交织器单元405-1至405-T重新排列与在发送侧执行交织的模式相反的模式。解交织后的比特LLR经由解码器406-1至406-T进行纠错解码处理。解码后的比特序列由并行到串行转换器407并行 - 串行转换，从而输出所检测的传输比特序列。

8. 发明申请

US20080008126A1 WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD 审中-公开
标题翻译：无线通信设备和无线通信方法
公开(公告)号：US20080008126A1
公开(公告)日：2008-01-10
申请号：US11774394
申请日：2007-07-06
申请人： Masashige SHIRAKABE , Takahiro Asai , Naoto Matoba , Hitoshi Yoshino , Satoshi Suyama , Kazuhiko Fukawa , Hiroshi Suzuki
发明人： Masashige SHIRAKABE , Takahiro Asai , Naoto Matoba , Hitoshi Yoshino , Satoshi Suyama , Kazuhiko Fukawa , Hiroshi Suzuki
IPC分类号： H04Q7/00
CPC分类号： H04B7/2615 , H04W72/1263 , H04W84/047 , H04W92/10
摘要： An object is to provide a wireless communication device and a wireless communication method enabling improvement of communication efficiency. A communication control portion of a mobile station determines, in a procedure prior to data communication with a base station, a time interval for performing data transmission/reception with the base station. In the time interval determined by the communication control portion, a digital baseband circuit 107 executes control so as to perform data transmission as well as data reception.
摘要翻译：目的在于提供能够提高通信效率的无线通信装置和无线通信方法。移动台的通信控制部分在与基站进行数据通信之前的过程中，确定用于与基站进行数据发送/接收的时间间隔。在由通信控制部确定的时间间隔中，数字基带电路107执行控制，以便执行数据传输以及数据接收。

9. 发明授权

US07848711B2 Radio communication apparatus and radio communication method 有权
标题翻译：无线电通信装置和无线电通信方法
公开(公告)号：US07848711B2
公开(公告)日：2010-12-07
申请号：US11694124
申请日：2007-03-30
申请人： Takahiro Asai , Hui Shi , Hiromasa Fujii , Takefumi Yamada , Hitoshi Yoshino , Hiroshi Suzuki , Kazuhiko Fukawa , Satoshi Suyama
发明人： Takahiro Asai , Hui Shi , Hiromasa Fujii , Takefumi Yamada , Hitoshi Yoshino , Hiroshi Suzuki , Kazuhiko Fukawa , Satoshi Suyama
IPC分类号： H04B1/50 , H04B1/10
CPC分类号： H04B1/525
摘要： A radio communication apparatus for performing transmission and reception based on radio communication includes: a power suppressor for coupling loop interference signal for attenuating signal power of a received signal to suppress the coupling loop interference signal power of the received signal; and a transceiver having a coupling loop interference signal removal function for analog domain and/or a coupling loop interference signal removal function for digital domain, for removing a coupling loop interference signal contained in a signal output from the power suppressor for coupling loop interference signal.
摘要翻译：一种用于基于无线电通信进行发送和接收的无线电通信装置包括：功率抑制器，用于耦合环路干扰信号，用于衰减接收信号的信号功率，以抑制接收信号的耦合环路干扰信号功率; 以及具有用于模拟域的耦合环路干扰信号去除功能和/或用于数字域的耦合环路干扰信号去除功能的收发器，用于去除包含在从功率抑制器输出的用于耦合环路干扰信号的信号中的耦合环路干扰信号。

10. 发明授权

US07778611B2 Radio communication apparatus and radio communication method 有权
标题翻译：无线电通信装置和无线电通信方法
公开(公告)号：US07778611B2
公开(公告)日：2010-08-17
申请号：US11752714
申请日：2007-05-23
申请人： Takahiro Asai , Hui Shi , Hitoshi Yoshino , Satoshi Suyama , Kazuhiko Fukawa , Hiroshi Suzuki
发明人： Takahiro Asai , Hui Shi , Hitoshi Yoshino , Satoshi Suyama , Kazuhiko Fukawa , Hiroshi Suzuki
IPC分类号： H04B1/50 , H04B1/10
CPC分类号： H04B1/525 , H04B7/155
摘要： A radio communication apparatus for performing transmission and reception of radio communications simultaneously by using different carrier frequencies for transmission and reception, comprising: a transceiver having a coupling loop interference signal removal function for analog domain and/or a coupling loop interference signal removal function for digital domain, for removing a coupling loop interference signal contained in a signal; and a power suppressor for coupling loop interference signal for attenuating the signal power in order to suppress the coupling loop interference signal power that is contained in the signal.
摘要翻译：一种无线电通信装置，用于通过使用不同的载波频率同时进行无线电通信的发送和接收，用于发送和接收，包括：收发器，具有用于模拟域的耦合环路干扰信号去除功能和/或用于数字的耦合环路干扰信号去除功能域，用于去除包含在信号中的耦合环路干扰信号; 以及用于耦合环路干扰信号的功率抑制器，用于衰减信号功率，以便抑制信号中包含的耦合环路干扰信号功率。

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