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1. 发明授权

US08948317B2 Receiver apparatus, reception method, communication system, and communication method 有权
标题翻译：接收装置，接收方式，通信系统和通信方式
公开(公告)号：US08948317B2
公开(公告)日：2015-02-03
申请号：US13982912
申请日：2012-01-13
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H03D1/00 , H04L25/02 , H04L27/26
CPC分类号： H04L25/0212 , H04L25/022 , H04L27/2649
摘要： A receiver apparatus includes a channel estimator (b106) to perform channel estimation. The channel estimator includes an interim channel impulse estimating unit (b106-1) that calculates an interim channel impulse response estimation value, a path extracting unit (b106-3) that extracts a path for use in calculation of a channel impulse response estimation value from among paths forming the interim channel impulse response estimation values, a channel impulse response estimating unit (b106-4) that calculates the channel impulse response estimation value using the path extracted by the path extracting unit, and a frequency response estimating unit (b106-5) that converts the channel impulse response estimation value into a frequency response estimation value by time-frequency transforming the channel impulse response estimation value. In this way, a receiver apparatus capable of performing accurate channel estimation results.
摘要翻译：接收机装置包括执行信道估计的信道估计器（b106）。信道估计器包括计算中间信道脉冲响应估计值的临时信道脉冲估计单元（b106-1），提取用于计算信道脉冲响应估计值的路径的路径提取单元（b106-3）在形成中间信道脉冲响应估计值的路径中，使用由路径提取单元提取的路径计算信道脉冲响应估计值的信道脉冲响应估计单元（b106-4）和频率响应估计单元（b106-5）），其通过对信道脉冲响应估计值进行时间频率变换来将信道脉冲响应估计值转换为频率响应估计值。以这种方式，能够执行准确的信道估计结果的接收机装置。

2. 发明授权

US08824605B2 Receiving device, receiving method, receiving program, and processor 有权
标题翻译：接收设备，接收方法，接收程序和处理器
公开(公告)号：US08824605B2
公开(公告)日：2014-09-02
申请号：US13583187
申请日：2011-03-02
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L27/06 , H04L25/03 , H04B17/00
CPC分类号： H04L25/03006 , H04B17/309 , H04B17/345 , H04B17/391 , H04L2025/03414
摘要： A propagation channel estimation unit estimates a propagation channel estimation value. A symbol replica generation unit generates a symbol replica that is modulated symbol of a demodulated information. A signal extraction unit extracts, in an arbitrary time duration, each subcarrier component of a received signal in which an interference signal was removed, the extraction being made based on the propagation channel estimation value and the symbol replica. A demodulator demodulates a signal of each subcarrier component in the received signal, the demodulation being made based on signal during the time duration extracted by the signal extraction unit.
摘要翻译：传播路径估计单元估计传播路径估计值。符号副本生成单元生成作为解调信息的调制符号的码元副本。信号提取单元在任意的持续时间内，提取除去干扰信号的接收信号的各子载波分量，根据传播路径估计值和符号复制品进行提取。解调器解调接收信号中的每个子载波分量的信号，基于由信号提取单元提取的持续时间期间的信号进行解调。

3. 发明申请

US20130308733A1 RECEIVER APPARATUS, RECEPTION METHOD, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 有权
标题翻译：接收装置，接收方法，通信系统和通信方法
公开(公告)号：US20130308733A1
公开(公告)日：2013-11-21
申请号：US13982912
申请日：2012-01-13
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L25/02
CPC分类号： H04L25/0212 , H04L25/022 , H04L27/2649
摘要： A receiver apparatus includes a channel estimator (b106) to perform channel estimation. The channel estimator includes an interim channel impulse estimating unit (b106-1) that calculates an interim channel impulse response estimation value, a path extracting unit (b106-3) that extracts a path for use in calculation of a channel impulse response estimation value from among paths forming the interim channel impulse response estimation values, a channel impulse response estimating unit (b106-4) that calculates the channel impulse response estimation value using the path extracted by the path extracting unit, and a frequency response estimating unit (b106-5) that converts the channel impulse response estimation value into a frequency response estimation value by time-frequency transforming the channel impulse response estimation value. In this way, a receiver apparatus capable of performing accurate channel estimation results.
摘要翻译：接收机装置包括执行信道估计的信道估计器（b106）。信道估计器包括计算中间信道脉冲响应估计值的临时信道脉冲估计单元（b106-1），提取用于计算信道脉冲响应估计值的路径的路径提取单元（b106-3）在形成中间信道脉冲响应估计值的路径中，使用由路径提取单元提取的路径计算信道脉冲响应估计值的信道脉冲响应估计单元（b106-4）和频率响应估计单元（b106-5）），其通过对信道脉冲响应估计值进行时间频率变换来将信道脉冲响应估计值转换为频率响应估计值。以这种方式，能够执行准确的信道估计结果的接收机装置。

4. 发明申请

US20130182802A1 RECEIVER APPARATUS, RECEPTION METHOD, AND RECEPTION PROGRAM 有权
标题翻译：接收装置，接收方法和接收方案
公开(公告)号：US20130182802A1
公开(公告)日：2013-07-18
申请号：US13876500
申请日：2011-08-10
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L25/02
CPC分类号： H04L25/0212 , H04J11/0063 , H04L5/0007 , H04L5/0048 , H04L25/0226 , H04L25/025 , H04L25/0256
摘要： A receiver apparatus includes a propagation channel estimating unit that estimates a propagation channel. The propagation channel estimating unit includes a path detector unit that repeatedly performs a process of detecting paths in the order of increase in a propagation channel goodness of fit. The receiver apparatus that estimates a propagation channel at a high accuracy level with a small amount of calculation operation involved is thus provided.
摘要翻译：接收机装置包括估计传播路径的传播路径估计单元。传播路径估计单元包括：路径检测单元，重复执行以传播路径拟合度的增加顺序检测路径的处理。因此，提供了以少量计算操作来估计高精度水平的传播路径的接收机装置。

5. 发明申请

US20120243628A1 RECEPTION DEVICE, RECEPTION METHOD, AND RECEPTION 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：US20120243628A1
公开(公告)日：2012-09-27
申请号：US13514233
申请日：2010-08-11
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L27/28 , H04B1/10
CPC分类号： H04B7/0837 , H04J11/004
摘要： A channel estimator estimates a channel estimation value. A symbol replica generator generates a symbol replica that is a modulation symbol of the information demodulated. A signal extractor extracts, in a plurality of time durations, each of subcarrier elements of the reception signal from which an interference is cancelled, based on the channel estimation and the symbol replica. A demodulator demodulates signals on the subcarrier elements of the reception signal, based on signals in the plurality of time durations which are extracted by the signal extractor.
摘要翻译：信道估计器估计信道估计值。符号复制生成器生成作为解调信息的调制符号的符号副本。信号提取器基于信道估计和符号复制品，在多个时间间隔中提取干扰被消除的接收信号的每个子载波元素。解调器基于由信号提取器提取的多个持续时间中的信号来解调接收信号的子载波元件上的信号。

6. 发明申请

US20110305286A1 TRANSMISSION APPARATUS, TRANSMISSION METHOD, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 有权
标题翻译：传输装置，传输方法，通信系统和通信方法
公开(公告)号：US20110305286A1
公开(公告)日：2011-12-15
申请号：US13143281
申请日：2010-01-07
申请人： Kazuyuki Shimezawa , Toshizo Nogami , Takashi Yoshimoto , Ryota Yamada , Katsuya Kato
发明人： Kazuyuki Shimezawa , Toshizo Nogami , Takashi Yoshimoto , Ryota Yamada , Katsuya Kato
IPC分类号： H04L27/00 , H04L27/28
CPC分类号： H04L27/2607 , H04L27/2646 , H04L27/2688
摘要： In a transmission apparatus which multicarrier-modulates and transmits symbols, which are basic units of digital signals, a subcarrier in which a symbol is arranged in a first multicarrier symbol having a first guard interval and a subcarrier in which a symbol is arranged in a second multicarrier symbol having a second guard interval longer than the first guard interval are scattered among a plurality of subcarriers constituting a multicarrier at the same time. Therefore, it is possible to improve the resistance to inter-symbol interference without substantially degrading transmission efficiency.
摘要翻译：在作为数字信号的基本单位的多载波调制发送符号的发送装置中，符号被配置在具有第一保护间隔的第一多载波符号的子载波中，在第二多载波符号中配置符号的子载波具有比第一保护间隔长的第二保护间隔的多载波符号在同时构成多载波的多个子载波中散布。因此，可以在不显着降低传输效率的情况下提高符号间干扰的抗性。

7. 发明授权

US08666003B2 Reception device, reception method, and reception program 有权
标题翻译：接收设备，接收方式和接收程序
公开(公告)号：US08666003B2
公开(公告)日：2014-03-04
申请号：US13509532
申请日：2010-08-11
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H03D1/04
CPC分类号： H04J11/004 , H04L25/0202
摘要： A propagation channel estimation unit estimates a propagation channel estimated value. A symbol replica generation unit generates a symbol replica which is a modulated symbol from demodulated information. A signal extraction unit extracts each subcarrier component from a received signal from which interference has been removed, based on the propagation channel estimated value and the symbol replica. A demodulation unit demodulates the signals of the subcarrier components extracted by the signal extraction unit.
摘要翻译：传播路径估计单元估计传播路径估计值。符号复制品生成单元从解调信息生成作为调制符号的符号副本。信号提取单元基于传播路径估计值和符号复制品从已经去除了干扰的接收信号中提取每个子载波分量。解调单元解调由信号提取单元提取的子载波分量的信号。

8. 发明申请

US20130003901A1 RECEIVING DEVICE, RECEIVING METHOD, RECEIVING PROGRAM, AND PROCESSOR 有权
标题翻译：接收设备，接收方法，接收程序和处理器
公开(公告)号：US20130003901A1
公开(公告)日：2013-01-03
申请号：US13583187
申请日：2011-03-02
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L27/06
CPC分类号： H04L25/03006 , H04B17/309 , H04B17/345 , H04B17/391 , H04L2025/03414
摘要： A propagation channel estimation unit estimates a propagation channel estimation value. A symbol replica generation unit generates a symbol replica that is modulated symbol of a demodulated information. A signal extraction unit extracts, in an arbitrary time duration, each subcarrier component of a received signal in which an interference signal was removed, the extraction being made based on the propagation channel estimation value and the symbol replica. A demodulator demodulates a signal of each subcarrier component in the received signal, the demodulation being made based on signal during the time duration extracted by the signal extraction unit.
摘要翻译：传播路径估计单元估计传播路径估计值。符号副本生成单元生成作为解调信息的调制符号的码元副本。信号提取单元在任意的持续时间内，提取除去干扰信号的接收信号的各子载波分量，根据传播路径估计值和符号复制品进行提取。解调器解调接收信号中的每个子载波分量的信号，基于由信号提取单元提取的持续时间期间的信号进行解调。

9. 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。

10. 发明授权

US08995578B2 Receiver apparatus, reception method, and reception program 有权
标题翻译：接收装置，接收方式和接收方案
公开(公告)号：US08995578B2
公开(公告)日：2015-03-31
申请号：US13876500
申请日：2011-08-10
申请人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
发明人： Katsuya Kato , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L27/06 , H04L25/02 , H04L5/00 , H04J11/00
CPC分类号： H04L25/0212 , H04J11/0063 , H04L5/0007 , H04L5/0048 , H04L25/0226 , H04L25/025 , H04L25/0256
摘要： A receiver apparatus includes a propagation channel estimating unit that estimates a propagation channel. The propagation channel estimating unit includes a path detector unit that repeatedly performs a process of detecting paths in the order of increase in a propagation channel goodness of fit. The receiver apparatus that estimates a propagation channel at a high accuracy level with a small amount of calculation operation involved is thus provided.
摘要翻译：接收机装置包括估计传播路径的传播路径估计单元。传播路径估计单元包括：路径检测单元，重复执行以传播路径拟合度的增加顺序检测路径的处理。因此，提供了以少量计算操作来估计高精度水平的传播路径的接收机装置。

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