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1. 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。

2. 发明申请

US20110038430A1 TRANSMISSION APPARATUS, RECEPTION APPARATUS, COMMUNICATION SYSTEM, TRANSMISSION METHOD AND RECEPTION METHOD 有权
标题翻译：传输装置，接收装置，通信系统，传输方法和接收方法
公开(公告)号：US20110038430A1
公开(公告)日：2011-02-17
申请号：US12936065
申请日：2009-03-30
申请人： Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa , Naoki Okamoto
发明人： Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa , Naoki Okamoto
IPC分类号： H04L27/00
CPC分类号： H04L1/0069 , H04L1/1819 , H04L1/1893 , H04L5/0046 , H04L5/0053 , H04L5/0055 , H04L27/2605
摘要： Data errors are sufficiently corrected and desired transmission quality is obtained even when the time variation of fading is large in a multicarrier transmission scheme communication system to which HARQ is applied. A transmission apparatus 100 is applied to a communication system in which the transmission apparatus and a reception apparatus perform automatic repeat request control therebetween, and has a subcarrier spacing setting section 111 that sets the subcarrier spacing used in transmitting a retransmission signal to be larger than the subcarrier spacing used in transmitting a first transmission signal, an IFFT section 112 that performs IFFT (Inverse Fast Fourier Transform) on an input signal based on the subcarrier spacing set in the subcarrier spacing setting section 111, and a transmission section 102 that transmits the first transmission signal and at least one retransmission signal.
摘要翻译：即使在应用了HARQ的多载波传输方式通信系统中，即使在衰落的时间变化大的情况下，也能够充分地校正数据错误，并且获得期望的传输质量。发送装置100应用于其中发送装置和接收装置在其间进行自动重复请求控制的通信系统，并且具有将发送重发信号所使用的子载波间隔设置为大于所述发送装置的副载波间隔设定部111 在发送第一发送信号中使用的子载波间隔，基于在子载波间隔设定部111中设定的副载波间隔对输入信号进行IFFT（快速傅里叶逆变换）的IFFT部112，以及发送部发送信号和至少一个重发信号。

3. 发明授权

US08284851B2 Transmission apparatus, reception apparatus, communication system, transmission method and reception method 有权
标题翻译：发送装置，接收装置，通信系统，发送方法和接收方法
公开(公告)号：US08284851B2
公开(公告)日：2012-10-09
申请号：US12936065
申请日：2009-03-30
申请人： Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa , Naoki Okamoto
发明人： Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa , Naoki Okamoto
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L1/0069 , H04L1/1819 , H04L1/1893 , H04L5/0046 , H04L5/0053 , H04L5/0055 , H04L27/2605
摘要： Data errors are sufficiently corrected and desired transmission quality is obtained even when the time variation of fading is large in a multicarrier transmission scheme communication system to which HARQ is applied. A transmission apparatus 100 is applied to a communication system in which the transmission apparatus and a reception apparatus perform automatic repeat request control therebetween, and has a subcarrier spacing setting section 111 that sets the subcarrier spacing used in transmitting a retransmission signal to be larger than the subcarrier spacing used in transmitting a first transmission signal, an IFFT section 112 that performs IFFT (Inverse Fast Fourier Transform) on an input signal based on the subcarrier spacing set in the subcarrier spacing setting section 111, and a transmission section 102 that transmits the first transmission signal and at least one retransmission signal.
摘要翻译：即使在应用了HARQ的多载波传输方式通信系统中，即使在衰落的时间变化大的情况下，也能够充分地校正数据错误，并且获得期望的传输质量。发送装置100应用于其中发送装置和接收装置在其间进行自动重复请求控制的通信系统，并且具有将发送重发信号所使用的子载波间隔设置为大于所述发送装置的副载波间隔设定部111 在发送第一发送信号中使用的子载波间隔，基于在子载波间隔设定部111中设定的副载波间隔对输入信号进行IFFT（快速傅里叶逆变换）的IFFT部112，以及发送部发送信号和至少一个重发信号。

4. 发明申请

US20110066911A1 COMMUNICATION DEVICE, COMMUNICATION SYSTEM, RECEPTION METHOD, AND COMMUNICATION METHOD 有权
标题翻译：通信设备，通信系统，接收方法和通信方法
公开(公告)号：US20110066911A1
公开(公告)日：2011-03-17
申请号：US12991935
申请日：2009-05-14
申请人： Takashi Yoshimoto , Toshizo Nogami , Ryota Yamada , Kazuyuki Shimezawa
发明人： Takashi Yoshimoto , Toshizo Nogami , Ryota Yamada , Kazuyuki Shimezawa
IPC分类号： H04L1/18 , G06F11/14
CPC分类号： H04L1/1812 , H04J11/0023 , H04L1/1829 , H04L1/1854
摘要： Provided is a communication device which performs a hybrid automatic repeat request process of requesting a transmission source to perform retransmission when an error is detected from a received signal. The communication device includes: a reception unit that receives a signal into which an initial transmission signal and a retransmission signal are multiplexed among signals including the initial transmission signal and the retransmission signal for any one signal; a detection order decision unit that decides an order of detection of the initial transmission signal and the retransmission signal from the signal received by the reception unit in response to the number of retransmissions of the initial transmission signal and the retransmission signal which are included in the signal received by the reception unit; and a signal detection unit that removes an interference component from the signal received by the reception unit by using a signal detected by the communication device according to the order decided by the detection order decision unit, and that detects the initial transmission signal and the retransmission signal. An increase of delay can be prevented when retransmission is repeated.
摘要翻译：提供一种通信装置，当从接收到的信号检测到错误时，执行请求发送源进行重发的混合自动重传请求处理。通信装置包括：接收单元，用于接收在任何一个信号中包括初始发送信号和重发信号的信号之间复用初始发送信号和重传信号的信号; 检测顺序判定单元，其根据包含在信号中的初始发送信号和重发信号的重发次数，根据由接收单元接收到的信号来决定初始发送信号和重发信号的检测顺序由接待单位收到; 以及信号检测单元，其通过使用由所述通信设备根据所述检测顺序决定单元确定的顺序检测到的信号从所述接收单元接收到的信号中去除干扰成分，并且检测所述初始发送信号和所述重发信号。当重复重传时，可以防止延迟的增加。

5. 发明申请

US20110044409A1 COMMUNICATION DEVICE, COMMUNICATION SYSTEM, RECEPTION METHOD, AND PROGRAM 审中-公开
标题翻译：通信设备，通信系统，接收方法和程序
公开(公告)号：US20110044409A1
公开(公告)日：2011-02-24
申请号：US12918243
申请日：2009-02-20
申请人： Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa , Toshizo Nogami
发明人： Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa , Toshizo Nogami
IPC分类号： H04L27/00
CPC分类号： H04L1/1812 , H04J11/004 , H04L1/0045 , H04L1/1845 , H04L5/0007
摘要： A communication device including: a reception unit which receives signals including an initial transmission signal and signals including retransmission signals for the same data; a signal detection unit which detects at least two signals among the initial transmission signal and the plurality of retransmission signals for the same data from the received signal using the result of a decoding process; a combining unit which combines at least two signals detected by the signal detection unit; and a decoding unit which obtains the result of the decoding process by decoding the combined signal; wherein the detection by the signal detection unit, the combining by the combining unit, and the decoding by the decoding unit are iteratively performed with respect to the plurality of signals for the same data.
摘要翻译：一种通信装置，包括：接收单元，其接收包括初始发送信号的信号和包括用于相同数据的重发信号的信号; 信号检测单元，使用解码处理的结果，从所述接收信号中检测所述初始发送信号和所述多个重发信号中的至少两个信号; 组合单元，其组合由所述信号检测单元检测到的至少两个信号; 以及解码单元，其通过对组合信号进行解码来获得解码处理的结果; 其中相对于相同数据的多个信号，迭代地执行信号检测单元的检测，组合单元的组合和解码单元的解码。

6. 发明申请

US20100329368A1 COMMUNICATION DEVICE, COMMUNICATION SYSTEM, RECEPTION METHOD, AND COMMUNICATION METHOD 审中-公开
标题翻译：通信设备，通信系统，接收方法和通信方法
公开(公告)号：US20100329368A1
公开(公告)日：2010-12-30
申请号：US12918293
申请日：2009-02-19
申请人： Kazuyuki Shimezawa , Takashi Yoshimoto , Ryota Yamada , Toshizo Nogami
发明人： Kazuyuki Shimezawa , Takashi Yoshimoto , Ryota Yamada , Toshizo Nogami
IPC分类号： H04L27/00 , H04L27/06
CPC分类号： H04L1/1845 , H04B1/7103 , H04J11/005 , H04L1/1819
摘要： A second communication device which communicates with a first communication device, the second communication device including: a reception unit which receives an initial transmission signal and at least one retransmission signal; and an iterative detection and decoding unit which performs iterative processes of signal detection and signal decoding for at least one received signal among received signals received by the reception unit, wherein the iterative detection and decoding unit includes: a combining unit which combines a result of signal detection obtained from at least one other received signal in one of the iterative processes.
摘要翻译：一种与第一通信设备通信的第二通信设备，所述第二通信设备包括：接收单元，接收初始传输信号和至少一个重传信号; 以及迭代检测和解码单元，其对由接收单元接收的接收信号中的至少一个接收信号执行信号检测和信号解码的迭代处理，其中迭代检测和解码单元包括：组合单元，其将信号的结果在一个迭代过程中从至少一个其他接收信号获得的检测。

7. 发明申请

US20100195597A1 TRANSMISSION APPARATUS, RECEPTION APPARATUS, COMMUNICATION SYSTEM AND TRANSMISSION METHOD 审中-公开
标题翻译：传输装置，接收装置，通信系统和传输方法
公开(公告)号：US20100195597A1
公开(公告)日：2010-08-05
申请号：US12678560
申请日：2008-09-19
申请人： Toshizo Nogami , Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa
发明人： Toshizo Nogami , Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa
IPC分类号： H04W72/04
CPC分类号： H04J11/0043 , H04B1/71072 , H04L25/0228 , H04W52/16
摘要： A transmission apparatus which communicates with a reception apparatus is provided. The transmission apparatus includes a transmission parameter control unit which sets a transmission parameter of at least one of the multiplex channels to be different from those of the other channels, and a transmission unit which transmits information indicating a signal detection order for the multiplex channels to the reception apparatus.
摘要翻译：提供与接收装置进行通信的发送装置。传输装置包括传输参数控制单元，其将至少一个复用信道的传输参数设置为与其他信道不同的传输参数;以及发送单元，其将指示多路复用信道的信号检测顺序的信息发送到接收设备。

8. 发明申请

US20100158080A1 WIRELESS RECEPTION DEVICE, WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD 有权
标题翻译：无线接收设备，无线通信系统和无线通信方法
公开(公告)号：US20100158080A1
公开(公告)日：2010-06-24
申请号：US12602033
申请日：2008-05-22
申请人： Ryota Yamada , Takashi Yoshimoto , Kazuyuki Shimezawa
发明人： Ryota Yamada , Takashi Yoshimoto , Kazuyuki Shimezawa
IPC分类号： H04L27/00 , H04B1/707 , H04L27/28
CPC分类号： H04B7/04 , H04B7/06 , H04B7/08
摘要： A wireless reception device which communicates with a wireless transmission device which has a plurality of transmission antennas, includes at least one reception antenna which receives a plurality of transmission signals transmitted from the plurality of transmission antennas of the wireless transmission device; a channel response estimation unit which estimates a channel response between a plurality of transmission antennas and the reception antenna; a block dividing unit which divides a reception signal of at least one reception antennas into a plurality of blocks; and a transmission signal detection unit which detects the plurality of transmission signals transmitted by the wireless transmission device based on a plurality of reception signals divided by the block dividing unit and the channel response estimated by the channel response estimation unit.
摘要翻译：一种与具有多个发送天线的无线发送装置通信的无线接收装置，包括至少一个接收从所述无线发送装置的多个发送天线发送的发送信号的发送信号的接收天线; 信道响应估计单元，其估计多个发送天线与接收天线之间的信道响应; 块分割单元，其将至少一个接收天线的接收信号分成多个块; 以及发送信号检测单元，其基于由所述块分割单元划分的多个接收信号和由所述信道响应估计单元估计的信道响应来检测由所述无线发送设备发送的所述多个发送信号。

9. 发明授权

US08693560B2 Transmission apparatus, transmission method, communication system, and communication method 有权
标题翻译：传输装置，传输方式，通信系统和通信方式
公开(公告)号：US08693560B2
公开(公告)日：2014-04-08
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： H04L27/28
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。

10. 发明申请

US20110019757A1 COMMUNICATION SYSTEM, RECEPTION DEVICE, AND COMMUNICATION METHOD 有权
标题翻译：通信系统，接收设备和通信方法
公开(公告)号：US20110019757A1
公开(公告)日：2011-01-27
申请号：US12934186
申请日：2009-04-24
申请人： Ryota Yamada , Takashi Yoshimoto , Kazuyuki Shimezawa
发明人： Ryota Yamada , Takashi Yoshimoto , Kazuyuki Shimezawa
IPC分类号： H04K1/10
CPC分类号： H04B7/04 , H04B1/71075 , H04B17/391 , H04J11/004 , H04J11/0063 , H04L5/0023 , H04L25/0228 , H04L25/0242 , H04L25/03006 , H04L25/03171 , H04L27/2647 , H04L2025/03401 , H04L2025/03426
摘要： A reception device which communicates with a transmission device including multiple transmission antennas, the reception device including: at least one reception antenna which receives multiple transmission signals transmitted by the transmission device from the multiple transmission antennas; a propagation channel response estimation unit which estimates propagation channel responses among the multiple transmission antennas and the reception antenna; a block division unit which divides a reception signal of at least one of the reception antennas into multiple blocks based on a multipath; and a transmission signal detection unit which detects the transmission signals transmitted by the transmission device based on the reception signal divided by the block division unit into the multiple blocks and the propagation channel responses estimated by the propagation channel response estimation unit. The transmission signal detection unit includes: an interference cancellation unit which generates and removes an interference replica; and a signal separation unit which separates a signal into which a transmission signal is multiplexed from an output of the interference cancellation unit.
摘要翻译：一种与包括多个发送天线的发送装置通信的接收装置，所述接收装置包括：至少一个接收天线，其从所述多个发送天线接收由所述发送装置发送的多个发送信号; 估计多个发送天线和接收天线之间的传播路径响应的传播路径响应估计单元; 块分割单元，其基于多路径将至少一个所述接收天线的接收信号划分为多个块; 以及发送信号检测单元，其基于由所述块分割单元划分的所述接收信号，将由所述发送装置发送的发送信号检测为所述多个块，以及所述传播路径响应由所述传播路径响应估计单元估计出。发送信号检测单元包括：干扰消除单元，其产生和去除干扰复制品; 以及信号分离单元，其将从发送信号复用的信号与干扰消除单元的输出分离。

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