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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

US08971265B2 Communication system, communication method and base station 有权
标题翻译：通信系统，通信方式和基站
公开(公告)号：US08971265B2
公开(公告)日：2015-03-03
申请号：US13388895
申请日：2010-08-04
申请人： Takashi Yoshimoto , Kazuyuki Shimezawa
发明人： Takashi Yoshimoto , Kazuyuki Shimezawa
IPC分类号： H04W4/00 , H04J3/14 , H04B7/216 , H04W36/00 , H04J11/00 , H04L5/00 , H04L27/26 , H04L1/00
CPC分类号： H04J11/0053 , H04L1/0045 , H04L1/0068 , H04L1/0077 , H04L5/0007 , H04L5/0035 , H04L5/0073 , H04L27/2607 , H04W4/38
摘要： In a communication system including a mobile station that transmits a data signal and a plurality of base stations receiving the data signal transmitted by the mobile station, the communication system includes: as the base stations, at least, one first base station having a first signal detector detecting the data signal transmitted by the mobile station; and, at least, one second base station having a second signal detector that detects the data signal received by the station per se, using the detection result which the first base station has detected from the data signal transmitted by the mobile station. As a result, it is possible to provide a communication system and the like capable of providing good transmission characteristics in the uplink cooperative communication without addition of CPs having a longer length than usual.
摘要翻译：在包括发送数据信号的移动站和接收由移动站发送的数据信号的多个基站的通信系统中，通信系统包括：作为基站，至少有一个第一基站具有第一信号检测器检测由移动台发送的数据信号; 以及至少一个第二基站，具有第二信号检测器，该第二信号检测器使用从移动台发送的数据信号中检测到的由第一基站检测到的检测结果本台本身接收的数据信号。结果，可以提供能够在上行协作通信中提供良好的传输特性的通信系统等，而不需要增加长度比通常长的CP。

4. 发明申请

US20110206031A1 RECEIVER AND RECEIVING METHOD 审中-公开
标题翻译：接收和接收方法
公开(公告)号：US20110206031A1
公开(公告)日：2011-08-25
申请号：US12672175
申请日：2008-08-06
申请人： Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa
发明人： Takashi Yoshimoto , Ryota Yamada , Kazuyuki Shimezawa
IPC分类号： H04B1/16
CPC分类号： H04B1/59 , H04B1/7117 , H04L5/0021 , H04L25/03171 , H04L27/2647
摘要： A receiver includes a replica signal generating unit which generates a replica signal as a replica of a transmission signal based on a received signal; a time zone setting unit which sets a plurality of time zones to be extracted such that a part of a signal interval of the received signal is included in the plurality of time zones to be extracted; a signal extracting unit which extracts a signal in a predetermined time zone of the received signal based on the replica signal and a time zone which is set by the time zone setting unit; a combining unit which combines signals of the respective time zones extracted by the signal extracting unit; and a decoding processing unit which carries out decoding on the signal combined by the combining unit.
摘要翻译：接收机包括：复制信号生成单元，其基于接收到的信号生成复制信号作为发送信号的副本; 时区设置单元，其设置要提取的多个时区，使得接收信号的信号间隔的一部分包括在要提取的多个时区中; 信号提取单元，其基于所述复制信号和由所述时间段设置单元设置的时区来提取所接收信号的预定时间段中的信号; 组合单元，其组合由所述信号提取单元提取的各个时间段的信号; 以及解码处理单元，对由组合单元组合的信号进行解码。

5. 发明申请

US20100183100A1 RECEIVER AND RECEPTION METHOD 审中-公开
标题翻译：接收和接收方法
公开(公告)号：US20100183100A1
公开(公告)日：2010-07-22
申请号：US12676130
申请日：2008-09-05
申请人： Kazuyuki Shimezawa , Takashi Yoshimoto , Ryota Yamada
发明人： Kazuyuki Shimezawa , Takashi Yoshimoto , Ryota Yamada
IPC分类号： H04L27/06 , H04J11/00 , H04B1/69 , H04B1/10
CPC分类号： H04B1/7115 , H04B1/7117 , H04L5/0021 , H04L25/0212 , H04L25/03012 , H04L27/2647
摘要： A receiver includes a propagation path estimation unit which produces a channel impulse response estimation value from a received signal, a replica signal creation unit which creates a replica signal as a replica of a transmitted signal based on the received signal, a time period setting unit which sets time periods into which the channel impulse response estimation value is divided, a received signal extraction unit which extracts received signals of the time periods set by the time period setting unit using the replica signal created by the replica signal creation unit, a combining unit which iterates a process for combining the signals of the time periods extracted by the received signal extraction unit, and a demodulation processing unit which performs a demodulation process for the signals combined by the combining unit. The number of time periods set in at least one iterative process is different.
摘要翻译：接收机包括从接收信号产生信道脉冲响应估计值的传播路径估计单元，复制信号生成单元，基于接收信号，生成复制信号作为发送信号的副本;时间段设定单元，设置分配了信道脉冲响应估计值的时间周期;接收信号提取单元，其使用由复制信号创建单元创建的复制信号提取由时间段设置单元设置的时间段的接收信号;合成单元，迭代用于组合由接收信号提取单元提取的时间段的信号的处理和对由组合单元组合的信号执行解调处理的解调处理单元。在至少一个迭代过程中设置的时间段的数量是不同的。

6. 发明授权

US09713123B2 Base station device, mobile station device, communication system, transmission method, reception method, and communication method 有权
公开(公告)号：US09713123B2
公开(公告)日：2017-07-18
申请号：US13984201
申请日：2012-02-03
申请人： Takashi Yoshimoto , Kazuyuki Shimezawa
发明人： Takashi Yoshimoto , Kazuyuki Shimezawa
IPC分类号： H04W28/04 , H04W72/00 , H04J11/00 , H04W72/04
CPC分类号： H04W72/005 , H04J11/0053 , H04J11/0056 , H04W72/042
摘要： Inter-cell Interference is efficiently mitigated or suppressed in a radio communication system constituting a heterogeneous network. In the radio communication system in which a base station device and a mobile station device communicate with each other, the base station device notifies, to the mobile station device, control information related to a cell-specific reference signal that is specific to a cell ID of another base station device different from the aforesaid base station device, the control information containing information regarding number of ports for the cell-specific reference signal.

7. 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。

8. 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。

9. 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。

10. 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。

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