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11. 发明申请

US20070263745A1 MIMO wireless data communication system, MIMO wireless data communication method and MIMO wireless data communication apparatus 有权
标题翻译： MIMO无线数据通信系统，MIMO无线数据通信方式和MIMO无线数据通信装置
公开(公告)号：US20070263745A1
公开(公告)日：2007-11-15
申请号：US11785376
申请日：2007-04-17
申请人： Shigenori Hayase , Masaaki Shida , Keisuke Yamamoto
发明人： Shigenori Hayase , Masaaki Shida , Keisuke Yamamoto
IPC分类号： H04L1/02
CPC分类号： H04B7/0854 , H04B7/0615
摘要： In a MIMO wireless communication system, the transformation process synthesizes the eigenmodes having a large singular value (i.e. a high effective SNR) and the eigenmodes having a small singular value (i.e. a low effective SNR). Thereby, the former eigenmodes are converted into modes having suppressed effective SNR which do not require a large number of levels of modulation, and the latter eigenmodes are converted into modes having increased effective SNR instead. In a MIMO wireless communication system for eigenmode transmission, a large communication capacity is realized without increasing the number of levels of modulation even in a communication environment capable of achieving a high SNR.
摘要翻译：在MIMO无线通信系统中，变换过程合成具有大奇异值（即高有效SNR）的本征模和具有小奇异值的本征模（即低有效SNR）。因此，前者本征模式被转换为具有抑制的有效SNR的模式，其不需要大量的调制电平，并且后者本征模式被转换成具有增加的有效SNR的模式。在用于本征模式传输的MIMO无线通信系统中，即使在能够实现高SNR的通信环境中也可实现大的通信容量而不增加调制电平的数量。

12. 发明申请

US20070274256A1 Systems and methods for wireless communication 有权
标题翻译：用于无线通信的系统和方法
公开(公告)号：US20070274256A1
公开(公告)日：2007-11-29
申请号：US11797321
申请日：2007-05-02
申请人： Shinji Murai , Tomoaki Ishifuji , Takashi Yano , Masaaki Shida , Shigenori Hayase
发明人： Shinji Murai , Tomoaki Ishifuji , Takashi Yano , Masaaki Shida , Shigenori Hayase
IPC分类号： H04Q7/00
CPC分类号： H04W72/085 , H04W28/18 , H04W72/046
摘要： In a wireless communication system for communicating with a plurality of stations at the same point of time with the same frequency using a Space Division Multiple Access (SDMA), wireless resources are allocated by a first decision unit which evaluates performance of each station obtained when the SDMA is used and which determines periods of time to be allocated to groups of stations formed according to the SDMA technique. Using a first evaluation unit and a second evaluation unit to evaluate performance required by each station and each application, the first decision unit allocates the wireless resources to the stations. It is therefore possible that the wireless resources are efficiently allocated to the stations while preventing an event in which the wireless resources are excessive or insufficient for required quality of service.
摘要翻译：在用于使用空分多址（SDMA）以相同频率在同一时间点与多个站进行通信的无线通信系统中，无线资源由第一决策单元分配，该第一决策单元评估当使用SDMA，并确定要分配给根据SDMA技术形成的站组的时间段。使用第一评估单元和第二评估单元来评估每个站点和每个应用所需的性能，第一决策单元向站点分配无线资源。因此，可以将无线资源有效地分配给站，同时防止无线资源过多或不足以满足所需服务质量的事件。

13. 发明申请

US20110033005A1 MIMO wireless data communication system, MIMO wireless data communication method and MIMO wireless data communication apparatus 失效
标题翻译： MIMO无线数据通信系统，MIMO无线数据通信方式和MIMO无线数据通信装置
公开(公告)号：US20110033005A1
公开(公告)日：2011-02-10
申请号：US12923852
申请日：2010-10-12
申请人： Shigenori Hayase , Masaaki Shida , Keisuke Yamamota
发明人： Shigenori Hayase , Masaaki Shida , Keisuke Yamamota
IPC分类号： H04B7/02 , H04L27/00
CPC分类号： H04B7/0854 , H04B7/0615
摘要： In a MIMO wireless communication system, the transformation process synthesizes the eigenmodes having a large singular value (i.e. a high effective SNR) and the eigenmodes having a small singular value (i.e. a low effective SNR). Thereby, the former eigenmodes are converted into modes having suppressed effective SNR which do not require a large number of levels of modulation, and the latter eigenmodes are converted into modes having increased effective SNR instead. In a MIMO wireless communication system for eigenmode transmission, a large communication capacity is realized without increasing the number of levels of modulation even in a communication environment capable of achieving a high SNR.
摘要翻译：在MIMO无线通信系统中，变换过程合成具有大奇异值（即高有效SNR）的本征模和具有小奇异值的本征模（即低有效SNR）。因此，前者本征模式被转换为具有抑制的有效SNR的模式，其不需要大量的调制电平，并且后者本征模式被转换成具有增加的有效SNR的模式。在用于本征模式传输的MIMO无线通信系统中，即使在能够实现高SNR的通信环境中也可实现大的通信容量而不增加调制电平的数量。

14. 发明申请

US20070086400A1 Radio communication device 失效
标题翻译：无线通信设备
公开(公告)号：US20070086400A1
公开(公告)日：2007-04-19
申请号：US11493556
申请日：2006-07-27
申请人： Masaaki Shida , Shigenori Hayase , Tomoaki Ishifuji
发明人： Masaaki Shida , Shigenori Hayase , Tomoaki Ishifuji
IPC分类号： H04Q7/24
CPC分类号： H04L27/2649 , H04B7/0417 , H04B7/0626 , H04L25/0204 , H04L27/2657 , H04L27/2662 , H04L2025/03426 , H04L2027/0024
摘要： Disclosed is a wireless communication system capable of performing demodulation at the receiving side without substantially deteriorating BER characteristics, regardless of carrier frequency error existing among plural wireless communication systems in SDMA of uplink. The wireless communication system includes plural antennas; a MIMO processor that decomposes a reception signal the plural antennas received from plural transmitters into transmission signals transmitted from the respective transmitters; a FFT processor that carries out OFDM demodulation; and a demapping unit that obtains data from signals which were previously converted into sub-carrier signals by the FFT processor, in which the MIMO processor is installed ahead of the FFT processor for sake of the processing sequence of a receive signal, and even though a carrier frequency offset exists in the reception signal MIMO processing is performed prior to OFDM demodulation to split the reception signal from plural transmitters.
摘要翻译：公开了无论在上行链路的SDMA中的多个无线通信系统中存在的载波频率误差如何，都能够在接收侧进行解调而不使BER特性实质恶化的无线通信系统。无线通信系统包括多个天线; 将从多个发射机接收的多个天线的接收信号分解为从各个发射机发射的传输信号的MIMO处理器; 执行OFDM解调的FFT处理器; 以及解映射单元，其通过FFT处理器从先前被转换为子载波信号的信号获得数据，其中为处理接收信号的处理顺序而将MIMO处理器安装在FFT处理器之前，并且即使载波频率偏移存在于接收信号中，在OFDM解调之前执行MIMO处理，以分割来自多个发射机的接收信号。

15. 发明授权

US08310995B2 Systems and methods for wireless communication using SDMA 有权
标题翻译：使用SDMA进行无线通信的系统和方法
公开(公告)号：US08310995B2
公开(公告)日：2012-11-13
申请号：US11797321
申请日：2007-05-02
申请人： Shinji Murai , Tomoaki Ishifuji , Takashi Yano , Masaaki Shida , Shigenori Hayase
发明人： Shinji Murai , Tomoaki Ishifuji , Takashi Yano , Masaaki Shida , Shigenori Hayase
IPC分类号： H04W4/00
CPC分类号： H04W72/085 , H04W28/18 , H04W72/046
摘要： In a wireless communication system for communicating with a plurality of stations at the same point of time with the same frequency using a Space Division Multiple Access (SDMA), wireless resources are allocated by a first decision unit which evaluates performance of each station obtained when the SDMA is used and which determines periods of time to be allocated to groups of stations formed according to the SDMA technique. Using a first evaluation unit and a second evaluation unit to evaluate performance required by each station and each application, the first decision unit allocates the wireless resources to the stations. It is therefore possible that the wireless resources are efficiently allocated to the stations while preventing an event in which the wireless resources are excessive or insufficient for required quality of service.
摘要翻译：在用于使用空分多址（SDMA）以相同频率在同一时间点与多个站进行通信的无线通信系统中，无线资源由第一决策单元分配，该第一决策单元评估当使用SDMA，并确定要分配给根据SDMA技术形成的站组的时间段。使用第一评估单元和第二评估单元来评估每个站点和每个应用所需的性能，第一决策单元向站点分配无线资源。因此，可以将无线资源有效地分配给站，同时防止无线资源过多或不足以满足所需服务质量的事件。

16. 发明授权

US07660288B2 Radio communication device 失效
标题翻译：无线通信设备
公开(公告)号：US07660288B2
公开(公告)日：2010-02-09
申请号：US11493556
申请日：2006-07-27
申请人： Masaaki Shida , Shigenori Hayase , Tomoaki Ishifuji
发明人： Masaaki Shida , Shigenori Hayase , Tomoaki Ishifuji
IPC分类号： H04J1/00
CPC分类号： H04L27/2649 , H04B7/0417 , H04B7/0626 , H04L25/0204 , H04L27/2657 , H04L27/2662 , H04L2025/03426 , H04L2027/0024
摘要： Disclosed is a wireless communication system capable of performing demodulation at the receiving side without substantially deteriorating BER characteristics, regardless of carrier frequency error existing among plural wireless communication systems in SDMA of uplink. The wireless communication system includes plural antennas; a MIMO processor that decomposes a reception signal the plural antennas received from plural transmitters into transmission signals transmitted from the respective transmitters; a FFT processor that carries out OFDM demodulation; and a demapping unit that obtains data from signals which were previously converted into sub-carrier signals by the FFT processor, in which the MIMO processor is installed ahead of the FFT processor for sake of the processing sequence of a receive signal, and even though a carrier frequency offset exists in the reception signal MIMO processing is performed prior to OFDM demodulation to split the reception signal from plural transmitters.
摘要翻译：公开了无论在上行链路的SDMA中的多个无线通信系统中存在的载波频率误差如何，都能够在接收侧进行解调而不使BER特性实质恶化的无线通信系统。无线通信系统包括多个天线; 将从多个发射机接收的多个天线的接收信号分解为从各个发射机发射的传输信号的MIMO处理器; 执行OFDM解调的FFT处理器; 以及解映射单元，其通过FFT处理器从先前被转换为子载波信号的信号获得数据，其中为处理接收信号的处理顺序而将MIMO处理器安装在FFT处理器之前，并且即使载波频率偏移存在于接收信号中，在OFDM解调之前执行MIMO处理，以分割来自多个发射机的接收信号。

17. 发明授权

US08560000B2 Transmit power control method for reducing cellular interference in cellular radio communication system and radio base station device for implementing the same 失效
标题翻译：用于减少蜂窝无线电通信系统和无线基站装置中的蜂窝干扰的发射功率控制方法，
公开(公告)号：US08560000B2
公开(公告)日：2013-10-15
申请号：US12986377
申请日：2011-01-07
申请人： Rintaro Katayama , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii , Shigenori Hayase
发明人： Rintaro Katayama , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii , Shigenori Hayase
IPC分类号： H04W52/24
CPC分类号： H04W52/143 , H04W52/241 , H04W52/245
摘要： A communication device includes pilot signal sending part and transmit power control part and holds a criterion value indicating target channel quality for mobile stations within the area covered by the base station. It creates quality data from reports from one or plural mobile stations, stores the quality data, creates a first representative value indicating average channel quality for the mobile station(s) from the stored quality data, and changes the transmit power depending on the result of comparison between the first representative value and the criterion value. It creates a second representative value indicating distribution of low channel quality from the stored quality data and updates the criterion value depending on the result of comparison between the second representative value and the criterion value.
摘要翻译：通信设备包括导频信号发送部分和发射功率控制部分，并且保持指示由基站覆盖的区域内的移动台的目标信道质量的标准值。它从一个或多个移动站的报告创建质量数据，存储质量数据，从存储的质量数据创建指示移动站的平均信道质量的第一代表值，并且根据所存储的质量数据的结果来改变发送功率第一代表值与标准值之间的比较。它从存储的质量数据创建指示低通道质量的分布的第二代表值，并且根据第二代表值与标准值之间的比较结果来更新标准值。

18. 发明申请

US20070081450A1 WIRELESS DATA COMMUNICATION SYSTEM, WIRELESS DATA COMMUNICATION METHOD AND COMMUNICATION APPARATUS 有权
标题翻译：无线数据通信系统，无线数据通信方法和通信装置
公开(公告)号：US20070081450A1
公开(公告)日：2007-04-12
申请号：US11493821
申请日：2006-07-27
申请人： Shigenori Hayase , Shinji Murai , Tomoaki Ishifuji
发明人： Shigenori Hayase , Shinji Murai , Tomoaki Ishifuji
IPC分类号： H04J11/00
CPC分类号： H04B7/0617
摘要： A wireless communication system has no limitation in the number of AP antennas and UT antennas, and determines the parallel-communication data units to be a maximum value of MIMO communication, such that it provides a MIMO-SDMA wireless data communication system having superior transmission characteristics. The MIMO-SDMA wireless data communication system includes a single AP (Access Point) and U UTs (User Terminals) communicating with the AP using the same frequency signal at the same time. The UT includes the SDMA reception (Rx) processor, and synthesizes Rx signals of antennas, such that it controls the number of Rx data units. By the control of the number of Rx data units, the communication system controls the number of parallel-communication data units to be equal to a maximum value capable of being implemented by the MIMO-SDMA wireless data communication. The AP informs the UTs of a coefficient matrix required for the SDMA Rx process, prior to transmitting actual data.
摘要翻译：无线通信系统对AP天线和UT天线的数量没有限制，并且将并行通信数据单元确定为MIMO通信的最大值，使得其提供具有优异传输特性的MIMO-SDMA无线数据通信系统。 MIMO-SDMA无线数据通信系统包括使用相同频率信号同时与AP通信的单个AP（接入点）和U UT（用户终端）。 UT包括SDMA接收（Rx）处理器，并且合成天线的Rx信号，使得它控制Rx数据单元的数量。通过控制Rx数据单元的数量，通信系统将并行通信数据单元的数量控制为能够通过MIMO-SDMA无线数据通信实现的最大值。在发送实际数据之前，AP向UT通知SDMA Rx进程所需的系数矩阵。

19. 发明授权

US08111778B2 Method for suppressing peak power of orthogonally multiplex signal, peak power suppressing circuit, and transmitter 有权
标题翻译：用于抑制正交复用信号的峰值功率，峰值功率抑制电路和发射机的方法
公开(公告)号：US08111778B2
公开(公告)日：2012-02-07
申请号：US12199595
申请日：2008-08-27
申请人： Takashi Yano , Shigenori Hayase , Masashi Naito
发明人： Takashi Yano , Shigenori Hayase , Masashi Naito
IPC分类号： H04L25/49
CPC分类号： H04L27/2614 , H04L27/2618 , H04L27/2623 , H04L27/2624
摘要： To suppress the peak of the orthogonal multiplex transmission signal which is small in deterioration of the quality of the reception signal by generating the cancellation waveform in synchronization with the timing of the symbol of the transmission signal. There is provided a peak suppressing method that suppresses peaks of an orthogonally multiplexed signal whose orthogonality is ensured in given time units, the method comprising: a first step of detecting the peaks of the orthogonally multiplexed signal; a second step of generating a peak cancellation waveform based on the detected peaks of the orthogonally multiplexed signal; and a third step of removing the peak of the orthogonally multiplexed signal from the orthogonally multiplexed signal using the generated peak cancellation waveform. The second step comprises generating the peak cancellation waveform in said time units of the orthogonally multiplexed signal.
摘要翻译：通过与发送信号的符号的定时同步地生成消除波形来抑制接收信号的质量恶化的正交多路传输信号的峰值。提供一种峰值抑制方法，其抑制以给定时间单位确保正交性的正交复用信号的峰值，该方法包括：检测正交多路复用信号的峰值的第一步骤; 基于检测到的正交多路复用信号的峰值产生峰值消除波形的第二步骤; 以及使用所生成的峰值抵消波形从正交多路复用信号中除去正交多路复用信号的峰值的第三步骤。第二步包括以正交复用信号的所述时间单位产生峰值消除波形。

20. 发明授权

US07391974B2 Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals 失效
标题翻译：波分复用光传输设备和放大光波分复用信号的方法
公开(公告)号：US07391974B2
公开(公告)日：2008-06-24
申请号：US11711951
申请日：2007-02-27
申请人： Tetsuya Uda , Shigehiro Takashima , Shigenori Hayase , Yoshimasa Kusano , Satoshi Asamizu , Hirofumi Nakano
发明人： Tetsuya Uda , Shigehiro Takashima , Shigenori Hayase , Yoshimasa Kusano , Satoshi Asamizu , Hirofumi Nakano
IPC分类号： H04B10/00
CPC分类号： H04B10/294 , H04J14/0221
摘要： Optical signal transmission is improved by reducing the variance in light output level and OSNR by adjusting optical signal intensity and gain tilt, taking SRS influence into consideration.
摘要翻译：通过调整光信号强度和增益倾斜，通过减小光输出电平和OSNR的差异来改善光信号传输，考虑SRS影响。

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