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21. 发明授权

US07676005B2 Wireless communication apparatus 有权
标题翻译：无线通信装置
公开(公告)号：US07676005B2
公开(公告)日：2010-03-09
申请号：US10598441
申请日：2005-08-02
申请人： Yasuaki Yuda , Takaaki Kishigami , Takashi Fukagawa , Yoichi Nakagawa , Shinichiro Takabayashi
发明人： Yasuaki Yuda , Takaaki Kishigami , Takashi Fukagawa , Yoichi Nakagawa , Shinichiro Takabayashi
IPC分类号： H03D1/04
CPC分类号： H04B7/0619 , H04B7/0617 , H04B7/086 , H04B17/11 , H04B17/21
摘要： In a wireless communication apparatus adopting a time division duplex system for executing transmission and reception using a plurality of antennas, deviation of amplitude and phase occurring between transmission and reception circuits is detected and corrected using a communication signal. Channel estimation means 105 detects channel information based on reception output of reception circuits 104-1 to 104-N provided in a one-to-one correspondence with a plurality of antennas 101-1 to 101-N. Correction value detection means 110 finds a correction value for correcting deviation occurring between each of transmission circuits 103-1 to 103-N and each of the reception circuits 104-1 to 104-N based on the channel information. A wireless communication apparatus 100 transmits an already known signal (training signal) to a base station with which the wireless communication apparatus conducts communications. The base station executes channel estimation based on the already known signal and generates and transmits a correction signal (probe signal). The correction value detection means 110 of the wireless communication apparatus 100 detects the correction value using the correction signal (probe signal).
摘要翻译：在采用使用多个天线执行发送和接收的时分双工系统的无线通信装置中，使用通信信号来检测和校正发送和接收电路之间发生的振幅和相位的偏差。信道估计装置105基于与多个天线101-1至101-N一一对应地提供的接收电路104-1至104-N的接收输出来检测信道信息。修正值检测单元110基于通道信息，求出用于校正发送电路103-1〜103-N和各接收电路104-1〜104-N的偏差的校正值。无线通信装置100向无线通信装置进行通信的基站发送已知的信号（训练信号）。基站根据已知的信号进行信道估计，生成并发送校正信号（探测信号）。无线通信装置100的校正值检测装置110使用校正信号（探测信号）来检测校正值。

22. 发明授权

US08520641B2 Radio communication device and arrival direction estimation method 有权
公开(公告)号：US08520641B2
公开(公告)日：2013-08-27
申请号：US12979305
申请日：2010-12-27
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： H04W4/00
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.

23. 发明授权

US07263083B2 Radio communication device and arrival direction estimation method 有权
标题翻译：无线电通信装置和到达方向估计方法
公开(公告)号：US07263083B2
公开(公告)日：2007-08-28
申请号：US10430397
申请日：2003-05-07
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： H04B7/216
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
摘要翻译：具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度，执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元，合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。

24. 发明授权

US08532064B2 Radio communication device and arrival direction estimation method 有权
公开(公告)号：US08532064B2
公开(公告)日：2013-09-10
申请号：US12979318
申请日：2010-12-27
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： H04Q7/00
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.

25. 发明申请

US20110090120A1 RADIO COMMUNICATION DEVICE AND ARRIVAL DIRECTION ESTIMATION METHOD 有权
公开(公告)号：US20110090120A1
公开(公告)日：2011-04-21
申请号：US12979305
申请日：2010-12-27
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： G01S3/16
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.

26. 发明授权

US07860064B2 Radio communication device and arrival direction estimation method 有权
标题翻译：无线电通信装置和到达方向估计方法
公开(公告)号：US07860064B2
公开(公告)日：2010-12-28
申请号：US11833037
申请日：2007-08-02
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takausaki , Shoji Miyamoto
IPC分类号： H04B7/208
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
摘要翻译：具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度，执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元，合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。

27. 发明授权

US06922450B2 Direction of arrival estimator and direction of arrival estimation method 失效
标题翻译：到达方向估计方法和到达方向估计方法
公开(公告)号：US06922450B2
公开(公告)日：2005-07-26
申请号：US09846390
申请日：2001-05-02
申请人： Yasuaki Yuda , Takashi Fukagawa , Youichi Nakagawa , Masahiro Mimura
发明人： Yasuaki Yuda , Takashi Fukagawa , Youichi Nakagawa , Masahiro Mimura
IPC分类号： H01Q3/26 , G01S3/04 , G01S3/14 , G01S3/28 , G01S3/74 , G01S7/02 , H04B1/71 , H04B7/10 , H04B7/26 , H04J13/00 , H04W16/28 , H04W24/00 , H04L27/22 , H03D1/04
CPC分类号： G01S3/043 , G01S3/74
摘要： An A/D converter converts the signal received by an array antenna and frequency-converted to a digital signal by a frequency converter. A correlation detector uses the chip rate as a cycle frequency and calculates a cyclic correlation matrix of spread spectrum signals stored in data storage. A cycle frequency detector detects the cycle frequency of an interference signal output from A/D converter. A correlation detector uses the detection result of the cycle frequency detector as a cycle frequency and calculates a cyclic correlation matrix of the signal, which becomes an interference signal, using the signal output from A/D converter. A direction of arrival is estimated, using the cyclic correlation matrices calculated by correlation detector and the correlation detector calculates the respective eigenvalues and eigenvectors and estimates the directions of arrival of a spread spectrum signal and a signal, which becomes an interference signal.
摘要翻译： A / D转换器将由阵列天线接收的信号转换成变频器，并将其频率转换为数字信号。相关检测器使用码片速率作为周期频率，并计算存储在数据存储器中的扩频信号的循环相关矩阵。循环频率检测器检测从A / D转换器输出的干扰信号的周期频率。相关检测器使用周期频率检测器的检测结果作为周期频率，并使用从A / D转换器输出的信号计算成为干扰信号的信号的循环相关矩阵。使用由相关检测器计算的循环相关矩阵来估计到达方向，并且相关检测器计算各自的特征值和特征向量，并估计扩频信号和成为干扰信号的信号的到达方向。

28. 发明授权

US07117016B2 Adaptive antenna base station apparatus 有权
标题翻译：自适应天线基站装置
公开(公告)号：US07117016B2
公开(公告)日：2006-10-03
申请号：US10383552
申请日：2003-03-10
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Masayuki Hoshino
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Masayuki Hoshino
IPC分类号： H04M1/00 , G01S5/02 , H03K9/00
CPC分类号： H04B7/086 , H04B1/712 , H04B7/0617
摘要： An adaptive antenna base station apparatus comprises an array antenna including N (N being a natural number) antenna elements; N reception sections for respectively performing orthogonal detection of high-frequency signals, respectively received by the antenna elements, after frequency conversion; N×M despreading sections for performing despreading operations, corresponding to delay times of M (M being a natural number) path components included in output signals of the reception sections; M correlation computing sections for performing correlations among the antenna elements for each path; a correlation combining section for combining output signals of the correlation computing sections; and a DOA estimating section for estimating a direction of arrival (DOA) by using an output of the correlation combining section. This can ensure collective estimation of DOAs of M path components, thereby reducing the amount of computation of estimating the DOAs for plural paths and the cost for the apparatus.
摘要翻译：一种自适应天线基站装置，包括：N（N是自然数）天线元件的阵列天线; N个接收部分，用于在频率转换之后分别执行由天线元件接收的高频信号的正交检测; 用于执行解扩操作的NxM解扩部分，对应于包括在接收部分的输出信号中的M（M是自然数）路径分量的延迟时间; M个相关计算部分，用于对每个路径执行天线元件之间的相关; 相关组合部分，用于组合相关计算部分的输出信号; 以及用于通过使用相关合成部分的输出来估计到达方向（DOA）的DOA估计部分。这可以确保对M路径分量的DOA的集体估计，从而减少对多路径的DOA估计的计算量和装置的成本。

29. 发明授权

US09801139B2 Wireless communication device and wireless communication method 有权
公开(公告)号：US09801139B2
公开(公告)日：2017-10-24
申请号：US13582300
申请日：2011-03-16
申请人： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Takashi Iwai
发明人： Yasuaki Yuda , Seigo Nakao , Ayako Horiuchi , Akihiko Nishio , Daichi Imamura , Takashi Iwai
IPC分类号： H04W52/14 , H04W52/46 , H04W52/24 , H04W52/36
CPC分类号： H04W52/146 , H04W52/242 , H04W52/244 , H04W52/362 , H04W52/46
摘要： A wireless communication device which can improve reception quality in a second other wireless communication device is disclosed, including a reception unit which receives a signal from a first other wireless communication device or a second other wireless communication device connected to the wireless communication device and the first other wireless communication device, a transmission power value setting unit which sets a transmission power value in a first subframe, in which the first other wireless communication device transmits a signal to the second other wireless communication device, to be higher than that in a second subframe in which the first other wireless communication device receives a signal from a third other wireless communication device connected to the first other wireless communication device, and a transmission power value switching control unit which performs switching in the first subframe to the transmission power value higher than that in the second subframe.

30. 发明授权

US09014617B2 Wireless relay device and wireless relay method 有权
标题翻译：无线中继设备和无线中继方式
公开(公告)号：US09014617B2
公开(公告)日：2015-04-21
申请号：US13575444
申请日：2011-02-10
申请人： Ayako Horiuchi , Yasuaki Yuda , Seigo Nakao , Alexander Golitschek Edler Von Elbwart
发明人： Ayako Horiuchi , Yasuaki Yuda , Seigo Nakao , Alexander Golitschek Edler Von Elbwart
IPC分类号： H04B3/36 , H04B7/155 , H04W16/26 , H04W84/04
CPC分类号： H04B7/15542 , H04W16/26 , H04W84/047
摘要： In a wireless relay method for relaying a signal between a base station and a mobile station, if an SRS is transmitted in a subframe immediately previous to the backhaul subframe, the last symbol of an access link subframe is set as a fake symbol in which the SRS that the mobile station transmits to the wireless relay device is not configured. The signal transmitted from the mobile station to the wireless relay device in a previous symbol of one of the fake symbol is received, and switched to transmission from the wireless relay device to the base station. If the SRS is not transmitted in a subframe immediately previous to the backhaul subframe, the signal transmitted from the mobile station to the wireless relay device is received in the last symbol of the access link subframe, and switched to transmission from the wireless relay device to the base station.
摘要翻译：在用于在基站和移动站之间中继信号的无线中继方法中，如果在紧接回程子帧之前的子帧中发送SRS，则将接入链路子帧的最后一个符号设置为伪码，未配置移动台向无线中继装置发送的SRS。接收到从假冒符号之一的先前符号中从移动站发送到无线中继装置的信号，并切换到从无线中继装置发送到基站。如果在紧接回程子帧之前的子帧中没有发送SRS，则从接入链路子帧的最后一个符号接收从移动台向无线中继装置发送的信号，并切换到从无线中继装置发送到基站。

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