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21. 发明申请

US20110142023A1 WIRELESS TRANSMITTING AND RECEIVING DEVICE AND METHOD 有权
标题翻译：无线传输和接收设备及方法
公开(公告)号：US20110142023A1
公开(公告)日：2011-06-16
申请号：US13029422
申请日：2011-02-17
申请人： Tsuguhide AOKI , Daisuke Takeda , Takahiro Kobayashi , Yasuhiko Tanabe
发明人： Tsuguhide AOKI , Daisuke Takeda , Takahiro Kobayashi , Yasuhiko Tanabe
IPC分类号： H04W4/00 , H04W84/02
CPC分类号： H04L25/0226 , H03G3/3052 , H04B7/04 , H04W52/52 , H04W84/12
摘要： A wireless device, method, and signal for use in communication of a wireless packet between transmitting device and a wireless receiving device via a plurality of antennas, wherein a signal generator generates wireless packet including a short-preamble sequence used for a first automatic gain control (AGC), a first long-preamble sequence, a signal field used for conveying a length of the wireless packet, an AGC preamble sequence used for a second AGC to be performed after the first AGC, a second long-preamble sequence, and a data field conveying data. The AGC preamble sequence is transmitted in parallel by the plurality of antennas.
摘要翻译：一种用于经由多个天线在发射设备和无线接收设备之间的无线分组通信中使用的无线设备，方法和信号，其中信号发生器生成包括用于第一自动增益控制的短前同步码序列的无线分组（AGC），第一长前导码序列，用于传送无线分组的长度的信号字段，用于在第一AGC之后执行的第二AGC的AGC前同步码序列，第二长前导序列和数据字段传送数据。 AGC前同步码序列由多个天线并行发送。

22. 发明授权

US07957480B2 Wireless communication method and wireless communication apparatus 有权
标题翻译：无线通信方法和无线通信装置
公开(公告)号：US07957480B2
公开(公告)日：2011-06-07
申请号：US12140613
申请日：2008-06-17
申请人： Yoshimasa Egashira , Yasuhiko Tanabe
发明人： Yoshimasa Egashira , Yasuhiko Tanabe
IPC分类号： H04K1/10 , H04L27/28 , H04L27/00
CPC分类号： H04L27/3863 , H04L5/0051 , H04L27/2613 , H04L27/2647
摘要： A wireless communication apparatus generates transmission signal including first and second pilot signal sequences allocated to first and second frequencies symmetrically located in relation to a center frequency, and third and fourth pilot signal sequences allocated to third and fourth frequencies symmetrically located in relation to the center frequency, quadrature-modulates the transmission signal, to obtain a quadrature modulation signal, quadrature-demodulates the quadrature modulation signal, to obtain a reception signal, extracts first to fourth pilot signal sequences from the reception signal, estimates a first transfer characteristic concerning first and second frequency by using first and second pilot signal sequences, estimates a second transfer characteristic concerning third and fourth frequencies using third and the fourth pilot signal sequences, generates a third transfer characteristic from which an influence of transmission IQ imbalance is removed by using first and second transfer characteristic, and estimates, from the third transfer characteristic, reception IQ imbalance characteristic.
摘要翻译：无线通信装置产生发送信号，该发送信号包括分配给关于中心频率对称地定位的第一和第二频率的第一和第二导频信号序列，以及分配给相对于中心频率对称地定位的第三和第四频率的第三和第四导频信号序列对发送信号进行正交调制，得到正交调制信号，对正交调制信号进行正交解调，得到接收信号，从接收信号中提取第一至第四导频信号序列，估计第一和第二传输特性通过使用第一和第二导频信号序列来估计使用第三和第四导频信号序列的关于第三和第四频率的第二传输特性，产生第三传输特性，通过使用第一和第二导频信号来消除传输IQ不平衡的影响 cond传递特性，并从第三传递特性估计接收IQ不平衡特性。

23. 发明授权

US07885360B2 Wireless communication apparatus and receiving method 失效
标题翻译：无线通信装置和接收方法
公开(公告)号：US07885360B2
公开(公告)日：2011-02-08
申请号：US11961269
申请日：2007-12-20
申请人： Yasuhiko Tanabe , Yoshimasa Egashira
发明人： Yasuhiko Tanabe , Yoshimasa Egashira
IPC分类号： H04L27/00
CPC分类号： H04L27/3863
摘要： A wireless communication apparatus receives an quadrature modulated signal, generate a local signal having a frequency different from a center frequency of the quadrature modulated signal, performs quadrature demodulation on the quadrature modulated signal by using the local signal, to obtain an I channel signal and a Q channel signal, performs Fourier transform on the I channel signal and the Q channel signal, to obtain signals in a frequency domain, and calculates a first correction coefficient for correcting phase distortion and amplitude distortion caused by the quadrature demodulation by using pairs of signals among the signals, each of the pairs are located at symmetrical frequency positions with respect to the frequency of the local signal.
摘要翻译：无线通信装置接收正交调制信号，生成具有与正交调制信号的中心频率不同的频率的本地信号，通过使用本地信号对正交调制信号进行正交解调，得到I信道信号和 Q信道信号，对I信道信号和Q信道信号进行傅里叶变换，以获得频域中的信号，并且计算用于校正由正交解调引起的相位失真和幅度失真的第一校正系数，信号中的每一对都相对于本地信号的频率位于对称的频率位置。

24. 发明授权

US07835476B2 Method for receiving OFDM signal, and receiver 有权
标题翻译：接收OFDM信号的方法和接收机
公开(公告)号：US07835476B2
公开(公告)日：2010-11-16
申请号：US11689121
申请日：2007-03-21
申请人： Tsuguhide Aoki , Yoshimasa Egashira , Yasuhiko Tanabe
发明人： Tsuguhide Aoki , Yoshimasa Egashira , Yasuhiko Tanabe
IPC分类号： H04L27/06
CPC分类号： H04L27/2613 , H04B7/0413 , H04L25/0226
摘要： A receiver of an OFDM signal includes a reception unit to receive an OFDM signal formed by a plurality of OFDM symbols respectively including data subcarriers to which data signals are allocated and pilot subcarriers to which cyclically shifted pilot signals are allocated in frequency domain, an estimator to estimate phase errors of the pilot signals to generate first estimated values related to an offset of the OFDM symbol corresponding to each two or more OFDM symbols in the OFDM signal, a weighting adder to perform weighting additions on the first estimated values to obtain one second estimated value related to the offset, a compensator to compensate the offset by using the second estimated value to obtain a compensated OFDM signal, and a decoder to decode the compensated OFDM signal to reproduce the data signals.
摘要翻译： OFDM信号的接收机包括：接收单元，用于接收由多个OFDM符号形成的OFDM信号，所述OFDM信号分别包括分配数据信号的数据子载波和在频域中被分配了循环移位的导频信号的导频子载波，估计器估计所述导频信号的相位误差，以产生与所述OFDM信号中对应于每个两个或更多个OFDM符号的OFDM符号的偏移相关的第一估计值;加权加法器，用于对所述第一估计值执行加权增加以获得一秒估计值与补偿相关的值，通过使用第二估计值来补偿偏移以获得补偿的OFDM信号的补偿器，以及解码器，对经补偿的OFDM信号进行解码以再现数据信号。

25. 发明授权

US07580446B2 Radio communication apparatus and radio communication method 失效
标题翻译：无线电通信装置和无线电通信方法
公开(公告)号：US07580446B2
公开(公告)日：2009-08-25
申请号：US11313834
申请日：2005-12-22
申请人： Yasuhiko Tanabe , Shuichi Obayashi
发明人： Yasuhiko Tanabe , Shuichi Obayashi
IPC分类号： H04B1/00 , H04J11/00
CPC分类号： H04L27/2608 , H04L1/0045 , H04L1/0057 , H04L25/0204
摘要： Radio communication apparatus includes unit dividing transmit data into first-and-second streams, unit subjecting first-and-second streams to serial-to-parallel conversion to obtain data signals, unit modulating data signals into OFDM-modulation signals corresponding to first and second streams using subcarriers, unit acquiring channel responses between communication and receiving apparatuses, unit computing singular values λ1(k) and λ2(k) of channel matrix corresponding to kth subcarrier in subcarriers, based on channel responses, unit assigning weights corresponding to singular values λ1(k) and λ2(k) to first-and-second streams where correspondence of weights to streams is different by subcarrier, unit multiplying, by each of assigned weights, OFDM-modulation signals corresponding to each of first and second streams, and acquire first-and-second signals corresponding to first-and-second streams, unit adding first-and-second signals to acquire added signals, unit subjecting added signals to inverse-Fourier transform, and unit transmitting, to receiving apparatus, signals output from subjecting unit.
摘要翻译：无线电通信装置包括将发送数据分成第一和第二流的单元，将第一和第二流串行到并行转换单元，以获得数据信号，将数据信号单元调制成对应于第一和第二流的OFDM调制信号使用子载波的单元，在通信和接收设备之间获取信道响应的单元，基于信道响应，对应于子载波中的第k个子载波的信道矩阵的单位计算奇异值λ1（k）和λ2（k），对应于奇异值λ1的单位分配权重（k）和λ2（k）分配给第一和第二流，其中权重与流的对应通过子载波，单位乘以每个分配的权重，与对应于第一和第二流中的每一个的OFDM调制信号不同，并获取对应于第一和第二流的第一和第二信号，单元添加第一和第二信号以获取附加信号，单位s 对信号进行逆傅里叶变换，并向接收装置发送从经受单元输出的信号。

26. 发明申请

US20090088174A1 WIRELESS COMMUNICATION APPARATUS AND METHOD FOR CONTROLLING WIRELESS COMMUNICATION APPARATUS 审中-公开
标题翻译：无线通信装置和无线通信装置的控制方法
公开(公告)号：US20090088174A1
公开(公告)日：2009-04-02
申请号：US12195547
申请日：2008-08-21
申请人： Shohei KIKUCHI , Yasuhiko Tanabe
发明人： Shohei KIKUCHI , Yasuhiko Tanabe
IPC分类号： H04Q7/20
CPC分类号： H04B7/0619 , H04L25/0204 , H04L25/0212 , H04L25/0222 , H04L25/03343 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04W72/0413 , H04W72/085
摘要： A wireless communication apparatus performs simultaneous communication with a plurality of communication terminals by using the same frequency band. The apparatus including: a reception unit that receives feedback information from each of the communication terminals; an acquisition unit that acquires a correlation value between the latest feedback information and the feedback information previously stored in a storage unit for each of the communication terminals; a measurement unit that measures a delay time relating to the feedback information; a generation unit that generates a reliability parameter representing degree of error that is allowed in the feedback information based on the correlation value and the delay time; and a selection unit that selects two or more of the communication terminals from among the plurality of the communication terminals based on the reliability parameter.
摘要翻译：无线通信装置通过使用相同的频带与多个通信终端进行同时通信。该装置包括：接收单元，其从每个通信终端接收反馈信息; 获取单元，其获取所述最新反馈信息和预先存储在每个通信终端的存储单元中的反馈信息之间的相关值; 测量单元，其测量与所述反馈信息相关的延迟时间; 生成单元，其基于所述相关值和所述延迟时间生成表示所述反馈信息中允许的误差的可靠性参数; 以及选择单元，其基于所述可靠性参数从所述多个通信终端中选择所述通信终端中的两个以上。

27. 发明授权

US07483503B2 Wireless communication using a plurality of antennas 失效
标题翻译：使用多个天线的无线通信
公开(公告)号：US07483503B2
公开(公告)日：2009-01-27
申请号：US11147321
申请日：2005-06-08
申请人： Yoshimasa Egashira , Daisuke Takeda , Tsuguhide Aoki , Yasuhiko Tanabe
发明人： Yoshimasa Egashira , Daisuke Takeda , Tsuguhide Aoki , Yasuhiko Tanabe
IPC分类号： H04B7/02 , H04B7/08 , H04L1/02 , H04L27/00
CPC分类号： H04L27/2613 , H04B7/0678
摘要： A wireless communication apparatus includes a plurality of antennas, transmits a plurality of known symbol sequences each including a plurality of known symbols by using the antennas, each of the known symbols having subcarrier arrangement on which plural known information of the each of the known symbols are carried on, and inversion/non-inversion of a phase of known information on one of two adjacent subcarriers of the subcarrier arrangement being controlled in accordance with the number of the known symbols and time position of the each of the known symbols, and transmits data symbols by using the antennas after the known symbol sequences are transmitted.
摘要翻译：无线通信装置包括多个天线，通过使用天线发送多个已知符号序列，每个已知符号序列包括多个已知符号，每个已知符号具有子载波排列，每个已知符号的多个已知信息并且根据已知符号的数量和每个已知符号的时间位置来控制副载波装置的两个相邻子载波之一上的已知信息的相位的反相/非反相，并且发送数据在发送已知符号序列之后使用天线的符号。

28. 发明授权

US07480353B2 Method and apparatus for estimating channel response and receiver apparatus using the estimated channel response for OFDM radio communication systems 失效
标题翻译：用于使用OFDM无线电通信系统的估计信道响应来估计信道响应和接收机装置的方法和装置
公开(公告)号：US07480353B2
公开(公告)日：2009-01-20
申请号：US11009066
申请日：2004-12-13
申请人： Yasuhiko Tanabe
发明人： Yasuhiko Tanabe
IPC分类号： H04L27/06
CPC分类号： H04L25/0228 , H04L25/0212 , H04L25/022 , H04L25/0244 , H04L25/0248 , H04L27/2647
摘要： An estimation apparatus for estimating a channel response of a radio propagation path using a received signal including a first known signal, comprises a generator which generates a reference signal matrix, a calculator which calculates a generalized inverse matrix of the reference signal matrix including singular values which exceed a preset threshold value, an estimation unit configured to estimate an impulse response of the radio channel modeled using a transversal filter based on the first known signal and the generalized inverse matrix, and a converter which converts the estimated impulse response into a frequency-domain signal to acquire a frequency transfer function of the channel.
摘要翻译：一种用于使用包括第一已知信号的接收信号来估计无线电传播路径的信道响应的估计装置，包括产生参考信号矩阵的发生器，计算包括奇异值的参考信号矩阵的广义逆矩阵的计算器，超过预设阈值的估计单元，被配置为基于第一已知信号和广义逆矩阵来估计使用横向滤波器建模的无线电信道的脉冲响应的估计单元，以及将估计的脉冲响应转换为频域信号以获取频道的频率传递函数。

29. 发明申请

US20080279259A1 Radio Communication Apparatus, Base Station and System 审中-公开
标题翻译：无线电通信装置，基站和系统
公开(公告)号：US20080279259A1
公开(公告)日：2008-11-13
申请号：US12136528
申请日：2008-06-10
申请人： Takahiro Kobayashi , Noritaka Deguchi , Yoshimasa Egashira , Yasuhiko Tanabe , Tsuguhide Aoki , Manabu Mukai , Tomoya Horiguchi
发明人： Takahiro Kobayashi , Noritaka Deguchi , Yoshimasa Egashira , Yasuhiko Tanabe , Tsuguhide Aoki , Manabu Mukai , Tomoya Horiguchi
IPC分类号： H04B1/713
CPC分类号： H04L5/1484 , H04B1/7143 , H04B2001/7154 , H04L5/023 , H04L27/2608
摘要： Radio communication apparatus for receiving OFDM signal from base station and transmitting FH signal to base station, using sub-channels, base station comparing hopping pattern information items indicating hopping patterns from radio communication apparatuses including radio communication apparatus, and generating collision information when hopping patterns include colliding hopping patterns, includes estimation unit configured to estimate channel response values of sub-channels based on OFDM signal, selector which selects, from sub-channels, several sub-channels which have higher channel response values than a value, each of channel response values being expressed by power level, signal-to-noise power ratio, or signal-to-interference ratio, determination unit configured to determine hopping pattern from selected sub-channels, transmitter which transmits, to base station, hopping pattern information item indicating determined hopping pattern, receiver which receives collision information from base station, and correction unit configured to correct hopping pattern based on collision information.
摘要翻译：用于从基站接收OFDM信号并使用子信道发送FH信号的无线电通信装置，基站比较表示包括无线电通信装置的无线电通信装置的跳频模式的跳频模式信息项，并且当跳频模式包括时产生冲突信息包括估计单元，其被配置为基于OFDM信号来估计子信道的信道响应值;选择器，其从子信道选择具有比值更高的信道响应值的几个子信道，每个信道响应值由功率电平，信噪比功率比或信号干扰比表示;确定单元，被配置为从所选择的子信道中确定跳频模式;发送器，向基站发送指示确定跳频的跳频模式信息项模式，接收器接收碰撞信息以及基于冲突信息来校正跳频图案的校正单元。

30. 发明申请

US20080205540A1 WIRELESS COMMUNICATION APPARATUS 审中-公开
标题翻译：无线通信设备
公开(公告)号：US20080205540A1
公开(公告)日：2008-08-28
申请号：US12106101
申请日：2008-04-18
申请人： Daisuke TAKEDA , Yoshimasa EGASHIRA , Tsuguhide AOKI , Yasuhiko TANABE , Kohsuke HARADA , Hironori UCHIKAWA
发明人： Daisuke TAKEDA , Yoshimasa EGASHIRA , Tsuguhide AOKI , Yasuhiko TANABE , Kohsuke HARADA , Hironori UCHIKAWA
IPC分类号： H04L1/02
CPC分类号： H04B7/04 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/0226
摘要： Before data is transmitted from a plurality of antennas, a plurality of known symbol sequences are transmitted from these antennas. Each known symbol sequence contains a plurality of known symbols having different subcarrier arrangements. Known symbols transmitted from different antennas have different subcarrier arrangements.
摘要翻译：在从多个天线发送数据之前，从这些天线发送多个已知符号序列。每个已知符号序列包含具有不同副载波布置的多个已知符号。从不同天线发送的已知符号具有不同的子载波布置。

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