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公开(公告)号：US20080133996A1
公开(公告)日：2008-06-05
申请号：US11813303
申请日：2005-12-08
申请人： Katsuyoshi Naka , Keiji Takakusaki
发明人： Katsuyoshi Naka , Keiji Takakusaki
CPC分类号： H04L1/1874 , H04L1/1671 , H04L1/1887
摘要： A wireless communication apparatus capable of effectively controlling retransmission. In this wireless communication apparatus (100), a frame aggregation part (111) aggregates basic unit data units (e.g., MPDUs) and adds a header thereto to form an aggregated frame. In response to a retransmission request from a receiving station (wireless communication apparatus (200)) as to the aggregated frame, a frame dividing part (112) divides the data part of the aggregated frame into segmented data blocks to form segmented frames. A frame control part (170) classifies the segmented frames into some groups in accordance with the reception qualities, at the receiving station, of the segmented data blocks of the aggregated frame. A transmission control part (185) transmits only the segmented frames of a group the reception quality of which is below a predetermined level. In this way, the transmission efficiency can be improved as compared with the retransmission of the aggregated frame, whereby the system throughput can be improved and hence an effective retransmission control can be achieved.
摘要翻译： 一种能够有效地控制重发的无线通信装置。 在该无线通信装置（100）中，帧聚合部（111）聚合基本单位数据单元（例如，MPDU），并向其中添加标题以形成聚合帧。 响应于来自接收站（无线通信装置（200））关于聚合帧的重传请求，帧分割部分（112）将聚合帧的数据部分划分成分段数据块以形成分段帧。 帧控制部分（170）根据在接收站处的聚合帧的分段数据块的接收质量将分段帧分类成一些组。 发送控制部（185）仅发送其接收质量低于预定电平的组的分段帧。 以这种方式，与聚合帧的重传相比，可以提高传输效率，从而可以提高系统吞吐量，从而可以实现有效的重传控制。
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公开(公告)号：US20110181471A1
公开(公告)日：2011-07-28
申请号：US13079415
申请日：2011-04-04
IPC分类号： G01S3/14
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： A device for estimating a direction-of-arrival of a radio wave, the device comprising an array antenna including a plurality of antenna elements for receiving a high frequency signal, a demultiplexer for demultiplexing the received high frequency signal for each of the plurality of antenna elements to generate a plurality of frequency component signals and a direction estimating unit for estimating the direction-of-arrival of the radio wave by using two or more of the plurality of frequency component signals which are contiguous in a frequency direction.
摘要翻译： 一种用于估计无线电波的到达方向的装置，该装置包括：阵列天线，包括用于接收高频信号的多个天线元件;解复用器，用于对接收到的多个天线中的每个天线的高频信号进行解复用 用于生成多个频率分量信号的单元;以及方向估计单元，用于通过使用在频率方向上连续的多个频率分量信号中的两个或更多个来估计无线电波的到达方向。
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公开(公告)号：US07593317B2
公开(公告)日：2009-09-22
申请号：US10503010
申请日：2003-08-01
IPC分类号： H04J11/00
CPC分类号： H01Q3/2605 , H01Q3/267 , H04B7/0617 , H04B7/086 , H04B17/10 , H04B17/12 , H04B17/18 , H04B17/20 , H04B17/21 , H04L1/06 , H04L27/2602 , H04L27/2626 , H04L27/2647
摘要： A transmission weight computing section computes a transmission weight for directional transmission using an OFDM signal. A transmission correcting value memory section stores one correcting value for correcting the transmission weight for each sub-carrier of an OFDM signal or each band gathering a plurality of sub-carriers. A transmission weight correcting section corrects the transmission weight by the correcting value. A transmitting branch weights transmission data by a transmission weight outputted from the transmission weight correcting section on a sub-carrier-by-sub-carrier basis and delivers it to an antenna.
摘要翻译： 传输权重计算部分使用OFDM信号来计算定向传输的传输权重。 发送校正值存储部存储用于校正OFDM信号的每个子载波的发送权重或收集多个子载波的每个频带的一个校正值。 发送权重校正部通过校正值来校正发送权重。 发送分支通过从子载波子载波基础上从发送加权校正部分输出的发送权重对发送数据进行加权，并将其发送到天线。
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公开(公告)号：US07333056B2
公开(公告)日：2008-02-19
申请号：US10524253
申请日：2003-09-26
IPC分类号： G01S5/02
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： An adaptive antenna radio communication device comprises a divided band direction estimating unit (4) for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna (1) and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit (5) for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit (6) for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
摘要翻译： 一种自适应天线无线电通信装置包括：分频带方向估计单元，用于通过计算由阵列天线（1）接收的各个分频带的导频信号和副载波信号之间的互相关，来估计方向，并计算 通过根据互相关计算的输出组合不同子载波的天线元件之间的相关值确定的相关矩阵的空间分布; 分割带阵列权重创建单元（5），用于在每个分割频带的方向上产生具有定向波束的接收阵列的权重; 以及子载波方向性创建单元（6），用于通过将创建的接收阵列权重与相应的副载波信号相乘合成来产生方向性。
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公开(公告)号：US07058425B1
公开(公告)日：2006-06-06
申请号：US09744029
申请日：2000-05-22
申请人： Keiji Takakusaki
发明人： Keiji Takakusaki
IPC分类号： H04M1/00
CPC分类号： F24F11/30 , F24F11/54 , F24F11/56 , F24F11/62 , H01Q3/26 , H01Q3/2605 , H01Q3/267 , H04B1/0475 , H04B7/0615 , H04B7/0617 , H04B2001/0416
摘要： Baseband signal generator 107 outputs a transmission baseband signal with a coefficient for setting antenna directivity multiplied and a gain control signal to transmit power amplifier 114 and transmit power amplifier 114 amplifies the transmission baseband signal with a gain corresponding to the gain control signal and transmits the signal from antenna 102. ATT 118 attenuates the output signal of amplifier 114 according to the gain control signal, amplitude/phase comparator 110 calculates amplitude and phase errors between the attenuated signal with a frequency equalized by frequency conversion sections 120 and 121 and the input signal of amplifier 114 and phase/amplitude correction section 108 corrects the transmission baseband signal and gain control signal so as to eliminate the errors. This makes it possible to correct the amplitude and phase shifts of the transmission signal during a communication with other apparatuses and reduce the size and cost of the apparatus.
摘要翻译： 基带信号发生器107输出具有用于设置天线方向性的系数的发送基带信号和用于发送功率放大器114的增益控制信号，发送功率放大器114以与增益控制信号相对应的增益放大发送基带信号，并发送信号 来自天线102。 ATT 118根据增益控制信号衰减放大器114的输出信号，振幅/相位比较器110计算由频率转换部分120和121等效的频率的衰减信号与放大器114的输入信号和相位之间的相位误差 /幅度校正部分108校正发送基带信号和增益控制信号，以消除误差。 这使得可以在与其他设备的通信期间校正传输信号的幅度和相移，并且减小设备的尺寸和成本。
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公开(公告)号：US08599071B2
公开(公告)日：2013-12-03
申请号：US13079415
申请日：2011-04-04
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： A device for estimating a direction-of-arrival of a radio wave, the device comprising an array antenna including a plurality of antenna elements for receiving a high frequency signal, a demultiplexer for demultiplexing the received high frequency signal for each of the plurality of antenna elements to generate a plurality of frequency component signals and a direction estimating unit for estimating the direction-of-arrival of the radio wave by using two or more of the plurality of frequency component signals which are contiguous in a frequency direction.
摘要翻译： 一种用于估计无线电波的到达方向的装置，该装置包括：阵列天线，包括用于接收高频信号的多个天线元件;解复用器，用于对接收到的多个天线中的每个天线的高频信号进行解复用 用于生成多个频率分量信号的单元;以及方向估计单元，用于通过使用在频率方向上连续的多个频率分量信号中的两个或更多个来估计无线电波的到达方向。
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7.发明申请公开(公告)号：US20110243027A1
公开(公告)日：2011-10-06
申请号：US13160872
申请日：2011-06-15
IPC分类号： H04W24/00
CPC分类号： H04L1/0026 , H04L1/0003 , H04L1/0009 , H04L1/0029 , H04L1/003 , H04L5/0007 , H04L5/0046 , H04L5/006 , H04L5/0091 , H04L25/022
摘要： A mobile terminal device for performing multi-carrier communication with a base station device can improve communication quality while reducing the data amount without lowering accuracy of feedback information. In the mobile station device (100), a reception level measuring unit (135) measuring SINR as a reception level for each chunk formed by a plurality of sub-carriers according to a known signal; a control information transmission control unit (160) transmits feedback information (CQI information) based on the communication quality of each chunk to a base station device (200); a relative value calculation unit (150) calculates a relative value of MCS corresponding to the reception level between adjacent chunks from the reception level of each chunk; and a CQI information generation unit (155) generates feedback information (CQI information) from an absolute value of MCS corresponding to the reception level of the reference chunk and a relative value of MCS corresponding to the reception level between the adjacent chunks.
摘要翻译： 用于与基站设备进行多载波通信的移动终端设备可以在降低数据量的同时提高通信质量，而不降低反馈信息的准确性。 在所述移动台装置（100）中，根据已知信号，将由SINR构成的每个块的接收电平测量SINR的接收电平测量单元（135） 控制信息发送控制部（160）将基于各块的通信质量的反馈信息（CQI信息）发送到基站装置（200）; 相对值计算单元从每个块的接收电平计算与相邻块之间的接收电平相对应的MCS的相对值; CQI信息生成部（155）根据与基准块的接收电平对应的MCS的绝对值和与相邻的块之间的接收电平相对应的MCS的相对值生成反馈信息（CQI信息）。
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公开(公告)号：US07936811B2
公开(公告)日：2011-05-03
申请号：US11597420
申请日：2005-05-24
CPC分类号： H04L27/2637 , H04L27/2649
摘要： A modulating device capable of generating an OFDM signal and having a drastically improved frequency use efficiency. The modulating device has modulators (6, 8 (11, 13, 106, 108, 111, 113)) for modulating a signal to be modulated and having a Nyquist roll-off frequency characteristic with a carrier frequency having a difference two times the Nyquist frequency and combiners (10(15, 110, 115)) for generating modulation output having a speed two times that of the signal to demodulated and the same Nyquist roll-off slope as the signal to be modulated by combining the outputs of the modulators (6, 8 (11, 13, 106, 108, 111, 113)). Thus a double speed wave can be superposed on the same frequency without varying the roll-off slope of the Nyquist characteristic, and therefore an OFDM signal (19) having a drastically improved frequency use efficiency is provided.
摘要翻译： 一种调制装置，能够产生OFDM信号并具有显着提高的频率使用效率。 调制装置具有用于调制要调制的信号并且具有奈奎斯特滚降频率特性的调制器（6,8（11,13,106,108,111,113）），其载波频率的差值是奈奎斯特 频率和组合器（10（15,110,115）），用于产生具有要解调的信号的速度的两倍的调制输出和与要调制的信号相同的奈奎斯特滚降斜率（通过组合调制器的输出） 6，8（11，13，106，108，111，113））。 因此，可以将双速波叠加在同一频率上，而不改变奈奎斯特特性的滚降斜率，因此提供了频率提高的频率使用效率的OFDM信号（19）。
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公开(公告)号：US20100195707A1
公开(公告)日：2010-08-05
申请号：US11997710
申请日：2005-08-04
CPC分类号： H04L1/0026 , H04L1/0003 , H04L1/0009 , H04L1/0029 , H04L1/003 , H04L5/0007 , H04L5/0046 , H04L5/006 , H04L5/0091 , H04L25/022
摘要： A mobile terminal device for performing multi-carrier communication with a base station device can improve communication quality while reducing the data amount without lowering accuracy of feedback information. In the mobile station device (100), a reception level measuring unit (135) measuring SINR as a reception level for each chunk formed by a plurality of sub-carriers according to a known signal; a control information transmission control unit (160) transmits feedback information (CQI information) based on the communication quality of each chunk to a base station device (200); a relative value calculation unit (150) calculates a relative value of MCS corresponding to the reception level between adjacent chunks from the reception level of each chunk; and a CQI information generation unit (155) generates feedback information (CQI information) from an absolute value of MCS corresponding to the reception level of the reference chunk and a relative value of MCS corresponding to the reception level between the adjacent chunks.
摘要翻译： 用于与基站设备进行多载波通信的移动终端设备可以在降低数据量的同时提高通信质量，而不降低反馈信息的准确性。 在所述移动台装置（100）中，根据已知信号，将由SINR构成的每个块的接收电平测量SINR的接收电平测量单元（135） 控制信息发送控制部（160）将基于各块的通信质量的反馈信息（CQI信息）发送到基站装置（200）; 相对值计算单元从每个块的接收电平计算与相邻块之间的接收电平相对应的MCS的相对值; CQI信息生成部（155）根据与基准块的接收电平对应的MCS的绝对值和与相邻的块之间的接收电平相对应的MCS的相对值生成反馈信息（CQI信息）。
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10.发明授权Path search circuit, radio receiver and radio transmitter, utilizing a directional beam 有权路径搜索电路，无线电接收机和无线电发射机，利用定向波束公开(公告)号：US07088956B2
公开(公告)日：2006-08-08
申请号：US10411344
申请日：2003-04-10
CPC分类号： H04B1/7113 , H04B1/7117 , H04B7/086
摘要： A path search circuit according to the present invention has an orthogonal multi-beam forming section 4 for directional reception with a plurality of orthogonal multi-beams orthogonal one to another, correlation-operating sections 61–6M for correlation-operating outputs of the orthogonal multi-beam forming section 4 with a known signal, weight multiplying sections 81–8Nb for multiplying the output of the correlation-operating section 61–6M by a weight converted into a beam space, delay profile generating sections 91–9Nb for generating delay profiles from the output signals of the weight multiplying sections 81–8Nb, and a path detecting section 10 for detecting a reception timing and arrival direction of arrival path from the delay profile. This path search circuit can enhance the accuracy of path direction detection by the use of a directional reception signal, and further reduce the direction dependence of path timing detection accuracy.
摘要翻译： 根据本发明的路径搜索电路具有用于定向接收的正交多波束形成部分4，其中多个正交多波束彼此正交，相关运算部分61-6M用于正交的相关运算输出 具有已知信号的多波束形成部分4，用于将相关操作部分61-6M的输出乘以被转换成波束空间的权重的加权乘法部分81-8 Nb，延迟分布生成部分91-9 Nb 从权重乘法部分81-8 Nb的输出信号产生延迟分布;以及路径检测部分10，用于从延迟分布中检测接收定时和到达方向到达方向。 该路径搜索电路可以通过使用定向接收信号来提高路径方向检测的精度，进一步减小路径定时检测精度的方向依赖性。
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