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29 条记录 (耗时 0.034 秒)

    Radio communication apparatus, base station and system
    11.
    发明申请
    Radio communication apparatus, base station and system 审中-公开
    无线电通信装置，基站和系统

    公开(公告)号：US20060013285A1

    公开(公告)日：2006-01-19

    申请号：US11152227

    申请日：2005-06-15

    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。

    Wireless communication apparatus
    15.
    发明授权
    Wireless communication apparatus 失效
    无线通信装置

    公开(公告)号：US07508878B2

    公开(公告)日：2009-03-24

    申请号：US11167302

    申请日：2005-06-28

    申请人： Yoshimasa Egashira ,  Daisuke Takeda ,  Yasuhiko Tanabe

    发明人： Yoshimasa Egashira ,  Daisuke Takeda ,  Yasuhiko Tanabe

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0691 ,  H04B7/02 ,  H04L27/261

    摘要： A wireless communication apparatus having a plurality of antennas for transmitting a known symbol by using a plurality of subcarriers to a receiver, the known symbol including known information, the apparatus includes each of the subcarriers which carries the known information being classified into at least two groups, and a phase control unit configure to control inversion/non-inversion of a phase of the known information carried on two subcarriers which belong to the same group in accordance with notification information to be notified to the receiver.

    摘要翻译： 一种具有多个天线的无线通信装置，用于通过使用多个子载波向接收机发送已知符号，所述已知符号包括已知信息，所述装置包括携带已知信息的每个子载波被分类为至少两个组 以及相位控制单元，其被配置为根据要通知给接收机的通知信息来控制属于同一组的两个子载波上携带的已知信息的相位的反相/非反相。

    Wireless communication apparatus
    16.
    发明申请
    Wireless communication apparatus 失效
    无线通信装置

    公开(公告)号：US20050286651A1

    公开(公告)日：2005-12-29

    申请号：US11167302

    申请日：2005-06-28

    申请人： Yoshimasa Egashira ,  Daisuke Takeda ,  Yasuhiko Tanabe

    发明人： Yoshimasa Egashira ,  Daisuke Takeda ,  Yasuhiko Tanabe

    IPC分类号： H04J99/00 ,  H04B7/02 ,  H04B7/06 ,  H04B7/10 ,  H04L1/02 ,  H04L27/26 ,  H04L27/28

    CPC分类号： H04B7/0691 ,  H04B7/02 ,  H04L27/261

    摘要： A wireless communication apparatus having a plurality of antennas for transmitting a known symbol by using a plurality of subcarriers to a receiver, the known symbol including known information, the apparatus includes each of the subcarriers which carries the known information being classified into at least two groups, and a phase control unit configure to control inversion/non-inversion of a phase of the known information carried on two subcarriers which belong to the same group in accordance with notification information to be notified to the receiver.

    摘要翻译： 一种具有多个天线的无线通信装置，用于通过使用多个子载波向接收机发送已知符号，所述已知符号包括已知信息，所述装置包括携带已知信息的每个子载波被分类为至少两个组 以及相位控制单元，其被配置为根据要通知给接收机的通知信息来控制属于同一组的两个子载波上携带的已知信息的相位的反相/非反相。

    Wireless communication apparatus and method for estimating number of antennas
    17.
    发明申请
    Wireless communication apparatus and method for estimating number of antennas 审中-公开
    用于估计天线数量的无线通信装置和方法

    公开(公告)号：US20060034385A1

    公开(公告)日：2006-02-16

    申请号：US11200122

    申请日：2005-08-10

    申请人： Yoshimasa Egashira ,  Daisuke Takeda ,  Yasuhiko Tanabe

    发明人： Yoshimasa Egashira ,  Daisuke Takeda ,  Yasuhiko Tanabe

    IPC分类号： H04L1/02

    CPC分类号： H04B7/0682 ,  H04B7/0669 ,  H04L27/261

    摘要： wireless communication apparatus (transmitter) including a plurality of antennas for transmitting a plurality of known symbol sequences and data symbols, transmits the known symbol sequences, each of the known symbol sequences including a plurality of known symbols, each of the known symbols whose plural known information being carried on a plurality of subcarriers, a phase of last known symbol of the each of the known symbol sequences being rotated, and transmits the data symbols after the known symbol sequences are transmitted.

    摘要翻译： 包括用于发送多个已知符号序列和数据符号的多个天线的无线通信装置（发射机）发送已知符号序列，每个已知符号序列包括多个已知符号，每个已知符号具有多个已知符号 信息被携带在多个子载波上，每个已知符号序列的最后一个已知符号的相位被旋转，并且在已知符号序列被发送之后发送数据符号。

    WIRELESS TRANSMISSION METHOD AND APPARATUS
    18.
    发明申请
    WIRELESS TRANSMISSION METHOD AND APPARATUS 有权
    无线传输方法和设备

    公开(公告)号：US20100260288A1

    公开(公告)日：2010-10-14

    申请号：US12823793

    申请日：2010-06-25

    申请人： Tsuguhide Aoki ,  Yoshimasa Egashira

    发明人： Tsuguhide Aoki ,  Yoshimasa Egashira

    IPC分类号： H01Q11/12 ,  H04L25/49

    CPC分类号： H04B7/0452 ,  H04B7/043 ,  H04B7/0465

    摘要： According to one embodiment, a wireless transmission method is disclosed. The method can perform feedback loop processing including subtracting a feedback data signal obtained by multiplying a feedback processing data signal by a gain from an input data signal to generate the feedback processing data signal. The method can perform beam forming processing with respect to the feedback processing data signal and at least one pilot signal for channel estimation to generate a beam-formed signal. In addition, the method can transmit the beam-formed signal by a plurality of antennas. Precoding processing performed on the pilot signal is only beam forming processing.

    摘要翻译： 根据一个实施例，公开了一种无线传输方法。 该方法可以执行反馈环路处理，包括减去通过将反馈处理数据信号乘以来自输入数据信号的增益而获得的反馈数据信号，以产生反馈处理数据信号。 该方法可以对反馈处理数据信号和至少一个导频信号进行波束形成处理，以进行信道估计以产生波束形成的信号。 此外，该方法可以通过多个天线发射波束形成的信号。 对导频信号执行的预编码处理只是波束形成处理。

    Wireless transmission method and apparatus
    19.
    发明授权
    Wireless transmission method and apparatus 有权
    无线传输方法和装置

    公开(公告)号：US08249189B2

    公开(公告)日：2012-08-21

    申请号：US12823793

    申请日：2010-06-25

    申请人： Tsuguhide Aoki ,  Yoshimasa Egashira

    发明人： Tsuguhide Aoki ,  Yoshimasa Egashira

    IPC分类号： H04K1/02

    CPC分类号： H04B7/0452 ,  H04B7/043 ,  H04B7/0465

    摘要： According to one embodiment, a wireless transmission method is disclosed. The method can perform feedback loop processing including subtracting a feedback data signal obtained by multiplying a feedback processing data signal by a gain from an input data signal to generate the feedback processing data signal. The method can perform beam forming processing with respect to the feedback processing data signal and at least one pilot signal for channel estimation to generate a beam-formed signal. In addition, the method can transmit the beam-formed signal by a plurality of antennas. Precoding processing performed on the pilot signal is only beam forming processing.

    摘要翻译： 根据一个实施例，公开了一种无线传输方法。 该方法可以执行反馈环路处理，包括减去通过将反馈处理数据信号乘以来自输入数据信号的增益而获得的反馈数据信号，以产生反馈处理数据信号。 该方法可以对反馈处理数据信号和至少一个导频信号进行波束形成处理，以进行信道估计以产生波束形成的信号。 此外，该方法可以通过多个天线发射波束形成的信号。 对导频信号执行的预编码处理只是波束形成处理。

    Wireless communication method using OFDM, OFDM receiving method and apparatus thereof
    20.
    发明授权
    Wireless communication method using OFDM, OFDM receiving method and apparatus thereof 有权
    使用OFDM的无线通信方法，OFDM接收方法及其装置

    公开(公告)号：US07649832B2

    公开(公告)日：2010-01-19

    申请号：US11824028

    申请日：2007-06-29

    申请人： Yoshimasa Egashira ,  Yasuhiko Tanabe

    发明人： Yoshimasa Egashira ,  Yasuhiko Tanabe

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2647 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/261

    摘要： A receiving method receiving an OFDM signal including a first OFDM symbol having first and second pilot signals allocated to first and second subcarriers positioned symmetric on the frequency axis, and a second OFDM symbol having third and fourth pilot signals allocated to the first and the second subcarriers, a difference between a product of the first pilot signal and a complex conjugate of the fourth pilot signal and a product of the third pilot signal and a complex conjugate of the second pilot signal being non-zero, estimating a first coefficient representing a change components of an amplitude and a phase, and a second coefficient representing an interference component, using first and second received pilot signals corresponding to the first and third pilot signals, estimating from the first and second coefficients IQ imbalance, and compensating the influence of amplitude and phase errors in accordance with the IQ imbalance.

    摘要翻译： 一种接收OFDM信号的接收方法，包括具有分配给频率轴上对称的第一和第二子载波的第一和第二导频信号的第一OFDM符号，以及分配给第一和第二子载波的第三和第四导频信号的第二OFDM符号 ，第一导频信号的乘积与第四导频信号的复共轭与第三导频信号的乘积与第二导频信号的复共轭之间的差为零，估计表示变化分量的第一系数 使用表示干扰分量的第二系数，使用与第一和第三导频信号对应的第一和第二接收导频信号，从第一和第二系数IQ不平衡估计，并补偿振幅和相位的影响 按照IQ失调的误差。