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71 条记录 (耗时 0.037 秒)

    Communication device, base station, and base station system
    41.
    发明授权
    Communication device, base station, and base station system 有权
    通信设备，基站和基站系统

    公开(公告)号：US08842743B2

    公开(公告)日：2014-09-23

    申请号：US13612592

    申请日：2012-09-12

    申请人： Tsuguhide Aoki ,  Yuji Tohzaka ,  Yasuhiko Tanabe

    发明人： Tsuguhide Aoki ,  Yuji Tohzaka ,  Yasuhiko Tanabe

    IPC分类号： H04B3/00 ,  H04W72/04

    CPC分类号： H04W72/046

    摘要： According to one embodiment, a communication device communicates with N remote units. Each remote unit includes a plurality of antennas, wireless transmitting units, and wireless receiving units. The communication device is provided with a received signal processing unit, to which received signals by a plurality of the wireless receiving units are combined and input, and which specifies the remote unit subjected to interference, and a switch which decreases a reception gain of the wireless receiving unit included in N−1 remote units out of the N remote units in a predetermined measurement section. The received signal processing unit calculates a correlation value between the combined received signals and a reference signal transmitted by a user terminal connected to another base station system in the measurement section and specifies the remote unit subjected to the interference by the second user terminal based on the correlation value.

    摘要翻译： 根据一个实施例，通信设备与N个远程单元进行通信。 每个远程单元包括多个天线，无线发射单元和无线接收单元。 通信装置设置有接收信号处理单元，组合并输入多个无线接收单元的接收信号，并指定受到干扰的远程单元，以及降低无线接收增益的开关 在预定测量部分中的N个远程单元中的N-1个远程单元中包括的接收单元。 接收信号处理单元计算组合的接收信号与由测量部连接到另一个基站系统的用户终端发送的参考信号之间的相关值，并且基于第二用户终端指定遭受第二用户终端的干扰的远程单元 相关值。

    OFDM signal transmitting method and transmitter and receiver thereof
    44.
    发明授权
    OFDM signal transmitting method and transmitter and receiver thereof 失效
    OFDM信号发射方法及其发射机和接收机

    公开(公告)号：US07643567B2

    公开(公告)日：2010-01-05

    申请号：US11641726

    申请日：2006-12-20

    申请人： Yoshimasa Egashira ,  Yasuhiko Tanabe

    发明人： Yoshimasa Egashira ,  Yasuhiko Tanabe

    IPC分类号： H04K1/10 ,  H04L27/28

    CPC分类号： H04L5/0048 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2613 ,  H04L2025/03426

    摘要： A transmitting method of OFDM signal includes allocating first and second channel estimation preamble signals for channel response estimation respectively to +kth and −kth subcarriers from center frequency of first OFDM signal, allocating first and second pilot signals for residual phase offset estimation respectively to +kth and −kth subcarriers from center frequency of second OFDM signal, transmitting first and second OFDM signals respectively in different time zones using at least one antenna, where, first product of complex conjugate of first channel estimation preamble signal and second pilot signal is equal to second product of second channel estimation preamble signal and complex conjugate of first pilot signal.

    摘要翻译： OFDM信号的发送方法包括从第一OFDM信号的中心频率向第k个和第k个子载波分别分配用于信道响应估计的第一和第二信道估计前导信号，分别将残差相位偏移估计的第一和第二导频信号分配到第k个 并且使用至少一个天线分别在不同的时间区域中发射第一和第二OFDM信号，其中，第一信道估计前导信号和第二导频信号的复共轭的第一乘积等于第二个OFDM信号 第二信道估计前导信号的乘积和第一导频信号的复共轭。

    WIRELESS TRANSMITTING AND RECEIVING DEVICE AND METHOD
    45.
    发明申请
    WIRELESS TRANSMITTING AND RECEIVING DEVICE AND METHOD 有权
    无线传输和接收设备及方法

    公开(公告)号：US20090304107A1

    公开(公告)日：2009-12-10

    申请号：US12543126

    申请日：2009-08-18

    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： H04B7/02 ,  H04L27/08

    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。

    Wireless communication method using OFDM and OFDM transmitter and receiver thereof
    46.
    发明授权
    Wireless communication method using OFDM and OFDM transmitter and receiver thereof 有权
    使用OFDM和OFDM发射机的无线通信方法及其接收机

    公开(公告)号：US07626921B2

    公开(公告)日：2009-12-01

    申请号：US11669478

    申请日：2007-01-31

    申请人： Yoshimasa Egashira ,  Yasuhiko Tanabe ,  Kazumi Sato

    发明人： Yoshimasa Egashira ,  Yasuhiko Tanabe ,  Kazumi Sato

    IPC分类号： H04J11/00

    CPC分类号： H04L5/0048 ,  H04L5/0007 ,  H04L25/0226 ,  H04L25/03159 ,  H04L2025/03414 ,  H04L2027/0016 ,  H04L2027/0024

    摘要： A wireless communication method includes generating and transmitting an OFDM signal containing a first OFDM symbol possessing a first transmitting pilot signal and a second transmitting pilot signal respectively allocated to a first subcarrier and a second subcarrier being symmetric with respect to a center frequency on a frequency axis, and a second OFDM symbol possessing a third transmitting pilot signal and a fourth transmitting pilot signal respectively allocated to the first subcarrier and the second subcarrier, wherein a difference between a product of a first transmitting pilot signal and a complex conjugate of a fourth transmitting pilot signal and a product of a third transmitting pilot signal and a complex conjugate of a second transmitting pilot signal is non-zero.

    摘要翻译： 一种无线通信方法，包括生成和发送包含分别分配给第一子载波的第一OFDM符号的第一OFDM符号和相对于频率轴上的中心频率对称的第二副载波的OFDM信号 以及分别分配给第一子载波和第二副载波的第三发送导频信号和第四发送导频信号的第二OFDM符号，其中，第一发射导频信号与第四发射导频的复共轭的乘积之差 信号和第三发射导频信号与第二发射导频信号的复共轭的乘积不为零。

    Wireless transmitting and receiving device and method
    47.
    发明授权
    Wireless transmitting and receiving device and method 有权
    无线发射和接收设备及方法

    公开(公告)号：US07587002B2

    公开(公告)日：2009-09-08

    申请号：US12239435

    申请日：2008-09-26

    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： H04L27/00

    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。

    Wireless communication method using OFDM, OFDM receiving method and apparatus thereof
    49.
    发明申请
    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：US20080037410A1

    公开(公告)日：2008-02-14

    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。