公开(公告)号：US08958767B2

公开(公告)日：2015-02-17

申请号：US13422636

申请日：2012-03-16

申请人： Shoji Otaka ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

发明人： Shoji Otaka ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

IPC分类号： H04B1/06 ,  H04W52/02 ,  H03L7/08 ,  H03L7/197 ,  H04L25/02 ,  H04L27/38

CPC分类号： H04W52/0274 ,  H03L7/0802 ,  H03L7/1976 ,  H03L2207/50 ,  H04L25/0292 ,  H04L27/38 ,  H04L27/3818 ,  H04W52/0229 ,  Y02D70/142

摘要： A radio apparatus includes an antenna; an amplifier that amplifies a radio signal, received via the antenna; a first mixer that frequency converts the amplified radio signal to generate a first analog signal; a first A/D converter that converts the first analog signal to generate a first digital signal; a second mixer that frequency converts the amplified signal to generate a second analog signal; a second A/D converter means that converts the second analog signal to generate a second digital signal; a demodulator means that demodulates the first and second digital signals to generate a demodulated signal; a detector that detects a preamble from the first digital signal; and a control means that halts the second mixer and second A/D converter during the wait for the radio signal and that activates the second mixer and second A/D converter when the detector detects the preamble.

摘要翻译： 无线电设备包括天线; 放大器，放大经由天线接收的无线电信号; 第一混频器，其对放大的无线电信号进行频率转换以产生第一模拟信号; 第一A / D转换器，其转换第一模拟信号以产生第一数字信号; 第二混频器，其对放大的信号进行频率转换以产生第二模拟信号; 第二A / D转换器，用于转换第二模拟信号以产生第二数字信号; 解调器装置，解调第一和第二数字信号以产生解调信号; 检测器，其从所述第一数字信号检测前导码; 以及控制装置，其在等待无线电信号期间停止第二混频器和第二A / D转换器，并且当检测器检测到前导码时激活第二混频器和第二A / D转换器。

公开(公告)号：US20130250872A1

公开(公告)日：2013-09-26

申请号：US13729624

申请日：2012-12-28

申请人： Tsuguhide AOKI ,  Yasuhiko TANABE

发明人： Tsuguhide AOKI ,  Yasuhiko TANABE

IPC分类号： H04W72/04

CPC分类号： H04W72/0406 ,  H04B7/00 ,  H04B7/04 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/1671 ,  H04L12/28 ,  H04W52/24 ,  H04W52/265 ,  H04W72/0446

摘要： According to one embodiment, a wireless communication apparatus includes a calculator and a controller. The calculator multiplies a first weighting factor by a first data signal to be transmitted on a first channel, the first weighting factor is based on a second weighting factor multiplied by a second data signal received on the first channel. The controller controls a transmission to transmit to a destination device a control signal if the first data signal transmitted to the partner device exists, and no second data signal to be transmitted on the first channel exists in the device.

摘要翻译： 根据一个实施例，无线通信装置包括计算器和控制器。 计算器将第一加权因子乘以要在第一信道上发送的第一数据信号，第一加权因子基于乘以在第一信道上接收的第二数据信号的第二加权因子。 如果发送到对方设备的第一数据信号存在，则控制器控制传输以向目的地设备发送控制信号，并且在设备中不存在要在第一信道上发送的第二数据信号。

公开(公告)号：US20130070694A1

公开(公告)日：2013-03-21

申请号：US13526042

申请日：2012-06-18

申请人： Yuji Tohzaka ,  Hiroki Mori ,  Tsuguhide Aoki ,  Yasuhiko Tanabe

发明人： Yuji Tohzaka ,  Hiroki Mori ,  Tsuguhide Aoki ,  Yasuhiko Tanabe

IPC分类号： H04W72/08

CPC分类号： H04W72/08

摘要： According to one embodiment, an allocating unit of a wireless communication device finds for each user an unallocated radio channel having maximum communication quality as a first radio channel, and calculates a first metric matching a communication state using communication quality in the first radio channel, selects one user from the plurality of users based on the first metric and allocates the first radio channel to the selected user. Further, the allocating unit repeats allocating an unallocated radio channel adjacent to a radio channel allocated to the selected user on a frequency domain until predetermined conditions are satisfied.

摘要翻译： 根据一个实施例，无线通信设备的分配单元为每个用户找到具有最大通信质量的未分配无线电信道作为第一无线电信道，并且使用第一无线电信道中的通信质量来计算与通信状态匹配的第一度量，选择 基于所述第一度量从所述多个用户中选择一个用户，并将所述第一无线电信道分配给所选择的用户。 此外，分配单元重复在频域上分配与分配给所选用户的无线电信道相邻的未分配无线电信道，直到满足预定条件。

公开(公告)号：US20120214434A1

公开(公告)日：2012-08-23

申请号：US13421391

申请日：2012-03-15

申请人： Shoji OTAKA ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

发明人： Shoji OTAKA ,  Takafumi Yamaji ,  Tsutomu Sugawara ,  Yasuhiko Tanabe ,  Masahiro Hosoya ,  Hiroki Sakurai

IPC分类号： H04B7/12 ,  H04B7/00 ,  H04B7/08

CPC分类号： H03L7/18 ,  H03L7/0802 ,  H04L27/38 ,  H04L27/3818 ,  H04W52/0229 ,  H04W52/0274 ,  Y02D70/142

摘要： A radio apparatus includes a first receiver that is a processing unit for amplifying and frequency converting a radio signal received via an antenna, thereby outputting an IF signal; a detector unit for detecting a preamble signal from the IF signal; a second receiver for amplifying and quadrature demodulating the radio signal, thereby generating an I-signal and a Q-signal; a demodulator unit for demodulating the I-signal and Q-signal to generate a data signal; and a control unit for halting the operation of the first receiver and further activating the second receiver when the detector unit detects the preamble signal and for activating the first receiver and halting the operation of the second receiver when the demodulator unit completes the demodulation of the I-signal and Q-signal.

摘要翻译： 无线电设备包括：第一接收机，其是用于放大和频率转换经由天线接收的无线电信号的处理单元，从而输出IF信号; 检测单元，用于检测来自IF信号的前置信号; 第二接收机，用于放大和正交解调无线电信号，由此产生I信号和Q信号; 解调器单元，用于解调I信号和Q信号以产生数据信号; 以及控制单元，用于当所述检测器单元检测到所述前导信号并激活所述第一接收机并且当所述解调器单元完成所述I的解调时停止所述第二接收机的操作时，停止所述第一接收机的操作并进一步激活所述第二接收机 信号和Q信号。

公开(公告)号：US20120102378A1

公开(公告)日：2012-04-26

申请号：US13092603

申请日：2011-04-22

申请人： Tadashi MATSUMOTO ,  Tsuguhide AOKI ,  Yasuhiko TANABE

发明人： Tadashi MATSUMOTO ,  Tsuguhide AOKI ,  Yasuhiko TANABE

IPC分类号： H03M13/05 ,  G06F11/10

CPC分类号： H04L1/0045 ,  H03M13/2792 ,  H03M13/2957 ,  H04B7/155 ,  H04L1/005 ,  H04L2001/0097

摘要： In one embodiment, a wireless relay apparatus for replaying a signal processed by first encoding from a transmitting apparatus to a receiving apparatus is disclosed. The apparatus includes a demodulation unit, a decoding unit, a detection unit, an extraction unit, and an encoding unit. The demodulation unit demodulates a received signal. The decoding unit performs error correction decoding corresponding to the first encoding on the demodulated signal. The detection unit detects an error in a decoded signal. The extraction unit extracts a portion pertaining to information data from the demodulated signal by hard decision, if the detection unit detects an error. The encoding unit performs error correcting coding on the extracted portion pertaining to the information data with an error. The information data encoded by the encoding unit is transmitted.

摘要翻译： 在一个实施例中，公开了一种用于通过第一编码从发送装置向接收装置重放处理的信号的无线中继装置。 该装置包括解调单元，解码单元，检测单元，提取单元和编码单元。 解调单元对接收到的信号进行解调。 解码单元对解调信号执行对应于第一编码的纠错解码。 检测单元检测解码信号中的错误。 如果检测单元检测到错误，则提取单元通过硬判定从解调信号中提取属于信息数据的部分。 编码单元对具有错误的信息数据的提取部分进行纠错编码。 由编码单元编码的信息数据被发送。

公开(公告)号：US08130868B2

公开(公告)日：2012-03-06

申请号：US12338858

申请日：2008-12-18

申请人： Tsuguhide Aoki ,  Hiroki Mori ,  Yasuhiko Tanabe

发明人： Tsuguhide Aoki ,  Hiroki Mori ,  Yasuhiko Tanabe

IPC分类号： H04L27/04

CPC分类号： H04B7/0615 ,  H04L5/0007 ,  H04L5/0044 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A radio communication apparatus includes: generation units generating first to mth signals; a storage storing allocation information defining that beams of different quality levels are allocated to first to mth communication apparatuses for each of first to nth subcarriers so that frequencies of respective quality levels are substantially uniform over all the subcarriers among the apparatuses; determining units determining transmission weights by which the signals are multiplied so that the beams according to the allocation information are formed for the apparatuses for each of the subcarriers; generation units performing multiplication processing by using the signals and the weights for each of the subcarriers to generate first to hth weighted signals for each of the subcarriers; transform units performing inverse Fourier transform on the weighted signals for each of the subcarriers to generate first to hth transformed signals; and transmission processing units transmitting the transformed signals via first to hth antennas.

摘要翻译： 无线电通信装置包括：产生第一至第m信号的发生单元; 存储分配信息，其将不同质量级别的波束分配给第一至第m通信装置，用于第一至第N个子载波中的每一个，使得各个质量等级的频率在所述装置中的所有子载波上基本均匀; 确定单元确定信号被乘以的传输权重，使得针对每个子载波的装置形成根据分配信息的波束; 生成单元通过使用每个子载波的信号和权重来执行乘法处理，以生成每个子载波的第一至第h加权信号; 变换单元对每个子载波对加权信号执行逆傅里叶变换，以产生第一至第H个经变换的信号; 以及发送处理单元，经由第一至第H天线发送变换后的信号。

公开(公告)号：US08059726B2

公开(公告)日：2011-11-15

申请号：US12582336

申请日：2009-10-20

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。

公开(公告)号：US20100111203A1

公开(公告)日：2010-05-06

申请号：US12582336

申请日：2009-10-20

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 ,  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。

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。

公开(公告)号：US20090168915A1

公开(公告)日：2009-07-02

申请号：US12338858

申请日：2008-12-18

申请人： Tsuguhide Aoki ,  Hiroki Mori ,  Yasuhiko Tanabe

发明人： Tsuguhide Aoki ,  Hiroki Mori ,  Yasuhiko Tanabe

IPC分类号： H04B7/02

CPC分类号： H04B7/0615 ,  H04L5/0007 ,  H04L5/0044 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A radio communication apparatus includes: generation units generating first to mth signals; a storage storing allocation information defining that beams of different quality levels are allocated to first to mth communication apparatuses for each of first to nth subcarriers so that frequencies of respective quality levels are substantially uniform over all the subcarriers among the apparatuses; determining units determining transmission weights by which the signals are multiplied so that the beams according to the allocation information are formed for the apparatuses for each of the subcarriers; generation units performing multiplication processing by using the signals and the weights for each of the subcarriers to generate first to hth weighted signals for each of the subcarriers; transform units performing inverse Fourier transform on the weighted signals for each of the subcarriers to generate first to hth transformed signals; and transmission processing units transmitting the transformed signals via first to hth antennas.

摘要翻译： 无线电通信装置包括：产生第一至第m信号的发生单元; 存储分配信息，其将不同质量级别的波束分配给第一至第m通信装置，用于第一至第N个子载波中的每一个，使得各个质量等级的频率在所述装置中的所有子载波上基本均匀; 确定单元确定信号被乘以的传输权重，使得针对每个子载波的装置形成根据分配信息的波束; 生成单元通过使用每个子载波的信号和权重来执行乘法处理，以生成每个子载波的第一至第h加权信号; 变换单元对每个子载波对加权信号执行逆傅里叶变换，以产生第一至第H个经变换的信号; 以及发送处理单元，经由第一至第H天线发送变换后的信号。