公开(公告)号：US09008017B2

公开(公告)日：2015-04-14

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择的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：US20130070816A1

公开(公告)日：2013-03-21

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： H04W88/08 ,  H04B1/38

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。

公开(公告)号：US20120252366A1

公开(公告)日：2012-10-04

申请号：US13495733

申请日：2012-06-13

申请人： Tsuguhide AOKI ,  Yasuhiko Tanabe

发明人： Tsuguhide AOKI ,  Yasuhiko Tanabe

IPC分类号： H04B17/00 ,  H04B15/00

CPC分类号： H04B7/0617 ,  H04B17/12

摘要： One embodiment provides a signal processor configured to cooperate with a first apparatus having first and second antennas and a second apparatus having third and fourth antennas, including: first and second calculators for calculating first and second coefficient, respectively; first and second estimators for estimating first and second transfer functions of a path between the first and second apparatuses based on first and second weights; and a third calculator for calculating a third coefficient. The third coefficient is used with the first and second transfer functions for making a transfer function ratio regarding the first antenna, a transfer function ratio regarding the second antenna, a transfer function ratio regarding the third antenna and a fourth transfer function ratio regarding the fourth antenna same as one another.

摘要翻译： 一个实施例提供一种被配置为与具有第一和第二天线的第一装置协作的信号处理器和具有第三和第四天线的第二装置，包括：分别用于计算第一和第二系数的第一和第二计算器; 第一和第二估计器，用于基于第一和第二权重来估计第一和第二设备之间的路径的第一和第二传递函数; 以及用于计算第三系数的第三计算器。 第三系数与第一和第二传递函数一起使用以产生关于第一天线的传递函数比，关于第二天线的传递函数比，关于第三天线的传递函数比和关于第四天线的第四传递函数比 相同。

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。

公开(公告)号：US20050220215A1

公开(公告)日：2005-10-06

申请号：US11078456

申请日：2005-03-14

申请人： Yasuhiko Tanabe ,  Takahiro Kobayashi ,  Kiyoshi Toshimitsu ,  Noritaka Deguchi ,  Daisuke Takeda ,  Kazuaki Kawabata

发明人： Yasuhiko Tanabe ,  Takahiro Kobayashi ,  Kiyoshi Toshimitsu ,  Noritaka Deguchi ,  Daisuke Takeda ,  Kazuaki Kawabata

IPC分类号： H04J99/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/26 ,  H04L12/28 ,  H04L27/04

CPC分类号： H04B7/0697

摘要： A radio transmitting apparatus with a plurality of transmission units comprises a calculation unit configured to calculate, based on a data length of a transmission signal including a control signal and a data signal following the control signal, a transmission time required for transmitting the transmission signal and one or more transmission times corresponding to the number of one or more divisions of the transmission signal, and a signal generation unit configured to generate a signal supplied to at least one of the transmission units, using the transmission signal corresponding to a minimum transmission time of the one or more transmission times or the divisions of the transmission signal which correspond to the minimum transmission time.

摘要翻译： 具有多个传输单元的无线电发送装置包括：计算单元，被配置为基于包括控制信号的发送信号和跟随控制信号的数据信号的数据长度计算发送发送信号所需的发送时间， 一个或多个传输时间对应于传输信号的一个或多个分区的数目;以及信号生成单元，被配置为使用对应于最小传输时间的传输信号来生成提供给至少一个传输单元的信号 传输信号的一个或多个传输时间或分区对应于最小传输时间。

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：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：US20060153062A1

公开(公告)日：2006-07-13

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： 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 使用子载波的流，在通信和接收设备之间获取信道响应的单元，单元计算奇异值λ1（k）＆lt; 2＆gt;＆lt; 2＆gt; （k）对应于子载波中的第k个子载波的信道矩阵，基于信道响应，对应于奇异值λ1的单位分配权重（＆lt; 1＆gt; 其中对于流的权重与流的对应关系通过子载波，单位乘以不同的第一和第二流， 分配权重，对应于第一和第二流中的每一个的OFDM调制信号，并获取对应的第一和第二信号 到第一和第二流，单元添加第一和第二信号以获取附加信号，对附加信号进行傅立叶逆变换单元，以及向接收装置发送从经受单元输出的信号的单元发送。

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。

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。