公开(公告)号：US20110207400A1

公开(公告)日：2011-08-25

申请号：US13121678

申请日：2009-09-28

申请人： Fangwei Tong

发明人： Fangwei Tong

IPC分类号： H04W24/00

CPC分类号： H04B17/3913

摘要： A channel prediction system (100) is provided with an estimation error calculator (130) which calculates an estimation error value representing the difference between a channel estimation value and a channel characteristic, and a prediction error calculator (140) for calculating a prediction error value indicating the difference between the channel prediction value calculated by a channel prediction unit (120) and a channel characteristic. The channel prediction unit (120) uses the channel prediction with priority over using the channel estimation value to calculate the channel prediction value corresponding to a future time when the estimation error value exceeds the prediction error value.

摘要翻译： 信道预测系统（100）具备计算表示信道估计值与信道特性之差的推定误差值的估计误差计算部（130），用于计算预测误差值的预测误差计算部（140） 指示由信道预测单元（120）计算的信道预测值与信道特性之间的差。 信道预测部（120）优先使用信道预测，使用信道估计值来计算与估计误差值超过预测误差值的未来时间对应的信道预测值。

公开(公告)号：US20110134989A1

公开(公告)日：2011-06-09

申请号：US13059610

申请日：2009-08-21

申请人： Fangwei Tong

发明人： Fangwei Tong

IPC分类号： H03K5/159

CPC分类号： H04B7/0848 ,  H04L25/03038 ,  H04L2025/03477 ,  H04L2025/03745 ,  H04W52/0225 ,  H04W52/028 ,  Y02D70/444

摘要： A radio base station (100) according to the present invention is equipped with a determination unit (150) that compares a first signal quality of a first output signal (y1[k]) which is output by an adaptive array antenna (110) and a second signal quality of a second output signal (y2[k]) which is output by an adaptive equalizer (120) and determines whether the improvement effect of the second signal quality with respect to the first signal quality is below expectation. When the determination unit (150) determines that the improvement effect is below expectation, a controller (160) stops power supply to the adaptive equalizer (120) and the calculation of an equalization weight (c*) by a weight calculator (140), and outputs the first output signal (y1[k]) as the output signal (Out) of a receiver (101).

摘要翻译： 根据本发明的无线电基站（100）装备有确定单元（150），其将由自适应阵列天线（110）输出的第一输出信号（y1 [k]）的第一信号质量和 由自适应均衡器（120）输出的第二输出信号（y2 [k]）的第二信号质量，并且确定第二信号质量相对于第一信号质量的改善效果是否低于期望值。 当确定单元（150）确定改进效果低于期望值时，控制器（160）停止通过权重计算器（140）向自适应均衡器（120）供电并计算均衡权重（c *）， 并输出第一输出信号（y1 [k]）作为接收器（101）的输出信号（Out）。

公开(公告)号：US20100279623A1

公开(公告)日：2010-11-04

申请号：US12679286

申请日：2008-09-25

申请人： Chiharu Yamazaki ,  Shigeru Kimura ,  Fangwei Tong

发明人： Chiharu Yamazaki ,  Shigeru Kimura ,  Fangwei Tong

IPC分类号： H04B17/00

CPC分类号： H04B17/373 ,  H04B7/0617 ,  H04B17/21 ,  H04B17/309

摘要： A wireless communication apparatus 100 according to the present invention is provided with reception channel coefficient calculation units 120-1 to 120-n for calculating reception channel coefficients of respective antennas, transmission channel coefficient calculation units 130-1 to 130-n for calculating transmission channel coefficients of respective antennas by extrapolation based on variations of the reception channel coefficients, absolute value calculation units 140-1 to 140-n for calculating absolute values of the transmission channel coefficients, a threshold calculation unit 150 for calculating a threshold based on the reception channel coefficients, comparison units 160-1 to 160-n for comparing the absolute values and the threshold, and transmission channel coefficient correction units 170-11 to 170-1n, when the absolute values are greater than the threshold, for correcting the transmission channel coefficients so as to match the absolute values to the threshold.

摘要翻译： 根据本发明的无线通信装置100设置有用于计算各天线的接收信道系数的接收信道系数计算单元120-1至120-n，用于计算传输信道的传输信道系数计算单元130-1至130-n 基于接收信道系数的变化通过外推的各个天线的系数，用于计算传输信道系数的绝对值的绝对值计算单元140-1至140-n，用于基于接收信道计算阈值的阈值计算单元150 系数，用于比较绝对值和阈值的比较单元160-1至160-n以及当绝对值大于阈值时的传输信道系数校正单元170-11至170-1n，用于校正传输信道系数 以便将绝对值与阈值相匹配。

公开(公告)号：US07593381B2

公开(公告)日：2009-09-22

申请号：US10277331

申请日：2002-10-22

申请人： Fangwei Tong ,  Masanori Kato

发明人： Fangwei Tong ,  Masanori Kato

IPC分类号： H04B7/216

CPC分类号： H04B7/0854

摘要： In a mobile communication terminal for performing wireless communication by receiving wireless signals according to CDMA communication system containing pilot signals by an antenna array containing a plurality of antenna elements (1-1 to 1-N), despreading processing is performed on received signals x1 to XN at each of the antenna array elements (1-1 to 1-N) according to a predetermined despreading code. An array response vector composed of pilot signals which are extracted by an array response vector detecting section for each of the antenna elements (1-1 to 1-N) represents the arriving direction of wireless signals. In order to form a directivity pattern of the antenna array containing antenna elements (1-1 to 1-N), a weighting operation is performed according to the array response vector. By doing this, it is possible to control the antenna array directivity pattern stably for performing wireless communication by receiving wireless signals according to a CDMA communication system.

摘要翻译： 在通过由包含多个天线元件（1-1〜1-N）的天线阵列的包含导频信号的CDMA通信系统接收无线信号进行无线通信的移动通信终端中，对接收信号x1〜 XN根据预定的解扩码在每个天线阵列元件（1-1至1-N）处。 由阵列响应矢量检测部分为每个天线元件（1-1至1-N）提取的由导频信号组成的阵列响应矢量表示无线信号的到达方向。 为了形成包含天线元件（1-1〜1-N）的天线阵列的方向性图案，根据阵列响应矢量进行加权运算。 通过这样做，可以通过根据CDMA通信系统接收无线信号来稳定地控制天线阵列方向性图来进行无线通信。

公开(公告)号：US07006042B2

公开(公告)日：2006-02-28

申请号：US10661874

申请日：2003-09-11

申请人： Fangwei Tong ,  Masanori Kato

发明人： Fangwei Tong ,  Masanori Kato

IPC分类号： H01Q3/00 ,  H04B1/69 ,  H04B7/00

CPC分类号： H04B7/0848

摘要： To realize an adaptive antenna array system which improves reception quality of desired signals by properly suppressing interference signals. The system includes: a signal detection section which detects base station signals from signals received by antenna elements; a control section which selects desired signals and interference signals to be cancelled from among the detected base station signals; a spatial signature detection section which detects spatial signatures of the desired signals and the interference signals to be cancelled; a virtual-signal generation section which generates virtual-signals for the interference signals to be cancelled using the spatial signatures thereof; an array weight generation section which generates array weights for the antenna elements by multiplying the inverse matrix of a correlation matrix of the virtual-signals by the spatial signatures of the desired signals; and a signal combining section which combines the received signals using the array weights.

摘要翻译： 实现通过适当地抑制干扰信号来提高期望信号的接收质量的自适应天线阵列系统。 该系统包括：信号检测部，其从天线元件接收的信号中检测基站信号; 控制部，从所检测的基站信号中选择要消除的所需信号和干扰信号; 空间签名检测部分，其检测所要信号的空间特征和待消除的干扰信号; 虚拟信号生成部，其使用其空间签名来生成待消除的干扰信号的虚拟信号; 阵列权重生成部，其通过将所述虚拟信号的相关矩阵的逆矩阵乘以所述期望信号的空间签名来生成所述天线元件的阵列权重; 以及组合使用阵列权重的接收信号的信号组合部分。

公开(公告)号：US08527008B2

公开(公告)日：2013-09-03

申请号：US12679286

申请日：2008-09-25

申请人： Chiharu Yamazaki ,  Shigeru Kimura ,  Fangwei Tong

发明人： Chiharu Yamazaki ,  Shigeru Kimura ,  Fangwei Tong

IPC分类号： H04M1/00 ,  H04L1/02 ,  H04W4/00

CPC分类号： H04B17/373 ,  H04B7/0617 ,  H04B17/21 ,  H04B17/309

摘要： A wireless communication apparatus 100 according to the present invention is provided with reception channel coefficient calculation units 120-1 to 120-n for calculating reception channel coefficients of respective antennas, transmission channel coefficient calculation units 130-1 to 130-n for calculating transmission channel coefficients of respective antennas by extrapolation based on variations of the reception channel coefficients, absolute value calculation units 140-1 to 140-n for calculating absolute values of the transmission channel coefficients, a threshold calculation unit 150 for calculating a threshold based on the reception channel coefficients, comparison units 160-1 to 160-n for comparing the absolute values and the threshold, and transmission channel coefficient correction units 170-11 to 170-1n, when the absolute values are greater than the threshold, for correcting the transmission channel coefficients so as to match the absolute values to the threshold.

摘要翻译： 根据本发明的无线通信装置100设置有用于计算各天线的接收信道系数的接收信道系数计算单元120-1至120-n，用于计算传输信道的传输信道系数计算单元130-1至130-n 基于接收信道系数的变化通过外推的各个天线的系数，用于计算传输信道系数的绝对值的绝对值计算单元140-1至140-n，用于基于接收信道计算阈值的阈值计算单元150 系数，用于比较绝对值和阈值的比较单元160-1至160-n以及当绝对值大于阈值时的传输信道系数校正单元170-11至170-1n，用于校正传输信道系数 以便将绝对值与阈值相匹配。

公开(公告)号：US20120039192A1

公开(公告)日：2012-02-16

申请号：US13146846

申请日：2009-01-28

申请人： Ying Peng ,  Simon Armour ,  Joe McGeehan ,  Tomoyoshi Yokota ,  Fangwei Tong

发明人： Ying Peng ,  Simon Armour ,  Joe McGeehan ,  Tomoyoshi Yokota ,  Fangwei Tong

IPC分类号： H04J1/12

CPC分类号： H04L25/022 ,  H04L25/03159 ,  H04L27/2657 ,  H04L27/2695 ,  H04L2025/03426

摘要： There is provided a first device for use in a communication system, the communication system further comprising a plurality of second devices, the system having a plurality of orthogonal frequency carriers available for transmissions, each second device having a respective carrier frequency offset estimated from signals received from the first device, each of the second devices transmitting a respective stream of symbols using the respective estimated carrier frequency offset and one or more frequency carriers selected from the plurality of orthogonal frequency carriers, the first device comprising receiver circuitry for receiving respective signals from each of the second devices; a channel estimator for generating, from the received signals, an estimate of the channel over which the signals have been transmitted; an interference estimator for generating, from the received signals, an estimate of interference at the first device caused by errors in the carrier frequency offsets estimated by each second device; and circuitry for equalising the received signals using the estimate of the channel and the estimate of the interference.

摘要翻译： 提供了一种在通信系统中使用的第一设备，所述通信系统还包括多个第二设备，所述系统具有可用于传输的多个正交频率载波，每个第二设备具有从接收到的信号估计的相应的载波频率偏移 从第一设备，每个第二设备使用相应的估计的载波频率偏移和从多个正交频率载波中选择的一个或多个频率载波来发送相应的符号流，第一设备包括接收机电路，用于从每个 的第二设备; 信道估计器，用于从所接收的信号中产生已经发送信号的信道的估计; 干扰估计器，用于从接收到的信号中产生由由每个第二设备估计的载波频率偏移中的误差引起的在第一设备处的干扰的估计; 以及用于使用信道的估计和干扰估计来均衡接收信号的电路。

公开(公告)号：US20100135223A1

公开(公告)日：2010-06-03

申请号：US12516543

申请日：2007-11-29

申请人： Fangwei Tong

发明人： Fangwei Tong

IPC分类号： H04W72/04

CPC分类号： H04W72/048 ,  H04W72/046

摘要： When wireless communications are performed with a plurality of wireless stations using a spatial division multiple access scheme, there are included a moving speed grasp step, a priority grasp step, a channel assignment order determination step, a channel assignment order adjustment step for modifying, based on the priority grasped by the priority grasp step, so that the high-priority wireless station is placed high in the channel assignment order and a channel assignment control step for controlling, for the wireless stations after the wireless station to which a channel for frequency division multiple access has been assigned based on the channel assignment order, so that at least a channel for spatial division multiple access which has been spatially divided for the last channel is assigned.

摘要翻译： 当使用空分多址方案对多个无线站进行无线通信时，包括移动速度掌握步骤，优先级抓握步骤，信道分配顺序确定步骤，用于修改的信道分配顺序调整步骤 根据优先级掌握步骤掌握的优先级，使得高优先级无线站放置在信道分配顺序的高位置，以及信道分配控制步骤，用于对于分频信道的无线站之后的无线站控制 已经基于信道分配顺序分配了多个接入，从而分配了用于最后一个信道已被空间划分的至少一个用于空分多址的信道。

公开(公告)号：US20090167311A1

公开(公告)日：2009-07-02

申请号：US11912865

申请日：2006-04-27

申请人： Fangwei Tong ,  Kenta Okino ,  Shigeru Kimura

发明人： Fangwei Tong ,  Kenta Okino ,  Shigeru Kimura

IPC分类号： H01Q3/26 ,  H04B7/04

CPC分类号： H04B7/0874 ,  H01Q3/2605

摘要： An adaptive array wireless communication apparatus able to suitably select antenna elements, small in amount of processing, fast in convergence speed, and suitable for transmission/reception, and a method of the same, which controls the directionalities of array antenna elements based on array weights, controls an antenna element selecting unit 23 so that the antenna elements are intermittently determined, and adjusts a period of determination of the antenna elements based on information of the antenna elements determined at a controlling unit 26.

摘要翻译： 一种自适应阵列无线通信装置，其能够适当地选择天线元件少，处理量小，收敛速度快，适合于发送/接收，并且其方法基于阵列权重来控制阵列天线元件的方向性 控制天线元件选择单元23，使得天线元件被间歇地确定，并且基于在控制单元26确定的天线元件的信息来调整天线元件的确定周期。

公开(公告)号：US20090016243A1

公开(公告)日：2009-01-15

申请号：US11909769

申请日：2006-03-29

申请人： Shigeru Kimura ,  Fangwei Tong

发明人： Shigeru Kimura ,  Fangwei Tong

IPC分类号： H04J3/00

CPC分类号： H04W72/1263 ,  H04W16/28 ,  H04W72/0453

摘要： A wireless communication device for transmitting/receiving data uses a plurality of carrier frequencies in a time division duplex scheme. The wireless communication device includes a scheduler for selecting a slot of at least one carrier frequency for transmission of the data; and transmission data assignment means for assigning the data to the slot of the carrier frequency selected by the scheduler and making a slot of a carrier frequency not selected by the scheduler empty.

摘要翻译： 用于发送/接收数据的无线通信设备在时分双工方案中使用多个载波频率。 无线通信装置包括：调度器，用于选择用于传输数据的至少一个载波频率的时隙; 以及发送数据分配装置，用于将数据分配给由调度器选择的载波频率的时隙，并使调度器未选择的载波频率的时隙为空。