公开(公告)号：US20110207400A1

公开(公告)日：2011-08-25

申请号：US13121678

申请日：2009-09-28

Applicant: Fangwei Tong

Inventor： Fangwei Tong

IPC: H04W24/00

CPC classification number: H04B17/3913

Abstract: 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.

Abstract translation: 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

Applicant: Fangwei Tong

Inventor： Fangwei Tong

IPC: H03K5/159

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

Abstract: 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).

Abstract translation: 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

Applicant: Chiharu Yamazaki ,  Shigeru Kimura ,  Fangwei Tong

Inventor： Chiharu Yamazaki ,  Shigeru Kimura ,  Fangwei Tong

IPC: H04B17/00

CPC classification number: H04B17/373 ,  H04B7/0617 ,  H04B17/21 ,  H04B17/309

Abstract: 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.

Abstract translation: 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

Applicant: Fangwei Tong ,  Masanori Kato

Inventor： Fangwei Tong ,  Masanori Kato

IPC: H04B7/216

CPC classification number: H04B7/0854

Abstract: 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.

Abstract translation: 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

Applicant: Fangwei Tong ,  Masanori Kato

Inventor： Fangwei Tong ,  Masanori Kato

IPC: H01Q3/00 ,  H04B1/69 ,  H04B7/00

CPC classification number: H04B7/0848

Abstract: 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.

Abstract translation: 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：US08358724B2

公开(公告)日：2013-01-22

申请号：US13059610

申请日：2009-08-21

Applicant: Fangwei Tong

Inventor： Fangwei Tong

IPC: H04B7/10

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

Abstract: A radio base station according to the present invention is equipped with a determination unit that compares a first signal quality of a first output signal which is output by an adaptive array antenna and a second signal quality of a second output signal which is output by an adaptive equalizer 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 determines that the improvement effect is below expectation, a controller stops power supply to the adaptive equalizer and the calculation of an equalization weight by a weight calculator, and outputs the first output signal as the output signal of a receiver.

Abstract translation: 根据本发明的无线电基站装备有一个确定单元，该确定单元比较由自适应阵列天线输出的第一输出信号的第一信号质量和由自适应阵列天线输出的第二输出信号的第二信号质量 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。 当确定单元确定改进效果低于期望值时，控制器停止通过加权计算器对自适应均衡器的电力供应和均衡权重的计算，并输出第一输出信号作为接收器的输出信号。

公开(公告)号：US20120188989A1

公开(公告)日：2012-07-26

申请号：US13387708

申请日：2010-07-28

Applicant: Tomoyoshi Yokota ,  Fangwei Tong ,  Atsushi Yamamoto

Inventor： Tomoyoshi Yokota ,  Fangwei Tong ,  Atsushi Yamamoto

IPC: H04W72/08 ,  H04W24/02

CPC classification number: H04L1/0002 ,  H04L1/0016 ,  H04L1/0021 ,  H04L1/1835 ,  H04L1/1867

Abstract: In a radio communication system employing HARQ scheme wherein the maximum number of slots is changed, a radio terminal (1) which calculates a predictive transmission rate being the predictive value of a downlink transmission rate at a future time after the receiving time of a downlink radio signal is provided with a storage unit (15A) which stores in association with a DRC a corrected transmission rate obtained by causing a defined transmission rate being a downlink transmission rate in the case of using all the maximum number of slots to reflect the probability of succeeding in decoding data using only some of the slots, and a calculation unit (142) which predicts the reception quality at the future time on the basis of the reception quality before the receiving time, obtains from the storage unit (15A) the corrected transmission rate associated with the DRC corresponding to the predicted reception quality, and calculates the predictive transmission rate from the obtained corrected transmission rate.

Abstract translation: 在采用HARQ方案的无线通信系统中，其中，最大数量的时隙被改变;无线电终端（1），其计算作为下行链路无线电的接收时间之后的下一传输速率的预测值的预测传输速率 信号具有存储单元（15A），其与DRC相关联地存储在使用所有最大数量的时隙以反映后续概率的情况下通过使定义的传输速率为下行链路传输速率而获得的校正传输速率 在仅使用一些时隙的数据解码数据中，根据接收时间之前的接收质量来预测未来时间的接收质量的计算单元（142）从存储单元（15A）获得校正后的传输速率 与对应于预测接收质量的DRC相关联，并且从获得的校正tr计算预测传输速率 安排率。

公开(公告)号：US20110205940A1

公开(公告)日：2011-08-25

申请号：US13095919

申请日：2011-04-28

Applicant: Shigeru KIMURA ,  Fangwei Tong

Inventor： Shigeru KIMURA ,  Fangwei Tong

IPC: H04B7/005

CPC classification number: H04W72/1263 ,  H04W16/28 ,  H04W72/0453

Abstract: A second wireless communication device transmits a data using a plurality of carrier frequencies to a first wireless communication device which transmits by a beam with directivity. The first wireless communication device forms the beam with directivity in accordance with a wireless propagation path when receiving the data from the second wireless communication device. The second wireless communication device comprises a control unit for controlling the transmission of the data. The control unit selects at least one carrier frequency, controls the transmission of the data so as to transmit the data using the carrier frequency selected, and controls the transmission of the data so as to transmit the data using carrier frequency not selected in an immediately preceding frame when transmitting the data in a next frame.

Abstract translation: 第二无线通信设备使用多个载波频率将数据发送到由具有指向性的波束发送的第一无线通信设备。 当从第二无线通信设备接收数据时，第一无线通信设备根据无线传播路径形成具有指向性的波束。 第二无线通信设备包括用于控制数据传输的控制单元。 控制单元选择至少一个载波频率，控制数据的传输，以便使用所选择的载波频率来发送数据，并且控制数据的发送，以便使用在紧接在前的未被选择的载波频率来发送数据 在下一帧中发送数据时的帧。

公开(公告)号：US20110190031A1

公开(公告)日：2011-08-04

申请号：US12745527

申请日：2008-11-28

Applicant: Eugen Pfann ,  Fangwei Tong

Inventor： Eugen Pfann ,  Fangwei Tong

IPC: H04W88/08 ,  H04W88/02

CPC classification number: H04B7/0848

Abstract: A weight calculator (140) of a receiver (10) comprises an antenna weight processor (140A) and an equalization weight processor (140B). The antenna weight processor (140A) sets the initial values of antenna weights (w*1 to w*R) to an antenna weighting unit (115). The equalization weight processor (140B) calculates equalization weights (c*0 to c*M) by using an optimization algorithm in the state in which the initial values are held in the antenna weighting unit (115). The antenna weight processor (140A) calculates the antenna weights (w*1 to w*R) by using the optimization algorithm in the state in which the calculated equalization weights (c*0 to c*M) are held in a feed-forward unit (120A).

Abstract translation: 接收器（10）的权重计算器（140）包括天线权重处理器（140A）和均衡权重处理器（140B）。 天线加权处理器（140A）将天线权重（w * 1至w * R）的初始值设置为天线加权单元（115）。 均衡权重处理器（140B）通过在天线加权单元（115）中保持初始值的状态下使用优化算法来计算均衡权重（c * 0至c * M）。 天线权重处理器（140A）通过在所计算的均衡权重（c * 0至c * M）被保持在前馈中的状态下使用优化算法来计算天线权重（w * 1至w * R） 单元（120A）。

公开(公告)号：US08527008B2

公开(公告)日：2013-09-03

申请号：US12679286

申请日：2008-09-25

Applicant: Chiharu Yamazaki ,  Shigeru Kimura ,  Fangwei Tong

Inventor： Chiharu Yamazaki ,  Shigeru Kimura ,  Fangwei Tong

IPC: H04M1/00 ,  H04L1/02 ,  H04W4/00

CPC classification number: H04B17/373 ,  H04B7/0617 ,  H04B17/21 ,  H04B17/309

Abstract: 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.

Abstract translation: 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。