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    • 42. 发明授权
    • Wireless communication apparatus and wireless communication method
    • 无线通信装置和无线通信方法
    • US08422960B2
    • 2013-04-16
    • US12744905
    • 2008-11-10
    • Chiharu Yamazaki
    • Chiharu Yamazaki
    • H04B17/00
    • H04B7/0617
    • A wireless communication apparatus 100 according to the present invention is provided with a transmission channel coefficient calculation unit 130-1, . . . for calculating a transmission channel coefficient in a transmission frequency band, for each of a plurality of antennas, by extrapolation based on a distribution of reception channel coefficients in a direction of frequency calculated by a reception channel coefficient calculation unit 120-1, . . . , and a transmission channel coefficient correction unit 170-11, . . . , when an absolute value of the transmission channel coefficient calculated by an absolute value calculation unit 140-1, . . . is greater than a threshold calculated by a threshold calculation unit 150 based on the reception channel coefficient as a result of a comparison by a comparison unit 160-1, . . . , for correcting the transmission channel coefficient such that the absolute value is matched with the threshold.
    • 根据本发明的无线通信装置100具有传输信道系数计算单元130-1,...。 的。 的。 用于通过基于由接收信道系数计算单元120-1计算的频率方向上的接收信道系数的分布的外推来计算多个天线中的每一个的发送频带中的传输信道系数。 的。 的。 ,以及传输信道系数校正单元170-11。 的。 的。 当由绝对值计算单元140-1计算出的传输信道系数的绝对值时。 的。 的。 作为比较单元160-1的比较结果,基于由接收信道系数计算的阈值大于由阈值计算单元150计算的阈值。 的。 的。 ,用于校正传输信道系数,使得绝对值与阈值匹配。
    • 45. 发明授权
    • Communication control method, communication system, communication control apparatus and wireless base station
    • 通信控制方法,通信系统,通信控制装置和无线基站
    • US08243691B2
    • 2012-08-14
    • US12593819
    • 2008-03-25
    • Chiharu YamazakiKugo Morita
    • Chiharu YamazakiKugo Morita
    • H04W4/00
    • H04B7/0617H04W72/046H04W72/082
    • A communication control method for a communication system stores location information indicating an interference region by neighboring wireless base stations, a first weighting factor for one wireless base station to direct its beam to the interference region, and a second weighting factor for the other wireless base station to direct its beam, correspondingly to one another in an interference table The system judges whether a terminal is located in the interference region by obtaining weighting factors adopted by each of the neighboring wireless base stations while the one wireless base station communicates with the terminal, compares the weighting factors to the first and second weighting factors stored in the interference table, and controls beam generation of the other wireless base station to prevent its interference when the terminal is located in the interference region.
    • 用于通信系统的通信控制方法存储指示相邻无线基站的干扰区域的位置信息,一个无线基站将其波束引导到干扰区域的第一加权因子,以及另一无线基站的第二加权因子 在干扰表中彼此对应地引导其波束。在一个无线基站与终端通信的同时,通过获得每个相邻无线基站采用的加权因子来判断终端是否位于干扰区域中 对存储在干扰表中的第一和第二加权因子的加权因子,并且控制另一无线基站的波束产生,以防止当终端位于干扰区域时的干扰。
    • 46. 发明授权
    • Radio communication device and radio communication method
    • 无线电通信设备和无线电通信方法
    • US08208859B2
    • 2012-06-26
    • US12442283
    • 2007-09-20
    • Chiharu YamazakiShigeru KimuraTakeshi TodaKenta Okino
    • Chiharu YamazakiShigeru KimuraTakeshi TodaKenta Okino
    • H04B1/00H04B15/00
    • H01Q3/2605H04B7/01H04B7/0608H04B7/0814
    • A radio communication device according to the present invention is a radio communication device which adaptively controls directivity of transmission radio signals by use of a plurality of element antennas on the basis of received radio signals received from a counterpart radio communication device that is a communication target radio communication device, the transmission radio signals being to be transmitted to the counterpart radio communication device, the radio communication device comprising: a propagation path state detector configured to detect a fluctuation state of a propagation path to the counterpart radio communication device on the basis of the received radio signal; and a transmission controller configured to control a phase of the transmission radio signal on the basis of the fluctuation state of the propagation path detected by the propagation path state detector.
    • 根据本发明的无线电通信装置是一种无线电通信装置,其基于从作为通信目标无线电的对方无线电通信装置接收的接收的无线电信号自适应地控制使用多个元素天线的发送无线电信号的方向性 通信装置,发送无线电信号将被发送到对方无线电通信装置,该无线电通信装置包括:传播路径状态检测器,被配置为基于该通信装置检测到对方无线电通信装置的传播路径的波动状态 接收无线电信号; 以及传输控制器,被配置为基于由传播路径状态检测器检测的传播路径的波动状态来控制传输无线电信号的相位。
    • 47. 发明申请
    • RADIO BASE STATION AND RESOURCE ALLOCATING METHOD
    • 无线基站和资源分配方法
    • US20120099467A1
    • 2012-04-26
    • US13379554
    • 2010-06-25
    • Chiharu Yamazaki
    • Chiharu Yamazaki
    • H04W72/04H04W24/00H04L12/26
    • H04W72/08H04W72/0453H04W88/08
    • A radio base station (100) comprises a processor (120) for allocating, to a radio terminal, any of a plurality of frequency resources on the basis of channel information indicating a channel quality between the radio terminal and the radio base station (100). The processor (120) periodically acquires the respective pieces of channel information of the plurality of frequency resources, then averages the acquired pieces of channel information in the frequency direction and in the time direction to calculate average channel information, and then calculates, based on the channel information and the average channel information, an evaluation value to be used for deciding a frequency resource. In a particular time frame for which the calculation of evaluation value can be omitted, the processor (120) uses the channel information of some of the plurality of frequency resources to calculate average channel information or omit the calculation of average channel information.
    • 无线基站(100)包括:处理器(120),用于根据指示无线终端与无线基站(100)之间的信道质量的信道信息向无线终端分配多个频率资源中的任一个, 。 处理器(120)周期性地获取多个频率资源的各个信道信息,然后在频率方向和时间方向上平均所获取的信道信息段,以计算平均信道信息,然后基于 频道信息和平均频道信息,用于确定频率资源的评估值。 在可以省略评估值的计算的特定时间帧中,处理器(120)使用多个频率资源中的一些的信道信息来计算平均信道信息或省略平均信道信息的计算。
    • 48. 发明申请
    • WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD
    • 无线通信设备和无线通信方法
    • US20100279623A1
    • 2010-11-04
    • US12679286
    • 2008-09-25
    • Chiharu YamazakiShigeru KimuraFangwei Tong
    • Chiharu YamazakiShigeru KimuraFangwei Tong
    • H04B17/00
    • H04B17/373H04B7/0617H04B17/21H04B17/309
    • 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.
    • 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。
    • 49. 发明申请
    • Radio Communication Device and Radio Communication Method
    • 无线电通信设备和无线电通信方法
    • US20100173592A1
    • 2010-07-08
    • US12442085
    • 2007-09-20
    • Chiharu YamazakiShigeru KimuraTakeshi TodaKenta Okino
    • Chiharu YamazakiShigeru KimuraTakeshi TodaKenta Okino
    • H04B7/005
    • H04B7/0689H04B7/0615
    • A radio communication device according to the present invention adaptively controls directivity of a transmission radio signal by using a plurality of element antennas on the basis of a received radio signal received from a communication target counterpart radio communication device. The radio communication device includes a transmission controller configured to process the transmission radio signal according to a first control method for adaptively controlling the directivity, a propagation path state detector configured to detect fluctuation state of a propagation path to a counterpart radio communication device, and a judgment unit configured to judge whether or not to change the directivity on the basis of the fluctuation state of the propagation path. If it is judged that the directivity is to be changed, the transmission controller switches to a second control method that is different from the first control method, and processes the transmission radio signal according to the second control method.
    • 根据本发明的无线电通信装置基于从通信目标对方无线电通信装置接收的接收的无线电信号,通过使用多个元素天线来自适应地控制发送无线电信号的方向性。 无线电通信装置包括:传输控制器,被配置为根据用于自适应地控制方向性的第一控制方法处理传输无线电信号;传播路径状态检测器,被配置为检测到对方无线电通信设备的传播路径的波动状态,以及 判断单元,被配置为基于传播路径的波动状态判断是否改变方向性。 如果判断方向性被改变,则传输控制器切换到与第一控制方法不同的第二控制方法,并根据第二控制方法处理传输无线电信号。