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    • 1. 发明申请
    • RECEIVER
    • 接收器
    • US20110200089A1
    • 2011-08-18
    • US13028784
    • 2011-02-16
    • Masataka UMEDATakanori Iwamatsu
    • Masataka UMEDATakanori Iwamatsu
    • H04L27/06H04L27/01H04L1/02
    • H04B7/0854H04B7/0857H04L25/03019H04L27/2601H04L27/2647
    • A receiver receives a reception signal subjected to orthogonal frequency division multiplexing modulation or orthogonal frequency division multiple access modulation. The receiver has: an array antenna for receiving the reception signal; adaptive equalizers provided in each of the plurality of antennas, and reducing advanced or delayed waves having a delay time to a main wave in the reception signal; a spatial diversity combining portion which multiplies output signals of the adaptive equalizers by a weighting coefficient and adds the multiplied signals; a weight control portion generating the weighting coefficient; and an equalizer setting unit which estimates an arrival angle and a delay time for each path of the reception signal, and based on the estimation, decides an interference wave to be eliminated by the adaptive equalizers among interference waves, and sets in the adaptive equalizers the delay time of the decided interference wave.
    • 接收机接收经过正交频分复用调制或正交频分多址调制的接收信号。 接收器具有:用于接收接收信号的阵列天线; 设置在所述多个天线的每一个中的自适应均衡器,并且减少在所述接收信号中具有对主波的延迟时间的高级或延迟波; 空间分集组合部分,其将所述自适应均衡器的输出信号乘以加权系数,并将相乘的信号相加; 产生加权系数的加权控制部分; 以及均衡器设置单元,其估计接收信号的每个路径的到达角度和延迟时间,并且基于该估计,确定干涉波中的自适应均衡器要消除的干扰波,并且在自适应均衡器中设置 决定干扰波的延迟时间。
    • 6. 发明申请
    • SCHEDULING METHOD AND RADIO BASE STATION
    • 调度方法和无线电基站
    • US20090186621A1
    • 2009-07-23
    • US12200358
    • 2008-08-28
    • Masataka UMEDAHiromu MATSUZAWA
    • Masataka UMEDAHiromu MATSUZAWA
    • H04Q7/20H04M1/00
    • H04L1/1867H04L1/0003H04L1/0016H04L5/003H04W52/143H04W52/38H04W72/048
    • A radio base station for performing communication through three or more frequency bands based on orthogonal frequency division multiplexing includes a transmission unit configured to transmit a first channel through at least one of the three or more frequency bands and to transmit a second channel having smaller power than the first channel through at least another one of the three or more frequency bands, the first channel and the second channel being transmittable concurrently in time, a reception condition detecting unit configured to detect a reception condition of one or more mobile stations residing within a local cell, and a scheduling unit configured to select one of the first channel and the second channel, a modulation scheme, and a transmission power to be used for at least a downlink to one of the mobile stations based on the detected reception condition.
    • 一种用于基于正交频分复用来通过三个或更多个频带执行通信的无线电基站包括:发送单元,被配置为通过三个或更多个频带中的至少一个发送第一信道,并且发送具有比第 所述第一信道通过所述三个或更多个频带中的至少另一个,所述第一信道和所述第二信道在时间上同时发送;接收条件检测单元,被配置为检测驻留在本地的一个或多个移动站的接收状况 小区和调度单元,被配置为基于检测到的接收条件来选择要用于至少一个移动站的下行链路的第一信道和第二信道中的一个,调制方案和发送功率。
    • 7. 发明申请
    • RECEIVING DEVICE
    • 接收设备
    • US20110235688A1
    • 2011-09-29
    • US13046290
    • 2011-03-11
    • Masataka UMEDA
    • Masataka UMEDA
    • H04L27/28
    • H04L25/0216H04L5/0007H04L5/0048H04L25/022H04L25/0222H04L25/0232H04L27/265H04L27/2662
    • A receiving device includes: a receiver that receives frequency multiplex signal; a first Fourier transformation unit that transforms the received frequency multiplex signal to frequency domain signal; a first time-domain waveform generator that generates a first time-domain waveform by performing inverse Fourier transformation of a plurality of pilot signals which are inserted into the frequency multiplex signal; a second time-domain waveform generator that generates a second time-domain waveform having an aliasing period on the basis of the received frequency multiplex signal; a second Fourier transformation unit that synthesizes the first time-domain waveform to the second time-domain waveform and transforms the synthesized time-domain waveform to frequency-domain information; and a propagation-path compensation unit that compensates a propagation-path of the frequency multiplex signal which is output from the first Fourier transformation unit in accordance with information transformed by the second Fourier transformation unit.
    • 接收装置包括:接收频率复用信号的接收机; 第一傅立叶变换单元,将接收到的频率复用信号变换为频域信号; 第一时域波形发生器,其通过对插入到所述频率复用信号中的多个导频信号进行逆傅里叶变换来生成第一时域波形; 第二时域波形发生器,其基于接收到的频率复用信号生成具有混叠周期的第二时域波形; 第二傅立叶变换单元,将第一时域波形合成到第二时域波形,并将合成的时域波形变换为频域信息; 以及传播路径补偿单元,其根据由第二傅立叶变换单元变换的信息来补偿从第一傅里叶变换单元输出的频率复用信号的传播路径。