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    • 5. 发明申请
    • WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION CONTROL METHOD
    • 无线通信装置和无线通信控制方法
    • US20160057698A1
    • 2016-02-25
    • US14783317
    • 2013-04-19
    • MITSUBISHI ELECTRIC CORPORATION
    • Minoru AKITAAkinori FUJIMURA
    • H04W52/02H04W72/10H04B7/208H04B7/185
    • H04W52/0203H04B7/1851H04B7/208H04W72/10Y02D70/446
    • A wireless communication apparatus reducing power consumption of a large circuit size switch unit, includes a demultiplexing unit that separates an input multiplexed signal into plural signals for each input port, a prestage rearrangement unit that rearranges the plural signals input from the demultiplexing unit and outputs plural prestage rearranged signals for each input port, a switch unit that inputs the plural prestage rearranged signals output from the prestage rearrangement unit provided for each input port as plural signals before switching and applies switching processes to the plural signals before the switching to be output as plural switched signals for each output port, a poststage rearrangement unit that inputs and rearranges the plural switched signals output from the switch unit for each output port and outputs plural poststage rearranged signals for each output port, and a multiplexing unit that multiplexes the plural poststage rearranged signals for each output port.
    • 一种降低大型电路尺寸切换单元的功耗的无线通信装置,具备将输入的多路复用信号分离为各输入端口的多个信号的解复用单元,重新排列从解复用单元输入的多个信号并输出​​多个的预排列单元 每个输入端口的预置重排信号;开关单元,其输入从为每个输入端口提供的预排列单元输出的多个预排列信号作为切换之前的多个信号,并且在切换之前对多个信号施加切换处理以被输出为多个 用于每个输出端口的开关信号,后级重排单元,其输入和重新排列从每个输出端口从开关单元输出的多个开关信号,并输出用于每个输出端口的多个后级重新排列的信号;以及复用单元,多路复用多个后级重排信号 为每个输出端口。
    • 10. 发明申请
    • Satellite communication transmission control system and small aperture terminal
    • 卫星通信传输控制系统和小孔径终端
    • US20020142718A1
    • 2002-10-03
    • US10106501
    • 2002-03-27
    • NEC CORPORATION
    • Hizuru Nawata
    • H04B007/185
    • H04B7/208H04B7/18528
    • A satellite communication transmission control system includes one central station, a plurality of small aperture terminals, and one communication satellite serving as a repeater for the central and aperture terminals. This system performs communication via a frequency division multiple access communication channel. The central station includes a modulator for transmitting via a common channel a signal for controlling/monitoring the small aperture terminals on the basis of a stable clock signal. Each aperture terminal includes a modulator, transmission frequency converter, antenna/RF device, reception frequency converter, demodulator, and frequency comparator. The modulator modulates communication information. The transmission frequency converter frequency-converts a modulated wave from the modulator into a carrier signal (modulated carrier). The reception frequency converter frequency-converts the modulated carrier. The demodulator demodulates a signal received via the common channel and outputs a reception clock. The frequency comparator detects the frequency error of a local oscillator, and generates a control signal for stopping transmission of the modulated carrier until the frequency error falls within a preset tolerance range.
    • 卫星通信传输控制系统包括一个中心站,多个小孔径终端以及用作中央和小孔终端的中继器的一个通信卫星。 该系统通过频分多址通信信道进行通信。 中心站包括一个调制器,用于经由公共通道发送一个用于根据稳定的时钟信号控制/监视小孔径终端的信号。 每个孔径终端包括调制器,传输频率转换器,天线/ RF设备,接收频率转换器,解调器和频率比较器。 调制器调制通信信息。 传输频率转换器将来自调制器的调制波频率转换为载波信号(调制载波)。 接收频率转换器对调制载波进行频率转换。 解调器解调通过公共信道接收的信号并输出​​接收时钟。 频率比较器检测本地振荡器的频率误差,并产生用于停止调制载波的传输的控制信号,直到频率误差落在预设的容差范围内。