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    FREQUENCY-SHARING RADIO COMMUNICATION SYSTEM AND SATELLITE TERMINAL
    2.
    发明申请
    FREQUENCY-SHARING RADIO COMMUNICATION SYSTEM AND SATELLITE TERMINAL 审中-公开

    公开(公告)号：US20180183511A1

    公开(公告)日：2018-06-28

    申请号：US15129286

    申请日：2015-01-21

    申请人： Mitsubishi Electric Corporation

    发明人： Masao OGA ,  KEIJIRO TAKE

    IPC分类号： H04B7/185 ,  H04B7/155 ,  H04W16/14

    CPC分类号： H04B7/18513 ,  H04B7/155 ,  H04B7/208 ,  H04W16/14 ,  H04W48/02 ,  H04W88/08

    摘要： A frequency-sharing radio communication system that includes a terrestrial radio communication system and a satellite communication system and in which a frequency band of a radio wave used by a terrestrial base station and a radio terminal of the terrestrial radio communication system overlaps with a frequency band of a beam radiated from a satellite of the satellite communication system, includes: a monitoring device that stores management information that associates a frequency used by the terrestrial base station, the usage state of the frequency, and a frequency of the beam radiated to an area where the terrestrial base station is located; and a managing device that selects, based on the management information, the terrestrial base station that shares a frequency with the beam and is located within an irradiation range of the beam, and instructs the selected terrestrial base station to stop using the shared frequency.

    WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION CONTROL METHOD
    5.
    发明申请
    WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION CONTROL METHOD 有权
    无线通信装置和无线通信控制方法

    公开(公告)号：US20160057698A1

    公开(公告)日：2016-02-25

    申请号：US14783317

    申请日：2013-04-19

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： Minoru AKITA ,  Akinori FUJIMURA

    IPC分类号： H04W52/02 ,  H04W72/10 ,  H04B7/208 ,  H04B7/185

    CPC分类号： H04W52/0203 ,  H04B7/1851 ,  H04B7/208 ,  H04W72/10 ,  Y02D70/446

    摘要： 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.

    摘要翻译： 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。

    Method and arrangement in wireless communication networks using relaying
    8.
    发明授权
    Method and arrangement in wireless communication networks using relaying 有权
    使用中继的无线通信网络中的方法和布置

    公开(公告)号：US08081721B2

    公开(公告)日：2011-12-20

    申请号：US11730003

    申请日：2007-03-29

    申请人： Afif Osseiran ,  Andrew Logothetis

    发明人： Afif Osseiran ,  Andrew Logothetis

    IPC分类号： H04B7/10

    CPC分类号： H04B7/208 ,  H04B7/026 ,  H04L5/0023 ,  H04L27/2607 ,  H04L27/2628 ,  H04L27/265

    摘要： A wireless communication system uses relaying to enhance performance. Artificial frequency selectivity and spatial diversity are provided by introducing delay diversity. A transformed OFDM chunk is subjected to a 2D cyclic prefix by pre-appending to a representation of the chunk the last column of the representation and by copying a number of the last rows of the pre-appended chunk to the top of the representation thereby forming an augmented OFDM chunk.

    摘要翻译： 无线通信系统使用中继来提高性能。 通过引入延迟分集来提供人工频率选择性和空间分集。 通过预先附加到组块表示的最后一列并通过将预先附加的组块的最后一行的数目复制到表示的顶部，将变换的OFDM组块经受2D循环前缀，从而形成 增强的OFDM块。

    Frequency and timing synchronization and error correction in a satellite network
    9.
    发明申请
    Frequency and timing synchronization and error correction in a satellite network 有权
    卫星网络中的频率和定时同步和纠错

    公开(公告)号：US20040234018A1

    公开(公告)日：2004-11-25

    申请号：US10851345

    申请日：2004-05-24

    申请人： GILAT SATELLITE NETWORKS, LTD.

    发明人： Uzi Ram ,  Arik Keshet ,  Daniel Keschet

    IPC分类号： H04K001/00

    CPC分类号： H04B7/208 ,  H04B7/18528 ,  H04B7/2125

    摘要： An outgoing transmission carrier frequency at, for example, a remote terminal, may be adjusted based on a feature rate of an incoming transmission. The adjustment may compensate for error in the outgoing transmission carrier frequency. The incoming transmission may be from a satellite or hub, for example. The outgoing transmission may be the signal that is transmitted by an antenna, or the outgoing transmission may be converted to be at another carrier frequency such as a higher carrier frequency for ultimate transmission by an antenna. Also, a remote terminal may be synchronized to a satellite network with or without knowledge of the remote terminals' geographical location and with or without time stamps.

    摘要翻译： 可以基于进入的传输的特征速率来调整例如远程终端的传出载波频率。 该调整可以补偿输出传输载波频率中的误差。 例如，进入的传输可以来自卫星或集线器。 输出传输可以是由天线发送的信号，或者输出传输可以被转换为处于另一载波频率，例如较高的载波频率，以由天线最终传输。 此外，远程终端可以在有或没有远程终端的地理位置的知识的情况下与卫星网络同步，并且具有或没有时间戳。

    Satellite communication transmission control system and small aperture terminal
    10.
    发明申请
    Satellite communication transmission control system and small aperture terminal 失效
    卫星通信传输控制系统和小孔径终端

    公开(公告)号：US20020142718A1

    公开(公告)日：2002-10-03

    申请号：US10106501

    申请日：2002-03-27

    申请人： NEC CORPORATION

    发明人： Hizuru Nawata

    IPC分类号： H04B007/185

    CPC分类号： H04B7/208 ,  H04B7/18528

    摘要： 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.

    摘要翻译： 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。