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    COMPUTATION CIRCUIT, DIGITAL FILTER, TRANSMISSION DEVICE, RELAY DEVICE, SATELLITE, AND COMPUTATION METHOD
    2.
    发明公开
    COMPUTATION CIRCUIT, DIGITAL FILTER, TRANSMISSION DEVICE, RELAY DEVICE, SATELLITE, AND COMPUTATION METHOD 审中-公开

    公开(公告)号：EP3920053A1

    公开(公告)日：2021-12-08

    申请号：EP19917744.5

    申请日：2019-03-01

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： TANI, Shigenori ,  HAYAMA, Michiya

    IPC分类号： G06F17/10 ,  H04B3/04

    摘要： A digital filter (100) includes: a data conversion unit (101) that converts data into a first data sequence that is a pseudo-random number sequence; a coefficient storage unit (104) that stores a weighting coefficient that is a value weighted for each of the first data sequences; a coefficient conversion unit (105) that converts the weighting coefficient into a weighting coefficient sequence that is a pseudo-random number sequence; a plurality of first weighted addition units that generate a second data sequence obtained by weighting and adding up the first data sequences using the first data sequences and a plurality of the weighting coefficient sequences; at least one second weighted addition unit that generates a third data sequence obtained by weighting and adding up the second data sequences using the second data sequences and the weighting coefficient sequence; and a control unit (106) that selects the first data sequences to be inputted to the first weighted addition units such that operation error levels in the first weighted addition units and the second weighted addition unit become smaller than a predetermined value.

    DATA COMMUNICATION METHOD AND MOBILE COMMUNICATION SYSTEM
    5.
    发明公开
    DATA COMMUNICATION METHOD AND MOBILE COMMUNICATION SYSTEM 有权
    数据通信方法和移动通信系统

    公开(公告)号：EP2068465A1

    公开(公告)日：2009-06-10

    申请号：EP06810540.2

    申请日：2006-09-26

    申请人： Mitsubishi Electric Corporation

    发明人： MOCHIZUKI, Mitsuru ,  MAEDA, Miho ,  IWANE, Yasushi ,  FUKUI, Noriyuki ,  MISHUKU, Tetsuya ,  TAKANO, Michiaki ,  FUJIE, Ryoichi ,  TANI, Shigenori ,  OKUBO, Akira ,  OZAKI, Keisuke

    IPC分类号： H04B7/26

    CPC分类号： H04W72/005 ,  H04L5/0023 ,  H04L5/006 ,  H04W4/06 ,  H04W24/00 ,  H04W24/04 ,  H04W36/0072 ,  H04W36/18 ,  H04W48/20 ,  H04W72/12 ,  H04W88/02 ,  H04W88/08

    摘要： Since OFDM (Orthogonal Frequency Division Multiplexing), which is a downlink access scheme used for an LTE (Long Term Evolution) communication system, is weak at interference, it is preferable that the number of base stations for transmitting the same E-MBMS (Evolved Multimedia Broadcast Multicast Service) data be not excessive.
    Thus, the mobile terminal performs: processing of obtaining measurement quality values by measuring reception quality of each base station; processing of deciding on whether the measurement quality value of a serving base station exceeds a certain receiving level; processing of adding measurement quality values of other base stations to the measurement quality value of the serving base station until the sum exceeds the certain receiving level; and processing of notifying the serving base station of the serving base station and other base stations as candidates for an active set for E-MBMS. This makes it possible to select as the active set for E-MBMS an appropriate number of base stations that make it compatible to maintain good reception quality and to prevent interference.

    摘要翻译： 由于作为用于LTE（长期演进）通信系统的下行链路接入方式的OFDM（Orthogonal Frequency Division Multiplexing：正交频分复用）干扰较弱，所以优选的是用于发送相同的E-MBMS（演进的 多媒体广播多播服务）数据不会过多。 因此，移动终端执行：通过测量每个基站的接收质量来获得测量质量值的处理; 处理确定服务基站的测量质量值是否超过特定接收电平的处理; 将所述其他基站的测量质量值添加到所述服务基站的所述测量质量值直到所述总和超过所述特定接收电平为止的处理; 以及将服务基站和其他基站的服务基站通知为用于E-MBMS的活动集的候选者的处理。 这使得有可能为E-MBMS选择适当数量的基站，使其兼容以保持良好的接收质量并防止干扰。

    SCHEDULER DEVICE AND SCHEDULING METHOD
    8.
    发明公开
    SCHEDULER DEVICE AND SCHEDULING METHOD 审中-公开

    公开(公告)号：EP3567748A1

    公开(公告)日：2019-11-13

    申请号：EP17895421.0

    申请日：2017-02-06

    申请人： Mitsubishi Electric Corporation

    发明人： TSUZAKI, Shogo ,  MOTOYOSHI, Katsuyuki ,  TANI, Shigenori

    IPC分类号： H04B7/155

    摘要： A scheduler apparatus includes: a calculation unit (120) to determine, on the basis of a time required for switching from a first orbiting satellite that is an orbiting satellite to which an earth station is currently directed to a second orbiting satellite candidate that is an orbiting satellite as a candidate for a second orbiting satellite that is an orbiting satellite to which the earth station is directed next, a future expected throughput between the earth station and the first orbiting satellite, and a future expected throughput between the earth station and the second orbiting satellite candidate, the second orbiting satellite and a switching timing at which the earth station switches a directed satellite from the first orbiting satellite to the second orbiting satellite; and an interface (110) to transmit information on the second orbiting satellite and the switching timing determined by the calculation unit (120).

    SATELLITE COMMUNICATION SYSTEM, GATEWAY, SATELLITE REPEATER, COMMUNICATION NETWORK CONTROL STATION, AND SATELLITE COMMUNICATION METHOD
    10.
    发明公开
    SATELLITE COMMUNICATION SYSTEM, GATEWAY, SATELLITE REPEATER, COMMUNICATION NETWORK CONTROL STATION, AND SATELLITE COMMUNICATION METHOD 审中-公开
    卫星通信系统，网关，卫星通信，卫星通信，卫星通信，卫星通信，卫星通信

    公开(公告)号：EP3101821A1

    公开(公告)日：2016-12-07

    申请号：EP14880441.2

    申请日：2014-12-17

    申请人： Mitsubishi Electric Corporation

    发明人： TANI, Shigenori ,  MOTOYOSHI, Katsuyuki ,  SANO, Hiroyasu

    IPC分类号： H04B7/204

    CPC分类号： H04B7/18515 ,  H04B7/0695 ,  H04B7/18517 ,  H04B7/2041

    摘要： In a satellite communication system to relay communication between a terminal (502) and a gateway (505) installed on the ground through a satellite repeater (503), the satellite repeater (503) forms a user link beam for communicating with the terminal (502) and a feeder link beam for communicating with the gateway (505) in a same area, and changes frequency or polarization association with respect to each of the user link beam and the feeder link beam, based on a traffic situation. Thus, a capacity that can be communicated by the beam may be changed after satellite launching.

    摘要翻译： 在通过卫星转发器（503）在终端（502）和安装在地面上的网关（505）之间中继通信的卫星通信系统中，卫星转发器（503）形成用于与终端（502）通信的用户链路波束 ）和用于在相同区域中与网关（505）通信的馈线链路波束，并且基于交通状况改变相对于每个用户链路波束和馈线链路波束的频率或极化关联。 因此，可以在卫星发射之后改变可以通过波束传送的容量。