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    BASE STATION AND RADIO TERMINAL
    22.
    发明申请
    BASE STATION AND RADIO TERMINAL 审中-公开

    公开(公告)号：US20180234855A1

    公开(公告)日：2018-08-16

    申请号：US15751090

    申请日：2016-08-05

    Applicant: KYOCERA CORPORATION

    Inventor： Naohisa MATSUMOTO ,  Hiroyuki URABAYASHI ,  Kugo MORITA ,  Hiroyuki ADACHI

    IPC: H04W16/14 ,  H04W74/08 ,  H04W74/00

    Abstract: A base station (eNB 200-1) operated in a specific frequency band shared by a plurality of operators or a plurality of communication systems transmits, to another base station (eNB 200-2) operated in the specific frequency band, transmission request information requesting transmission of a predetermined signal for stopping transmission of an interference signal by an interference source (UE 100-2) causing interference to a radio terminal (UE 100-1) connected to the base station.

    BASE STATION
    25.
    发明申请
    BASE STATION 审中-公开

    公开(公告)号：US20170325100A1

    公开(公告)日：2017-11-09

    申请号：US15660676

    申请日：2017-07-26

    Applicant: KYOCERA CORPORATION

    Inventor： Hiroyuki URABAYASHI ,  Kugo MORITA ,  Noriyoshi FUKUTA ,  Naohisa MATSUMOTO

    IPC: H04W16/14 ,  H04W48/16 ,  H04W72/04

    CPC classification number: H04W16/14 ,  H04W48/16 ,  H04W72/0413

    Abstract: A base station according to an embodiment has a first cell in a licensed band and a second cell in an unlicensed band. The base station comprises: controller configured to execute control to transmit a discovery reference signal in the second cell. The controller executes: control to confirm whether or not there is an available channel in the unlicensed band, before transmitting the discovery reference signal; and control to transmit the discovery reference signal in the available channel in the unlicensed band. The discovery reference signal includes a cell-specific reference signal, a primary synchronization signal, a secondary synchronization signal, and a channel-state-information reference signal.

    RADIO BASE STATION AND USER TERMINAL
    26.
    发明申请
    RADIO BASE STATION AND USER TERMINAL 审中-公开

    公开(公告)号：US20170238320A1

    公开(公告)日：2017-08-17

    申请号：US15582986

    申请日：2017-05-01

    Applicant: KYOCERA CORPORATION

    Inventor： Noriyoshi FUKUTA ,  Naohisa MATSUMOTO ,  Hiroyuki URABAYASHI ,  Henry CHANG

    IPC: H04W72/04 ,  H04W72/08 ,  H04L5/00

    CPC classification number: H04W72/0453 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/006 ,  H04W16/14 ,  H04W72/04 ,  H04W72/082

    Abstract: A radio base station according to an embodiment is a radio base station configured to use a specific frequency band which includes a plurality of component carriers having a predetermined bandwidth and which is allowed to be utilized by a plurality of network operators or a plurality of communication systems. The radio base station comprises: a controller configured to select, from among the plurality of component carriers, a target component carrier in which a reference signal used in the specific frequency band should be transmitted; and a transmitter configured to use the target component carrier to transmit the reference signal. The controller selects, as the target component carrier, a first component carrier that satisfies a first condition. The first condition is that an interference power amount falls below a predetermined threshold value.

    COMMUNICATION CONTROL METHOD, BASE STATION, AND USER TERMINAL
    27.
    发明申请
    COMMUNICATION CONTROL METHOD, BASE STATION, AND USER TERMINAL 审中-公开
    通信控制方法，基站和用户终端

    公开(公告)号：US20170019892A1

    公开(公告)日：2017-01-19

    申请号：US15281685

    申请日：2016-09-30

    Applicant: KYOCERA CORPORATION

    Inventor： Katsuhiro MITSUI ,  Hiroyuki URABAYASHI ,  Kugo MORITA

    IPC: H04W72/04 ,  H04W52/02 ,  H04W24/10

    CPC classification number: H04W72/0406 ,  H04L5/001 ,  H04L5/005 ,  H04L5/006 ,  H04L5/0073 ,  H04L5/0098 ,  H04W16/02 ,  H04W16/32 ,  H04W24/02 ,  H04W24/10 ,  H04W52/0206 ,  H04W72/042 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/164

    Abstract: A communication control method comprising: setting at least part of downlink radio resources available in a first cell to a first resource at a first base station, wherein the first base station is configured to manage the first cell connected to a user terminal and restricts transmission in the first resource; sending information from the first base station to the user terminal, wherein the information indicates the first resource; performing measurement of received power and/or reception quality of a reference signal at the user terminal, wherein a second cell transmits the reference signal with using the first resource; transmitting a measurement report from the user terminal to the first base station, wherein the measurement report includes a result of the measurement; and determining whether or not the first cell is settable to a switch off mode, on the basis of the measurement report, at the first base station, wherein the switch off mode includes stopping the first cell from transmitting a signal.

    Abstract translation: 一种通信控制方法，包括：将第一小区中可用的下行链路无线电资源的至少一部分设置到第一基站处的第一资源，其中，所述第一基站被配置为管理连接到用户终端的第一小区， 第一资源; 将信息从第一基站发送到用户终端，其中信息指示第一资源; 在所述用户终端处执行对参考信号的接收功率和/或接收质量的测量，其中第二小区利用所述第一资源发送所述参考信号; 从所述用户终端向所述第一基站发送测量报告，其中所述测量报告包括所述测量结果; 以及基于所述测量报告，在所述第一基站处确定所述第一小区是否可设置为关闭模式，其中所述关闭模式包括停止所述第一小区发送信号。

    MOBILE COMMUNICATION SYSTEM, BASE STATION, AND USER TERMINAL
    28.
    发明申请
    MOBILE COMMUNICATION SYSTEM, BASE STATION, AND USER TERMINAL 有权
    移动通信系统，基站和用户终端

    公开(公告)号：US20160373901A1

    公开(公告)日：2016-12-22

    申请号：US15252649

    申请日：2016-08-31

    Applicant: KYOCERA CORPORATION

    Inventor： Hiroyuki URABAYASHI ,  Noriyoshi FUKUTA

    IPC: H04W4/06 ,  H04W72/04 ,  H04W76/04

    CPC classification number: H04W76/28 ,  H04W4/06 ,  H04W8/26 ,  H04W48/12 ,  H04W72/005 ,  H04W72/042 ,  H04W72/1289 ,  H04W76/40 ,  H04W88/02 ,  H04W88/12

    Abstract: A user terminal according to one aspect executes a first and second DRX operations. The first DRX operation is an operation of discontinuously monitoring first control information, which is transmitted from the base station via PDCCH, using a C-RNTI that uniquely identifies the user terminal in a cell of the base station. The second DRX operation is an operation of discontinuously monitoring second control information, which is transmitted from the base station via the PDCCH, using a group RNTI assigned to a terminal group including the user terminal. The user terminal monitors the first control information in a first ON duration for the first DRX operation, and monitors the second control information in a second ON duration for the second DRX operation, the second ON duration being independent of the first ON duration.

    Abstract translation: 根据一个方面的用户终端执行第一和第二DRX操作。 第一DRX操作是使用唯一地识别基站的小区中的用户终端的C-RNTI来不连续地监视从基站经由PDCCH发送的第一控制信息的操作。 第二DRX操作是使用分配给包括用户终端的终端组的组RNTI来不连续地监视从基站经由PDCCH发送的第二控制信息的操作。 用户终端在第一DRX操作的第一ON持续时间内监视第一控制信息，并且在第二DRX操作的第二ON持续时间中监视第二控制信息，第二ON持续时间独立于第一ON持续时间。

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