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    BASE STATION, USER TERMINAL, AND COMMUNICATION CONTROL METHOD
    11.
    发明申请
    BASE STATION, USER TERMINAL, AND COMMUNICATION CONTROL METHOD 审中-公开
    基站，用户终端和通信控制方法

    公开(公告)号：US20160338134A1

    公开(公告)日：2016-11-17

    申请号：US15220429

    申请日：2016-07-27

    Applicant: KYOCERA CORPORATION

    Inventor： Yushi NAGASAKA ,  Masato FUJISHIRO ,  Naohisa MATSUMOTO ,  Kugo MORITA ,  Henry CHANG

    IPC: H04W76/02 ,  H04W36/08

    CPC classification number: H04W76/15 ,  H04W16/32 ,  H04W28/08 ,  H04W36/08 ,  H04W76/10 ,  H04W84/045 ,  H04W88/06

    Abstract: A communication control method according to a first aspect includes: starting, by a user terminal, communication according to a dual connectivity scheme, by setting a first base station as a master base station and setting a second base station as a secondary base station; and performing a procedure for changing roles of the master base station and the secondary base station, between the first base station and the second base station. The master base station is a base station that establishes an RRC connection with the user terminal in the dual connectivity scheme. The secondary base station is a base station that provides additional radio resources to the user terminal in the dual connectivity scheme.

    Abstract translation: 根据第一方面的通信控制方法包括：通过将第一基站设置为主基站并将第二基站设置为辅助基站，由用户终端根据双连接性方案进行通信; 以及执行在所述第一基站和所述第二基站之间改变所述主基站和所述辅助基站的角色的过程。 主基站是在双连接方案中与用户终端建立RRC连接的基站。 次基站是在双连接方案中向用户终端提供附加无线电资源的基站。

    MOBILE COMMUNICATION SYSTEM AND USER TERMINAL
    12.
    发明申请
    MOBILE COMMUNICATION SYSTEM AND USER TERMINAL 审中-公开
    移动通信系统和用户终端

    公开(公告)号：US20160338035A1

    公开(公告)日：2016-11-17

    申请号：US15223573

    申请日：2016-07-29

    Applicant: KYOCERA CORPORATION

    Inventor： Naohisa MATSUMOTO ,  Kugo MORITA

    IPC: H04W72/04 ,  H04W76/02

    CPC classification number: H04W72/0406 ,  H04W8/005 ,  H04W72/044 ,  H04W72/0446 ,  H04W76/14

    Abstract: A first user terminal supporting D2D (Device-to-Device) communication comprises a processor and a memory coupled to the processor. The processor is configured to perform processes of: receiving, D2D resource information from a base station, determining data radio resources and control radio resources on the basis of the D2D resource information, from among D2D radio resources available for the D2D communication, transmitting, D2D communication control information by using the determined control radio resources to a second user terminal, the D2D communication control information indicating locations of the determined data radio resources, and transmitting and retransmitting, D2D communication data by using the determined data radio resources to the second user terminal.

    Abstract translation: 支持D2D（设备到设备）通信的第一用户终端包括处理器和耦合到处理器的存储器。 处理器被配置为执行以下处理：从可用于D2D通信的D2D无线电资源中，从基站接收D2D资源信息，根据D2D资源信息确定数据无线资源并控制无线电资源，发送D2D 通过使用所确定的控制无线电资源到第二用户终端的通信控制信息，指示确定的数据无线电资源的位置的D2D通信控制信息，以及通过使用所确定的数据无线电资源向第二用户终端发送和重发D2D通信数据 。

    BASE STATION AND USER TERMINAL
    13.
    发明申请
    BASE STATION AND USER TERMINAL 审中-公开
    基站和用户终端

    公开(公告)号：US20160183320A1

    公开(公告)日：2016-06-23

    申请号：US15009343

    申请日：2016-01-28

    Applicant: KYOCERA CORPORATION

    Inventor： Naohisa MATSUMOTO ,  Hiroyuki ADACHI

    IPC: H04W76/02 ,  H04W24/08

    CPC classification number: H04W76/14 ,  H04W8/005 ,  H04W24/08 ,  H04W56/0015 ,  H04W92/18

    Abstract: A first user terminal includes: a controller configured to control transmission of a D2D (Device to Device) synchronization signal, which is directly transmitted to a second user terminal; and a receiver configured to receive, from a base station, configuration information instructing the first user terminal not to transmit the D2D synchronization signal. In response to receiving the configuration information, the controller controls the first user terminal not to transmit the D2D synchronization signal upon condition that the first user terminal has an RRC (Radio Resource Control) connection with a network.

    Abstract translation: 第一用户终端包括：被配置为控制直接发送到第二用户终端的D2D（设备到设备）同步信号的传输的控制器; 以及接收器，被配置为从基站接收指示所述第一用户终端不发送所述D2D同步信号的配置信息。 响应于接收到配置信息，控制器控制第一用户终端在第一用户终端具有与网络的RRC（无线资源控制）连接的条件下不发送D2D同步信号。

    BASE STATION, PROCESSOR, COMMUNICATION CONTROL METHOD AND USER TERMINAL
    14.
    发明申请
    BASE STATION, PROCESSOR, COMMUNICATION CONTROL METHOD AND USER TERMINAL 有权
    基站，处理器，通信控制方法和用户终端

    公开(公告)号：US20150312010A1

    公开(公告)日：2015-10-29

    申请号：US14647810

    申请日：2013-11-11

    Applicant: KYOCERA CORPORATION

    Inventor： Hiroyuki URABAYASHI ,  Naohisa MATSUMOTO

    IPC: H04L5/00 ,  H04L1/06 ,  H04W72/04

    CPC classification number: H04L5/005 ,  H04L1/0026 ,  H04L1/0035 ,  H04L1/0693 ,  H04L5/0023 ,  H04L5/0085 ,  H04W48/12 ,  H04W72/042

    Abstract: A base station that communicates with a plurality of user terminals in a mobile communication system in which a radio signal including a reference signal for estimating a channel characteristic is transmitted and received, comprises: a control unit that changes a reference signal density that is a density of the reference signal applied to communication with the plurality of user terminals. The control unit calculates a statistics amount of communication quality information acquired for all the plurality of user terminals, and changes the reference signal density on the basis of the statistics amount.

    Abstract translation: 在发送和接收包括用于估计信道特性的参考信号的无线电信号的移动通信系统中与多个用户终端进行通信的基站包括：控制单元，其改变作为密度的参考信号密度 用于与多个用户终端通信的参考信号。 控制单元计算针对所有多个用户终端获取的通信质量信息的统计量，并且基于统计量来改变参考信号密度。

    BASE STATION AND RADIO TERMINAL
    16.
    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
    20.
    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.

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