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    USER TERMINAL, BASE STATION AND RADIO COMMUNICATION METHOD
    11.
    发明申请
    USER TERMINAL, BASE STATION AND RADIO COMMUNICATION METHOD 审中-公开
    用户终端，基站和无线电通信方法

    公开(公告)号：US20160192334A1

    公开(公告)日：2016-06-30

    申请号：US14910318

    申请日：2014-07-18

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuaki Takeda ,  Hiroki Harada ,  Hiroyuki Ishii

    IPC: H04W72/04 ,  H04B17/318 ,  H04W16/32

    CPC classification number: H04W72/042 ,  H04B17/318 ,  H04W16/32 ,  H04W48/16 ,  H04W52/0206 ,  H04W72/0413 ,  H04W84/045 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/25

    Abstract: The present invention is designed to adequately control small cells (small base stations) on/off in a structure where small cells and macro cells are arranged to overlap each other. A user terminal can communicate with a macro base station that forms a macro cell and a small base station that forms a small cell arranged within the macro cell, and has a measurement section that measures the received power of a detection/measurement signal that is transmitted from the small base station in a predetermined subframe, and the total received power of downlink signals in a subframe in which no detection/measurement signal is transmitted, a calculation section that calculates received quality by using the received power and the total received power, and a transmission section that transmits information related to the received quality to the macro base station, the calculation section calculates the received quality based on the proportion of the received power and the value given by adding the received power to the total received power.

    Abstract translation: 本发明被设计为在小单元和宏单元被布置为彼此重叠的结构中适当地控制开/关的小单元（小型基站）。 用户终端可以与形成宏小区的宏基站和形成布置在宏小区内的小小区的小型基站进行通信，并且具有测量部，其测量发送的检测/测量信号的接收功率 在预定子帧中的小型基站和未发送检测/测量信号的子帧中的下行链路信号的总接收功率，通过使用接收功率和总接收功率来计算接收质量的计算部，以及 发送部，其向所述宏基站发送与所接收的质量有关的信息，所述计算部基于所述接收功率的比例和通过将所述接收功率与所述接收功率相加而给出的值来计算接收质量。

    RADIO COMMUNICATION SYSTEM AND COMMUNICATION CONTROL METHOD
    12.
    发明申请
    RADIO COMMUNICATION SYSTEM AND COMMUNICATION CONTROL METHOD 审中-公开
    无线电通信系统和通信控制方法

    公开(公告)号：US20150296495A1

    公开(公告)日：2015-10-15

    申请号：US14441531

    申请日：2013-10-04

    Applicant: NTT DOCOMO, INC.

    Inventor： Hiroto Yasuda ,  Yasufumi Morioka ,  Jinho Kim ,  Hideaki Takahashi ,  Yukihiko Okumura ,  Hiroyuki Ishii

    IPC: H04W72/04

    CPC classification number: H04W72/0406 ,  H04W16/32 ,  H04W36/06 ,  H04W76/30 ,  H04W88/08 ,  H04W88/16

    Abstract: A radio communication system includes at least one user equipment, multiple base stations including a first base station that can execute radio resource control of the user equipment, a second base station that does not execute radio resource control of the user equipment, at least one gateway apparatus, and a switching station that controls a user plane path. The switching station transmits a non-access stratum message to the user equipment through a control plane path established between the first base station and the user equipment in a case in which it is decided that the user plane path should be released, the non-access stratum message instructing the user equipment to release the user plane path.

    Abstract translation: 无线电通信系统包括至少一个用户设备，多个基站，包括可以执行用户设备的无线电资源控制的第一基站，不执行用户设备的无线电资源控制的第二基站，至少一个网关 装置和控制用户平面路径的切换站。 在确定应该释放用户平面路径的情况下，交换站通过在第一基站和用户设备之间建立的控制平面路径向用户设备发送非接入层消息，非接入层 层次消息指示用户设备释放用户平面路径。

    MOBILE COMMUNICATION METHOD AND MOBILE STATION
    13.
    发明申请
    MOBILE COMMUNICATION METHOD AND MOBILE STATION 有权
    移动通信方法和移动站

    公开(公告)号：US20150208393A1

    公开(公告)日：2015-07-23

    申请号：US14420907

    申请日：2013-08-19

    Applicant: NTT DOCOMO, INC

    Inventor： Tooru Uchino ,  Sadayuki Abeta ,  Hiroyuki Ishii

    IPC: H04W72/04

    CPC classification number: H04W72/042 ,  H04L61/2038 ,  H04L61/2046 ,  H04L61/6022 ,  H04W8/26 ,  H04W16/32 ,  H04W74/0833 ,  H04W76/11

    Abstract: A mobile communication method includes the steps of transmitting a first control signal including an identifier different from a C-RNTI to the mobile station UE#A through a PDCCH by a radio base station PhNB#10 managing a cell #10 formed by linking multiple small cells, transmitting a second control signal including an identifier to the mobile station UE through a PDCCH by a radio base station eNB#1 managing a cell #1 having a coverage area overlapping with a coverage area of the cell #10, and regarding the first control signal as valid by the mobile station UE#A, when it determines that the identifier included in the first control signal and the identifier included in the second control signal match each other.

    Abstract translation: 一种移动通信方法包括以下步骤：通过PDCCH管理包含不同于C-RNTI的标识符的第一控制信号，通过PDCCH通过无线基站PhNB＃10来管理通过链接多个小型 小区，通过管理具有与小区＃10的覆盖区域重叠的覆盖区域的小区＃1的无线基站eNB＃1，通过PDCCH向移动台UE发送包括标识符的第二控制信号，以及关于第一 控制信号由移动台UE＃A确定为包含在第一控制信号中的标识符和包含在第二控制信号中的标识符彼此匹配时。

    RADIO COMMUNICATION SYSTEM
    15.
    发明申请
    RADIO COMMUNICATION SYSTEM 有权
    无线电通信系统

    公开(公告)号：US20150156802A1

    公开(公告)日：2015-06-04

    申请号：US14408818

    申请日：2013-05-15

    Applicant: NTT DOCOMO, INC.

    Inventor： Yasufumi Morioka ,  Hiroto Yasuda ,  Jinho Kim ,  Hideaki Takahashi ,  Junichiro Hagiwara ,  Hiroyuki Ishii

    IPC: H04W76/02 ,  H04W40/02

    CPC classification number: H04W76/10 ,  H04W24/10 ,  H04W36/0083 ,  H04W40/02 ,  H04W76/22 ,  H04W88/085

    Abstract: The radio communication system has a user equipment, a first base station, a second base station, a serving gateway, and a switching station. The first base station has a control-plane path set to the switching station. The second base station has no control-plane path to the switching station. A path setting determiner determines whether to set a user-plane path, based on measurement information reported from the user equipment. A base station determiner determines, based on identification information obtained by the user equipment, whether a base station to which the user-plane path is to be set is the second base station, the base station corresponding to the obtained identification information.

    Abstract translation: 无线电通信系统具有用户设备，第一基站，第二基站，服务网关和交换站。 第一基站具有设置到交换站的控制平面路径。 第二基站没有到交换台的控制平面路径。 路径设置确定器基于从用户设备报告的测量信息来确定是否设置用户平面路径。 基站确定器基于用户设备获得的识别信息，确定要设置用户平面路径的基站是否是第二基站，对应于所获得的识别信息的基站。

    RADIO COMMUNICATION SYSTEM
    16.
    发明申请
    RADIO COMMUNICATION SYSTEM 有权
    无线电通信系统

    公开(公告)号：US20150146688A1

    公开(公告)日：2015-05-28

    申请号：US14400765

    申请日：2013-06-13

    Applicant: NTT DOCOMO, INC.

    Inventor： Hiroto Yasuda ,  Yasufumi Morioka ,  Jinho Kim ,  Hideaki Takahashi ,  Junichiro Hagiwara ,  Hiroyuki Ishii

    IPC: H04W36/00 ,  H04W76/02

    CPC classification number: H04W36/0005 ,  H04W36/0055

    Abstract: A radio communication system includes a user device, a first base station, a second base station, a switching center, and a gateway device. In a handover operation performed in a situation in which a user-plane path has been established through the first base station, the first base station transmits, to the user device, a radio connection reconfiguration message commanding that a radio bearer be established between the second base station and the user device and receives a radio connection reconfiguration complete message transmitted from the user device. The first base station transmits, to the switching center, a path switching request message requesting that the established user-plane path be changed so as to pass through the second base station.

    Abstract translation: 无线电通信系统包括用户设备，第一基站，第二基站，交换中心和网关设备。 在通过第一基站建立用户平面路径的情况下执行的切换操作中，第一基站向用户装置发送无线连接重配置消息，该消息指示在第二基站之间建立无线承载 基站和用户设备，并且接收从用户设备发送的无线电连接重配置完成消息。 第一基站向交换中心发送请求改变所建立的用户平面路径以便通过第二基站的路径切换请求消息。

    MOBILE COMMUNICATION SYSTEM
    17.
    发明申请
    MOBILE COMMUNICATION SYSTEM 有权
    移动通信系统

    公开(公告)号：US20150011217A1

    公开(公告)日：2015-01-08

    申请号：US14375274

    申请日：2013-01-30

    Applicant: NTT DOCOMO, INC.

    Inventor： Hideaki Takahashi ,  Kazuaki Takeda ,  Takeshi Nakamori ,  Hiroyuki Ishii

    IPC: H04W36/30 ,  H04W36/16

    CPC classification number: H04W36/30 ,  H04L5/001 ,  H04W16/32 ,  H04W36/0094 ,  H04W36/165

    Abstract: Appropriate performance is required for “Inter-Frequency Measurement” in accordance with the conditions of a cell to be subjected to “Inter-Frequency Measurement”. A mobile communication system according to the present invention is configured to separately specify the performance required for “Inter-Frequency Measurement” to be used in “Inter-frequency Handover” control between macrocells #11 and #12 and the performance required for “Inter-frequency Handover” to the cell #11B which is not set as an Scell within the coverage area of the macrocell #11.

    Abstract translation: 根据要进行“频率间测量”的单元的条件，进行“频率间测量”需要适当的性能。 根据本发明的移动通信系统被配置为分别指定要在宏单元＃11和＃12之间的“频间切换”控制中使用的“同频测量”所需的性能和“间频测量”所需的性能， 频率切换“到在宏小区＃11的覆盖区域内未设置为Scell的小区＃11B。

    TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION
    20.
    发明申请
    TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION 审中-公开

    公开(公告)号：US20200187104A1

    公开(公告)日：2020-06-11

    申请号：US16793579

    申请日：2020-02-18

    Applicant: NTT DOCOMO, INC.

    Inventor： Hiroki Harada ,  Kazuaki Takeda ,  Satoshi Nagata ,  Hiroyuki Ishii

    IPC: H04W48/16 ,  H04J11/00 ,  H04W48/12 ,  H04W24/10

    Abstract: A terminal is disclosed that includes a receiver that receives, in a first cell, information indicating a measurement object including information regarding a parameter of a discovery or measurement signal. The terminal also includes a processor that performs a measurement using the discovery or measurement signal based on the information indicating the measurement object and a transmitter that transmits a result of the measurement, where when the information indicating the measurement object designates a timing that is synchronous with the first cell, the processor performs the measurement in a second cell based on the timing that is synchronous with the first cell. In other aspects, a radio communication method and a base station are also disclosed.

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