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    TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION
    12.
    发明公开
    TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION 审中-公开

    公开(公告)号：US20230345472A1

    公开(公告)日：2023-10-26

    申请号：US18245465

    申请日：2020-09-16

    Applicant: NTT DOCOMO, INC.

    Inventor： Yuki Takahashi ,  Satoshi Nagata ,  Jing Wang ,  Lan Chen ,  Jialin Wu ,  Yong Li

    IPC: H04W72/1268 ,  H04W72/566

    CPC classification number: H04W72/1268 ,  H04W72/566

    Abstract: A terminal according to an aspect of the present disclosure includes: a control section that, in a case where a first uplink channel and a plurality of second uplink channels having a lower priority than the first uplink channel and not overlapping in a time domain are overlapping, performs control to map at least one of uplink control information corresponding to each of the plurality of second uplink channels to the first uplink channel; and a transmitting section that uses the first uplink channel to transmit at least one of the uplink control information corresponding to each of the plurality of second uplink channels.

    Method and apparatus for downlink control information transmission
    14.
    发明授权
    Method and apparatus for downlink control information transmission 有权

    公开(公告)号：US10952237B2

    公开(公告)日：2021-03-16

    申请号：US16495382

    申请日：2018-03-07

    Applicant: NTT DOCOMO, INC.

    Inventor： Liu Liu ,  Qin Mu ,  Jing Wang ,  Lihui Wang ,  Huiling Jiang ,  Xiaohong Zhang ,  Yong Li

    IPC: H04W4/00 ,  H04W72/12 ,  H04L1/00

    Abstract: The present disclosure provides a downlink control information transmission method, including generating more than one downlink control information (DCI) according to scheduling information of a user equipment (UE); determining a detection order of the more than one DCI and positions of the more than one DCI in a searching space; adding a position indication field to a respective DCI according to the detection order of the more than one DCI and the positions of the more than one DCI in the searching space; wherein, the position indication field is used to indicate a position of a next DCI of the respective DCI in the detection order; in which, a position indication field in a last DCI in the detection order is used to indicate a position of a first DCI in the detection order; and transmitting the more than one DCI in the searching space according to the positions of the more than one DCI in the searching space. The present disclosure also provides a UE-side method, a corresponding base station and a UE.

    Radio base station, user terminal and communication control method
    15.
    发明授权
    Radio base station, user terminal and communication control method 有权

    公开(公告)号：US10470066B2

    公开(公告)日：2019-11-05

    申请号：US15024865

    申请日：2014-09-04

    Applicant: NTT DOCOMO, INC.

    Inventor： Hiroki Harada ,  Liu Liu ,  Qin Mu ,  Lan Chen ,  Lihui Wang ,  Yong Li ,  Mugen Peng ,  Wenbo Wang

    IPC: H04W24/10 ,  H04L5/00 ,  H04W72/04 ,  H04W84/04

    Abstract: The present invention is designed so that, in a radio communication system in which a plurality of component carriers (CCs) are used in each small cell within a macro cell, the load of measurements, the amount of information to report and so on in user terminals are reduced. The macro base station of the present invention transmits, to a user terminal, measurement indication information that includes a measurement indication for the received power of a measurement signal of a specific CC in each small cell, and receives, from the user terminal, a measurement report that includes the received power of the measurement signal of the specific CC. Also, the macro base station calculates the received quality of the measurement signals of the plurality of CCs based on the received power of the measurement signal of the specific CC.

    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD
    16.
    发明申请
    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20170142667A1

    公开(公告)日：2017-05-18

    申请号：US15127671

    申请日：2015-03-18

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuki Takeda ,  Hiroki Harada ,  Yuichi Kakishima ,  Tooru Uchino ,  Liu Liu ,  Huiling Jiang ,  Li Zhao ,  Yong Li ,  Mugen Peng ,  Wenbo Wang

    IPC: H04W52/36

    CPC classification number: H04W52/365 ,  H04L5/001 ,  H04W52/34

    Abstract: The present invention is designed to reduce the decrease of uplink throughput in the event a user terminal connects with a plurality of radio base stations. A user terminal (20) according to an example of the present invention provides a user terminal to connect with a plurality of radio base stations including at least a first radio base station and a second radio base station, and this user terminal has a PH report generating section (411) that calculates the PH (Power Headroom) of each radio base station and generates PH reports, and a transmission section (203) that transmits either the PUSCH (Physical Uplink Shared Channel) bandwidth of the first radio base station, a PH report per resource block, or information about the transmission power density, and a PH report for the first radio base station, to the second radio base station.

    Methods for transmitting and receiving uplink data, a user equipment and a base station
    18.
    发明授权
    Methods for transmitting and receiving uplink data, a user equipment and a base station 有权

    公开(公告)号：US11503621B2

    公开(公告)日：2022-11-15

    申请号：US16609561

    申请日：2018-03-07

    Applicant: NTT DoCoMo, Inc.

    Inventor： Qin Mu ,  Liu Liu ,  Naoto Okubo ,  Wei Xu ,  Yong Li ,  Wenbo Wang

    IPC: H04W72/12 ,  H04W72/14

    Abstract: Provided are methods for transmitting and receiving uplink data, a user equipment and a base station. The method for transmitting uplink data by a user equipment includes: transmitting to a base station a scheduling request (SR); receiving, from the base station, an uplink grant indicating scheduling information for transmitting uplink data, wherein the scheduling information is allocated by the base station according to a volume of the uplink data, the volume being determined by the SR; and transmitting to the base station the uplink data by employing the scheduling information. In this way, the present invention reduces power consumption and time delay during an uplink data transmission process.

    USER TERMINAL AND RADIO COMMUNICATION METHOD
    19.
    发明申请
    USER TERMINAL AND RADIO COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20190230635A1

    公开(公告)日：2019-07-25

    申请号：US16337297

    申请日：2017-09-29

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Lihui Wang ,  Liu Liu ,  Huiling Jiang ,  Na Li ,  Yong Li ,  Wenbo Wang

    IPC: H04W72/04 ,  H04L1/18

    Abstract: The present invention is designed so that, when special subframes are allowed to transmit a PUSCH, the transmission of the PUSCH can be controlled adequately. According to the present invention, a user terminal has a receiving section that receives downlink control information (DCI) that schedules an uplink (UL) shared channel, and a control section that controls transmission of the UL shared channel by using a table that associates a subframe, in which the DCI is received, and a timing, at which the UL shared channel is transmitted, per UL/downlink (DL) configuration. The transmission timing in the table is determined based on a special subframe, which is allowed to transmit the UL shared channel, and a predetermined reference value, which is lower than 4 ms.

    RADIO BASE STATION, USER TERMINAL AND COMMUNICATION CONTROL METHOD
    20.
    发明申请
    RADIO BASE STATION, USER TERMINAL AND COMMUNICATION CONTROL METHOD 审中-公开
    无线基站，用户终端和通信控制方法

    公开(公告)号：US20160242061A1

    公开(公告)日：2016-08-18

    申请号：US15024865

    申请日：2014-09-04

    Applicant: NTT DOCOMO, INC.

    Inventor： Hiroki Harada ,  Liu Liu ,  Qin Mu ,  Lan Chen ,  Lihui Wang ,  Yong Li ,  Mugen Peng ,  Wenbo Wang

    IPC: H04W24/10 ,  H04W72/04 ,  H04L5/00

    CPC classification number: H04W24/10 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0073 ,  H04L5/0098 ,  H04W72/0413 ,  H04W72/042 ,  H04W84/045

    Abstract: The present invention is designed so that, in a radio communication system in which a plurality of component carriers (CCs) are used in each small cell within a macro cell, the load of measurements, the amount of information to report and so on in user terminals are reduced. The macro base station of the present invention transmits, to a user terminal, measurement indication information that includes a measurement indication for the received power of a measurement signal of a specific CC in each small cell, and receives, from the user terminal, a measurement report that includes the received power of the measurement signal of the specific CC. Also, the macro base station calculates the received quality of the measurement signals of the plurality of CCs based on the received power of the measurement signal of the specific CC.

    Abstract translation: 本发明被设计为使得在其中在宏小区内的每个小小区中使用多个分量载波（CC）的无线电通信系统中，测量的负载，用户要报告的信息量等 端子减少。 本发明的宏基站向用户终端发送包含每个小小区中特定CC的测量信号的接收功率的测量指示的测量指示信息，并从用户终端接收测量 报告包括特定CC的测量信号的接收功率。 此外，宏基站基于特定CC的测量信号的接收功率来计算多个CC的测量信号的接收质量。

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