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    USER TERMINAL AND RADIO BASE STATION
    32.
    发明申请
    USER TERMINAL AND RADIO BASE STATION 审中-公开

    公开(公告)号：US20180139020A1

    公开(公告)日：2018-05-17

    申请号：US15572817

    申请日：2016-05-13

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Lihui Wang ,  Liu Liu ,  Huiling Jiang

    IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04

    Abstract: The present invention is designed so that communication can be carries out adequately even when the number of component carriers that can be configured in a user terminal is expanded from that in existing systems. According to one aspect of the present invention, a user terminal communicates by using a plurality of component carriers (CCs), and has a data buffering section that stores uplink data, a generating section that generates a BSR MAC CE (Medium Access Control Control Element), in which a given index corresponding to a buffer size is included, based on BSR (Buffer Status Report) tables, in which amounts of uplink data that is stored (buffer sizes) and indices are associated, and a transmission section that transmits the BSR MAC CE, and one of the BSR tables is a first BSR table for use when more than five CCs are configured in the user terminal.

    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD
    33.
    发明申请
    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20180115387A1

    公开(公告)日：2018-04-26

    申请号：US15564762

    申请日：2016-04-08

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuaki Takeda ,  Liu Liu ,  Huiling Jiang ,  Qin Mu

    IPC: H04L1/00 ,  H04W72/04

    CPC classification number: H04L1/0003 ,  H04B7/02 ,  H04L1/0009 ,  H04L1/08 ,  H04L1/1896 ,  H04W72/042

    Abstract: The present invention is designed to reduce the decrease of spectral efficiency even when repetitious transmission is applied to communication by user terminals, in which the bandwidth to use is limited to partial narrow bandwidths in a system bandwidth. According to one aspect of the present invention, a user terminal, in which the bandwidth to use is limited to partial narrow bandwidths in a system bandwidth, has a receiving section that receives downlink control information (DCI), which includes information related to a repetition factor, and a control section that judges the repetition factor to apply to the transmission and/or receipt of a predetermined signal based on the information related to the repetition factor, wherein the information related to the repetition factor is selected in association with the MCS (Modulation and Coding Scheme) that is applied to the predetermined signal.

    CENTRAL CONTROL STATION, RADIO BASE STATION AND RADIO COMMUNICATION CONTROL METHOD
    36.
    发明申请
    CENTRAL CONTROL STATION, RADIO BASE STATION AND RADIO COMMUNICATION CONTROL METHOD 审中-公开
    中央控制站，无线电台站和无线电通信控制方法

    公开(公告)号：US20160269940A1

    公开(公告)日：2016-09-15

    申请号：US15032751

    申请日：2014-10-17

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuaki Takeda ,  Jing Wang ,  Liu Liu ,  Yu Jiang ,  Huiling Jiang

    IPC: H04W28/16 ,  H04W24/02 ,  H04W88/12

    CPC classification number: H04W28/16 ,  H04W24/02 ,  H04W88/02 ,  H04W88/08 ,  H04W88/12

    Abstract: The present invention is designed to reduce the decrease of system performance when coordinated multi-point transmission is carried out to a user terminal. The central control station of the present invention provides a central control station that is connected with a plurality of radio base stations that carry out coordinated multi-point transmission to a user terminal, and this central control station has a reporting information generating section that generates, for each radio base station, information about radio resources allocated to other radio base stations that carry out coordinated multi-point transmission, and a reporting section that reports the information about the radio resources, generated in the reporting information generating section, to each radio base station.

    Abstract translation: 本发明旨在减少对用户终端进行协调的多点传输时的系统性能的降低。 本发明的中央控制站提供了与向用户终端进行协调的多点传输的多个无线基站连接的中央控制站，该中央控制站具有报告信息生成部， 对于每个无线基站，分配给执行协调的多点传输的其他无线基站的无线资源的信息，以及报告单元，将报告信息生成部生成的关于无线资源的信息报告给各无线基站 站。

    RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD
    37.
    发明申请
    RADIO BASE STATION, USER TERMINAL AND RADIO COMMUNICATION METHOD 审中-公开
    无线基站，用户终端和无线电通信方法

    公开(公告)号：US20160242207A1

    公开(公告)日：2016-08-18

    申请号：US15024861

    申请日：2014-09-10

    Applicant: NTT DOCOMO, INC.

    Inventor： Shimpei Yasukawa ,  Qin Mu ,  Liu Liu ,  Lan Chen ,  Huiling Jiang

    IPC: H04W74/00 ,  H04W72/04

    CPC classification number: H04W74/002 ,  H04W28/06 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1289 ,  H04W88/02 ,  H04W88/08

    Abstract: The present invention is designed so that communication overhead pertaining to control signals is reduced in a communication system in which the bandwidth of a physical downlink shared channel is narrower than the system bandwidth. The radio base station of the present invention has a resource allocation section that allocates a physical downlink shared channel to a predetermined narrow band in a downlink system bandwidth, for a user terminal, and a downlink control information generating section that generates downlink control information to report to the user terminal, and the downlink control information generating section determines the size of a field pertaining to resource allocation information, included in downlink control information related to the physical downlink shared channel, based on the narrow band where the physical downlink shared channel is allocated.

    Abstract translation: 本发明被设计成使得在物理下行链路共享信道的带宽比系统带宽窄的通信系统中减少与控制信号有关的通信开销。 本发明的无线基站具有向下行系统带宽内的用户终端分配物理下行链路共享信道至规定的窄带的资源分配部，以及生成用于报告的下行控制信息的下行链路控制信息生成部 并且下行链路控制信息生成部基于物理下行链路共享信道被配置的窄带来决定包含在与物理下行链路共享信道有关的下行链路控制信息中的与资源分配信息有关的字段的大小 。

    Terminal, radio communication method, base station, and system
    39.
    发明授权
    Terminal, radio communication method, base station, and system 有权

    公开(公告)号：US11638168B2

    公开(公告)日：2023-04-25

    申请号：US17343902

    申请日：2021-06-10

    Applicant: NTT DOCOMO, INC.

    Inventor： Hiroki Harada ,  Satoshi Nagata ,  Jing Wang ,  Liu Liu ,  Huiling Jiang

    IPC: H04W24/10 ,  H04W16/28 ,  H04W88/02

    Abstract: A terminal is disclosed that includes a receiver that receives a measurement configuration including an information on a number of reports. The terminal also includes a processor that, when reporting of a cell-level measurement result is triggered, controls reporting of a beam-level measurement result based on the information on the number of reports, where the measurement configuration includes a maximum number of beam-level measurement result reports. In other aspects, a radio communication method, a base station, and a system are also disclosed.

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