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    User terminal and radio communication method
    63.
    发明授权
    User terminal and radio communication method 有权

    公开(公告)号：US10609756B2

    公开(公告)日：2020-03-31

    申请号：US15546326

    申请日：2016-01-29

    Applicant: NTT DOCOMO, INC.

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

    IPC: H04L5/00 ,  H04W76/27 ,  H04W72/02 ,  H04W4/06 ,  H04W28/02 ,  H04W68/00 ,  H04W72/10 ,  H04W72/12 ,  H04W74/00

    Abstract: The present invention is designed so that a plurality of channels can be received adequately even when the bandwidth to use is limited to a narrowband which is a part of a system bandwidth. A user terminal, in which the bandwidth to use is limited to the narrowband which is a part of the system bandwidth, has a receiving section that receives a broadcast transport block and a unicast transport block, and a control section that switches the transport block to receive depending on the RRC mode of the user terminal, and, when the receiving section receives both the broadcast transport block and the unicast transport block and the user terminal is in the RRC-connected mode, the control section exerts control so that the unicast transport block is received, based on priorities that are determined in advance.

    User terminal, radio base station and radio communication method
    64.
    发明授权
    User terminal, radio base station and radio communication method 有权

    公开(公告)号：US10524238B2

    公开(公告)日：2019-12-31

    申请号：US15573310

    申请日：2016-05-13

    Applicant: NTT DOCOMO, INC.

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

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

    Abstract: According to the present invention, periodic CSI reporting that is suitable for use when the number of component carriers that can be configured per user terminal is expanded more than in existing systems can be implemented. According to the present invention, a user terminal has a transmission section that transmits channel state information periodically, and a control section that controls the transmission of the channel state information, and the control section controls the transmission of a plurality of channel state information using a PUCCH format which can use a plurality of resource blocks and/or which has a smaller spreading factor than the spreading factor of PUCCH format 3.

    METHOD OF CONSTRUCTING CODEBOOK AND USER EQUIPMENT
    66.
    发明申请
    METHOD OF CONSTRUCTING CODEBOOK AND USER EQUIPMENT 审中-公开

    公开(公告)号：US20190296814A1

    公开(公告)日：2019-09-26

    申请号：US16349494

    申请日：2017-11-13

    Applicant: DOCOMO INNOVATIONS, INC. ,  NTT DOCOMO, INC.

    Inventor： Yuichi Kakishima ,  Chongning Na ,  Huiling Li ,  Huiling Jiang ,  Satoshi Nagata

    IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0456

    Abstract: A method of constructing a codebook with multiple resolution in a wireless communication system includes constructing, with a user equipment (UE), a high resolution codebook using a low resolution codebook, and transmitting, from the UE to a base station (BS), normal Channel State Information (CSI) feedback or advanced CSI feedback based on an instruction from the BS or determination in the UE. The normal CSI feedback includes CSI generated based on the low resolution codebook. The advanced CSI feedback includes CSI generated based on the high resolution codebook. The low resolution codebook reuses beams selected based on a beam selection scheme under a Long Term Evolution (LTE) standard. The high resolution codebook is a high resolution codebook for rank 2. The high resolution codebook reuses a 1-layer codebook of a LTE standard or one of 3-layer, 5-layer, and 7-layer codebook of the LTE standard.

    Method and apparatus for controlling power
    68.
    发明授权
    Method and apparatus for controlling power 有权

    公开(公告)号：US10313987B2

    公开(公告)日：2019-06-04

    申请号：US15067598

    申请日：2016-03-11

    Applicant: NTT DoCoMo, Inc.

    Inventor： Anxin Li ,  Huiling Jiang

    IPC: H04W52/34 ,  H04W52/24 ,  H04W72/12 ,  H04W52/26 ,  H04W52/14

    Abstract: The present disclosure provides a method for controlling a power, comprising: determining an average basic transmission power of all User Equipments (UEs) in a cell in each first resource; for each first resource, determining a UE group scheduled in the first resource and a first transmission power allocation factor corresponding to the UE group according to the average basic transmission power. The present disclosure also provides an apparatus for controlling a power. According to the present disclosure, a base station determines a UE group scheduled in each subband and a transmission power for each UE in the UE group.

    USER TERMINAL AND RADIO COMMUNICATION METHOD
    70.
    发明申请
    USER TERMINAL AND RADIO COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20190150202A1

    公开(公告)日：2019-05-16

    申请号：US16300473

    申请日：2017-05-11

    Applicant: NTT DOCOMO, INC.

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

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

    Abstract: The present invention is designed to be able to suitably implement random access procedures even when LAA is used. A user terminal according to one aspect of the present invention has a control section that controls a random access procedure for a carrier where listening is performed before uplink transmission, and a receiving section that receives downlink control information for identifying a plurality of subframes that serve as PRACH transmission candidates, and a transmission section that transmits a PRACH based on the downlink control information and a listening result, and the control section controls reception of a response signal in response to transmission of the PRACH, based on an index of a subframe where the PRACH has been transmitted successfully, among the plurality of subframes that serve as the PRACH transmission candidates.

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