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    Radio resource scheduling method, radio base station, and mobile station
    21.
    发明授权
    Radio resource scheduling method, radio base station, and mobile station 有权

    公开(公告)号：US11317426B2

    公开(公告)日：2022-04-26

    申请号：US15567638

    申请日：2016-08-08

    Applicant: NTT DOCOMO, INC.

    Inventor： Satoshi Nagata ,  Yuichi Kakishima ,  Xin Wang ,  Chongning Na ,  Xiaolin Hou ,  Huiling Jiang

    IPC: H04W72/12 ,  H04B7/0452

    Abstract: According to an aspect of the present invention, there is provided a radio resource scheduling method, wherein the method includes generating format information, wherein the format information specifies a format of resource allocation information, the format corresponding to a number of a plurality of mobile stations that simultaneously perform communication with the radio base station; generating the resource allocation information provided with the format specified by the format information corresponding to radio resources allocated to the plurality of mobile stations; and transmitting, to the plurality of mobile stations, the resource allocation information.

    WIRELESS COMMUNICATION METHOD, USER EQUIPMENT AND BASE STATION
    22.
    发明申请
    WIRELESS COMMUNICATION METHOD, USER EQUIPMENT AND BASE STATION 有权

    公开(公告)号：US20220116167A1

    公开(公告)日：2022-04-14

    申请号：US17267372

    申请日：2018-08-10

    Applicant: NTT DOCOMO, INC.

    Inventor： Jing Wang ,  Xiaolin Hou ,  Xin Wang ,  Yuki Matsumura ,  Satoshi Nagata

    IPC: H04L5/00 ,  H04B17/24 ,  H04L1/00 ,  H04B17/318

    Abstract: Embodiments of the present invention provide a wireless communication method, a user equipment and a base station. The wireless communication method performed by the user equipment includes: receiving reference signal configuration information transmitted by a base station by using at least one reference signal group, the reference signal configuration information including an identification of at least one reference signal group and measurement configuration information of at least one reference signal group; and feeding back feedback information about channel quality according to the reference signal configuration information.

    User terminal and radio communication method
    25.
    发明授权
    User terminal and radio communication method 有权

    公开(公告)号：US11201714B2

    公开(公告)日：2021-12-14

    申请号：US16650929

    申请日：2017-09-29

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Yuichi Kakishima ,  Huiling Li ,  Chongning Na ,  Lihui Wang ,  Xin Wang

    IPC: H04L5/00

    Abstract: To appropriately control UL transmission such as a CSI reporting when communication is performed by applying a different configuration from those of legacy LTE systems, one aspect of a user terminal according to the present invention includes: a transmitting section that transmits first Channel State Information (CSI) and second CSI of different information types to be reported, by using an uplink control channel and/or an uplink shared channel based on timings respectively configured by a base station; and a control section that, when transmission timings of the first CSI and the second CSI overlap, performs control to transmit both or one of the first CSI and the second CSI.

    RESOURCE ALLOCATING METHOD FOR DEMODULATION REFERENCE SIGNAL AND BASE STATION
    26.
    发明申请
    RESOURCE ALLOCATING METHOD FOR DEMODULATION REFERENCE SIGNAL AND BASE STATION 有权

    公开(公告)号：US20210184808A1

    公开(公告)日：2021-06-17

    申请号：US17257181

    申请日：2018-08-10

    Applicant: NTT DOCOMO, INC.

    Inventor： Juan Liu ,  Wenjia Liu ,  Runxin Wang ,  Xin Wang ,  Xiaolin Hou

    IPC: H04L5/00 ,  H04W72/04

    Abstract: Disclosed are a resource allocation method for demodulation reference signals and a base station. The resource allocation method for demodulation reference signals executed by the base station includes: determining an allocation method for a resource required for transmitting a plurality of demodulation reference signals and a parameter for generating the plurality of demodulation reference signals, the plurality of demodulation reference signals respectively corresponding to a plurality of user equipments, the allocation method being capable of supporting transmission of the plurality of demodulation reference signals on the same time domain resource, and the parameter being capable of making the demodulation reference signals sent with the same time frequency resource distinguished from each other; and transmitting information indicating the allocation method and information indicating the parameter to the plurality of user equipments.

    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD
    28.
    发明申请
    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20190069197A1

    公开(公告)日：2019-02-28

    申请号：US16086723

    申请日：2017-03-21

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Xiaolin Hou ,  Huiling Jiang ,  Xin Wang

    IPC: H04W28/06 ,  H04W72/04 ,  H04L5/14 ,  H04L5/00 ,  H04L1/16

    Abstract: The present invention is designed to adequately achieve the effect of latency reduction even when TDD is applied. A user terminal communicates using a radio frame including a flexible subframe whose subframe type is changeable, and has a control section that controls transmission/reception based on a first subframe type, in which a UL control channel, a DL control channel, a UL data channel and/or a DL data channel are included in one subframe, and a second subframe type, in which UL communication or DL communication is performed in one subframe, and a receiving section that receives information about a subframe type provided in each flexible subframe.

    TERMINAL AND SENDING DEVICE IN COMMUNICATION SYSTEM
    29.
    发明申请
    TERMINAL AND SENDING DEVICE IN COMMUNICATION SYSTEM 有权

    公开(公告)号：US20240421860A1

    公开(公告)日：2024-12-19

    申请号：US18707021

    申请日：2021-11-24

    Applicant: NTT DOCOMO, INC.

    Inventor： Fan Wang ,  Xin Wang ,  Xiang Li ,  Xiaolin Hou ,  Lan Chen ,  Satoshi Suyama ,  Tatsuki Okuyama

    IPC: H04B7/04 ,  H04L5/00 ,  H04W64/00

    Abstract: Provided in the present disclosure are a terminal and a sending device in a communication system. The sending device includes: a receiving unit, which is configured to receive position information of a terminal, and a control unit, which is configured to determine a first codeword in a first codebook and offset information according to the position information. The first codeword indicates initial phases of at least some array elements in a reconfigurable intelligent surface (RIS). The offset information indicates an offset relative to the at least one of the at least some array elements, the initial phases, and a reference position of the RIS.

    RECONFIGURABLE INTELLIGENT SURFACE
    30.
    发明公开
    RECONFIGURABLE INTELLIGENT SURFACE 审中-公开

    公开(公告)号：US20240283498A1

    公开(公告)日：2024-08-22

    申请号：US18567648

    申请日：2021-07-22

    Applicant: NTT DOCOMO, INC

    Inventor： Xiang Li ,  Xin Wang ,  Xiaolin Hou ,  Lan Chen ,  Satoshi Suyama

    IPC: H04B7/0456 ,  H04W16/26

    CPC classification number: H04B7/0456 ,  H04W16/26

    Abstract: The present disclosure provides a reconfigurable intelligent surface, including: a receiving unit which receives subarray division setting information sent from a base station; a reconfigurable panel; and a processing unit, which divides, based on the subarray division setting information, the reconfigurable panel into M subarrays, where M is a positive integer greater than 1, wherein, the subarray division setting information is determined based on a distance between a target device and the reconfigurable panel, N subarrays of the M subarrays serve one target device, and N is a positive integer greater than 1 and less than or equal to M.

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