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94 条记录 (耗时 0.026 秒)

    Constellation rotation method and base station
    1.
    发明授权
    Constellation rotation method and base station 有权

    公开(公告)号：US11362879B2

    公开(公告)日：2022-06-14

    申请号：US16608728

    申请日：2018-03-20

    申请人： NTT DoCoMo, Inc.

    发明人： Neng Ye ,  Xiangming Li ,  Xiaohang Chen ,  Xiaolin Hou ,  Qun Zhao ,  Huiling Jiang

    IPC分类号： H04L27/34 ,  H04W24/08

    摘要： A constellation rotation method is presented. The method includes: determining a statistical characteristic of a received signal of a Base Station (BS) according to a channel coefficient of one or more User Equipments (UEs), at least one of noise information and interference information, the received signal being a signal received by the BS through a physical channel from the one or more UEs; determining a constellation rotation angle of each UE according to the determined statistical characteristic of the received signal; and for each UE, rotating a constellation of a data stream of a UE according to the constellation rotation angle of the UE.

    User apparatus and transmission method
    2.
    发明授权
    User apparatus and transmission method 有权

    公开(公告)号：US11190976B2

    公开(公告)日：2021-11-30

    申请号：US16626691

    申请日：2017-07-03

    申请人： NTT DOCOMO, INC.

    发明人： Shinpei Yasukawa ,  Satoshi Nagata ,  Qun Zhao

    IPC分类号： H04W28/04 ,  H04L1/08 ,  H04W92/18

    摘要： A user apparatus in a radio communication system supporting a D2D technology, includes a message generating unit configured to generate a message including a first segment and a second segment; and a message transmitting unit configured to transmit, multiple times, the message within a predetermined period, wherein information reported by a plurality of the first segments transmitted within the predetermined period by the message transmitting unit, is not changed within the predetermined period.

    User terminal and radio communication method
    3.
    发明授权
    User terminal and radio communication method 有权

    公开(公告)号：US10911982B2

    公开(公告)日：2021-02-02

    申请号：US16490268

    申请日：2017-03-02

    申请人： NTT DOCOMO, INC.

    发明人： Kazuki Takeda ,  Satoshi Nagata ,  Qun Zhao ,  Xiaohang Chen ,  Xiaolin Hou ,  Huiling Jiang

    IPC分类号： H04W28/06 ,  H04W28/04 ,  H04L1/00 ,  H04L1/18

    摘要： The present invention is designed to prevent communication performance from dropping in long TTI when preemption of long TTI by short TTI occurs. According to one aspect of the present invention, a user terminal has a receiving section that receives downlink (DL) data based on downlink control information (DCI) in a first transmission time interval (TTI), a transmission section that transmits delivery acknowledgement information in response to the DL data, and a control section that controls timing of transmitting the delivery acknowledgement information when indication information regarding preemption of the first TTI by a second TTI shorter than the first TTI is received in the receiving section.

    TERMINAL FOR D2D COMMUNICATION
    4.
    发明申请
    TERMINAL FOR D2D COMMUNICATION 有权

    公开(公告)号：US20210028896A1

    公开(公告)日：2021-01-28

    申请号：US17065870

    申请日：2020-10-08

    申请人： NTT DOCOMO, INC.

    发明人： Shimpei Yasukawa ,  Satoshi Nagata ,  Qun Zhao

    IPC分类号： H04L5/00 ,  H04W92/18 ,  H04W72/04 ,  H04W4/40 ,  H04J11/00 ,  H04W72/10

    摘要： A terminal is disclosed that includes a first transmitter configured to transmit control information for D2D by using a physical control channel for D2D multiplexed with a physical data channel for D2D in a frequency domain and a second transmitter configured to transmit data corresponding to the control information for D2D by using the physical data channel for D2D, where a plurality of the control information for D2Ds are mapped in a wireless resource unit. In other aspects, another terminal is also disclosed.

    User terminal and radio communication method
    5.
    发明授权
    User terminal and radio communication method 有权

    公开(公告)号：US10750527B2

    公开(公告)日：2020-08-18

    申请号：US16483334

    申请日：2018-02-02

    申请人： NTT DOCOMO, INC.

    发明人： Kazuki Takeda ,  Shimpei Yasukawa ,  Satoshi Nagata ,  Xiaohang Chen ,  Qun Zhao

    IPC分类号： H04W72/12 ,  H04W72/04 ,  H04W52/54

    摘要： The present invention is designed to provide a user terminal and a radio communication method, whereby adequate communication can be performed when contention-based UL transmission is employed. A user terminal according to the present invention has a transmission section that transmits UL data and a reference signal without a UL transmission command from a radio base station, and control section that controls transmission of the UL data and the reference signal, and the control section applies a reference signal that can identify the user terminal, as the reference signal, and controls transmission of the UL data and the reference signal by using predetermined resources that are configured in advance.

    USER APPARATUS AND TRANSMISSION METHOD
    6.
    发明申请
    USER APPARATUS AND TRANSMISSION METHOD 审中-公开

    公开(公告)号：US20200229029A1

    公开(公告)日：2020-07-16

    申请号：US16626691

    申请日：2017-07-03

    申请人： NTT DOCOMO, INC.

    发明人： Shinpei Yasukawa ,  Satoshi Nagata ,  Qun Zhao

    IPC分类号： H04W28/04 ,  H04L1/08

    摘要： A user apparatus in a radio communication system supporting a D2D technology, includes a message generating unit configured to generate a message including a first segment and a second segment; and a message transmitting unit configured to transmit, multiple times, the message within a predetermined period, wherein information reported by a plurality of the first segments transmitted within the predetermined period by the message transmitting unit, is not changed within the predetermined period.