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    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD
    4.
    发明申请
    USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20200213040A1

    公开(公告)日：2020-07-02

    申请号：US15751620

    申请日：2016-08-08

    Applicant: NTT DOCOMO, INC.

    Inventor： Kazuaki Takeda ,  Liu Liu ,  Huiling Jiang ,  Qin Mu ,  Zhen Liao ,  Yong Li ,  Wenbo Wang

    IPC: H04L1/18 ,  H04W74/08 ,  H04L1/00 ,  H04W4/70

    Abstract: In order that a user can perform a random access procedure suitable for a case where a usage band is limited to a frequency block that is a part of a system band, a user terminal according to one aspect of the present invention is a user terminal with a usage band limited to a frequency block that is a part of a system band, including a transmission section that transmits a random access signal with repetition, a reception section that receives a response signal to the random access signal with repetition, and a control section that detects a repetition number of the response signal, in which the reception section receives information for detection of the repetition number of the response signal and the control section detects the repetition number of the response signal based on a repetition level of the random access signal and the information for detection.

    User terminal, radio base station and radio communication method
    8.
    发明授权
    User terminal, radio base station and radio communication method 有权

    公开(公告)号：US11350373B2

    公开(公告)日：2022-05-31

    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 ,  H04L5/00 ,  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.

    MOBILE COMMUNICATION METHOD
    9.
    发明申请
    MOBILE COMMUNICATION METHOD 有权
    移动通信方法

    公开(公告)号：US20160205602A1

    公开(公告)日：2016-07-14

    申请号：US14913042

    申请日：2014-08-15

    Applicant: NTT DOCOMO, INC.

    Inventor： Tooru Uchino ,  Yoshihisa Kishiyama ,  Lan Chen ,  Liu Liu ,  Lihui Wang ,  Yong Li ,  Wenbo Wang

    IPC: H04W36/04 ,  H04W16/32 ,  H04W74/08 ,  H04W36/08 ,  H04W24/10

    CPC classification number: H04W16/32 ,  H04W24/10 ,  H04W36/02 ,  H04W36/04 ,  H04W36/08 ,  H04W36/28 ,  H04W74/0833 ,  H04W76/15 ,  H04W84/047

    Abstract: In switching a radio base station (SeNB) from a radio base station (SeNB#1) to a radio base station (SeNB#2) in an “Inter-node UP aggregation”, forwarding of new downlink data destined for a mobile station (UE) from a radio base station (MeNB) to the radio base station (SeNB#2) is quickly started. A mobile communication method according to the present invention includes: sending, by the mobile station UE, the radio base station (MeNB) a “New data delivery request” that requests forwarding of new downlink data destined for the mobile station (UE) to the radio base station (SeNB#2) , in response to an “SeNB change command”; and forwarding, by the radio base station MeNB, the new downlink data destined for the mobile station (UE) to the radio base station (SeNB#2) , in response to the “New data delivery request”.

    Abstract translation: 在“节点间UP聚合”中，从无线基站（SeNB＃1）向无线基站（SeNB＃2）切换无线基站（SeNB）时，转发去往移动台的新的下行链路数据 UE）从无线基站（MeNB）到无线基站（SeNB＃2）。 根据本发明的移动通信方法包括：由移动台UE向无线基站（MeNB）发送请求向目的地为移动台（UE）发送的新的下行链路数据的转发的“新的数据发送请求” 无线基站（SeNB＃2），响应“SeNB变更指令”; 以及响应于“新数据传送请求”，由无线基站MeNB向目的地为移动台（UE）的新的下行链路数据转发给无线基站（SeNB＃2）。

    BASE STATION AND COMMUNICATION METHOD
    10.
    发明申请
    BASE STATION AND COMMUNICATION METHOD 有权

    公开(公告)号：US20250142521A1

    公开(公告)日：2025-05-01

    申请号：US18837801

    申请日：2022-02-21

    Applicant: NTT DOCOMO, INC.

    Inventor： Shohei Yoshioka ,  Satoshi Nagata ,  Luhua You ,  Weiqi Sun ,  Jing Wang ,  Lan Chen ,  Jinming Zhao ,  Yong Li

    IPC: H04W64/00 ,  H04L5/00 ,  H04W56/00 ,  H04W84/06

    Abstract: A base station in a network system includes: a transmission unit configured to transmit a first reference signal to a terminal via a first non-terrestrial communication device; and a reception unit configured to receive information related to a reception timing at the terminal from the terminal. The transmission unit transmits information related to a propagation delay of the first reference signal and information related to the reception timing to LMF (Location Management Function), and the information related to the reception timing is a time difference between a reception timing of the first reference signal and a reception timing of a second reference signal that is transmitted from the base station or from a second base station that is different from the base station via a second non-terrestrial communication device.

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