公开(公告)号：US20160316469A1

公开(公告)日：2016-10-27

申请号：US15032654

申请日：2014-10-17

Applicant: NTT DOCOMO, INC.

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

IPC: H04W72/04 ,  H04L5/14

CPC classification number: H04W72/0446 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/0055 ,  H04L5/14 ,  H04W72/0413 ,  H04W72/042

Abstract: An uplink transmission is carried out adequately even when CA is executed by employing different duplex modes between multiple cells. A user terminal communicates with an FDD cell and a TDD cell that employ carrier aggregation, receives DL signals transmitted from each cell, detects the DL signals received, makes retransmission control decisions, and allocates and feeds back delivery acknowledgement signals in response to each DL signal in a predetermined UL subframe. When aggregating and allocating delivery acknowledgement signals for the DL signal of each cell in an uplink control channel in a UL subframe of the TDD cell, a feedback mechanism makes it possible to allocate the delivery acknowledgement signals to all DL subframes of the FDD cell, and DL signals are detected assuming the number of DL subframes of the FDD cell to be allocated to a UL subframe of the TDD cell does not exceed predetermined value.

Abstract translation: 即使通过在多个小区之间采用不同的双工模式来执行CA，也能够进行上行链路传输。 用户终端与采用载波聚合的FDD小区和TDD小区通信，接收从每个小区发送的DL信号，检测接收的DL信号，进行重发控制决定，并响应于每个DL信号分配并反馈传送确认信号 在预定的UL子帧中。 当在TDD小区的UL子帧中的上行链路控制信道中，为每个小区的DL信号进行聚合和分配递送确认信号时，反馈机制使得可以将递送确认信号分配给FDD小区的所有DL子帧，并且 假设要分配给TDD小区的UL子帧的FDD小区的DL子帧的数量不超过预定值，则检测DL信号。

公开(公告)号：US20150126237A1

公开(公告)日：2015-05-07

申请号：US14384442

申请日：2013-03-11

Applicant: NTT DOCOMO, INC.

Inventor： Satoshi Nagata ,  Nobuhiko Miki ,  Mingju Li ,  Liu Liu ,  Lan Chen

IPC: H04W52/54

CPC classification number: H04W52/54 ,  H04L5/0048 ,  H04W52/143 ,  H04W52/16 ,  H04W52/226 ,  H04W52/244 ,  H04W52/325

Abstract: The present invention is designed to report transmit power information of each subframe adequately when a plurality of transmit power are set in a plurality of subframes constituting radio frames. A radio base station performs the steps of setting at least three or more kinds of varying transmit power in a plurality of subframes constituting a radio frame, and also determining a power ratio between a reference signal and a shared data channel signal in each subframe, generating bitmap information that represents a type pattern of transmit power set in the plurality of subframes, reporting the bitmap information and the power ratio to a user terminal and/or another radio base station, and generating the bitmap information with reference to a table in which the power ratio of each subframe and identifiers are associated with each other

Abstract translation: 本发明被设计为当在构成无线电帧的多个子帧中设置多个发送功率时，充分地报告每个子帧的发送功率信息。 无线基站执行在构成无线帧的多个子帧中设定至少3种以上变化的发送功率的步骤，并且在每个子帧中确定参考信号与共享数据信道信号之间的功率比，生成 表示在多个子帧中设置的发送功率的类型模式的位图信息，向用户终端和/或另一个无线基站报告位图信息和功率比，并参照其中的表格生成位图信息 每个子帧的功率比和标识符彼此相关联

公开(公告)号：US20250016678A1

公开(公告)日：2025-01-09

申请号：US18710530

申请日：2021-11-16

Applicant: NTT DOCOMO, INC.

Inventor： Liu Liu ,  Xufei Zheng ,  Jing Wang ,  Yu Jiang ,  Lan Chen

IPC: H04W52/02

Abstract: The present application provides a network energy consumption management system, including: a training unit, which is configured to acquire training data from at least one network node, and use the training data to train an energy consumption management model, so as to obtain a trained energy consumption management model; a prediction unit, which is configured to acquire input data from the at least one network node, and provide the input data for the trained energy consumption management model, so as to obtain output decision data; and an execution unit, which is configured to control the at least one network node to execute an energy conservation operation on the basis of the decision data.

公开(公告)号：US11979875B2

公开(公告)日：2024-05-07

申请号：US18046017

申请日：2022-10-12

Applicant: NTT DOCOMO, INC.

Inventor： Qin Mu ,  Liu Liu ,  Naoto Okubo ,  Wei Xu ,  Yong Li ,  Wenbo Wang

IPC: H04W72/1268 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W72/1268 ,  H04W72/21 ,  H04W72/23

Abstract: A terminal is disclosed including a transmitting unit that transmits, to a base station, a schedule request (SR); and a receiving unit that receives, from the base station, an uplink grant indicating scheduling information for transmitting uplink data, wherein the transmitting unit transmits, to the base station, the uplink data by employing the scheduling information. In other aspects, a base station and a system are also disclosed.

公开(公告)号：US11956759B2

公开(公告)日：2024-04-09

申请号：US17372922

申请日：2021-07-12

Applicant: NTT DOCOMO, INC.

Inventor： Shinpei Yasukawa ,  Satoshi Nagata ,  Qun Zhao ,  Jing Wang ,  Huan Wang ,  Liu Liu ,  Anxin Li ,  Huiling Jiang

IPC: H04W72/02 ,  H04W4/40 ,  H04W24/10 ,  H04W74/08 ,  H04W74/0816 ,  H04W92/18

CPC classification number: H04W72/02 ,  H04W24/10 ,  H04W74/0816 ,  H04W92/18 ,  H04W4/40

Abstract: A terminal is disclosed including a selection unit that selects first resource candidates for sidelink transmission based on monitoring in a sensing window, and specifies second resource candidates by excluding specific periodic resources that are reserved by another terminal from the first resource candidates; and a transmission unit that performs sidelink transmission using a resource selected from the second resource candidates. In another aspect, a transmission method executed by a terminal is also disclosed.

公开(公告)号：US11758558B2

公开(公告)日：2023-09-12

申请号：US17533756

申请日：2021-11-23

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Qin Mu ,  Liu Liu ,  Chongning Na ,  Xin Wang ,  Jing Wang ,  Lihui Wang ,  Min Liu ,  Huiling Jiang

IPC: H04W72/23 ,  H04W72/0446 ,  H04W72/53

CPC classification number: H04W72/23 ,  H04W72/0446 ,  H04W72/53

Abstract: An apparatus is disclosed including a receiver that receives a downlink control information and a downlink shared channel that is scheduled by the downlink control information; a processor that determines an allocation of the downlink shared channel in a time domain based on a first timing indicated by a first time unit and a second timing indicated by a second time unit that are obtained from information notified by the downlink control information; and an output apparatus that outputs information based on the downlink shared channel, wherein the first timing is defined based on a numerology of the downlink shared channel. In other aspects, a system is also disclosed.

公开(公告)号：US20230208603A1

公开(公告)日：2023-06-29

申请号：US17926796

申请日：2020-05-22

Applicant: NTT DOCOMO, INC.

Inventor： Jing Wang ,  Xiaolin Hou ,  Lan Chen ,  Liu Liu ,  Yong Li ,  Tong Sha ,  Hiroki Harada ,  Shinya Kumagai

IPC: H04L5/00 ,  H04B7/06 ,  H04W74/08

CPC classification number: H04L5/0073 ,  H04B7/0626 ,  H04W74/0808

Abstract: The present disclosure provides a transmitting device, a receiving device, a method for transmitting interference information, and a method for channel access. The receiving device includes a processing unit configured to perform interference measurement on an unauthorized frequency band to obtain interference information; and a transmitting unit, configured to transmit the interference information to a transmitting device.

公开(公告)号：US20230148209A1

公开(公告)日：2023-05-11

申请号：US18150467

申请日：2023-01-05

Applicant: NTT DOCOMO, INC.

Inventor： Qin Mu ,  Liu Liu ,  Wenjia Liu ,  Xiaolin Hou

IPC: H04L5/00

CPC classification number: H04L5/0048

Abstract: Provided are a wireless communication method applied to a user equipment, a wireless communication method applied to a base station, user equipment and a base station, the wireless communication method applied to the user equipment includes: jointly selecting multiplexing identification information and a reference signal for the user equipment, the multiplexing identification information being used to distinguish data of the user equipment from data of other user equipment; using the selected multiplexing identification information to perform processing on the data; and sending the processed data and the reference signal.

公开(公告)号：US11595997B2

公开(公告)日：2023-02-28

申请号：US15761874

申请日：2016-09-23

Applicant: NTT DOCOMO, INC.

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

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/04 ,  H04L1/18 ,  H04L1/1867 ,  H04L1/1812 ,  H04W72/0453

Abstract: A user terminal is disclosed, where a band to use is limited to a partial narrow band in a system band. The user terminal includes a transmitter that transmits and/or a receiver that receives a signal, and a controller that controls repetitious reception and/or repetitious transmission of a control channel in a random access procedure based on a coverage enhancement level for a random access channel. A radio base station that communicates with a user terminal is also disclosed, where a band to use is limited to a partial narrow band in a system band. The radio base station includes a transmitter that transmits and/or a receiver that receives a signal, and a controller that controls to transmit information to make the user terminal control repetitious reception and/or repetitious transmission of a control channel in a random access procedure based on a coverage enhancement level for a random access channel.

公开(公告)号：US11595883B2

公开(公告)日：2023-02-28

申请号：US16963394

申请日：2019-01-22

Applicant: NTT DOCOMO, INC.

Inventor： Jing Wang ,  Hanning Wang ,  Liu Liu

IPC: H04W4/00 ,  H04W48/16 ,  H04W16/18 ,  H04W24/02

Abstract: Provided are wireless communication methods and corresponding base stations and user terminals. The wireless communication method performed by the base station includes generating indication information indicating a support capability of the base station for user terminals of different heights and/or types; and transmitting the indication information to user terminals within a cell managed by the base station. The wireless communication method performed by the user terminal includes receiving indication information indicating a support capability of a base station for user terminals of different heights and/or types; and selecting a portion of information that matches its own height and/or type from the indication information.