公开(公告)号：US20160374079A1

公开(公告)日：2016-12-22

申请号：US15110955

申请日：2014-12-24

Applicant: NTT DOCOMO, INC.

Inventor： Shimpei Yasukawa ,  Kazuki Takeda ,  Satoshi Nagata

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/14

CPC classification number: H04W72/0446 ,  H04B7/2615 ,  H04L5/001 ,  H04L5/0092 ,  H04L5/0094 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/1289 ,  H04W74/006 ,  H04W74/0833 ,  H04W76/00

Abstract: The present invention is designed to implement dynamic TDD that does not rely on TDD-FDD CA-based TDD UL-DL configurations. A user terminal executes radio communication with a plurality of cells by employing carrier aggregation, and has a receiving section that, when a connection is established with a secondary cell serving as a dynamic TDD cell, receives control information, which is transmitted from a primary cell and which includes a dynamic command with respect to a subframe configuration of the dynamic TDD cell, and a transmission timing of an uplink signal, and a control section that decides whether or not one or a plurality of subframes in the dynamic TDD cell are uplink subframes or downlink subframes based on the control information, and, furthermore, controls the transmission timing of the uplink signal based on the transmission timing.

Abstract translation: 本发明被设计为实现不依赖于基于TDD-FDD的基于CA的TDD UL-DL配置的动态TDD。 用户终端通过采用载波聚合来执行与多个小区的无线电通信，并且具有接收部，当与作为动态TDD小区的二次小区建立连接时，接收从主小区发送的控制信息 并且其包括关于动态TDD小区的子帧配置的动态命令和上行链路信号的发送定时，以及判定动态TDD小区中的一个或多个子帧是否为上行链路子帧的控制部 或基于控制信息的下行链路子帧，并且还基于发送定时来控制上行链路信号的发送定时。

公开(公告)号：US20160337867A1

公开(公告)日：2016-11-17

申请号：US15110895

申请日：2015-03-09

Applicant: NTT DOCOMO, INC.

Inventor： Tooru Uchino ,  Kazuki Takeda ,  Yuichi Kakishima ,  Hiroki Harada

IPC: H04W16/14 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04L1/1896 ,  H04W52/146 ,  H04W52/248 ,  H04W72/0413 ,  H04W72/0453 ,  H04W74/0808

Abstract: A mobile station which communicates with a base station using an unlicensed band includes a resource management unit configured to manage information about an uplink transmission resource allocated by the base station; a transmission detection unit configured to detect whether transmission in the unlicensed band is possible before arrival of the allocated uplink transmission resource; and a transmission unit configured to transmit an uplink signal on the allocated uplink transmission resource, when transmission in the unlicensed band is possible.

Abstract translation: 使用非许可频带与基站进行通信的移动台包括资源管理单元，被配置为管理由所述基站分配的上行链路传输资源的信息; 发送检测单元，被配置为检测在所分配的上行链路传输资源到达之前是否可能在非许可频带中的传输; 以及发送单元，被配置为当所述非许可频带中的发送是可能时，在所分配的上行链路传输资源上发送上行链路信号。

公开(公告)号：US20160255569A1

公开(公告)日：2016-09-01

申请号：US15032692

申请日：2014-10-22

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Kazuki Takeda ,  Satoshi Nagata

IPC: H04W48/08 ,  H04W72/04

CPC classification number: H04W48/08 ,  H04W8/005 ,  H04W72/042 ,  H04W72/0426 ,  H04W72/044 ,  H04W92/18

Abstract: The present invention is designed so that adequate mutual detection is made possible in non-collision-type D2D discovery during inter-terminal direct communication. A user terminal can execute inter-terminal direct communication, and has a receiving section that receives initial allocation location information of a resource for transmitting a discovery signal for use in inter-terminal direct communication, and a control section that switches the location of the resource to transmit the discovery signal, per period, in accordance with a pre-rule.

Abstract translation: 本发明被设计成使得在终端间直接通信期间的非冲突型D2D发现中可以进行适当的相互检测。 用户终端可以执行终端间直接通信，并具有接收部分，其接收用于发送用于终端间直接通信的发现信号的资源的初始分配位置信息，以及切换资源的位置的控制部分 根据预先规定来发送每个周期的发现信号。

公开(公告)号：US20160242127A1

公开(公告)日：2016-08-18

申请号：US15024745

申请日：2014-09-16

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Yuichi Kakishima ,  Tooru Uchino ,  Hideaki Takahashi

IPC: H04W52/36 ,  H04W72/04

CPC classification number: H04W52/365 ,  H04B7/024 ,  H04W72/04 ,  H04W72/1284

Abstract: The present invention is designed to enable adequate transmission power control when inter-base station CA is employed. When inter-base station CA is employed, radio base stations detect when a user terminal's transmission power reaches the maximum transmission power, and execute control to cancel this. For example, a user terminal has a transmission section that transmits an uplink physical channel to each component carrier, a power headroom generating section that generates power headroom, which is extra transmission power of the subject terminal, and a control section that, when the value of the power headroom becomes 0 or less, executes control so that the power headroom is triggered and reported to the radio base stations.

Abstract translation: 本发明被设计成当采用基站间CA时能够进行适当的发送功率控制。 当采用基站间CA时，无线基站检测用户终端的发送功率何时达到最大发送功率，并执行控制取消。 例如，用户终端具有向每个分量载波发送上行物理信道的发送部，产生作为本终端的附加发送功率的功率余量的功率余量生成部，以及控制部， 功率余量变为0以下，执行控制，使得功率余量被触发并向无线基站报告。

公开(公告)号：US20160227492A1

公开(公告)日：2016-08-04

申请号：US15024883

申请日：2014-09-16

Applicant: NTT DOCOMO, INC.

Inventor： Yuichi Kakishima ,  Kazuki Takeda ,  Tooru Uchino ,  Hideaki Takahashi

IPC: H04W52/34 ,  H04W72/08 ,  H04W72/02

CPC classification number: H04W52/346 ,  H04L5/001 ,  H04W52/146 ,  H04W52/281 ,  H04W52/34 ,  H04W72/02 ,  H04W72/085

Abstract: The present invention is designed to enable adequate transmission power control when inter-base station CA is employed. The present invention is designed so that, when inter-base station CA is employed and the transmission power of a user terminal reaches the maximum transmission power, the user terminal executes transmission power control by carrying out power scaling autonomously. For example, the user terminal has a transmission section that transmits an uplink physical channel in each component carrier, and a control section that switches, over time, the component carrier to which the uplink physical channel is transmitted preferentially.

Abstract translation: 本发明被设计成当采用基站间CA时能够进行适当的发送功率控制。 本发明被设计成当使用基站间CA并且用户终端的发送功率达到最大发送功率时，用户终端通过自主地执行功率调整来执行发送功率控制。 例如，用户终端具有在每个分量载波中发送上行链路物理信道的发送部，以及随时间切换优先发送上行链路物理信道的分量载波的控制部。

公开(公告)号：US12289270B2

公开(公告)日：2025-04-29

申请号：US16960678

申请日：2018-01-12

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Lihui Wang ,  Min Liu ,  Xiaolin Hou ,  Chongning Na

IPC: H04L5/00 ,  H04W80/02 ,  H04W88/02

Abstract: The present disclosure is designed to determine appropriate spatial resources for uplink control channels. A user terminal has a receiving section that receives, through higher layer signaling, a plurality of entries of information related to a spatial resource for an uplink control channel, and receives specifying information that specifies, amongst the plurality of entries, entries that correspond respectively to the plurality of uplink control channel resources, by means of a control element of media access control, and a control section that controls determination of one of the plurality of uplink control channel resources, and controls transmission of the uplink control channel, by using an entry that corresponds to the determined uplink control channel resource, amongst the specified entries.

公开(公告)号：US12177158B2

公开(公告)日：2024-12-24

申请号：US17430475

申请日：2019-02-14

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Kazuki Takeda ,  Satoshi Nagata

IPC: H04L5/00 ,  H04W72/044 ,  H04W72/231

Abstract: A user terminal according to an aspect of the present disclosure includes a receiving section that receives a first PDSCH (Physical Downlink Shared Channel) from a first transmission/reception point (TRP), and a second PDSCH from a second TRP, the second PDSCH overlapping the first PDSCH in at least one of time and frequency resources, and a control section that performs control for transmitting a first Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) for the first PDSCH to the first TRP, and transmitting a second HARQ-ACK for the second PDSCH to the second TRP. According to an aspect of the present disclosure, the HARQ-ACK control can be preferably implemented even in the case of using the multi-TRP.

公开(公告)号：US12156203B2

公开(公告)日：2024-11-26

申请号：US17420607

申请日：2019-01-11

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Satoshi Nagata ,  Lihui Wang

IPC: H04W72/1273 ,  H04W72/044 ,  H04W72/23

Abstract: A user terminal includes a receiving section that receives, in a first cell, first downlink control information indicating that configuration of configured grant type 2 or downlink Semi-Persistent Scheduling (DL SPS) of a second cell or a specific Bandwidth Part (BWP) is to be activated, and receives second downlink control information, and a control section that considers that the configuration is to be deactivated, based on a value of a specific field in the second downlink control information. According to an aspect of the present disclosure, configured grant or DL SPS can be appropriately controlled by using downlink control information.

公开(公告)号：US12137461B2

公开(公告)日：2024-11-05

申请号：US17430140

申请日：2019-02-14

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Kazuki Takeda ,  Satoshi Nagata

IPC: H04W72/23 ,  H04L1/1812 ,  H04L5/00

Abstract: A user terminal according to an aspect of the present disclosure includes a receiving section that receives a first PDSCH (Physical Downlink Shared Channel) from a first transmission/reception point (TRP), and a second PDSCH from a second TRP, the second PDSCH overlapping the first PDSCH in at least one of time and frequency resources, and a control section that performs control for using a common codebook to transmit a first Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) for the first PDSCH and a second HARQ-ACK for the second PDSCH. According to an aspect of the present disclosure, the HARQ-ACK control can be preferably implemented even in a case of using the multi-TRP.

公开(公告)号：US12052708B2

公开(公告)日：2024-07-30

申请号：US17280466

申请日：2018-09-28

Applicant: NTT DOCOMO, INC.

Inventor： Hideaki Takahashi ,  Kazuki Takeda ,  Hiroki Harada

IPC: H04L1/00 ,  H04L1/1607 ,  H04L5/00 ,  H04W72/0453 ,  H04W72/1273 ,  H04W72/23

CPC classification number: H04W72/1273 ,  H04L1/0067 ,  H04L1/1671 ,  H04L5/0053 ,  H04L5/0092 ,  H04W72/0453 ,  H04W72/23

Abstract: A user terminal according to one aspect of the present disclosure includes a receiving section that receives downlink control information including a given field indicating a frequency domain resource assigned to a downlink shared channel, and a control section that controls reception of the downlink shared channel based on whether or not a control resource set for a common search space is configured based on a master information block (MIB).