公开(公告)号：US12082149B2

公开(公告)日：2024-09-03

申请号：US17426441

申请日：2019-02-14

Applicant: NTT DOCOMO, INC.

Inventor： Daiki Takeda ,  Kazuaki Takeda ,  Takayuki Isogawa ,  Tomoya Ohara

IPC: H04W68/02 ,  H04W76/28

CPC classification number: H04W68/02 ,  H04W76/28

Abstract: A user equipment includes a control unit that sets an operation mode of the user equipment to an idle mode; a transmission unit that transmits data by using a preconfigured radio resource for transmitting data in the idle mode; and a reception unit that receives transmission acknowledgement information for the data by monitoring at least one search space from a paging search space or an additional search space that is to be monitored in the idle mode.

公开(公告)号：US20230217309A1

公开(公告)日：2023-07-06

申请号：US17998878

申请日：2021-05-24

Applicant: NTT DOCOMO, INC.

Inventor： Syouichi Higuchi ,  Daiki Takeda ,  Masashi Anzawa ,  Hiroki lshizuka

IPC: H04W28/10 ,  H04W28/16

CPC classification number: H04W28/10 ,  H04W28/16

Abstract: A terminal is provided. The terminal includes a communication unit configured to perform communication, and a control unit configured to request a service with priority control related to the communication. The control unit is: an application that performs configuration related to a resource control unit for distributing communication packets associated with a communication path; or a client of the service with priority control related to the communication.

公开(公告)号：US11533691B2

公开(公告)日：2022-12-20

申请号：US16649569

申请日：2018-09-18

Applicant: NTT DOCOMO, INC.

Inventor： Daiki Takeda ,  Satoshi Nagata ,  Daisuke Murayama ,  Hiroki Harada

IPC: H04W56/00 ,  H04W72/00 ,  H04W72/04 ,  H04L5/00

Abstract: A terminal is disclosed including a receiver configured to receive a synchronization signal block (SS/PBCH block) including information that indicates a configuration of a control resource set; and a processor configured to determine a position of the control resource set relative to the SS/PBCH block based on the information. In other aspects, another terminal, a radio communication method for a terminal, and a base station are also disclosed.

公开(公告)号：US20220272664A1

公开(公告)日：2022-08-25

申请号：US17753386

申请日：2019-09-05

Applicant: NTT DOCOMO, INC.

Inventor： Daiki Takeda ,  Tomoya Ohara ,  Hiroki Harada

IPC: H04W72/00 ,  H04W72/04 ,  H04W56/00 ,  H04W74/08 ,  H04W16/14

Abstract: A terminal includes a reception unit that receives, from a base station, a first set including a plurality of resources that include at least a synchronization signal and optionally further include a broadcast channel and a second set including a plurality of resources that include at least a synchronization signal added to the first set in a frequency domain and optionally further include a broadcast channel, a control unit that assumes a Quasi co location (QCL) identical to a QCL assumed for the first set when receiving the second set, and a communication unit that executes a random access procedure with the base station based on information included in the resources.

公开(公告)号：US20220240221A1

公开(公告)日：2022-07-28

申请号：US17597114

申请日：2019-07-05

Applicant: NTT DOCOMO, INC.

Inventor： Daiki Takeda ,  Takuma Takada

IPC: H04W68/02 ,  H04W52/02

Abstract: A terminal includes a reception unit configured to receive, from a base station, information for requesting a terminal capability report related to a wake-up signal associated with a paging occasion and configuration information related to at least one of a first wake-up signal and a second wake-up signal, a transmission unit configured to transmit the terminal capability report related to the wake-up signal to the base station, and a control unit configured to determine a configuration of the first wake-up signal and a configuration of the second wake-up signal based on the configuration information related to the wake-up signal, and the reception unit receives the wake-up signal and paging associated with the wake-up signal from the base station, and the control unit determines the configuration of the first wake-up signal from a value based on the configuration of the second wake-up signal.

公开(公告)号：US20220167385A1

公开(公告)日：2022-05-26

申请号：US17598143

申请日：2019-03-29

Applicant: NTT DOCOMO, INC.

Inventor： Daiki Takeda ,  Kazuaki Takeda ,  Hiroki Harada ,  Takayuki Isogawa

IPC: H04W72/12 ,  H04L5/00

Abstract: A user equipment including: a transmission unit that transmits a signal to a base station apparatus using a preconfigured uplink resource; a reception unit that receives a signal from the base station apparatus; and a control unit that starts or restarts a predetermined timer in response to receiving the signal from the base station apparatus.

公开(公告)号：US20210318407A1

公开(公告)日：2021-10-14

申请号：US17265115

申请日：2018-08-07

Applicant: NTT DOCOMO, INC.

Inventor： Tomoya Ohara ,  Hiroki Harada ,  Daiki Takeda

IPC: G01S5/02

Abstract: A user equipment comprises a transmitter configured to transmit a signal to a base station apparatus; a controller configured to determine whether an environment to the base station apparatus is a line of sight (LOS) environment. The controller changes an operation according to the determined environment, or the transmitter transmits to the base station apparatus information indicating the determined environment.

公开(公告)号：US20210068064A1

公开(公告)日：2021-03-04

申请号：US16961591

申请日：2018-01-11

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Daiki Takeda ,  Satoshi Nagata

IPC: H04W56/00 ,  H04W72/00 ,  H04W72/04 ,  H04W52/02

Abstract: To prevent occurrence of delay and/or increase in power consumption at the time of access to a network in future radio communication systems, one aspect of a user terminal according to the present disclosure includes: a receiving section that receives a synchronization signal block including a broadcast channel in a certain sync raster; and a control section that controls, based on certain bit information of a certain information element included in the synchronization signal block, a sync raster to be detected by variably interpreting bit information included in at least one of the certain information element and another information element.

公开(公告)号：US10925019B2

公开(公告)日：2021-02-16

申请号：US16346320

申请日：2017-11-01

Applicant: NTT DOCOMO, INC.

Inventor： Daiki Takeda ,  Hiroki Harada ,  Satoshi Nagata

IPC: H04W56/00 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26

Abstract: Even when different numerologies from those of legacy LTE systems are used, synchronization signals are appropriately transmitted and/or received. A user terminal includes: a reception section that receives a first synchronization signal and a second synchronization signal mapped on predetermined resources; and a control section that controls synchronization processing based on the first synchronization signal and the second synchronization signal, and spacings of the first synchronization signal and the second synchronization signal at which the first synchronization signal and the second synchronization signal are mapped on subcarriers are different.

公开(公告)号：US10070453B2

公开(公告)日：2018-09-04

申请号：US14910157

申请日：2014-07-07

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Inoue ,  Daiki Takeda

IPC: H04W72/12 ,  H04B7/06 ,  H04W72/04 ,  H04B7/10 ,  H04W88/08 ,  H01Q1/24 ,  H01Q21/06

Abstract: A radio base station apparatus has a multimode antenna providing multiple antenna configurations, an acquisition unit configured to acquire channel information of user equipment and at least one of location information of the user equipment and phase difference information between antenna ports of signals transmitted from the user equipment, and a determination unit configured to determine scheduling for the user equipment together with an antenna configuration to be allocated to the user equipment, based upon the acquired information.