公开(公告)号：US20250048126A1

公开(公告)日：2025-02-06

申请号：US18716386

申请日：2021-12-10

Applicant: NTT DOCOMO, INC.

Inventor： Haruhi Echigo ,  Shohei Yoshioka ,  Daisuke Kurita ,  Shinya Kumagai ,  Yuki Takahashi ,  Satoshi Nagata

IPC: H04W16/28 ,  H04B7/06

Abstract: A communication device includes: a communication unit configured to transmit or receive a downlink signal or an uplink signal; and a control unit configured to determine a default beam in a wireless communication. In a case where a beam to be applied to the downlink signal or the uplink signal is changed from the default beam, the control unit changes the beam to be applied to the downlink signal or the uplink signal back to the determined default beam.

公开(公告)号：US20250048125A1

公开(公告)日：2025-02-06

申请号：US18719099

申请日：2021-12-22

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Takahashi ,  Shinya Kumagai ,  Daisuke Kurita ,  Shohei Yoshioka ,  Haruhi Echigo ,  Satoshi Nagata

IPC: H04W16/26

Abstract: A wireless relay device includes: a reception unit configured to receive information indicating an activation or deactivation of a communication using relaying by a plurality of wireless relay devices from a base station, another wireless relay device, or a terminal; and a control unit configured to activate or deactivate a relaying function of the wireless relay device itself, based on the information indicating the activation or deactivation. The information indicating the activation or deactivation includes a number of hops in the communication.

公开(公告)号：US20250048122A1

公开(公告)日：2025-02-06

申请号：US18718301

申请日：2021-12-20

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Takahashi ,  Shinya Kumagai ,  Daisuke Kurita ,  Shohei Yoshioka ,  Haruhi Echigo ,  Satoshi Nagata

IPC: H04W16/26 ,  H04W76/10

Abstract: A base station includes: a transmission unit configured to transmit signals that are associated with indexes and that include a synchronization signal and broadcast information to a plurality of wireless relay devices; and a control unit configured to control an operation related to transmission of the signals that are associated with the indexes. The control unit configures the signals that are associated with the indexes based on a number of the plurality of wireless relay devices.

公开(公告)号：US20250039685A1

公开(公告)日：2025-01-30

申请号：US18719137

申请日：2021-12-22

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Takahashi ,  Shinya Kumagai ,  Daisuke Kurita ,  Shohei Yoshioka ,  Haruhi Echigo ,  Satoshi Nagata

IPC: H04W16/26 ,  H04W74/0833

Abstract: A wireless relay device includes: a reception unit configured to receive a signal that is associated with an index and that includes a synchronization signal and broadcast information from a base station or a first wireless relay device; and a transmission unit configured to transmit the signal that is associated with the index to a second wireless relay device or a terminal. The reception unit receives first information for transmitting the signal that is associated with the index from the base station or the first wireless relay device, and the transmission unit transmits the signal that is associated with the index and the first information to the second wireless relay device or the terminal based on the first information.

公开(公告)号：US12177886B2

公开(公告)日：2024-12-24

申请号：US17765882

申请日：2019-10-03

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Takahashi ,  Satoshi Nagata ,  Lihui Wang ,  Xiaohong Zhang ,  Xiaolin Hou

IPC: H04W72/566 ,  H04L1/00 ,  H04L5/00 ,  H04W24/10 ,  H04W72/23

Abstract: A terminal according to an aspect of the present disclosure includes: a control section that determines a priority of a channel state information (CSI) report based on at least one of a type of downlink control information triggering the CSI report, a parameter used for transmission of the downlink control information, or presence or absence of uplink (UL) data allocated to an uplink shared channel used for transmission of the CSI report; and a transmitting section that transmits, in a case where transmission of the CSI report and transmission of another UL signal overlap with each other, one of the CSI report and the another UL signal based on the priority.

公开(公告)号：US12167389B2

公开(公告)日：2024-12-10

申请号：US17625580

申请日：2019-07-10

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Takahashi ,  Shohei Yoshioka ,  Satoshi Nagata ,  Lihui Wang

IPC: H04W4/00 ,  H04L1/08 ,  H04W72/0446 ,  H04W72/1268

Abstract: An aspect of a terminal according to the present disclosure includes: a receiving section that receives information for indicating transmission of an uplink shared channel; and a control section that controls, when dividing the uplink shared channel into a plurality of segments and transmitting the segments, to apply, to at least one segment, at least one of a different redundancy version from a redundancy version that is configured for the uplink shared channel and a value different from a parameter value relating to an overhead that is configured for the uplink shared channel.

公开(公告)号：US20240381117A1

公开(公告)日：2024-11-14

申请号：US18692167

申请日：2021-09-27

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Shinya Kumagai ,  Yuki Takahashi ,  Mayuko Okano ,  Masaya Okamura ,  Satoshi Nagata

IPC: H04W16/28 ,  H04W72/0453 ,  H04W84/06

Abstract: A terminal includes: a communication unit configured to perform communication with a base station that is included in an NTN (Non-Terrestrial Network) via a non-terrestrial device and a wireless relay device, based on a configuration related to a specific frequency band; and a control unit configured to switch: a beam; or a configuration related to the specific frequency band, to be applied to a section from the wireless relay device to the terminal itself in a link from the non-terrestrial device to the terminal itself.

公开(公告)号：US20240244627A1

公开(公告)日：2024-07-18

申请号：US18562168

申请日：2022-03-30

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Takahashi ,  Satoshi Nagata ,  Qiping Pi ,  Jing Wang ,  Lan Chen

IPC: H04W72/21 ,  H04W72/044 ,  H04W72/563

CPC classification number: H04W72/21 ,  H04W72/0473 ,  H04W72/563

Abstract: A terminal comprising: a transmission unit that transmits one or more uplink channels; and a control unit that multiplexes the one or more uplink channels; wherein the control unit determines the one or more uplink channels based on a specific priority so that a transmission power of the one or more uplink channels is smaller than a specific power; and the specific priority is defined based on at least one of a condition among a priority of an uplink channel, a type of the uplink channel, a priority of uplink control information transmitted through the uplink channel, and a type of the uplink control information.

公开(公告)号：US20240179770A1

公开(公告)日：2024-05-30

申请号：US18283407

申请日：2021-03-22

Applicant: NTT DOCOMO, INC.

Inventor： Daisuke Kurita ,  Haruhi Echigo ,  Shohei Yoshioka ,  Shinya Kumagai ,  Yuki Takahashi ,  Yuki Hokazono ,  Satoshi Nagata

IPC: H04W76/15 ,  H04W8/22 ,  H04W76/20

CPC classification number: H04W76/15 ,  H04W8/22 ,  H04W76/20

Abstract: A radio communication node includes a connection unit capable of connecting with multiple radio communication nodes having a same or different function or role, and controls connection performed by the connection unit.

公开(公告)号：US20240129088A1

公开(公告)日：2024-04-18

申请号：US18278315

申请日：2021-03-05

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Shinya Kumagai ,  Yuki Takahashi ,  Mayuko Okano ,  Masaya Okamura ,  Satoshi Nagata

IPC: H04L5/00 ,  H04W24/10 ,  H04W72/02 ,  H04W72/044

CPC classification number: H04L5/0051 ,  H04W24/10 ,  H04W72/02 ,  H04W72/046

Abstract: A communication apparatus includes a transmitting unit configured to transmit, to another communication apparatus, a signal requesting transmission of SRS (Sounding reference signal) in a resource autonomously selected; a receiving unit configured to receive the SRS from the another communication apparatus; and a control unit configured to perform measurement by using the SRS.