公开(公告)号：US12302244B2

公开(公告)日：2025-05-13

申请号：US17601614

申请日：2020-04-09

Applicant: NTT DOCOMO, INC.

Inventor： Daiki Takeda ,  Hiroki Harada

IPC: H04W52/02 ,  H04W68/02

Abstract: A base station apparatus including: a transmission unit configured to transmit configuration information indicating whether to place both of a first activation signal and a second activation signal on a resource for placing an activation signal that is a trigger for monitoring a paging occasion, wherein the configuration information implicitly indicates configuration other than configuration indicating whether to place both of the first activation signal and the second activation signal on the resource.

公开(公告)号：US20250097917A1

公开(公告)日：2025-03-20

申请号：US18727523

申请日：2022-01-14

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Daisuke Kurita ,  Mayuko Okano ,  Kousuke Shima ,  Masaya Okamura ,  Tomoya Ohara

IPC: H04W72/0453 ,  H04W16/14

Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives first configuration information related to use of a frequency to which shared spectrum channel access is applied, and second configuration information for configuring a resource in which frequency division multiplexing of a downlink (DL) resource and an uplink (UL) resource is available, and a control section that controls, based on the first configuration information and the second configuration information, use of the resource in which the frequency division multiplexing is available in the frequency applied with the shared spectrum channel access. According to one aspect of the present disclosure, it is possible to enhance efficiency of resource use.

公开(公告)号：US12219533B2

公开(公告)日：2025-02-04

申请号：US17595421

申请日：2019-05-17

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Shohei Yoshioka ,  Satoshi Nagata

IPC: H04W72/044

Abstract: A user terminal, when using a high frequency band having a frequency higher than a certain frequency band including one or a plurality of frequency ranges, increases number of symbols constituting one slot. The user terminal transmits and receives signals by using the slot with the increased number of symbols.

公开(公告)号：US12213088B2

公开(公告)日：2025-01-28

申请号：US17756020

申请日：2019-11-14

Applicant: NTT DOCOMO, INC.

Inventor： Daisuke Kurita ,  Hiroki Harada ,  Shinya Kumagai

IPC: H04W56/00

Abstract: A terminal receives a master information block and a synchronization signal block from a radio base station, and acquires an offset between the synchronization signal block and a control resource set by using a parameter for quasi co-location derivation included in the master information block. The terminal assumes quasi co-location associated with the synchronization signal block based on the acquired offset.

公开(公告)号：US12207209B2

公开(公告)日：2025-01-21

申请号：US17595366

申请日：2020-05-14

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Daisuke Murayama ,  Daisuke Kurita

IPC: H04W56/00 ,  H04L5/00 ,  H04W24/10

Abstract: SSB indices are appropriately reported. A user terminal according to an aspect of the present disclosure includes a control section that determines an assumption utilized for a number of synchronization signal blocks (SSBs) actually transmitted in a given carrier, based on whether the given carrier is assumable to perform inter-cell synchronization, and a transmitting section that transmits information related to indices of SSBs detected.

公开(公告)号：US12199901B2

公开(公告)日：2025-01-14

申请号：US17595364

申请日：2020-01-21

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Shohei Yoshioka ,  Satoshi Nagata

IPC: H04L5/00 ,  H04W72/044

Abstract: A terminal can use a high frequency band having a higher frequency than a certain frequency band including one or more frequency ranges. When using the high frequency band, the terminal extends a range of SSB than that when using the certain frequency band and receives the SSB of which the SSB has been extended.

公开(公告)号：US12193034B2

公开(公告)日：2025-01-07

申请号：US17793305

申请日：2020-01-24

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Daisuke Kurita ,  Satoshi Nagata ,  Jing Wang

IPC: H04W16/14 ,  H04W72/30

Abstract: A terminal includes a reception unit that receives a synchronization signal block in an unlicensed band of a high frequency band higher than or equal to a frequency band of a frequency range 2 (FR2), the FR2 being in a range including a frequency range 1 (FR1) that is a low frequency band and the FR2 that is a high frequency band in a new radio (NR) system; and a control unit that identifies an index of a candidate position for transmitting the synchronization signal block based on a sequence of a demodulation reference signal of a broadcast channel included in the synchronization signal block and a payload of the broadcast channel.

公开(公告)号：US12150140B2

公开(公告)日：2024-11-19

申请号：US17439266

申请日：2019-03-15

Applicant: NTT DOCOMO, INC.

Inventor： Kazuki Takeda ,  Hiroki Harada ,  Satoshi Nagata ,  Lihui Wang ,  Xiaolin Hou

IPC: H04W4/00 ,  H04L1/1812 ,  H04W72/23

Abstract: A user terminal according to an aspect of the present disclosure comprises: a reception unit which receives downlink control information including a field for each transport block (TB) or a field for a specific transport block (TB); and a control unit which controls the transmission or reception of a plurality of different transport blocks (TB) using a plurality of shared channels that are scheduled according to the downlink control information over a plurality of time units. Accordingly, it is possible to appropriately control the transmission or reception of a plurality of pieces of data that are multi-data scheduled.

公开(公告)号：US12081339B2

公开(公告)日：2024-09-03

申请号：US17596972

申请日：2019-06-25

Applicant: NTT DOCOMO, INC.

Inventor： Shohei Yoshioka ,  Yuki Matsumura ,  Hiroki Harada ,  Satoshi Nagata ,  Lihui Wang

IPC: H04L1/18 ,  H04L1/08 ,  H04L1/1812 ,  H04W72/0446

CPC classification number: H04L1/1812 ,  H04L1/08 ,  H04W72/0446

Abstract: One aspect of a terminal according to the present disclosure includes a receiving section that receives downlink shared channel scheduled by downlink control information, and a control section that determines a feedback timing of transmission confirmation information responding to the downlink shared channel on the basis of information related to a feedback timing notified by at least one of the downlink control information and higher layer signaling, and a reference point configured in a slot where the downlink shared channel is transmitted or subsequent slots.

公开(公告)号：US12069665B2

公开(公告)日：2024-08-20

申请号：US16331636

申请日：2017-09-07

Applicant: NTT DOCOMO, INC.

Inventor： Hiroki Harada ,  Satoshi Nagata ,  Jing Wang ,  Liu Liu ,  Huiling Jiang

IPC: H04W72/21 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/1268 ,  H04W72/23

CPC classification number: H04W72/21 ,  H04L5/0055 ,  H04W72/0446 ,  H04W72/1268 ,  H04W72/23

Abstract: The present invention is designed so that uplink control information such as delivery acknowledgment signals can be transmitted properly, even when UL/DL configurations are changed, in a communication system that is configured to use listening. According to one aspect of the present invention, a user terminal has a receiving section that receives downlink control information and downlink data, a transmission section that transmits a delivery acknowledgment signal in response to the downlink data, and a control section that controls transmission of the delivery acknowledgment signal based on a result of UL listening which is executed before transmission of the delivery acknowledgment signal, and based on information that is contained in the downlink control information and/or timing that is configured in advance on a per DL burst basis.