公开(公告)号：US20250167967A1

公开(公告)日：2025-05-22

申请号：US18841149

申请日：2023-02-10

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata

IPC: H04L5/00 ,  H04W72/232

Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives a list indicating transmission configuration indication (TCI) states applicable to a plurality of types of signals and a configuration related to a field in downlink control information for indication of one or more TCI states in the list; and a control section that determines a size of the field on the basis of at least one of the list, the configuration, and capability information related to the indication. An aspect of the present disclosure allows a TCI state to be appropriately recognized.

公开(公告)号：US20250158772A1

公开(公告)日：2025-05-15

申请号：US18836625

申请日：2022-02-10

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata ,  Jing Wang ,  Lan Chen

IPC: H04L5/00 ,  H04L1/00

Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a configuration of a demodulation reference signal (DMRS), and a control section that controls transmission and reception of the DMRS, based on one or more associations between a plurality of code division multiplexing (CDM) groups and a plurality of DMRS ports and the configuration. The number of the plurality of DMRS ports for DMRS configuration type 1 is larger than 8, and the number of the plurality of DMRS ports for DMRS configuration type 2 is larger than 12. The plurality of DMRS ports include a first plurality of DMRS ports and a second plurality of DMRS ports. According to one aspect of the present disclosure, an appropriate number of DMRS ports can be used.

公开(公告)号：US20250156983A1

公开(公告)日：2025-05-15

申请号：US18839116

申请日：2023-02-22

Applicant: NTT DOCOMO, INC.

Inventor： Takuya IZUMISAWA ,  Akira YAMADA ,  Takashi SUZUKI

IPC: G06Q50/40

Abstract: A recommendation system includes an acquisition unit configured to acquire movement information indicating a departure point and a destination related to a future movement of a user using a means of transportation emitting CO2, an emission amount estimation unit configured to estimate, for a movement related to the movement information acquired by the acquisition unit, a CO2 emission amount due to the movement for each of a plurality of movement timings different from each other, and a determination unit configured to determine a facility that the user can visit during the movement and that is recommended to the user, on the basis of the CO2 emission amount for each movement timing, estimated by the emission amount estimation unit.

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：US20250150979A1

公开(公告)日：2025-05-08

申请号：US18867242

申请日：2022-05-20

Applicant: NTT DOCOMO, INC.

Inventor： Naoya SHIBAIKE ,  Yuki MATSUMURA ,  Satoshi NAGATA ,  Qiping PI ,  Jing WANG ,  Lan CHEN ,  Yiyi LU ,  Yong LI

IPC: H04W52/24 ,  H04W74/00 ,  H04W74/0833

Abstract: A terminal according to one aspect of the present disclosure includes a control section that determines a plurality of groups including a plurality of resources for a physical random access channel, determines one or more pathloss reference signals for the plurality of groups, and determines a plurality of pieces of transmission power corresponding to the plurality of respective resources, based on the one or more pathloss reference signals; and a transmitting section that transmits a plurality of repetitions of the physical random access channel in the plurality of resources. According to one aspect of the present disclosure, a coverage of a random access procedure can be improved.

公开(公告)号：US20250146823A1

公开(公告)日：2025-05-08

申请号：US18681317

申请日：2022-08-24

Applicant: NTT DOCOMO, INC.

Inventor： Yusuke NAKAMURA ,  Tetsuya YAMAGUCHI ,  Takuya IZUMISAWA ,  Akinari SAKAI

IPC: G01C21/20 ,  G01P13/00

Abstract: An arrival time determining device that can accurately estimate a timing of arrival at a predetermined position. A mobile terminal 100 includes at least a user motion determining unit 102, an estimated arrival time calculating unit 104, and an arrival time determining unit 105. The user motion determining unit 102 determines a user motion (a stopped state or a boarding state) based on motion sensor information of the mobile terminal 100. The estimated arrival time calculating unit 104 calculates a time (time A) at which the mobile terminal 100 has arrived at a destination as an estimated arrival time test based on a position of the mobile terminal 100 and the user motion (when the user is in the stopped state). The arrival time determining unit 105 determines the estimated arrival time test as a result arrival time tres based on the user motion (when the user is in the boarding state). The result arrival time tres is used to next calculate the estimated arrival time test.

公开(公告)号：US12295040B2

公开(公告)日：2025-05-06

申请号：US17799155

申请日：2021-02-24

Applicant: NTT DOCOMO, INC.

Inventor： Tomoya Ohara

IPC: H04W74/08 ,  H04W74/0833

Abstract: A terminal includes a receiving unit that receives, from a base station, a parameter for a random access procedure; a control unit that determines a time domain location of the PUSCH slot based on a time domain location of a Physical Random Access Channel (RACH) slot, subcarrier spacing of the RACH slot, subcarrier spacing of a Physical Uplink Shared Channel (PUSCH) slot, and the parameter; and a transmitting unit that transmits, at the determined time domain location, the PUSCH to the base station.

公开(公告)号：US12295016B2

公开(公告)日：2025-05-06

申请号：US17906030

申请日：2020-03-27

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata

IPC: H04L1/1812 ,  H04L1/1829 ,  H04L1/1867 ,  H04L5/00 ,  H04W28/04 ,  H04W72/1273 ,  H04W72/21 ,  H04W72/23 ,  H04W72/231 ,  H04W72/232 ,  H04W72/30 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08 ,  H04W92/02 ,  H04W92/10

Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives downlink control information (DCI) for scheduling a downlink shared channel of a multicast; and a control section that controls transmission of Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) with respect to the downlink shared channel based on the DCI, wherein the DCI is common to a plurality of terminals. According to one aspect of the present disclosure, a PDSCH using the multicast can be appropriately received.

公开(公告)号：US20250141262A1

公开(公告)日：2025-05-01

申请号：US18683108

申请日：2021-08-24

Applicant: NTT DOCOMO, INC.

Inventor： Tomoya Ohara ,  Shinya Kumagai ,  Daisuke Kurita ,  Takuma Nakamura

IPC: H02J50/00 ,  H02J50/20

Abstract: A terminal includes: a reception unit configured to receive a power supplying signal from another device and to receive power supply; and a control unit configured to control an operation of receiving the power supplying signal. The power supplying signal includes a signal used for energy harvesting and a signal used for a purpose other than the energy harvesting, and the another device includes a base station and another terminal.

公开(公告)号：US20250133598A1

公开(公告)日：2025-04-24

申请号：US18682289

申请日：2022-08-16

Applicant: NTT DOCOMO, INC.

Inventor： Yuki Matsumura ,  Satoshi Nagata ,  Jing Wang ,  Weiqi Sun

IPC: H04W74/0833 ,  H04W52/04

Abstract: To properly perform communication even in a case where communication is performed using a plurality of transmission points. A terminal according to an aspect of the present disclosure includes: a receiving section that receives a downlink control channel indicating transmission of a random access channel to at least one of a serving cell and a non-serving cell; and a control section that controls transmission of the random access channel on the basis of at least one of a random access channel configuration corresponding to a given cell and power information regarding a synchronization signal block corresponding to the given cell when the random access channel is transmitted on the basis of the downlink control channel.