Patents Assigned to NTT DoCoMo, Inc.
  • Publication number: 20240121850
    Abstract: A terminal according to one aspect of the present disclosure includes a control section that uses, when a reference signal (RS) for path loss reference for a specific uplink signal is not configured, a quasi-co-location (QCL) parameter based on a specific downlink signal for a spatial relation for the specific uplink signal, and a transmitting section that transmits the specific uplink signal by using the spatial relation. According to one aspect of the present disclosure, it is possible to determine a QCL parameter appropriately.
    Type: Application
    Filed: October 8, 2020
    Publication date: April 11, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata
  • Publication number: 20240121795
    Abstract: Appropriate PDCCH monitoring is performed even when carrier aggregation is applied. A terminal according to one aspect of the present disclosure includes: a transmitting section that transmits capability information related to the number of downlink cells where Physical Downlink Control Channel (PDCCH) candidates can be monitored; and a control section that determines, based on the capability information, the number of cells where PDCCH monitoring can be performed for New Radio (NR) of a second release, the number of the cells being different from the number of cells where PDCCH monitoring can be performed for NR of a first release.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 11, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Satoshi Nagata, Lihui Wang
  • Publication number: 20240121815
    Abstract: A communication device includes: a control unit configured to determine a priority to apply to a data signal; and a transmitting unit configured to transmit information that indicates the determined priority, and the data signal to which the determined priority is applied, in autonomously selected resources, to another communication device.
    Type: Application
    Filed: March 12, 2021
    Publication date: April 11, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Shinya Kumagai, Shohei Yoshioka, Masaya Okamura, Mayuko Okano, Satoshi Nagata
  • Patent number: 11956714
    Abstract: A user equipment includes a receiving unit configured to receive, from a network node in a VPLMN (Visited Public land mobile network), information indicating a PLMN to be prioritized and information indicating a trigger of PLMN selection; and a control unit configured to execute the PLMN selection, based on the information indicating the PLMN to be prioritized and the information indicating the trigger of the PLMN selection.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: April 9, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Shinya Takeda, Hiroshi Ishikawa, Maoki Hikosaka, Kenichiro Aoyagi, Atsushi Minokuchi, Ban Al-Bakri
  • Patent number: 11956759
    Abstract: A terminal is disclosed including a selection unit that selects first resource candidates for sidelink transmission based on monitoring in a sensing window, and specifies second resource candidates by excluding specific periodic resources that are reserved by another terminal from the first resource candidates; and a transmission unit that performs sidelink transmission using a resource selected from the second resource candidates. In another aspect, a transmission method executed by a terminal is also disclosed.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: April 9, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Shinpei Yasukawa, Satoshi Nagata, Qun Zhao, Jing Wang, Huan Wang, Liu Liu, Anxin Li, Huiling Jiang
  • Publication number: 20240113801
    Abstract: A communication device has: a receiving unit configured to receive information from another communication device; a control unit configured to determine an MCS (Modulation and Coding Scheme) based on the information; and a transmitting unit configured to transmit a signal, to which the MCS is applied, in autonomously selected resources, to the another communication device.
    Type: Application
    Filed: March 12, 2021
    Publication date: April 4, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Shinya Kumagai, Shohei Yoshioka, Masaya Okamura, Mayuko Okano, Satoshi Nagata
  • Patent number: 11948469
    Abstract: A flight information acquisition unit repeatedly acquires the respective flight status of a plurality of drones in flight. A flight irregularity determination unit determines whether or not the drones are flying in a manner deviated from a flight plan. When a flight status of a drone indicating flight deviated from the flight plan has been acquired, a first collision specification unit specifies the drone at risk of collision with a drone having that flight status. When a flight status indicating that there is a possibility of crash for a drone has been acquired, a flight status processing unit (such as a flight irregularity determination unit) sets a higher priority for processing based on the flight status acquired from that drone than for processing based on the flight status acquired from another drone.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: April 2, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Takefumi Yamada, Yuichiro Segawa, Yasuhiro Kitamura
  • Patent number: 11948472
    Abstract: A popularity estimation device includes: an acquisition unit configured to acquire a first map image including a first particular point and to acquire a plurality of second map images including a second particular point which is a particular point; a generation unit configured to generate a first feature vector and a second feature vector by inputting the first map image and the second map images to a geographical feature generation model with a map image as an input and with a feature vector indicating geographical features of the map image as an output; a score calculating unit configured to calculate a popularity score of the first particular point from a popularity score of the second particular point based on a degree of similarity between the first feature vector and the second feature vector; and an output unit configured to output the popularity score of the first particular point.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: April 2, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Anna Oonishi, Satoshi Kawasaki, Yusuke Fukazawa
  • Patent number: 11950319
    Abstract: When terminal identification information TI of one terminal device used by a user among two or more terminal devices is newly stored in a memory of a host device together with user identification information UI (S3a), an examination part examines, in the memory of the host device, a presence or absence of terminal identification information (terminal identification information TI-p) corresponding to the user identification information UI, excluding terminal identification information TI and terminal identification information corresponding to a terminal device that is currently used by the user (S11). When the terminal identification information TI-p exists, a management part performs control to transmit predetermined instruction information together with the terminal identification information TI-p to the two or more terminal devices (S12).
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: April 2, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuuta Higuchi, Kazuoki Ichikawa, Takashi Okada
  • Publication number: 20240107619
    Abstract: A terminal according to one aspect of the present disclosure includes: a transmitting section that transmits capability information indicating support of update of at least part of radio resource control (RRC) parameters between a serving cell and a non-serving cell; and a control section that assumes, when the capability information is transmitted, different cell radio network identifiers (C-RNTIs) in the serving cell and the non-serving cell. According to one aspect of the present disclosure, a C-RNTI can be appropriately selected.
    Type: Application
    Filed: February 18, 2021
    Publication date: March 28, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang
  • Publication number: 20240107354
    Abstract: To appropriately perform CSI measurement and reporting for multi-panel/TRP. A terminal according to one aspect of the present disclosure includes a receiving section that receives configuration information related to a plurality of pairs of channel measurement resources, and a control section that controls, on the basis of the configuration information, group-based beam reporting or channel state information reporting for a plurality of transmission/reception points.
    Type: Application
    Filed: January 24, 2022
    Publication date: March 28, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
  • Patent number: 11943157
    Abstract: A user terminal includes a control unit that determines, based on at least one of comparison of a time offset with a threshold value between a timing related to a spatial relation of uplink transmission and the uplink transmission and that usage of a sounding reference signal (SRS) resource set for the uplink transmission is a specific usage, one of a transmission control indication (TCI) state or a quasi-co-location (QCL) assumption for downlink transmission and indicated spatial relation information as the spatial relation, and a transmitting unit that performs the uplink transmission by using the spatial relation.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: March 26, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata
  • Patent number: 11943700
    Abstract: In 5G cell (230) of 5G system (200), upon detecting that access to the 5G system (200) is barred, the 5G system (200) is congested, 5G core network (220) of the 5G system (200) does not support IMS-type communication service, or fallback to 4G system (300) is instructed, UE (100) selects 4G cell (330) of the 4G system (300) as a target cell for connection. The UE (100) transmits a connection request signal for the IMS-type communication service to the target cell for connection.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: March 26, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Kenichiro Aoyagi, Hiroshi Ishikawa, Atsushi Minokuchi, Shinya Takeda
  • Patent number: 11943720
    Abstract: A user equipment includes a transmitting unit configured to transmit a groupcast to a group including a plurality of user equipments, a receiving unit configured to receive a response related to a retransmission control for the groupcast, and a control unit configured to control a leakage power to another channel arranged by frequency division with a channel via which a response related to the retransmission control for the groupcast is received.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: March 26, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata, Huan Wang, Xiaolin Hou
  • Patent number: 11943766
    Abstract: To appropriately control communication even when a reference signal is dynamically triggered, a user terminal according to one aspect of the present disclosure includes: a receiving section that receives a downlink shared channel and a Channel State Information (CSI) reference signal; and a control section that, when first downlink control information used to schedule the downlink shared channel and second downlink control information used to trigger the CSI reference signal are transmitted by different cells, and resources respectively indicated by the first downlink control information and the second downlink control information overlap, performs control not to perform at least one of reception of the downlink shared channel and measurement that uses the CSI reference signal.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: March 26, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Shohei Yoshioka, Kazuki Takeda, Satoshi Nagata
  • Publication number: 20240098325
    Abstract: The information processing device 30 includes: an extraction unit 33 for extracting a target user who has used content in a content delivery service providing the content to a user; an acquisition unit 34 for acquiring preference information related to a preference of the target user extracted by the extraction unit 33 and including a plurality of first item values related to a predetermined preference; and a tendency information generation unit 35 for generating tendency information indicating a tendency of the content based on the preference information of the target user acquired by the acquisition unit 34.
    Type: Application
    Filed: December 17, 2021
    Publication date: March 21, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Kunihiro AIBA, Souhei ONO, Taku ITO
  • Publication number: 20240098799
    Abstract: A terminal includes a receiver configured to receive system information including information pertaining to random access procedures from the base station; a controller configured to select the resources to be used for random access based on the information pertaining to the random access procedure and a device type of the terminal acting as a reference terminal; and a transmitter configured to transmit a random access preamble to the base station using the selected resource, wherein the device type of the reference terminal is a reduced-function terminal type or an enhanced-coverage terminal type.
    Type: Application
    Filed: December 14, 2021
    Publication date: March 21, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Haruhi Echigo, Daisuke Kurita, Satoshi Nagata
  • Publication number: 20240098787
    Abstract: A transmission node includes: a reception unit configured to execute an LBT (Listen before talk) in a time interval immediately before transmitting a signal; a transmission unit configured to transmit a signal in a case where reception power is less than a threshold value in the time interval; and a control unit configured to, in a case where multiple signals are to be transmitted, change control related to the LBT for a signal to be transmitted for a first time and change control related to the LBT for a signal to be transmitted other than for the first time.
    Type: Application
    Filed: February 22, 2021
    Publication date: March 21, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Masaya Okamura, Mayuko Okano, Yuki Takahashi, Shohei Yoshioka, Satoshi Nagata
  • Publication number: 20240098541
    Abstract: It is possible to perform appropriate CSI reporting for a non-serving cell. A terminal according to one aspect of the present disclosure includes a receiving section that receives separate channel state information (CSI) report configurations for respective reference signals of a reference signal of a serving cell and a reference signal of a non-serving cell or that receives one CSI report configuration including both a reference signal of the serving cell and a reference signal of the non-serving cell, and a control section that controls CSI reporting on the basis of the separate CSI report configurations or the one CSI report configuration.
    Type: Application
    Filed: January 24, 2022
    Publication date: March 21, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen
  • Publication number: 20240098526
    Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives a configuration of a first reference signal for beam failure detection (BFD) and receives a medium access control-control element (MAC CE); and a control section that updates the first reference signal based on the MAC CE. According to an aspect of the present disclosure, it is possible to appropriately determine a BFD RS.
    Type: Application
    Filed: November 27, 2020
    Publication date: March 21, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Lan Chen