Patents by Inventor Kazuki NAGATA

Kazuki NAGATA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11985092
    Abstract: A terminal is disclosed that includes a transmitter that performs uplink (UL) transmission without a UL grant using a resource configured by higher layer signaling, a receiver that receives retransmission command information, which indicates a retransmission command for the UL transmission, and a processor that controls a resource used for retransmission of the UL transmission by units of symbols based on the retransmission command information. In other aspects, a base station and a radio communication method for a terminal are disclosed.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: May 14, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Kazuaki Takeda, Kazuki Takeda, Satoshi Nagata
  • Publication number: 20240149900
    Abstract: An HMI control device is configured to control an HMI device mounted in a vehicle, which is capable of performing an autonomous driving as a first task. The HMI control device is configured to: acquire a possible duration for the autonomous driving; and present, by the HMI device, a second task that an occupant on a driver's seat is able to start executing during the autonomous driving based on the possible duration acquired by the time acquisition unit.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Inventors: Yuji OTA, Asako NAGATA, Takeshi YAMAMOTO, Shizuka YOKOYAMA, Takuya KUME, Kazuki KOJIMA
  • Patent number: 11974279
    Abstract: A user terminal according to one aspect of the present disclosure includes: a receiving section that receives information related to a timing being used as a reference of a start symbol of an uplink shared channel or a downlink shared channel in a given transmission occasion; and a control section that determines a time domain resource over one or more slots allocated to the uplink shared channel or the downlink shared channel, based on the start symbol determined with the timing being used as the reference and a number of consecutive symbols from the start symbol.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: April 30, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang
  • Patent number: 11973716
    Abstract: A terminal is disclosed that includes a processor that, in case where frequency division duplex (FDD) is applied, controls a transmission of an uplink (UL) signal, in FDD, at a same timing as a UL transmission timing that is applied in time division duplex (TDD). The terminal also includes a receiver that receives a downlink control information (DCI), and a physical downlink shared channel (PDSCH) scheduled by the DCI. The terminal also includes a transmitter that transmits a HARQ-ACK in response to the PDSCH. The reception of the DCI and the transmission of the HARQ-ACK are allowed within one slot. In other aspects, a radio communication method, a base station, and a system are also disclosed.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: April 30, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Hiroki Harada, Satoshi Nagata
  • Publication number: 20240137186
    Abstract: A terminal is disclosed including a receiver that receives information including multiple spatial relation information; and a processor that controls transmission of channel state information using first spatial relation information that corresponds to a first transmission and reception point among the multiple spatial relation information, on a first repetition of multiple repetitions of an uplink shared channel, and controls transmission of the channel state information using second spatial relation information that corresponds to a second transmission and reception point among the multiple spatial relation information, on a second repetition of the multiple repetitions of the uplink shared channel. In other aspects, a communication method, a base station, and a system are also disclosed.
    Type: Application
    Filed: December 11, 2023
    Publication date: April 25, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Patent number: 11968139
    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 controls reception processing of the downlink shared channel based on at least one of cells that respectively transmit first downlink control information channel and second downlink control information, cells that respectively transmit the second downlink control information and the CSI reference signal, and resources that are indicated respectively by the first downlink control information and the second downlink control information, the first downlink control information being used to schedule the downlink shared channel, and the second downlink control information being used to trigger the CSI reference signal.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: April 23, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Shohei Yoshioka, Kazuki Takeda, Satoshi Nagata
  • Patent number: 11963135
    Abstract: There is provided user equipment of a radio communication system that supports TTIs having a plurality of lengths and that includes a base station and the user equipment, the user equipment including an acquisition unit configured to acquire, from the base station, information indicating a plurality of UL resources which are allocated to a plurality of symbols included in a TTI having a predetermined length and with which a scheduling request can be transmitted; and a transmission unit configured to select a UL resource from the plurality of UL resources and transmit the scheduling request to the base station with the selected UL resource.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: April 16, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Shinpei Yasukawa, Kazuki Takeda, Satoshi Nagata
  • 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
  • Patent number: 11930501
    Abstract: The present invention is designed to realize appropriate communication in next generation communication systems. a control section that controls communication by using a radio frame that includes a plurality of transmission time intervals (TTIs), in which the downlink and the uplink can be switched, and a given TTI, which is for DL transmission and which is configured in a given cycle, and a receiving section that receives a synchronization signal and a broadcast signal in the given TTI are provided.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: March 12, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Kazuki Takeda, Yoshihisa Kishiyama, Satoshi Nagata
  • Patent number: 11930502
    Abstract: A terminal is disclosed including a receiver that monitors downlink control channel candidates in a predetermined frequency bandwidth out of a plurality of frequency bandwidths; and a processor that performs a control to change the predetermined frequency bandwidth in accordance with a predetermined timer. In another aspect, a radio communication method is also disclosed.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: March 12, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Kazuaki Takeda, Satoshi Nagata, Qin Mu, Lihui Wang
  • Patent number: 11924139
    Abstract: In order to properly transmit UCI, even when PUCCH repetition transmission is used in future radio communication systems, a user terminal according to one aspect of the present disclosure includes a control section that determines a codebook for physical uplink control channel (PUCCH) transmission per slot, based on at least one of physical downlink shared channel (PDSCH) candidate occasions, a timing of hybrid automatic repeat request acknowledgement (HARQ-ACK) transmission corresponding to a received PDSCH and a PUCCH repetition factor, when PUCCH repetition transmission and a semi-static HARQ-ACK codebook are configured; and a transmitting section that transmits HARQ-ACK based on the codebook by applying the PUCCH repetition transmission.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 5, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Shaozhen Guo, Xiaolin Hou
  • Publication number: 20230312035
    Abstract: A turn signal switch according to the present invention includes: an operation lever that can be operated to swing along a first operation direction, operated in a pushing operation direction, and operated in a second operation direction that is linear and different from both the first operation direction and the pushing operation direction; and a contact part that switches between a conduction state and a non-conduction state in accordance with the operation. The operation lever is configured to, after one end of the operation lever is operated to swing along the first operation direction or operated in the pushing operation direction, be returned to a neutral position at which the operation lever is held when not operated and, when the one end of the operation lever is operated in the second operation direction, be held at a position at time of the operation.
    Type: Application
    Filed: March 24, 2023
    Publication date: October 5, 2023
    Applicant: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Kazuyoshi YAMAMOTO, Kazuki NAGATA
  • Publication number: 20230311748
    Abstract: A turn signal switch device that can immediately execute a function different from blinking of a turn signal, and prevent an erroneous operation. The turn signal switch device includes an operation knob configured to be swing-operable along an extending direction of a handlebar, and operable in a direction vertical to the swing direction and extending toward an upper side of a vehicle, in which, if the operation knob is operated in the rising direction, the turn signal executes a lighting mode different from blinking of the turn signal that is performed by the swing operation, and after the operation knob is operated in the swing direction, tor the rising direction, the operation knob returns to a neutral position at which the operation knob is held at a non-operated timing of the operation knob.
    Type: Application
    Filed: March 27, 2023
    Publication date: October 5, 2023
    Inventors: Kazuyoshi YAMAMOTO, Kazuki NAGATA