Patents Assigned to NTT Docomo
  • Publication number: 20250183960
    Abstract: A terminal includes: a reception unit configured to receive a reference signal of channel state information in downlink; a control unit configured to expect that a synchronization signal is to be transmitted or is not to be transmitted in a bandwidth part in an RRC connected state; and a transmission unit configured to transmit terminal capability information related to measurement based on the reference signal of the channel state information in a case where the control unit expects that the synchronization signal is not to be transmitted in the bandwidth part in the RRC connected state.
    Type: Application
    Filed: February 14, 2022
    Publication date: June 5, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Mayuko Okano, Shinya Kumagai
  • Publication number: 20250183979
    Abstract: This repeater comprises: a reception unit that receives a plurality of beams from a base station; and a control unit that determines a terminal-oriented beam on the basis of beam information of the repeater included in each of the time units of a received beam and associated with each of the beams from the repeater.
    Type: Application
    Filed: March 11, 2022
    Publication date: June 5, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Daisuke Kurita, Hiroki Harada, Weiqi Sun, Jing Wang, Lan Chen
  • Patent number: 12323967
    Abstract: A terminal according to an aspect of the present disclosure includes a control section that assumes a certain restriction being applied to a communication supporting a subcarrier spacing wider than a certain subcarrier spacing, and a transmitting/receiving section that performs transmission/reception processing of the communication based on the certain restriction. According to an aspect of the present disclosure, it is possible to suitably suppress adverse influence of a time taken for communication switching even when a relatively wide subcarrier spacing is used.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: June 3, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Yuki Matsumura, Hiroki Harada, Satoshi Nagata, Lihui Wang
  • Patent number: 12323993
    Abstract: A terminal includes a receiver that receives configuration information transmitted from a base station in a high frequency band higher than or equal to a frequency band of a Frequency Range 2 (FR2) in a frequency range a New Radio (NR) system formed of a Frequency Range 1 (FR1), which is a low frequency range, and the FR2, which is a high frequency range; and a controller that modifies, based on the configuration information, an interpretation of at least one of a counter DAI and a total DAI in a Downlink Assignment Indicator (DAI) included in control information to be received from the base station.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: June 3, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shohei Yoshioka, Shinya Kumagai, Satoshi Nagata
  • Patent number: 12323952
    Abstract: A user equipment includes a control unit that sets an operation mode of the user equipment to an idle mode; and a transmission unit that transmits, while a time alignment retained by the control unit is valid, information indicating presence of the user equipment on each of transmission resources with a predetermined frequency in a time direction, from among a plurality of transmission resources that is preconfigured for transmitting data in the idle mode and arranged in the time direction, wherein the transmission unit stops transmitting the information indicating the presence of the user equipment in response detecting that the time alignment is invalid.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: June 3, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Daiki Takeda, Kazuaki Takeda, Takayuki Isogawa, Tomoya Ohara
  • Patent number: 12323821
    Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives information relating to an uplink signal; and a control section that uses, when medium access control (MAC) control element (CE) is indicated and the information satisfies an applicable condition, a specific spatial relation based on the MAC CE for transmitting the uplink signal instead of a spatial relation indicated for the uplink signal. According to an aspect of the present disclosure, QCL parameters can be appropriately determined.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: June 3, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Shaozhen Guo
  • Publication number: 20250176044
    Abstract: A terminal includes: a transmission unit configured to perform transmissions to a first terminal by applying different beams to a plurality of first signals including a synchronization signal and a broadcast channel; a reception unit configured to receive a second signal corresponding to at least one of the plurality of first signals from the first terminal by using information related to a beam that is applied to the at least one of the first beams; and a control unit configured to establish an RRC (Radio Resource Control) connection with the first terminal by using the second signal. In a case where there is an overlap between the second signal and a third signal at least in a time domain, the control unit determines which of the second signal or the third signal is to be prioritized to be received or transmitted.
    Type: Application
    Filed: March 8, 2022
    Publication date: May 29, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Naoya Shibaike, Satoshi Nagata
  • Patent number: 12317098
    Abstract: A user terminal according to one aspect of the present disclosure includes: a transmitting section that transmits information that indicates which beam correspondence that uses which downlink reference signal is supported; a receiving section that receives spatial relation information that indicates a downlink reference signal having a spatial relation with a sounding reference signal; and a control section that determines a spatial domain filter used to transmit an uplink signal, based on a spatial domain filter used to receive the downlink reference signal.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 27, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuichi Kakishima, Yuki Matsumura, Takayuki Furuta, Yuta Oguma
  • Patent number: 12314678
    Abstract: An interaction assistance device 10 is configured to: calculate a first use degree representing a degree to which a function is used in accordance with the user speech in a first period for each function by referring to an interaction history DB (10a) storing an interaction history for each user including information representing a function corresponding to the user speech input by one or more users and information representing a time point at which the function was executed; determine a target function on the basis of the first use degree for each function; generate speech examples corresponding to the target function; and determine speech examples to be presented to the user from among the speech examples generated by the speech example generating unit (14).
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: May 27, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Asai, Hisashi Kurasawa, Yoshinori Isoda
  • Publication number: 20250168773
    Abstract: A terminal is disclosed including a receiver that receives, from a first transmission/reception point (TRP), downlink control information (DCI) including first configuration information related to a first transmission configuration indication state (TCI state), and receives, from a second TRP, a DCI including second configuration information related to a second TCI state; and a processor that performs, simultaneously, transmission to the first TRP based on the first configuration information with transmission to the second TRP based on the second configuration information. In other aspects, a radio communication method and a system are also disclosed.
    Type: Application
    Filed: January 21, 2025
    Publication date: May 22, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jin Wang, Shaozhen Guo, Xiaolin Hou
  • Publication number: 20250167967
    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.
    Type: Application
    Filed: February 10, 2023
    Publication date: May 22, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata
  • Publication number: 20250168858
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives an indication of one or more active transmission configuration indication (TCI) states, and a control section that controls, based on the number of the one or more active TCI states and a physical cell ID (PCI) associated with one TCI state of the one or more active TCI states, reception of a first downlink channel for at least one of paging, a short message, and system information. The first downlink channel is present in a control resource set with index 0. According to one aspect of the present disclosure, it is possible to appropriately perform communication even when communication is performed by using a plurality of transmission points.
    Type: Application
    Filed: February 10, 2023
    Publication date: May 22, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata
  • Publication number: 20250167955
    Abstract: A terminal according to an aspect of the present disclosure includes a control section that performs at least one of a use of more than eight DMRS ports for a demodulation reference signal (DMRS) configuration type 1 and a use of more than 12 DMRS ports for a DMRS configuration type 2, and a transmitting section that transmits DMRSs for a physical uplink control channel using the DMRS ports. According to an aspect of the present disclosure, the suitable number of DMRS ports can be used.
    Type: Application
    Filed: February 3, 2022
    Publication date: May 22, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Naoya Shibaike, Satoshi Nagata, Jing Wang
  • Publication number: 20250168777
    Abstract: A user equipment (UE), as disclosed, includes: a processor that identifies that a plurality of groups of transmission precoding matrix indicator (TPMI) include a group including a TPMI for Rank 3 and multiple TPMIs for Rank 2, and that a combination of some columns of a plurality of columns constituting a precoding matrix corresponding to the TPMI for Rank 3 and another combination of columns that is different from the combination of the some columns correspond respectively to combinations of columns constituting precoding matrices corresponding to the multiple TPMIs for Rank 2; and a transmitter that transmits, based on the identification, UE capability information corresponding to a TPMI group that provides uplink (UL) full power for partial-coherent UE by using four antenna ports, to a base station. In other aspects, a radio communication method, a base station, and a system are also disclosed.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Nadisanka Rupasinghe, Masaya Okamura, Yuki Matsumura, Satoshi Nagata
  • Publication number: 20250159657
    Abstract: A terminal includes: a transmitting part configured to transmit a signal to another terminal; a receiving part configured to receive a plurality of information items from the another terminal, the plurality of information items being related to at least one of a resource set preferred for a transmission or a resource set non-preferred for the transmission in a resource pool; and a control part configured to select a resource for the transmission, from the resource pool, based at least on a part of the plurality of information items.
    Type: Application
    Filed: February 18, 2022
    Publication date: May 15, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata
  • Publication number: 20250158868
    Abstract: The present disclosure provides an electronic device, including an input unit configured to obtain a first sequence including Q elements, the Q being an integer greater than 0; a control unit configured to perform a zero-padding operation and a discrete Fourier transformation spreading operation on the first sequence to determine an extension sequence, and perform a double-side data deletion operation based on the extension sequence to determine a second sequence, wherein the second sequence includes M elements, the M being an integer greater than 0.
    Type: Application
    Filed: March 10, 2022
    Publication date: May 15, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Juan Liu, Wenjia Lui, Xiaolin Hou, Lan Chen
  • Publication number: 20250155259
    Abstract: A congestion degree search system is a system that searches for, for a target of a degree of congestion that is a location or a transportation means, a degree of congestion of the target when people change their behavior in response to information according to the degree of congestion being presented, and includes: an estimation unit that estimates the degree of congestion of the target under conditions in which information according to the degree of congestion set in advance for the target is presented to people who act; and a search unit that sets a degree of congestion used in estimation, causes the estimation unit to repeatedly estimate the degree of congestion, and searches for the degree of congestion of the target so that the difference between the degree of congestion used in the estimation and the estimated degree of congestion decreases.
    Type: Application
    Filed: February 8, 2023
    Publication date: May 15, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yusuke NAKAMURA, Takashi SUZUKI, Akira YAMADA
  • Publication number: 20250159693
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a Medium Access Control (MAC) control element (CE) for indicating activation of a plurality of transmission configuration indication (TCI) states applicable to a plurality of types of channels, and a control section that judges, based on a first field and a second field included in the MAC CE, which of a first downlink (DL) TCI state, a first uplink (UL) TCI state, a first common TCI state common to DL and UL, a second DL TCI state, a second UL TCI state, or a second common TCI state common to DL and UL one or more TCI state ID fields included in the MAC CE indicate. According to one aspect of the present disclosure, it is possible to appropriately perform TCI state indication.
    Type: Application
    Filed: January 7, 2022
    Publication date: May 15, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun
  • Publication number: 20250159625
    Abstract: A terminal includes: a control unit configured to perform synchronization based on a first carrier in a device to device direct communication to which carrier aggregation is applied; and a communication unit configured to perform transmission and reception by using the first carrier and a second carrier that is different from the first carrier, based on the synchronization. The control unit determines a configuration of the second carrier, based on information that is obtained in the first carrier.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 15, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Naoya Shibaike, Satoshi Nagata
  • Publication number: 20250157216
    Abstract: A video manual generation apparatus includes an acquirer configured to acquire: an input-video data set indicative of contents of a task including one or more procedures, and one or more input-procedure-text data sets in one-to-one correspondence with the one or more procedures, an identifier configured to use a task trained model to identify a procedure corresponding to a frame that is any one of a plurality of frames of the input-video data set from among the one or more procedures, the task trained model being trained to learn a relationship between first information and second information, the first information being constituted of a video and one or more texts, the video representing the contents of the task constituted of the one or more procedures, the one or more texts being in one-to-one correspondence with the one or more procedures, the second information indicating a procedure corresponding to a frame that is any one of a plurality of frames of the video among the one or more procedures; and a vid
    Type: Application
    Filed: March 24, 2023
    Publication date: May 15, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Nobutaka MATSUSHIMA, Yuuichi MIZUKOSHI