Patents Assigned to NTT DoCoMo, Inc.
  • Publication number: 20250097909
    Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives configuration information including one or more of time resource configurations and/or frequency resource configurations; and a control section that determines, based on the configuration information and an ID related to a Public Land Mobile Network (PLMN), at least one of a time resource and a frequency resource to be used for at least one of a downlink signal and an uplink signal. An aspect of the present disclosure allows operation of communication to be flexibly performed between operators.
    Type: Application
    Filed: January 17, 2022
    Publication date: March 20, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Mayuko Okano, Hiroki Harada, Satoshi Nagata
  • Publication number: 20250097917
    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.
    Type: Application
    Filed: January 14, 2022
    Publication date: March 20, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Daisuke Kurita, Mayuko Okano, Kousuke Shima, Masaya Okamura, Tomoya Ohara
  • Publication number: 20250097719
    Abstract: A terminal includes: a communication unit configured to perform transmission and reception in a first RAT (Radio Access Technology) and to perform sensing in a second RAT; and a control unit configured to control communications in the first RAT. The communication unit receives information related to a first resource reservation by another terminal in the first RAT, the communication unit detects information related to a second resource reservation by another terminal in the second RAT, the control unit determines a set of resources based on a result of performing, based on information related to the first resource reservation, resource exclusion from available resource candidates in the first RAT in a physical layer, and selects a resource from the set of resources based on the information related to the second resource reservation in a MAC (Medium Access Control) layer, and the communication unit performs transmission to another terminal by using the selected resource.
    Type: Application
    Filed: January 19, 2022
    Publication date: March 20, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Naoya Shibaike, Satoshi Nagata
  • Publication number: 20250097981
    Abstract: A terminal according to one aspect of the present disclosure includes: a transmitting section that transmits a message in a random access procedure in a physical uplink shared channel; and a control section that controls a plurality of repetitions of at least one of reception of a downlink channel for scheduling the physical uplink shared channel and transmission of a channel the physical uplink shared channel. According to one aspect of the present disclosure, coverage can be improved by taking account of overhead.
    Type: Application
    Filed: July 30, 2021
    Publication date: March 20, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Haruhi Echigo, Hiroki Harada, Naoya Shibaike, Satoshi Nagata
  • Patent number: 12256336
    Abstract: A terminal according to an aspect of the present disclosure includes a receiving section that receives a pathloss reference signal, and a control section that calculates a pathloss for transmission power control on the basis of layer 1 (L1)-reference signal received power (RSRP) for the pathloss reference signal when the pathloss reference signal is updated by a media access control-control element (MAC CE), and a measurement condition is met. According to an aspect of the present disclosure, the pathloss can be appropriately calculated.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: March 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Yuichi Kakishima, Satoshi Nagata
  • Patent number: 12255707
    Abstract: A terminal includes a reception unit configured to receive information associated with a signal transmitted to an apparatus other than the terminal, in MU-MIMO (MultiUser-Multiple Input Multiple Output) and a reference signal from a base station, a control unit configured to estimate interference from the signal transmitted to the apparatus other than the terminal to a signal transmitted to the terminal, based on the information associated with the signal transmitted to the apparatus other than the terminal and the reference signal, and a communication unit configured to suppress the interference and receive a data signal from the base station.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: March 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuichi Kakishima, Yuki Matsumura, Satoshi Nagata
  • Patent number: 12255746
    Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives downlink control information for releasing a plurality of semi-persistent schedulings (SPSs); and a control section that performs control of including a valid Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK) corresponding to the downlink control information at at least one of a plurality of positions of HARQ-ACKs corresponding to downlink shared channel (Physical Downlink Shared Channel (PDSCH)) reception of the plurality of SPSs in a semi-static HARQ-ACK codebook. According to an aspect of the present disclosure, the HARQ-ACK codebook can be appropriately determined even when joint SPS release is used.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: March 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Satoshi Nagata, Xiaohong Zhang, Shaozhen Guo, Lihui Wang, Xiaolin Hou
  • Patent number: 12256438
    Abstract: A terminal includes a receiver that receives an index specifying configuration information for transmitting a random access preamble; and a controller that configures, in response to the receiver receiving additional information that specifies a time domain resource for transmitting the random access preamble, the time domain resource specified by the additional information, the time domain resource being configured by replacing a time domain resource for transmitting the random access preamble included in the configuration information specified by the index with the time domain resource specified by the additional information.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: March 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Akihito Hanaki, Hiroki Harada, Tomoya Ohara
  • Patent number: 12255839
    Abstract: A user terminal has a control section that makes a determination of at least one of a band of monitoring for at least one of a reference signal and a downlink control channel, and operation of the monitoring, in a frequency band to which sensing of a channel is applied, based on at least one of notified configuration information and reported capability information, and a receiving section that performs the monitoring according to the determination. According to one aspect of the present disclosure, it is possible to perform proper communication in an unlicensed band.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: March 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Daisuke Murayama
  • Publication number: 20250089068
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives control information for mapping one or more TCI states to a codepoint of one transmission configuration indication (TCI) field and that receives one or more pieces of downlink control information (DCI) for indicating a first TCI state applicable to a plurality of types of first signals and a second TCI state applicable to a plurality of types of second signals, and a control section that applies the first TCI state to the first signals and that applies the second TCI state to the second signals, based on the control information and the codepoint of the TCI field included in the DCI.
    Type: Application
    Filed: January 7, 2022
    Publication date: March 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun
  • Publication number: 20250089061
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a Medium Access Control control element (MAC Control Element (CE)) including a field indicating a time period from a given timing until activation of a transmission configuration indication state (TCI state), and a control section that controls the activation of the TCI state based on the MAC CE. According to one aspect of the present disclosure, it is possible to implement suitable maintenance of communication quality.
    Type: Application
    Filed: August 5, 2021
    Publication date: March 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Haruhi Echigo, Hiroki Harada, Yuki Matsumura, Naoya Shibaike, Satoshi Nagata
  • Publication number: 20250089027
    Abstract: A terminal includes: a communication unit configured to perform communication with a base station that can perform transmission and reception using a same time and frequency resource based on configuration of an uplink resource and a downlink resource; and a control unit configured to control an operation of the communication unit based on a gap between a timing of uplink transmission performed in the uplink resource and a timing of downlink reception performed in the downlink resource.
    Type: Application
    Filed: January 14, 2022
    Publication date: March 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Masaya Okamura, Shinya Kumagai, Shohei Yoshioka, Yuki Takahashi, Mayuko Okano
  • Publication number: 20250089079
    Abstract: A terminal includes: a reception unit configured to receive control information using a downlink; a control unit configured to perform monitoring of the control information for each of a plurality of slots; and a transmission unit configured to transmit, using uplink, terminal capability information that indicates whether or not, to support scheduling of a plurality of downlink signals by a single control information, the terminal capability information being specified in accordance with a number of the plurality of slots.
    Type: Application
    Filed: January 11, 2022
    Publication date: March 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Mayuko Okano, Naoya Shibaike, Hiroki Harada
  • Publication number: 20250088331
    Abstract: A terminal includes: a transmission unit configured to transmit, in uplink, a reference signal for positioning; and a control unit configured to assume that resources of the reference signal for positioning are to be non-contiguously allocated.
    Type: Application
    Filed: January 27, 2022
    Publication date: March 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Masaya Okamura, Tomoya Ohara, Kousuke Shima, Hiroki Harada, Daisuke Kurita, Mayuko Okano
  • Publication number: 20250089065
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a configuration indicating that disabling or enabling of a transform precoder for a physical downlink shared channel (PUSCH) is dynamically switched by at least one of downlink control information (DCI) and a Medium Access Control Control Element (MAC CE), and a control section that uses, as a period from reception of the DCI until transmission of the PUSCH, a second period longer than a first period in a case where the waveform is not switched. According to one aspect of the present disclosure, it is possible to easily perform switching of a waveform.
    Type: Application
    Filed: August 4, 2021
    Publication date: March 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Akihito Hanaki, Tianyang Min, Keisuke Saito, Hidekazu Shimodaira, Satoshi Nagata
  • Patent number: 12248758
    Abstract: A generation device is a device that generates a translated sentence in a second language from an input sentence in a first language to be translated. The generation device includes: an acquisition unit that acquires the input sentence; a normalization unit that converts the input sentence into a normalized sentence that is a grammatically correct sentence in the first language; and a first translation unit that generates the translated sentence by translating the normalized sentence into the second language using first parallel translation data that is parallel translation data between the first language and the second language. The normalization unit generates the normalized sentence by using second parallel translation data that is parallel translation data between a third language and the first language. A data amount of the second parallel translation data is larger than a data amount of the first parallel translation data.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: March 11, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Toshimitsu Nakamura, Noritaka Okamoto, Wataru Uchida, Yoshinori Isoda
  • Patent number: 12250692
    Abstract: The included are a control unit that determines a configuration for a transmission of a scheduling request based on whether the scheduling request is for a communication between a base station apparatus and the user equipment or the scheduling request is for a communication between the user equipment and another user equipment; a transmitting unit that transmits the scheduling request by using the configuration for the transmission of the determined scheduling request; and a receiving unit that receives a scheduling grant based on the scheduling request.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: March 11, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata, Huan Wang
  • Patent number: 12250048
    Abstract: A terminal includes a control unit that determines a spatial reception parameter of a control channel based on Quasi-co-location (QCL) information on a synchronization signal or a reference signal; and a receiving unit that receives the control channel based on the determined spatial reception parameter, wherein, when Beam Failure Recovery (BFR) is performed by applying a contention-based random access procedure, the control unit assumes a QCL parameter associated with a Synchronization Signal Block (SSB) detected in the contention-based random access procedure to select a random access preamble, as a QCL parameter for monitoring a downlink control channel in a search space.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: March 11, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Kazuki Takeda, Yuuki Matsumura
  • Patent number: 12250681
    Abstract: A terminal includes a control unit that calculates a size of a transport block (TBS) to be transmitted on a Physical Sidelink Shared Channel (PSSCH) by applying a TBS determination method in a case where a Physical Sidelink Control Channel (PSCCH) and the PSSCH are to be frequency division multiplexed in a portion of a time resource of the PSSCH; and a transmitting unit that transmits the PSCCH and the PSSCH.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: March 11, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata
  • Patent number: 12250649
    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, based on the received synchronization signal block, an index of a candidate position for a transmission corresponding to the received synchronization signal block, from among candidate positions for transmitting a synchronization signal block, the number of the candidate positions being greater than a predetermined number.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: March 11, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata, Jing Wang