Patents Assigned to NTT Docomo
  • TRANSMITTING DEVICE, RECEIVING DEVICE AND RECEIVING METHOD
    Publication number: 20250047548
    Abstract: The present disclosure provides a transmitting device, a receiving device and a receiving method. The receiving device includes: a receiving unit configured to receive information about a modulation parameter indicating a spiral factor; a control unit configured to determine pseudo-N-order first type of modulation according to the modulation parameter, wherein 2{circumflex over (?)}N first symbols of the pseudo-N-order first type of modulation correspond to a part of 2{circumflex over (?)}M second symbols of M-order second type of modulation, and M and N are positive integers.
    Type: Application
    Filed: January 7, 2022
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Xiaorui Yan, Neng Ye, Xiangming Li, Wenjia Liu, Xiaolin Hou, Lan Chen, Jing Wang, Yoshihisa Kishiyama, Takahiro Asai
  • TERMINAL, BASE STATION, RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD
    Publication number: 20250048356
    Abstract: A terminal includes: a transmission unit that transmits feedback of an automatic repeat request; and a control unit assuming that when a bit string of the feedback and a resource of an uplink control channel are associated with each other and only a negative acknowledgment is fed back, an index of the resource indicates a correspondence relationship between a bit string of the feedback and the resource, in which an upper limit on the number of multiplexed bits of the feedback is configured by an upper layer parameter.
    Type: Application
    Filed: December 10, 2021
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei YOSHIOKA, Yuki MATSUMURA, Satoshi NAGATA
  • TRANSMITTING DEVICE, RECEIVING DEVICE, AND MODULATION METHOD
    Publication number: 20250047547
    Abstract: The present disclosure provides a transmitting device, a receiving device and a modulation method. The transmitting device includes: a receiving unit configured to obtain a bit sequence to be transmitted; a control unit configured to perform pseudo-N-order first type of modulation on the bit sequence to be transmitted, according to information about phase noise, wherein 2{circumflex over (?)}N first symbols of the pseudo-N-order first type of modulation correspond to a part of 2{circumflex over (?)}M second symbols of M-order second type of modulation, where M and N are positive integers.
    Type: Application
    Filed: January 7, 2022
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Xiaorui Yan, Neng Ye, Xiangming Li, Wenjia Liu, Xiaolin Hou, Lan Chen, Yoshihisa Kishiyama, Takahiro Asai
  • GARBAGE COLLECTION SYSTEM AND TRAINED MODEL
    Publication number: 20250045710
    Abstract: A garbage collection system (1) includes: a data acquisition unit (11) that acquires population change data for each district divided in advance and garbage amount record data for each district and each garbage type; and a garbage amount prediction unit (12) that predicts the amount of garbage in each district for each garbage type based on the population change data for each district and the garbage amount record data for each district and each garbage type that have been acquired by the data acquisition unit (11).
    Type: Application
    Filed: July 20, 2022
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiromasa KITAI, Hiroto AKATSUKA, Masayuki TERADA, Motoko SUZUKI, Takako KOMINATO
  • WIRELESS RELAY DEVICE AND COMMUNICATION METHOD
    Publication number: 20250048125
    Abstract: A wireless relay device includes: a reception unit configured to receive information indicating an activation or deactivation of a communication using relaying by a plurality of wireless relay devices from a base station, another wireless relay device, or a terminal; and a control unit configured to activate or deactivate a relaying function of the wireless relay device itself, based on the information indicating the activation or deactivation. The information indicating the activation or deactivation includes a number of hops in the communication.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Shinya Kumagai, Daisuke Kurita, Shohei Yoshioka, Haruhi Echigo, Satoshi Nagata
  • BASE STATION AND COMMUNICATION METHOD
    Publication number: 20250048122
    Abstract: A base station includes: a transmission unit configured to transmit signals that are associated with indexes and that include a synchronization signal and broadcast information to a plurality of wireless relay devices; and a control unit configured to control an operation related to transmission of the signals that are associated with the indexes. The control unit configures the signals that are associated with the indexes based on a number of the plurality of wireless relay devices.
    Type: Application
    Filed: December 20, 2021
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Shinya Kumagai, Daisuke Kurita, Shohei Yoshioka, Haruhi Echigo, Satoshi Nagata
  • TERMINAL AND COMMUNICATION METHOD
    Publication number: 20250048123
    Abstract: A terminal includes: a reception unit configured to receive a first signal to which a beam from a first wireless relay device is applied and a second signal to which a beam from a second wireless relay device is applied, the beam from the second wireless relay device being different from that for the first signal; and a control unit configured to determine whether or not to simultaneously receive the first signal and the second signal based on a condition.
    Type: Application
    Filed: December 20, 2021
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Shinya Kumagai, Daisuke Kurita, Shohei Yoshioka, Haruhi Echigo, Satoshi Nagata
  • TERMINAL, AND REPORTING METHOD
    Publication number: 20250048313
    Abstract: A terminal includes: a control unit configured to obtain a plurality of pieces of terminal position-related information using a plurality of reference points that are related to a non-terrestrial network; and a transmission unit configured to report the plurality of pieces of terminal position-related information to a base station.
    Type: Application
    Filed: December 10, 2021
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Daisuke Kurita, Satoshi Nagata, Luhua You, Weiqi Sun, Jing Wang, Lan Chen, Jinming Zhao, Yong Li
  • COMMUNICATION DEVICE, BASE STATION AND COMMUNICATION METHOD
    Publication number: 20250048126
    Abstract: A communication device includes: a communication unit configured to transmit or receive a downlink signal or an uplink signal; and a control unit configured to determine a default beam in a wireless communication. In a case where a beam to be applied to the downlink signal or the uplink signal is changed from the default beam, the control unit changes the beam to be applied to the downlink signal or the uplink signal back to the determined default beam.
    Type: Application
    Filed: December 10, 2021
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC
    Inventors: Haruhi Echigo, Shohei Yoshioka, Daisuke Kurita, Shinya Kumagai, Yuki Takahashi, Satoshi Nagata
  • WIRELESS RELAY DEVICE, BASE STATION AND WIRELESS RELAY METHOD
    Publication number: 20250047365
    Abstract: A wireless relay device includes: a communication unit configured to relay a downlink wireless signal and an uplink wireless signal: a reception unit configured to receive a signal including control information and identification information for identifying a transmission destination of a signal including the control information in downlink; and a control unit configured to decode the signal including the control information, based on the identification information and perform a control based on the control information.
    Type: Application
    Filed: December 10, 2021
    Publication date: February 6, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Haruhi Echigo, Shohei Yoshioka, Daisuke Kurita, Shinya Kumagai, Yuki Takahashi, Satoshi Nagata
  • Terminal and communication method
    Patent number: 12219523
    Abstract: A terminal includes a receiver that receives, from a base station, configuration information for at least one of a first activation signal or a second activation signal associated with a paging occasion; a controller that determines, based on the configuration information, a time/frequency domain position of resources on which the first activation signal or the second activation signal is allocated; and a communication unit that receives the first activation signal or the second activation signal on the resources and receives, from the base station, paging associated with the received first activation signal or second activation signal, wherein the controller determines the time/frequency domain position of the resources on which the first activation signal and the second activation signal is allocated, by associating the positions of the resources.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: February 4, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Daiki Takeda, Hiroki Harada
  • Terminal and communication method
    Patent number: 12219611
    Abstract: A terminal includes a reception unit that receives, from a base station, a set including a plurality of first resources that include at least a synchronization signal and optionally further include a broadcast channel, a control unit that determines which of the first resources included in the set is to be used based on a reception quality controlled for each of the first resources, and a communication unit that executes a random access procedure with the base station based on information included in the determined first resource.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 4, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Daiki Takeda, Tomoya Ohara, Hiroki Harada
  • Base station, radio communication method, and system
    Patent number: 12219660
    Abstract: A base station is disclosed that includes a transmitting and receiving circuit that transmits an RLM reference signal (RLM-RS) to a terminal. In Frequency Range 1 (FR1), when the RLM-RS is a synchronization signal block (SSB) and the terminal does not have a capability of simultaneous transmission or reception of data and an SSB with different numerologies, the transmitting and receiving circuit does not transmit or receive data on symbols of the RLM-RS, the data being with a different subcarrier spacing (SCS) than an SCS of the RLM-RS. In Frequency Range 2 (FR2), if the RLM-RS is a quasi-co-located reference signal with active transmission configuration indicator state (TCI-state), then the transmitting and receiving circuit can transmit or receive data on symbols of the RLM-RS. In other aspects, a radio communication method and a system are also disclosed.
    Type: Grant
    Filed: October 11, 2023
    Date of Patent: February 4, 2025
    Assignee: NTT DOCOMO, INC.
    Inventor: Hiroki Harada
  • Information distribution management device
    Patent number: 12217281
    Abstract: To provide an information distribution management device configured to analyze distribution in consideration of the number of unique users. An advertisement management device 100 includes a heat map generation unit 101configured to generate a heat map indicating the necessity of advertisement distribution to a designated target layer for each of a plurality of units of digital signage 300 and for each time slot, a reach curve generation unit 103 configured to function as a viewing estimation unit that estimates the viewing frequency of unique users of the target layer for the digital signage 300to which the heat map is applied, and an evaluation unit 104 configured to evaluate the heat map on the basis of the number of viewers who are unique users of the target layer (equivalent to viewing frequency) and the total number of viewers who are all users to whom the heat map is applied (viewing frequency).
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: February 4, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Tomohiro Nakagawa, Kazuma Nozawa, Kazuya Sasaki
  • Terminal for improved scheduling performance
    Patent number: 12219551
    Abstract: This user terminal is provided with: a control unit for determining information related to the time of a measured value, which satisfies a predetermined requirement, from among a plurality of measured values that have been obtained in accordance with an instruction for measurement pertaining to a radio resource; and a transmission unit for transmitting the information related to the time that has been determined.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: February 4, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata
  • User terminal utilizing high frequency band and monitoring interval based on said frequency band
    Patent number: 12219533
    Abstract: A user terminal, when using a high frequency band having a frequency higher than a certain frequency band including one or a plurality of frequency ranges, increases number of symbols constituting one slot. The user terminal transmits and receives signals by using the slot with the increased number of symbols.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: February 4, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shohei Yoshioka, Satoshi Nagata
  • Terminal and radio communication method
    Patent number: 12219369
    Abstract: A terminal includes a control section that determines, when a spatial relation for specific UL transmission is not configured, one specific spatial relation between a quasi-co-location (QCL) parameter related to a latest slot for a start symbol for the specific UL transmission or a first or last symbol for DL transmission corresponding to the specific UL transmission and a transmission configuration indication (TCI) state or a reference signal for path loss reference in a case where only one transmission configuration indication (TCI) state is activated for the specific DL transmission, and a transmitting section that performs the specific UL transmission in accordance with the specific spatial relation.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: February 4, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata
  • TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION
    Publication number: 20250039874
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives a downlink control channel, and a control section that judges, based on the presence or absence of configuration or support of scheduling of a plurality of downlink shared channels in a plurality of transmission/reception points using downlink control information provided by the downlink control channel, at least one of a transmission configuration indication (TCI state) indicated by the downlink control information and a TCI state corresponding to a downlink shared channel scheduled by the downlink control information.
    Type: Application
    Filed: September 30, 2021
    Publication date: January 30, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Nagoya Shibaike, Satoshi Nagata, Weiqi Sun, Jing Wang, Qiping Pi, Lan Chen
  • WIRELESS RELAY DEVICE AND COMMUNICATION METHOD
    Publication number: 20250039685
    Abstract: A wireless relay device includes: a reception unit configured to receive a signal that is associated with an index and that includes a synchronization signal and broadcast information from a base station or a first wireless relay device; and a transmission unit configured to transmit the signal that is associated with the index to a second wireless relay device or a terminal. The reception unit receives first information for transmitting the signal that is associated with the index from the base station or the first wireless relay device, and the transmission unit transmits the signal that is associated with the index and the first information to the second wireless relay device or the terminal based on the first information.
    Type: Application
    Filed: December 22, 2021
    Publication date: January 30, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Shinya Kumagai, Daisuke Kurita, Shohei Yoshioka, Haruhi Echigo, Satoshi Nagata
  • TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION
    Publication number: 20250039917
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives configuration information related to a control resource set in a downlink bandwidth part, and a control section that determines, based on a plurality of transmission configuration indication (TCI) states corresponding to a specific control resource set based on the configuration information, at least one of a plurality of spatial relations and a plurality of pathloss reference signals to be applied to a plurality of repetition transmissions of a physical uplink control channel (PUCCH). According to one aspect of the present disclosure, it is possible to appropriately control operation related to a default TCI state/spatial relation/pathloss reference signal.
    Type: Application
    Filed: September 30, 2021
    Publication date: January 30, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen