Patents Assigned to NTT Docomo
  • Terminal and communication method for identifying a resource for a response
    Patent number: 12237958
    Abstract: A terminal includes a reception unit configured to receive data from another terminal, a control unit configured to identify, based on a pair of cyclic shifts, a resource in which a channel is arranged, the channel being used for transmitting and receiving a response related to a retransmission control corresponding to the data, and a transmission unit configured to transmit the response related to the retransmission control corresponding to the data using the identified resource. The pair of the cyclic shifts or an index given to the pair of cyclic shifts is determined based on a phase rotation.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: February 25, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata
  • Terminal and communication method
    Patent number: 12237925
    Abstract: A terminal includes a receiver that receives a plurality of radio signals transmitted via a sidelink; a controller that selects an operation pattern for Hybrid Automatic Repeat Request (HARQ) feedback for the plurality of radio signals based on a specific condition; and a transmitter that transmits sidelink HARQ feedback information in accordance with the selected operation pattern for the HARQ feedback.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: February 25, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata
  • User apparatus and base station apparatus
    Patent number: 12238694
    Abstract: A user apparatus includes a reception unit configured to receive information specifying a BWP (Bandwidth part) from a base station apparatus, a control unit configured to configure the BWP by determining a parameter to be applied from a predetermined cell-common parameter and a predetermined user-apparatus-specific parameter that are included in the information specifying the BWP, and a communication unit configured to communicate with the base station apparatus by using the configured BWP, wherein the predetermined parameters are information items indicating a lowest usable subcarrier of the BWP.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: February 25, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Yousuke Sano
  • TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION
    Publication number: 20250063604
    Abstract: A terminal according to one aspect of the present disclosure includes a transmitting section that transmits a plurality of repetitions of a physical random access channel by using a plurality of different beams, and a control section that determines a reference beam corresponding to one of the plurality of different beams and that determines, on the basis of reception of a response to the physical random access channel, a subsequent uplink beam, the reception using the reference beam. According to one aspect of the present disclosure, it is possible to improve coverage in a random access procedure.
    Type: Application
    Filed: December 24, 2021
    Publication date: February 20, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Naoya Shibaike, Satoshi Nagata, Jing Wang, Qiping Pi, Lan Chen
  • Terminal, radio communication method, and base station
    Patent number: 12231203
    Abstract: A terminal according to an aspect of the present disclosure includes a control section that determines activation or deactivation for a panel, and a transmitting section that transmits a report related to determined activation or deactivation for the panel by including the report in at least one of channel state information and MAC control information (MAC CE).
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: February 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Shaozhen Guo, Jing Wang, Xiaolin Hou
  • Terminal and radio communication method
    Patent number: 12232136
    Abstract: A terminal includes a receiving section configured to receive downlink control information that schedules or triggers a specific signal, and a control section configured to use different quasi-co-location (QCL) parameters for the specific signal between a case where the specific signal is started within a first period for decoding the downlink control information and a case where the specific signal is started within a second period after the first period.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: February 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata
  • Traffic amount estimation system
    Patent number: 12231988
    Abstract: A traffic amount estimation system is a traffic amount estimation system that estimates a traffic amount of people in a predetermined time frame in an area that is an estimation target set in advance, the traffic amount estimation system including: a population information acquiring unit configured to acquire population information representing a population at a predetermined timing in the area that is the estimation target; a movement state information acquiring unit configured to acquire movement state information representing a movement state of each of a plurality of people in the area that is the estimation target; and an estimation unit configured to group the movement state information in accordance with moving directions represented by the movement state information and estimate the traffic amount on the basis of the grouped movement state information and the population information.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: February 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Takuya Doumen, Tomohiro Nakagawa, Kazuya Sasaki
  • User apparatus and base station apparatus
    Patent number: 12232175
    Abstract: A user apparatus includes a transmission unit for transmitting a signal related to a random access procedure in a serving cell; a reception unit for receiving a signal related to the random access procedure in the serving cell; and a control unit for determining a carrier to be used for the random access procedure, the carrier being configured to the serving cell. The control unit determines whether a first carrier is configured to the serving cell, determines whether the first carrier of the serving cell is supported when the first carrier is configured to the serving cell, and determines to use the first carrier for the random access procedure when the first carrier of the serving cell is supported. An operation of determining the carrier to be used for the random access procedure is performed in at least one of a MAC layer and an RRC layer.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: February 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Tooru Uchino
  • Terminal and communication method
    Patent number: 12232052
    Abstract: A terminal includes a receiving unit that receives P-Max that is configuration information of maximum transmit power in a cell in Frequency Range 2 (FR2) among Frequency Range 1 (FR1) and the FR2; and a control unit that performs, when the P-Max of the cell in the FR2 is not supported, an operation of ignoring the P-Max of the cell in the FR2 or an operation of considering the cell in the FR2 as a barred cell.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: February 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Hiromasa Umeda
  • Terminal and uplink transmission method
    Patent number: 12232046
    Abstract: A terminal including: a control unit configured to compare a power reduction total value that is reduced from a maximum transmission power value determined based on a power class and that does not include a power reduction value for adjusting the power class with a predetermined value, and to calculate a lower limit value of a maximum transmission power by setting the power reduction value for adjusting the power class as 0 dB when the power reduction total value is greater than the predetermined value; and a transmission unit configured to perform uplink transmission using a maximum transmission power value equal to or greater than the lower limit value.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: February 18, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiromasa Umeda, Yuta Oguma
  • TERMINAL, RADIO COMMUNICATION METHOD, AND BASE STATION
    Publication number: 20250055740
    Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives one or more reference signal configurations, and a control section that controls, based on at least one of information related to a reference signal and a specific condition, application of at least one reference signal configuration of the reference signal configurations. According to one aspect of the present disclosure, it is possible to implement suitable RS resource use.
    Type: Application
    Filed: December 16, 2021
    Publication date: February 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Haruhi Echigo, Yuki Matsumura, Naoya Shibaike, Hiroki Harada
  • TRANSMITTING DEVICE AND RECEIVING DEVICE
    Publication number: 20250055594
    Abstract: The present disclosure provides a transmitting device and a receiving device. The transmitting device includes: a receiving unit configured to obtain a bit sequence to be transmitted; a control unit configured to determine a modulation and coding strategy (MCS) index according to information about phase noise; and a transmitting unit configured to transmit information about the MCS index.
    Type: Application
    Filed: January 7, 2022
    Publication date: February 13, 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, RADIO COMMUNICATION METHOD, AND SYSTEM
    Publication number: 20250055622
    Abstract: A terminal is disclosed and includes a processor that generates at least one channel state information (CSI) report including a plurality of CSI sub-reports, and a transmitter that transmits the at least one CSI report. The processor determines allocations of the plurality of the CSI sub-reports in the CSI report according to IDs of the plurality of the CSI sub-reports. In other aspects, a radio communication method and a system are also disclosed.
    Type: Application
    Filed: October 21, 2024
    Publication date: February 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Wenjia Liu, Jing Wang, Xiaolin Hou
  • TERMINAL, RADIO COMMUNICATION METHOD, AND SYSTEM
    Publication number: 20250055543
    Abstract: A terminal is disclosed including a processor that generates at least one of channel state information (CSI) report including a plurality of CSI sub-reports; and a transmitter that transmits the at least one of the CSI report, wherein the processor determines allocations of the plurality of the CSI sub-reports in the CSI report according to IDs of the plurality of the CSI sub-reports, wherein a priority of the CSI sub-report is determined according to the IDs of the plurality of the CSI sub-reports. In other aspects, a radio communication method and a system are also disclosed.
    Type: Application
    Filed: October 30, 2024
    Publication date: February 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata, Wenjia Liu, Jing Wang, Xiaolin Hou
  • WIRELESS RELAY DEVICE, COMMUNICATION DEVICE AND WIRELESS RELAY METHOD
    Publication number: 20250056430
    Abstract: A wireless relay device includes: a communication unit configured to relay a downlink wireless signal or an uplink wireless signal; a transmission unit configured to transmit information indicating a capability related to a relay of the downlink wireless signal or the uplink wireless signal; a reception unit configured to receive information indicating an amplification value or transmission power after the relay in accordance with the capability related to the relay; and a control unit configured to perform a control of amplifying the downlink wireless signal or the uplink wireless signal to be relayed, based on the information indicating the amplification value or the transmission power after the relay.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 13, 2025
    Applicant: NTT DOCOMO, INC.
    Inventors: Haruhi Echigo, Shohei Yoshioka, Shinya Kumagai, Daisuke Kurita, Yuki Takahashi, Satoshi Nagata
  • Terminal and communication method for beam failure recovery
    Patent number: 12225392
    Abstract: A terminal includes a transmitter that transmits a random access preamble; a receiver that receives a random access response; and a controller that uses a spatial filter applied to the transmission of the random access preamble for a transmission of an uplink control signal, in a time interval after the receiver receives the random access response until the receiver receives configuration information of another spatial filter.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: February 11, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Yuki Matsumura
  • Terminal and communication method
    Patent number: 12225558
    Abstract: A terminal includes a reception unit that receives, from a base station, a first set including a plurality of resources that include at least a synchronization signal and optionally further include a broadcast channel and a second set including a plurality of resources that include at least a synchronization signal added to the first set in a frequency domain and optionally further include a broadcast channel, a control unit that assumes a Quasi co location (QCL) identical to a QCL assumed for the first set when receiving the second set, and a communication unit that executes a random access procedure with the base station based on information included in the resources.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 11, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Daiki Takeda, Tomoya Ohara, Hiroki Harada
  • Audio decoding device, audio encoding device, audio decoding method, audio encoding method, audio decoding program, and audio encoding program
    Patent number: 12223971
    Abstract: The purpose of the present invention is to reduce distortion a frequency band component encoded with a small number of bits in a time domain and improve quality. An audio decoding device (10) decodes an encoded audio signal and outputs the audio signal. A decoding unit (10a) decodes an encoded sequence containing an encoded audio signal and obtains a decoded signal. A selective temporal envelope shaping unit (10b) shapes a temporal envelope of a decoded signal in the frequency band on the basis of decoding related information concerning decoding of the encoded sequence.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: February 11, 2025
    Assignee: NTT DOCOMO, INC
    Inventors: Kei Kikuiri, Atsushi Yamaguchi
  • Terminal and radio communication method
    Patent number: 12225471
    Abstract: A terminal according to one aspect of the present disclosure includes: a control section that determines a reference signal for pathloss reference for a physical uplink shared channel (PUSCH), based on any one of reception of a medium access control control element (MAC CE) and transmission of a random access channel; and a transmitting section that transmits the PUSCH by using transmission power based on the reference signal for pathloss reference. According to one aspect of the present disclosure, a parameter for transmission power control can be appropriately determined.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: February 11, 2025
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagata
  • WIRELESS RELAY DEVICE AND COMMUNICATION METHOD
    Publication number: 20250048124
    Abstract: A wireless relay device includes: a reception unit configured to receive resources of a periodic signal and information related to a beam for each of the resources from a base station or a first wireless relay device; and a transmission unit configured to transmit the periodic signal to which a beam based on the information is applied to a second wireless relay device or a terminal. The transmission unit does not transmit the information related to a beam for each of the resources to the second wireless relay device that is not directly connected to the terminal.
    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