Patents by Inventor Shinya Kumagai

Shinya Kumagai 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).

  • Publication number: 20230254888
    Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives information related to a priority of a UL transmission; and a control section that controls, when a plurality of UL transmissions with different priorities overlap in a time domain, transmission processing of the plurality of UL transmissions, based on a carrier in which the plurality of UL transmissions is transmitted.
    Type: Application
    Filed: July 31, 2020
    Publication date: August 10, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Takahashi, Shinya Kumagai, Satoshi Nagata
  • Publication number: 20230247647
    Abstract: UE (200) receives downlink control information from the network. The UE (200) applies slot format indicated by the downlink control information to a plurality of component carriers.
    Type: Application
    Filed: March 24, 2020
    Publication date: August 3, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Hiroki Harada, Shohei Yoshioka, Yuki Takahashi, Satoshi Nagata
  • Publication number: 20230208603
    Abstract: The present disclosure provides a transmitting device, a receiving device, a method for transmitting interference information, and a method for channel access. The receiving device includes a processing unit configured to perform interference measurement on an unauthorized frequency band to obtain interference information; and a transmitting unit, configured to transmit the interference information to a transmitting device.
    Type: Application
    Filed: May 22, 2020
    Publication date: June 29, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Jing Wang, Xiaolin Hou, Lan Chen, Liu Liu, Yong Li, Tong Sha, Hiroki Harada, Shinya Kumagai
  • Publication number: 20230129299
    Abstract: A terminal includes a control unit that selects a transmission occasion to transmit a random access preamble and that configures a frequency bandwidth used for transmission or reception by the terminal by using a start position of a frequency bandwidth of the selected transmission occasion or a center position of the frequency bandwidth of the selected transmission occasion as a reference, so that the random access preamble is to be transmitted in the frequency bandwidth of the transmission occasion; and a transmission unit that transmits the random access preamble based on the frequency bandwidth configured by the control unit.
    Type: Application
    Filed: February 13, 2020
    Publication date: April 27, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomoya Ohara, Daiki Takeda, Shinya Kumagai
  • Publication number: 20230115619
    Abstract: A terminal according to an aspect of the present disclosure includes a receiving section that receives at least one of first information related to a size of a bandwidth used for reception of a DL signal and second information related to a position of the bandwidth, and a control section that controls reception of the DL signal, based on at least one of the first information and the second information. The size of the bandwidth is equal to or larger than a size of a bandwidth to which a synchronization signal block is mapped and smaller than a bandwidth size of a DL supported in Rel. 15.
    Type: Application
    Filed: January 27, 2020
    Publication date: April 13, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Satoshi Nagata, Hideaki Takahashi, Lihui Wang, Xiaohong Zhang
  • Publication number: 20230115027
    Abstract: Provided are zirconium phosphate particles, obtained by bringing ?-zirconium phosphate particles into contact with a basic liquid having a pH of 9 or higher and then further bringing the particles into contact with an acidic liquid having a pH of 6 or lower, or zirconium phosphate particles, in which, after leaving for 10 minutes from putting 10 mg of zirconium phosphate particles and 3 L of air that contains 1,000 ppm of an ammonia gas into a test bag at normal temperature and normal pressure, an ammonia gas reduction rate within the test bag that contains the zirconium phosphate particles is 50% or more.
    Type: Application
    Filed: March 4, 2021
    Publication date: April 13, 2023
    Inventors: Yoshinao YAMADA, Tatsuya SOGOU, Shinya KUMAGAI
  • Publication number: 20230109830
    Abstract: A UE receives downlink control information from a network and schedules a plurality of component carriers using the downlink control information. The UE applies information of a bandwidth part indicated by the downlink control information to the plurality of component carriers.
    Type: Application
    Filed: March 23, 2020
    Publication date: April 13, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shohei Yoshioka, Shinya Kumagai, Yuki Matsumura, Yuki Takahashi, Satoshi Nagata
  • Publication number: 20230107215
    Abstract: A terminal includes a reception unit configured to receive control information including information for allocating a plurality of uplink transmissions, from a base station, a control unit configured to identify a parameter applied to the plurality of uplinks, based on the control information, and a transmission unit configured to transmit the plurality of uplinks to the base station by applying the identified parameter to the plurality of uplinks.
    Type: Application
    Filed: February 19, 2021
    Publication date: April 6, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Hiroki Harada, Satoshi Nagata
  • Publication number: 20230104916
    Abstract: A terminal including: a reception unit configured to receive configuration information for use in a random access procedure from a base station apparatus; and a transmission unit configured to transmit information indicating an attribute of the terminal to the base station apparatus in the random access procedure based on the configuration information.
    Type: Application
    Filed: February 13, 2020
    Publication date: April 6, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomoya Ohara, Daiki Takeda, Shinya Kumagai
  • Publication number: 20230101239
    Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section configured to receive information on association between services and resources; and a transmitting section configured to perform transmission processing by using a resource that is included in the information on association and corresponds to a service to be used. According to one aspect of the present disclosure, when there are TRPs to which different services are applied, communication can be appropriately controlled.
    Type: Application
    Filed: October 11, 2019
    Publication date: March 30, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Hiroki Harada, Satoshi Nagata
  • Publication number: 20230102996
    Abstract: A UE receives downlink control information from a network and schedules a plurality of component carriers using the downlink control information. The UE applies information of transmission configuration indication indicated by the downlink control information to the plurality of component carriers.
    Type: Application
    Filed: March 23, 2020
    Publication date: March 30, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shohei Yoshioka, Shinya Kumagai, Yuki Matsumura, Yuki Takahashi, Satoshi Nagata
  • Publication number: 20230090144
    Abstract: A terminal includes a receiving unit that receives, from a base station, a plurality of signals for assigning a resource for an uplink transmission; a control unit that configures, upon receiving the plurality of signals, at least one of a channel access type for the uplink transmission or a CP extension value for the uplink transmission based on an index included in one or more signals of the plurality of signals; and a transmitting unit that executes the uplink transmission by applying the at least one of the configured channel access type or the configured CP extension value.
    Type: Application
    Filed: February 8, 2021
    Publication date: March 23, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Hiroki Harada, Satoshi Nagata
  • Publication number: 20230076250
    Abstract: A terminal includes a receiving unit that receives a transport block, and that receives, at a first timing at which a portion of the whole transport block is received, control information on another portion of the transport block to be received at a second timing after the first timing; and a transmitting unit that transmits feedback information on reception of the control information while the receiving unit receives the transport block.
    Type: Application
    Filed: February 7, 2020
    Publication date: March 9, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shohei Yoshioka, Shinya Kumagai, Daisuke Kurita, Satoshi Nagata
  • Publication number: 20230076328
    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: Application
    Filed: February 13, 2020
    Publication date: March 9, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shohei Yoshioka, Shinya Kumagai, Satoshi Nagata
  • Publication number: 20230071680
    Abstract: A terminal includes a communication unit configured to transmit and receive a multi-carrier signal in a frequency band equal to or higher than a predetermined frequency, and a control unit configured to determine a first frame structure of the multi-carrier signal, wherein in the first frame structure, at least one of a subcarrier spacing and a number of resource blocks in a maximum channel bandwidth, a CP (cyclic prefix) ratio, and a time unit or a frequency unit of scheduling is different from a second frame structure of the multi-carrier signal in a frequency band equal to or lower than the predetermined frequency.
    Type: Application
    Filed: February 7, 2020
    Publication date: March 9, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shohei Yoshioka, Shinya Kumagai, Daisuke Kurita, Satoshi Nagata
  • Publication number: 20230054553
    Abstract: A terminal includes a reception section that receives downlink feedback information (DFI); and a control section that terminates repetition of data in uplink transmission in a case where an acknowledgement (ACK) is detected in the DFI. In other aspects, a base station, a radio communication method, and a radio communication system comprising a terminal and a base station are also disclosed.
    Type: Application
    Filed: February 6, 2020
    Publication date: February 23, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Publication number: 20230058397
    Abstract: A terminal including a receiver that receives a signal transmitted from a base station on a downlink shared channel in a high frequency band higher than or equal to a frequency band of a Frequency Range 2 (FR2), in a frequency range formed of a Frequency Range 1 (FR1), which is a low frequency band, and the FR2, which is a high frequency band, in a New Radio (NR) system; a controller that generates feedback information for reception of the signal; and a transmitter that transmits the feedback information, wherein the controller sets an offset from the reception of the signal to the transmission of the feedback information to be greater than a predetermined offset value.
    Type: Application
    Filed: February 13, 2020
    Publication date: February 23, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shohei Yoshioka, Shinya Kumagai, Satoshi Nagata
  • Publication number: 20230049707
    Abstract: A terminal includes a control unit configured to perform LBT (Listen before talk) in a frequency band above a predetermined frequency, and a transmission unit configured to transmit a signal based on a result of the LBT, wherein the control unit performs the LBT with a mechanism different from LBT performed in a frequency band below the predetermined frequency.
    Type: Application
    Filed: February 13, 2020
    Publication date: February 16, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shinya Kumagai, Satoshi Nagata
  • Publication number: 20230051403
    Abstract: A terminal includes a reception unit configured to receive information for allocating uplink transmission from a base station; a control unit configured to determine a CP extension value in a case where a parameter for calculating the CP extension value is not configured by the base station upon receiving the information; and a transmission unit configured to execute the uplink transmission by applying the determined CP extension value.
    Type: Application
    Filed: January 23, 2020
    Publication date: February 16, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Shinya Kumagai, Hiroki Harada, Satoshi Nagata
  • Publication number: 20230039325
    Abstract: A terminal includes a receiving unit that receives control information transmitted on a second cell, the control information including information used to assign a resource for a downlink shared channel reception or a resource for an uplink shared channel transmission in a first cell; and a control unit that determines at least one of a measurement of a channel state information reference signal (CSI-RS), a measurement of a tracking reference signal (TRS), a transmission of a sounding reference signal (SRS), or a transmission of a physical random access channel (PRACH) is triggered, regardless of a content of information other than the information used to assign the resource included in the control information.
    Type: Application
    Filed: February 12, 2020
    Publication date: February 9, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Shohei Yoshioka, Shinya Kumagai, Daisuke Kurita, Satoshi Nagata