Patents by Inventor Hiroki Harada

Hiroki Harada 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: 20210014808
    Abstract: In one aspect of the present invention, user equipment includes a reception unit configured to receive first system information in a frequency block where a synchronization signal is placed and third system information in another frequency block; and a control unit configured to stop detecting the synchronization signal, (1) based on a parameter value determined from the first system information, (1-1) when a control channel search space for receiving second system information does not exist and (1-2) when the parameter value is within a predetermined range and (2) when the control channel search space for receiving the second system information does not exist based on a parameter value determined from the third system information.
    Type: Application
    Filed: April 10, 2019
    Publication date: January 14, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Hiroki Harada
  • Patent number: 10892517
    Abstract: According to one embodiment, a solid electrolyte includes a sintered body of ceramic grains. The sintered body includes a crystal plane having an ion conducting path. The crystal plane is oriented in a direction which intersects at least one surface of the solid electrolyte.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: January 12, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro Harada, Norio Takami, Hiroki Inagaki
  • Publication number: 20210007140
    Abstract: A transmitting apparatus that transmits data in a first frequency band is provided with a transmitting section that transmits a transmission request signal of the data in the first frequency band, a receiving section that receives a response signal to the transmission request signal in a second frequency band, and a control section that controls transmission of the data based on the response signal.
    Type: Application
    Filed: February 16, 2018
    Publication date: January 7, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Daisuke Murayama, Hiroki Harada, Kazuaki Takeda, Satoshi Nagata
  • Publication number: 20200413358
    Abstract: A user apparatus for communicating with a first base station apparatus using a first RAT (Radio Access Technology) and a second base station apparatus using a second RAT includes a reception unit configured to receive, from the first base station apparatus, a configuration for measuring a timing difference between a cell of the first base station apparatus and a cell of the second base station apparatus; a control unit configured to perform measurement with respect to a cell of the second RAT based on the configuration for measuring the timing difference; and a transmission unit configured to transmit, to the first base station apparatus, a result of the performed measurement, wherein the configuration for measuring the timing difference includes information indicating an upper limit of a number of cells of the second RAT.
    Type: Application
    Filed: February 22, 2019
    Publication date: December 31, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Naoki Fujimura, Takuma Takada
  • Patent number: 10879100
    Abstract: A device includes a substrate holding unit 25 configured to hold a substrate and be movable in a transversal direction to transfer the substrate from one module to another module; a first detecting unit 3 configured to detect a position of the substrate on the substrate holding unit 25 before the substrate holding unit 25 transfers the substrate into the another module after receiving the substrate from the one module; second detecting units 55 and 56 configured to detect a position deviation between a position of the substrate holding unit 25, which is located at a temporary position set to transfer the substrate into the another module, and the temporary position; and a position determining unit 10 configured to determine a transfer position where the substrate is transferred into the another module based on the position of the substrate on the substrate holding unit 25 and the position deviation.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 29, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Tokutarou Hayashi, Hiroki Harada, Akihiro Teramoto, Tooru Tokimatu, Masahiro Abe, Kazutoshi Ishimaru
  • Publication number: 20200404537
    Abstract: A terminal is disclosed including a receiver that detects a synchronization signal block including a broadcast channel; and a processor that interprets an information element within the broadcast channel differently depending on whether a condition is met. In other aspects, a radio communication method for a terminal and a base station are disclosed.
    Type: Application
    Filed: December 13, 2017
    Publication date: December 24, 2020
    Applicant: NTT DOCOMO, INC.
    Inventor: Hiroki Harada
  • Publication number: 20200404703
    Abstract: A user apparatus receives an instruction to execute a random access procedure from a base station apparatus and includes a reception unit that receives first information specifying an available random access channel from the base station apparatus; a control unit that identifies, on the basis of the first information, a resource of the available random access channel in a time domain or a frequency domain; and a transmission unit that transmits a random access preamble using the identified resource.
    Type: Application
    Filed: February 20, 2018
    Publication date: December 24, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Tooru Uchino, Tomoya Ohara, Hideaki Takahashi, Hiroki Harada
  • Patent number: 10869285
    Abstract: The present invention is designed so that synchronization signals and/or reference signals that are designed by taking into account the requirements for carriers can be used. According to one aspect of the present invention, a user terminal has a receiving section that receives at least one of a narrowband signal and a wideband signal, which are designed to share the same transmission timing, and a control section that exerts control, in which at least one of the narrowband signal and the wideband signal is used for synchronization and/or measurement, and the receiving section receives the narrowband signal in a partial frequency domain that is included in the frequency domain of the wideband signal, and receives the wideband signal in the frequency domain that includes the frequency domain of the narrowband signal.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 15, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Kazuki Takeda, Satoshi Nagata
  • Publication number: 20200389350
    Abstract: A user terminal according to one aspect of the present invention includes: a receiving section that receives information related to whether or not it is possible to perform control of Radio Link Monitoring (RLM) based on a Beam Recovery (BR) result; and a control section that determines whether or not to perform the control of the RLM based on the BR result, based on the information related to whether or not it is possible to perform the control of the RLM. According to one aspect of the present disclosure, it is possible to prevent a communication throughput from lowering even when RLM control based on BR is performed.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 10, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata, Jing Wang, Min Liu
  • Publication number: 20200389929
    Abstract: A user apparatus communicates with a first base station apparatus and a second base station apparatus, and the user apparatus includes a receiving unit configured to receive, from the first base station apparatus, a configuration for measuring a timing difference between the first base station apparatus and the second base station apparatus; a control unit configured to execute measurement with respect to the second base station apparatus, based on the configuration for measuring the timing difference; and a transmitting unit configured to transmit a result of the executed measurement, to the first base station apparatus, wherein the executed measurement is executed before starting to communicate with the second base station apparatus.
    Type: Application
    Filed: November 16, 2017
    Publication date: December 10, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Yousuke Sano, Takuma Takada
  • Publication number: 20200374726
    Abstract: To measure received quality appropriately. A user terminal according to one aspect of the present invention includes: a receiving section that receives a reference signal in one or more reference signal resources for a measurement of a channel state; and a measurement section that measures a first received power of the reference signal and a second received power in radio resources associated with the one or more reference signal resources, wherein the measurement section derives received quality of a cell, based on the first received power and the second received power.
    Type: Application
    Filed: August 10, 2017
    Publication date: November 26, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata, Jing Wang, Liu Liu
  • Publication number: 20200374837
    Abstract: In order to properly notify of resources in which a synchronization signal block is transmitted in the future radio communication system, a user terminal has a receiving section that receives pattern information indicating whether or not a synchronization signal block is transmitted in each of a plurality of transmission candidate positions within a group of transmission candidate positions of the synchronization signal block, and group information indicating a method of applying the pattern information to each of a plurality of groups, and a control section that controls, based on the group information, one of assuming that the synchronization signal block is transmitted in all transmission candidate positions within a particular group, and of determining the plurality of transmission candidate positions within the particular group according to the pattern information.
    Type: Application
    Filed: February 15, 2018
    Publication date: November 26, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Tomoya Ohara
  • Publication number: 20200367287
    Abstract: User equipment includes a receiver that communicates with a base station apparatus, and that receives, from the base station apparatus, one or more blocks associated with one or more beams transmitted from the base station apparatus, the one or more blocks including information used for initial access; a controller that selects a block used for determining a resource for transmitting a preamble from the one or more blocks, based on received power or reception quality of the one or more beams; and a transmitter that transmits the preamble to the base station apparatus using the resource.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 19, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomoya Ohara, Hiroki Harada
  • Publication number: 20200366398
    Abstract: A terminal is disclosed including a receiver that receives a synchronization signal/physical broadcast channel (SS/PBCH) block including a synchronization signal (SS) and a physical broadcast channel (PBCH); and a processor that determines a control resource set based on configuration information in a configuration information set of a plurality of configuration information sets, the configuration information set being associated with information based on the SS/PBCH block, the configuration information being associated with a value of a field in the PBCH, and the configuration information including a plurality of parameters regarding the control resource set. In other aspects, a radio communication method and a base station are also disclosed.
    Type: Application
    Filed: November 16, 2017
    Publication date: November 19, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Daiki Takeda, Kazuki Takeda, Hiroki Harada, Yousuke Sano
  • Publication number: 20200367180
    Abstract: A user terminal according to one aspect of the present disclosure includes: a control section that determines a step size of a value of a Power Headroom (PH) per increase of an index related to the PH or a range of a value of the PH associated with the index based on a given condition; and a transmitting section that transmits a Power Headroom Report (PHR) including the index. According to one aspect of the present disclosure, it is possible to report an appropriate PH in future radio communication systems, too.
    Type: Application
    Filed: February 9, 2018
    Publication date: November 19, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Ryosuke Osawa, Tooru Uchino, Kei Andou, Hiroki Harada
  • Publication number: 20200367251
    Abstract: The present invention is designed to achieve the advantages of dynamic subframe utilization even when FDD is used in future radio communication systems. A receiving section that receives a DL signal in a DL subframe, a transmission section that transmits a UL signal in a UL subframe, and a control section that controls the receipt of the DL signal and the transmission of the UL signal in frequency division duplex (FDD), which use different frequencies, are provided, and a predetermined offset is configured so that the time at which the UL subframe starts comes after the time a DL subframe that is associated with the UL subframe begins.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 19, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Keisuke Saito, Kazuki Takeda, Hiroki Harada, Satoshi Nagata
  • Patent number: 10840985
    Abstract: A terminal is disclosed including a transmitter that transmits information regarding at least one reception power (RSRP: Reference Signal Received Power) and a processor that, when reporting of a first RSRP and a second RSRP is carried out, controls to transmit a value corresponding to the first RSRP, and a value corresponding a difference between the first RSRP and the second RSRP. In other aspects, a radio communication method is disclosed.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: November 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Ryosuke Osawa, Hiroki Harada, Yuichi Kakishima
  • Patent number: 10841946
    Abstract: According to the present invention, low-latency communication in a next-generation mobile communication system can be achieved. A user terminal includes a receiving section configured to receive at least one piece of downlink control information out of first downlink control information that schedules reception of downlink data and second downlink control information that schedules transmission of uplink data; and a control section configured to perform a control to carry out communication using a transmission time interval (TTI) configuration, including an allocation section for receiving the downlink control information, a data section for carrying out reception of downlink data corresponding to the received downlink control information and/or transmission of uplink data, and a delivery acknowledgement section for carrying out reception and/or transmission of delivery acknowledgement information corresponding to predetermined data.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: November 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Hiroki Harada, Satoshi Nagata
  • Patent number: 10841921
    Abstract: A radio base station is disclosed. The radio base station has a transmitter that transmits downlink (DL) data and a measurement signal to a user terminal and a processor that executes control of transmission of the DL data and the measurement signal based on a result of listening, which is performed before signals are transmitted. The processor applies different conditions to listening that is performed before the DL data is transmitted and listening that is performed before the measurement signal is transmitted.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: November 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata, Yu Jiang, Liu Liu, Huiling Jiang
  • Patent number: 10841935
    Abstract: In order to allow even a user terminal not supporting UL simultaneous communication to communicate appropriately in a future radio communication system, the present invention provides a user terminal communicating with a plurality of communication systems, having a reception section that receives a downlink (DL) signal transmitted from each of the communication system; a transmission section that transmits an uplink (UL) signal to each of the communication system; and a control section that controls reception of the DL signal and transmission of the UL signal. The control section controls not to transmit UL signals simultaneously to different communication systems.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: November 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Hiroki Harada, Satoshi Nagata