Patents by Inventor Tatsushi Aiba

Tatsushi Aiba 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).

  • TERMINAL APPARATUS, BASE STATION APPARATUS, AND INTEGRATED CIRCUIT
    Publication number: 20200205170
    Abstract: A terminal apparatus, a base station apparatus, a communication method, an integrated circuit, and a radio communication system are provided that enable a base station apparatus and a terminal apparatus to determine parameters relating to an uplink reference signal and efficiently communicate with each other.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 25, 2020
    Inventors: Tatsushi AIBA, Shoichi SUZUKI
  • TERMINAL APPARATUS, BASE STATION APPARATUS, AND COMMUNICATION METHOD
    Publication number: 20200205202
    Abstract: There is provided a terminal apparatus to transmit a first random access preamble using a first precoding, monitor a random access response corresponding to the first random access preamble, increment a value of a counter in a case that a reception of the random access response is not successful, and transmit a second random access preamble using a second precoding, if the value of the counter does not reach a predetermined value in a case that the value of the counter is incremented.
    Type: Application
    Filed: July 21, 2017
    Publication date: June 25, 2020
    Inventors: HIROKI TAKAHASHI, SHOHEI YAMADA, HIDEKAZU TSUBOI, TATSUSHI AIBA, KAZUNARI YOKOMAKURA
  • TERMINAL APPARATUS AND BASE STATION APPARATUS
    Publication number: 20200204415
    Abstract: First information indicating a length of a cyclic prefix for an inter-terminal apparatus signal transmitted to the other terminal apparatus and second information indicating a length of a cyclic prefix for an uplink signal in the EUTRAN, from a base station apparatus of the EUTRAN are received from a base station apparatus of the EUTRAN.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi SUZUKI, Tatsushi AIBA, Kazunari YOKOMAKURA, Hiroki TAKAHASHI, Wataru OUCHI, Kimihiko IMAMURA
  • TERMINAL APPARATUS, BASE STATION APPARATUS, COMMUNICATION METHOD AND INTEGRATED CIRCUIT
    Publication number: 20200196253
    Abstract: There is provided a terminal apparatus configured to communicate with a base station apparatus. The terminal apparatus is configured to: receive information indicating a subframe of a first subframe set and a subframe of a second subframe set by using a higher layer signaling.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 18, 2020
    Inventors: Kazunari YOKOMAKURA, Shoichi SUZUKI, Tatsushi AIBA
  • TERMINAL APPARATUS, BASE STATION APPARATUS, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20200187168
    Abstract: Included are: a receiver configured to receive a PDCCH with DCI format; and a transmitter configured to perform corresponding PUSCH transmission in subframe n+k upon detection of the PDCCH in subframe n. The value of k is given based on whether a search space in which the PDCCH is detected is CSS or USS.
    Type: Application
    Filed: July 21, 2017
    Publication date: June 11, 2020
    Inventors: Liqing LIU, Shoichi SUZUKI, Wataru OUCHI, Tomoki YOSHIMURA, Tatsushi AIBA
  • Terminal apparatus, base station apparatus, communication method, and integrated circuit
    Patent number: 10680786
    Abstract: Uplink control information can be efficiently transmitted. A terminal apparatus (1): (i) receives an uplink grant used for scheduling of a PUSCH and an uplink grant used for scheduling of a sPUSCH; (ii) transmits uplink control information; and (iii) in a first case of performing sPUSCH transmission in a first subframe in the primary cell and performing PUSCH transmission in the first subframe in the secondary cell, transmits the uplink control information by using the PUSCH in the first subframe in the secondary cell.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: June 9, 2020
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Shoichi Suzuki, Tatsushi Aiba, Kimihiko Imamura, Wataru Ohuchi, Takashi Hayashi, Tomoki Yoshimura, Liqing Liu
  • Terminal device, communication method, and integrated circuit
    Patent number: 10674478
    Abstract: A terminal device and a base station device efficiently communicate with each other by using multiple cells. The terminal device selects a physical uplink control channel resource used to transmit an SR from a first resource on a first cell for a first subframe and a second resource on a second cell for the first subframe. In a case that neither transmission of a first HARQ-ACK using a given PUCCH format in the first cell nor transmission of second HARQ-ACK using a given PUCCH format in the second cell takes place in the first subframe, the SR is multiplexed with each of the first HARQ-ACK transmitted by using the given PUCCH format in the first subframe on the first cell and the second HARQ-ACK transmitted by using the given PUCCH format in the first subframe on the second cell.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: June 2, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Tatsushi Aiba, Kazunari Yokomakura, Hiroki Takahashi
  • Determining DCI format
    Patent number: 10673566
    Abstract: A UE is described that communicates with a base station apparatus on serving cells having a primary cell and one or more secondary cells. The UE includes receiving circuitry configured to receive, a RRC message including first information configuring a CGB based transmission for a PDSCH. The receiving circuitry is also configured to receive, a RRC message including second information configuring a maximum number of CBGs per transport block. The UE includes processing circuitry configured to determine the number of bits for CBG transmission information comprised in a first DCI format, wherein the first DCI format is used for scheduling of the PDSCH. In a case that the first information is configured, the number of bits for the CBG transmission information comprised in the first DCI format may be determined based on the second information.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: June 2, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tatsushi Aiba, John Michael Kowalski, Kai Ying
  • Terminal apparatus, base station apparatus, communication method, and integrated circuit
    Patent number: 10666331
    Abstract: The terminal apparatus derives CSI, transmits the CSI, and determines content of the CSI based on a type of a downlink physical channel that is allocated to a CSI reference resource or allocated before and closest to the CSI reference resource.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: May 26, 2020
    Assignees: FG INNOVATION COMPANY LIMITED, SHARP KABUSHIKI KAISHA
    Inventors: Liqing Liu, Shoichi Suzuki, Wataru Ouchi, Tatsushi Aiba, Takashi Hayashi, Tomoki Yoshimura
  • Communication apparatus and communication method
    Patent number: 10667163
    Abstract: A MS transmits, to a BS, uplink data (UD) on a PUSCH, PUSCH being assigned by using a PDCCH. The MS receives on PDCCH, an indication instructing the MS to transmit reception quality information (RQI) without UD on PUSCH, and transmits on PUSCH, to the BS, RQI without UD based on the indication which is received on PDCCH. The indication is specified based on values to which a plurality of fields of information transmitted on PDCCH are set. One of the plurality of fields is a field used for instructing the MS to transmit RQI and another is a field used for indicating a redundancy version. For instructing the MS to transmit RQI without UD on PUSCH, the field used for instructing the MS to transmit RQI is set to a first single predetermined value (SPV) and the field used for indicating the redundancy version is set to a second SPV.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 26, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shohei Yamada, Hiroshi Katsuragawa
  • Terminal device, base station device, integrated circuit, and communication method
    Patent number: 10660070
    Abstract: A device includes a reception unit configured to receive first information, second information, and third information; a physical downlink control channel reception unit configured to receive a physical downlink control channel; and a physical downlink shared channel reception unit configured to receive a physical downlink shared channel. When joint coding is configured by the third information, the physical downlink control channel reception unit monitors the physical downlink control channel of a cell configured by the second information, and the physical downlink shared channel reception unit receives physical downlink shared channels of downlink cells indicated by the first information, on the basis of a result of decoding the physical downlink control channel.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: May 19, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazunari Yokomakura, Tatsushi Aiba, Shoichi Suzuki, Hiroki Takahashi
  • Terminal apparatus, base station apparatus, communication method, and integrated circuit
    Patent number: 10645636
    Abstract: A terminal apparatus transmits a system information request to request transmission of a first piece of on-demand SI among multiple pieces of on-demand SI, and monitors the first piece of on-demand SI based on transmission of a system information request to request transmission of the first piece of on-demand SI, the first piece of on-demand SI is monitored during a first window included in a monitoring window, a duration of the monitoring window is at least based on a transmission timing of a system information request to request transmission of the first piece of on-demand SI, and the first window is given at least based on information included in non-demand SI.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 5, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Tatsushi Aiba, Wataru Ohuchi, Takashi Hayashi
  • Transmission apparatus, reception apparatus, communication method, and integrated circuit
    Patent number: 10644847
    Abstract: An apparatus includes a coding unit configured to divide a transport block into one or more code blocks and generate coded bit(s) by coding the one or more code blocks, and a transmitter configured to transmit the coded bit(s) by using a channel, wherein multiplex bit(s) are given based on at least coupling of the coded bit(s) generated by coding of the one or more code blocks, the coding unit maps the multiplex bit(s) to a matrix in a first-axis prioritized manner and reads the multiplex bit(s) from the matrix in the first-axis prioritized manner or in a second-axis prioritized manner, and whether the first axis or the second axis is prioritized in a case that the multiplex bit(s) are read from the matrix is given based on at least the number of OFDM symbols of the channel.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: May 5, 2020
    Assignees: Sharp Kabushiki Kaisha, FG Innovation Company Limited
    Inventors: Tomoki Yoshimura, Shoichi Suzuki, Tatsushi Aiba, Liqing Liu, Wataru Ouchi, Takashi Hayashi, Kimihiko Imamura
  • Terminal device, base station device, communication method, and integrated circuit
    Patent number: 10645602
    Abstract: To include a reception unit and a transmission unit, in which the reception unit receives higher layer signaling including information to be used to configure a first set of one or more serving cells, and information to be used to configure a first reporting mode, receives higher layer signaling including information to be used to configure a second set of one or more serving cells, and information to be used to configure a second reporting mode, and receives a DCI format including a CSI request on a PDCCH, and the transmission unit transmits CSI for the first set on a PUSCH by using the first reporting mode in a case that a first value is set in a field of the CSI request, and transmits CSI for the second set on the PUSCH by using the second reporting mode in a case that a second value is set in the field of the CSI request.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: May 5, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shoichi Suzuki, Kazunari Yokomakura, Hiroki Takahashi
  • TERMINAL APPARATUS, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20200136775
    Abstract: A terminal apparatus and a base station apparatus can efficiently communicate with each other through downlink. A terminal apparatus detects a first physical layer cell identity (PCI) through cell search and receives system information, a first RS, and a second RS. The system information is used to indicate at least (i) a second PCI, (ii) a transmission bandwidth of EUTRA and an offset associated with a physical resource block index, and (iii) an operation of NB-IoT. A first sequence of the first RS is identified based at least on the first PCI. A second sequence of the second RS is identified based at least on the second PCI and the offset.
    Type: Application
    Filed: December 24, 2019
    Publication date: April 30, 2020
    Inventors: SHOICHI SUZUKI, TATSUSHI AIBA, HIROKI TAKAHASHI, SHOHEI YAMADA
  • TERMINAL DEVICE, BASE STATION DEVICE, INTEGRATED CIRCUIT AND COMMUNICATION METHOD
    Publication number: 20200137749
    Abstract: There is provided a terminal device that communicates with a base station device. The terminal device includes a reception unit that receives downlink control information which is used for scheduling of a physical uplink shared channel and includes first information used to trigger a report of channel state information using the physical uplink shared channel, a higher layer signal including second information used to indicate two subframe sets, and the higher layer signal including third information.
    Type: Application
    Filed: December 26, 2019
    Publication date: April 30, 2020
    Inventors: Kazunari YOKOMAKURA, Tatsushi AIBA, Shoichi SUZUKI, Hiroki TAKAHASHI, Wataru OUCHI
  • Terminal apparatus with offset determined depending on subframe set
    Patent number: 10638461
    Abstract: A terminal apparatus communicates with a base station apparatus. The terminal apparatus includes: a determination unit that determines the number of modulation symbols for channel state information transmitted on a physical uplink shared channel based on a value of an offset; and a transmission unit that transmits the channel state information to the base station apparatus on the physical uplink shared channel. When two subframe sets are configured by higher layers, the value of the offset is determined depending on the subframe set to which subframes for transmission on the physical uplink shared channel belong. Thus, the communication can be performed efficiently in a radio communication system in which the channel state information is used.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: April 28, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroki Takahashi, Shoichi Suzuki, Tatsushi Aiba, Kazunari Yokomakura
  • Terminal apparatus, base station apparatus, and integrated circuit
    Patent number: 10638495
    Abstract: A terminal apparatus, a base station apparatus, a communication method, an integrated circuit, and a radio communication system are provided that enable a base station apparatus and a terminal apparatus to determine parameters relating to an uplink reference signal and efficiently communicate with each other.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: April 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shoichi Suzuki
  • Terminal apparatus, communication method, and integrated circuit
    Patent number: 10638536
    Abstract: A terminal apparatus and a base station apparatus are capable of efficiently communicating with each other. A terminal apparatus monitors an NB-PDCCH, performs a DRX functionality that controls monitoring of the NB-PDCCH, starts a downlink HARQ RTT timer, based at least on the NB-PDCCH indicating a downlink transmission, starts an uplink HARQ RTT timer, based at least on the NB-PDCCH indicating an uplink transmission, starts a drx-InactivityTimer, based at least on the downlink HARQ RTT timer expires, starts the drx-InactivityTimer, based at least on the uplink HARQ RTT timer expires, and stops the drx-InactivityTimer, based at least on the NB-PDCCH indicating the downlink transmission or the uplink transmission.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: April 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Tatsushi Aiba
  • User equipments, base stations and methods
    Patent number: 10638507
    Abstract: A user equipment (UE) that communicates with a base station apparatus on one or more downlink bandwidth parts (DL BWPs) in a serving cell is described. Receiving circuitry is configured to receive a radio resource control (RRC) message comprising first information. The receiving circuitry is also configured to receive a RRC message comprising second information. The receiving circuitry is also configured to monitor a PDCCH based on the first information. The receiving circuitry is also configured to receive on the PDCCH, a downlink control information (DCI) format comprising third information and fourth information. Transmitting circuitry is configured to perform in a slot, based on a detection of the DCI comprising the third information and the fourth information, an aperiodic CSI reporting on the PUSCH, the slot being determined based on the fourth information.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: April 28, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tatsushi Aiba, Zhanping Yin