Patents by Inventor Kazunari Yokomakura

Kazunari Yokomakura 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).

  • Patent number: 10602460
    Abstract: With respect to uplink carrier aggregation, transmit power in a serving cell (c) is determined on the basis of maximum output power (PCMAX,C) for the serving cell c and total maximum output power (PCMAX). The maximum output power (PCMAX,C) for the serving cell (c) is based on maximum output power (PPowerClass) defined by a power class corresponding to a band to which the serving cell (c) belongs, and the total maximum output power (PCMAX) is based on maximum output power (PPowerClass) defined by a power class corresponding to a combination of aggregated bands.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 24, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Tatsushi Aiba, Kimihiko Imamura, Kazunari Yokomakura, Hiroki Takahashi
  • Patent number: 10602463
    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: Grant
    Filed: October 24, 2018
    Date of Patent: March 24, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazunari Yokomakura, Shoichi Suzuki, Tatsushi Aiba
  • Publication number: 20200092740
    Abstract: A terminal apparatus includes: a receiver configured to receive first information, second information, and third information; and a measuring unit configured to perform measurements. The first information includes information related to the measurements, the second information includes information for indicating a periodicity of one or more blocks, each of the one or more blocks includes a first synchronization signal, a second synchronization signal, and a physical broadcast channel, the third information includes information for indicating time positions of the one or more blocks, the information related to the measurements includes an object on which the measurements are to be performed at a certain carrier frequency, and the measurements are performed based on the periodicity of the one or more blocks.
    Type: Application
    Filed: April 24, 2018
    Publication date: March 19, 2020
    Inventors: Kazunari YOKOMAKURA, Shohei YAMADA, Hidekazu TSUBOI, Hiroki TAKAHASHI
  • Patent number: 10587441
    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: Grant
    Filed: March 7, 2018
    Date of Patent: March 10, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Tatsushi Aiba, Kazunari Yokomakura, Hiroki Takahashi, Wataru Ouchi, Kimihiko Imamura
  • Publication number: 20200077288
    Abstract: A terminal apparatus configured to receive a measurement configuration from one or more base station apparatuses transmits a first measurement result and a second measurement result, and the first measurement result includes, as measurement results of a serving cell, the measurement results of the serving cell of a first cell group and the serving cell of a second cell group, and the second measurement result includes, as a measurement result of a serving cell, the measurement result of the serving cell of the second cell group.
    Type: Application
    Filed: March 20, 2018
    Publication date: March 5, 2020
    Inventors: Hidekazu TSUBOI, Shohei YAMADA, Kazunari YOKOMAKURA, Hiroki TAKAHASHI
  • Publication number: 20200077312
    Abstract: A terminal apparatus receives a first measurement configuration from a first base station apparatus via a first SRB and receives a second measurement configuration from a second base station apparatus via a second SRB, and transmits via the first SRB a first measurement result for the first measurement configuration configured from the first base station apparatus via the first SRB and transmits via the second SRB a second measurement result for the second measurement configuration configured from the second base station apparatus via the second SRB.
    Type: Application
    Filed: March 20, 2018
    Publication date: March 5, 2020
    Inventors: Hidekazu TSUBOI, Shohei YAMADA, Kazunari YOKOMAKURA, Hiroki TAKAHASHI
  • Publication number: 20200076556
    Abstract: A terminal apparatus includes a monitor unit configured to monitor qualities of a plurality of links, each being associated with at least one reference signal, a controller configured to send an indication to a higher layer in a case that qualities of a prescribed number of links among the qualities of the plurality of links are worse than a threshold, and a higher layer processing unit configured to perform a recovery request to a base station apparatus in a case of receiving a prescribed number of the indications, and end the recovery request in a case of receiving a prescribed physical downlink control channel.
    Type: Application
    Filed: March 23, 2018
    Publication date: March 5, 2020
    Inventors: Hiroki TAKAHASHI, Shohei YAMADA, Hidekazu TSUBOI, Kazunari YOKOMAKURA
  • Patent number: 10582478
    Abstract: To efficiently report channel state information in an uplink. A terminal device includes a transmission unit which reports CSI for multiple subframe sets in a first serving cell and CSI for a second serving cell, first CSIs for some of multiple subframe sets for the first serving cell being reported on a PUCCH with a first format, and second CSI for the rest of multiple subframe sets for the first serving cell being reported on a PUCCH with the first format, and in a case that in a certain subframe, the second CSI report collides with the CSI report in the second serving cell, the second CSI and the CSI for the second serving cell being reported on the PUCCH with a second format.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: March 3, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiroki Takahashi, Shoichi Suzuki, Tatsushi Aiba, Kazunari Yokomakura
  • Publication number: 20200053734
    Abstract: A terminal device configured to perform D2D transmission by a higher layer includes: a reception unit receiving from a base station device one or a plurality of first parameters relating to transmit power and receiving a second parameter for configuring a first transmission resource from the base station device; and a transmission unit performing, upon receipt of the second parameter in an RRC idle state, the D2D transmission using the first transmission resource with the transmit power in accordance with a first parameter corresponding to an authorized range among the one or plurality of first parameters.
    Type: Application
    Filed: October 17, 2019
    Publication date: February 13, 2020
    Inventors: Tatsushi AIBA, Shoichi SUZUKI, Kazunari YOKOMAKURA, Hiroki TAKAHASHI
  • Publication number: 20200052867
    Abstract: A terminal apparatus includes a receiver receiving first system information broadcasted using a first subcarrier spacing, acquiring information of a second subcarrier spacing included in the first system information, receiving second system information broadcasted using the second subcarrier spacing, acquiring a parameter included in the second system information and needed for random access processing, and acquiring information of an uplink subcarrier spacing included in the second system information, and a transmitter transmitting a random access preamble based on the parameter needed for the random access processing.
    Type: Application
    Filed: September 6, 2017
    Publication date: February 13, 2020
    Inventors: Hidekazu TSUBOI, Shohei YAMADA, Kazunari YOKOMAKURA, Hiroki TAKAHASHI
  • Publication number: 20200037365
    Abstract: A terminal apparatus transmits one random access preamble in multiple time sections, and changes a transmit beam to be used to transmit the one random access preamble in one of the multiple time sections or each of the multiple time sections, and monitors a random access response to the one random access preamble. The random access response includes first information for identifying any one of the multiple time sections.
    Type: Application
    Filed: August 15, 2017
    Publication date: January 30, 2020
    Inventors: HIROKI TAKAHASHI, SHOHEI YAMADA, HIDEKAZU TSUBOI, KAZUNARI YOKOMAKURA
  • Publication number: 20200037273
    Abstract: To provide a terminal apparatus including a receiver configured to receive, in a time resource including a plurality of OFDM symbol groups, a synchronization signal included in each of the plurality of OFDM symbol groups, a synchronization unit configured to determine a position of a first synchronization signal that is one of the synchronization signals, and a detection unit configured to receive, based on the first synchronization signal, a physical broadcast channel. The time resource is periodically allocated, and a maximum number of the plurality of OFDM symbol groups in which the synchronization signal included in the time resource is possibly transmitted is predefined.
    Type: Application
    Filed: August 31, 2017
    Publication date: January 30, 2020
    Applicants: Sharp Kabushiki Kaisha, FU Innovation Company Limited
    Inventors: Kazunari YOKOMAKURA, Shohei YAMADA, Hidekazu TSUBOI, Hiroki TAKAHASHI
  • Patent number: 10548137
    Abstract: In a communication system in which a base station device (1) and a terminal device (2) communicate, there is a provided a terminal device, a method, and an integrated circuit enabling the base station device (1) and the terminal device (2) to conduct transmit power control efficiently. Provided is a terminal device that communicates with a base station device, including a transmission unit that transmits an uplink signal based on a first uplink power control in a case of the information related to the first configuration being configured, and the information related to the second configuration not being configured, and transmits an uplink signal based on a second uplink power control in a case of the information related to the first configuration and the information related to the second configuration both being configured.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: January 28, 2020
    Assignee: SHARPP KABUSHIKI KAISHA
    Inventors: Wataru Ouchi, Tatsushi Aiba, Shoichi Suzuki, Kazunari Yokomakura, Kimihiko Imamura
  • Publication number: 20200029235
    Abstract: Provided is a terminal apparatus including: a reception unit configured to: receive first information including at least one first setting, receive second information including at least one second setting, receive third information including at least one third setting, and receive fourth information; a channel state measurement unit configured to measure channel state information; and a transmission unit configured to report the channel state information based on interference that is measured. In the terminal apparatus, the at least one first setting comprises a plurality of first settings for at least one report of the channel state information. Each of the plurality of first settings includes one first index. The at least one second setting comprises a plurality of second settings concerning at least one reference signal for measuring the interference. Each of the plurality of second settings includes one second index.
    Type: Application
    Filed: December 5, 2017
    Publication date: January 23, 2020
    Inventors: Kazunari YOKOMAKURA, Shohei YAMADA, Hidekazu TSUBOI, Hiroki TAKAHASHI
  • Patent number: 10542527
    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: Grant
    Filed: December 29, 2017
    Date of Patent: January 21, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazunari Yokomakura, Tatsushi Aiba, Shoichi Suzuki, Hiroki Takahashi, Wataru Ouchi
  • Patent number: 10542564
    Abstract: A terminal device including a reception unit configured to receive higher layer signalling including a first configuration relating to measurement of a Received Signal Strength Indicator (RSSI) and a second configuration relating to reporting of the RSSI, a measurement unit configured to measure the RSSI and/or a channel occupancy; and a transmission unit configured to report a measurement result for the RSSI and/or the channel occupancy. The measurement result for the RSSI is an average of measurement results obtained in a first period, and the channel occupancy is obtained based on the measurement results equal to or greater than a first threshold among the measurement results obtained in the first period.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: January 21, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Wataru Ouchi, Kazuyuki Shimezawa, Naoki Kusashima, Shoichi Suzuki, Takashi Hayashi, Kazunari Yokomakura
  • Publication number: 20200008189
    Abstract: A mobile station and base station are presented where RRC messages are used for configuring a number of repetitions in a time domain for a PUCCH format 0. If a first number of repetitions has been previously configured, the UCI is repeatedly transmitted in continuous symbols based on the first number of repetitions. RRC messages can also be used to enable frequency hopping in a frequency domain for the PUCCH format 0, where the number of repetitions in the time domain is applied per hop in the frequency domain. Otherwise, RRC messages may include transmission power parameters whose selection is responsive to the type of RNTI used for scheduling PDSCH communications. A first set of parameters is used if a C-RNTI is used for scheduling the PDSCH, and a second set is used when a RNTI, different from a C-RNTI, is used for scheduling of the PDSCH.
    Type: Application
    Filed: June 27, 2019
    Publication date: January 2, 2020
    Inventors: Zhanping Yin, Tatsushi Aiba, Kazunari Yokomakura
  • Publication number: 20200008259
    Abstract: Uplink data is transmitted efficiently. A terminal device configured to: in a case that a difference between an uplink transmission timing for a Timing Advance Group including a primary cell of a master cell group and an uplink transmission timing for a Secondary Timing Advance Group of a secondary cell group exceeds a maximum transmission timing difference, consider that a timer for the Secondary Timing Advance Group of the secondary cell group has expired and stop transmission on a physical uplink shared channel in the Secondary Timing Advance Group of the secondary cell group.
    Type: Application
    Filed: September 12, 2019
    Publication date: January 2, 2020
    Inventors: Tatsushi AIBA, Shoichi SUZUKI, Kazunari YOKOMAKURA, Hiroki TAKAHASHI
  • Publication number: 20200008156
    Abstract: A mobile station and base station are presented where RRC messages are used for configuring a number of repetitions in a time domain for a PUCCH format 0. If a first number of repetitions has been previously configured, the UCI is repeatedly transmitted in continuous symbols based on the first number of repetitions. RRC messages can also be used to enable frequency hopping in a frequency domain for the PUCCH format 0, where the number of repetitions in the time domain is applied per hop in the frequency domain. Otherwise, RRC messages may include transmission power parameters whose selection is responsive to the type of RNTI used for scheduling PDSCH communications. A first set of parameters is used if a C-RNTI is used for scheduling the PDSCH, and a second set is used when a RNTI, different from a C-RNTI, is used for scheduling of the PDSCH.
    Type: Application
    Filed: June 27, 2019
    Publication date: January 2, 2020
    Inventors: Zhanping Yin, Tatsushi Aiba, Kazunari Yokomakura
  • Publication number: 20190394759
    Abstract: A user equipment (UE) is described. The UE includes receiving circuitry configured to receive a radio resource control (RRC) message comprising a first parameter(s) used for configuring a first allocation table and a second allocation table. Each of the first allocation table and the second allocation table are used for defining a time domain allocation for a physical uplink shared channel (PUSCH) transmission. The receiving circuitry is also configured to detect in a UE specific search space, a downlink control information (DCI) format comprising first information used for indicating a row index to the first allocation table or the second allocation table. The DCI format is used for scheduling of the PUSCH. The UE also includes transmitting circuitry configured to perform, based on a detection of the DCI format, the PUSCH transmission based on either of the first allocation table or the second allocation table.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Inventors: Kai Ying, Tatsushi Aiba, John Michael Kowalski, Kazunari Yokomakura