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).

  • TERMINAL APPARATUS, BASE STATION APPARATUS, AND COMMUNICATION METHOD
    Publication number: 20200244414
    Abstract: Terminal apparatuses (1, 1A, and 1B) efficiently communicate with a base station apparatus (3). The terminal apparatuses (1, 1A, and 1B): receive multiple downlink signals in downlink in one or multiple serving cells; monitor a beam state of the downlink, based on the multiple downlink signals received; generate a first MAC CE including first information indicating the beam state of the downlink of at least one of the one or multiple serving cells and second information identifying a serving cell of the one or multiple serving cells corresponding to the beam state indicated by the first information, and generate a first MAC PDU including the first MAC CE; and transmit the first MAC PDU.
    Type: Application
    Filed: June 13, 2018
    Publication date: July 30, 2020
    Inventors: Hiroki TAKAHASHI, Shohei YAMADA, Hidekazu TSUBOI, Kazunari YOKOMAKURA
  • Terminal device, base station device, communication method, and integrated circuit
    Patent number: 10728800
    Abstract: A terminal device and a base station device can efficiently communicate with each other by using a downlink channel. The terminal device monitors, in a subframe k, a first set Sk(L) of first PDCCH candidates and a second set Sk(L) of second PDCCH candidates. A first number Mc(L) of first PDCCH candidates is given based on first ?c and M(L), and a second number Mc(L) of second PDCCH candidates is given based on second ?c and M(L). First CCE(s) corresponding to an m-th first PDCCH candidate included in the first set Sk(L) and a second CCE(s) corresponding to an m-th second PDCCH candidate included in the second set are given by an expression below. NCCE,k is a total number of CCEs in the subframe k, and L is an aggregation level.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: July 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Tatsushi Aiba, Kazunari Yokomakura, Hiroki Takahashi
  • TERMINAL APPARATUS, BASE STATION APPARATUS, INTEGRATED CIRCUIT, AND RADIO COMMUNICATION METHOD
    Publication number: 20200221452
    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: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Inventors: Hiroki TAKAHASHI, Shoichi SUZUKI, Tatsushi AIBA, Kazunari YOKOMAKURA
  • Terminal apparatus, base station apparatus, communication method, and integrated circuit
    Patent number: 10708097
    Abstract: A terminal apparatus configured to transmit a time continuous signal for a first subcarrier in a first time symbol, and to generate the time continuous signal based on at least a first complex-valued symbol to which a phase rotation is applied. The phase rotation is given based on at least a subcarrier index of the first subcarrier.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: July 7, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Shohei Yamada, Kazunari Yokomakura, Hiroki Takahashi
  • Terminal device, base station device, integrated circuit, and communication method
    Patent number: 10708005
    Abstract: Provided is a terminal device that receives RRC layer information indicating an asynchronous HARQ for a secondary cell, and a first random access response, which is a random access response including fields for indicating an uplink grant and a Temporary C-RNTI and is related to a non-contention based random access procedure on the secondary cell, that manages multiple HARQ processes, and that delivers the uplink grant to an HARQ process that instructs the transmission unit to transmit the MAC layer data in accordance with the uplink grant. In a case that the RRC layer information indicating the asynchronous HARQ is configured, a HARQ process in which the uplink grant included in the first random access response is delivered is determined based on the value of a field for indicating the Temporary C-RNTI included in the first random access response.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 7, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Tatsushi Aiba, Kazunari Yokomakura, Hiroki Takahashi
  • Method and apparatus for indicating restricted resources of wireless terminal
    Patent number: 10708765
    Abstract: A wireless terminal participates in communications over a radio interface with an access node of a radio access network (RAN). The wireless terminal comprises processor circuitry configured to detect an abnormal operation of the wireless terminal and to autonomously declare a Safe-Mode without permission of the radio access network. In an example implementation, the processor circuitry is further configured to generate a safe mode indication configured to indicate to the access node that one or more capabilities supported by the wireless terminal is temporarily not available at the wireless terminal; and wherein the wireless terminal further comprises transmitter circuitry configured to transmit the safe mode indication over the radio interface to the access node.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: July 7, 2020
    Assignees: Sharp Laboratories of America, Inc., FG Innovation Company Limited
    Inventors: Kamel M. Shaheen, Tatsushi Aiba, Kazunari Yokomakura
  • 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
  • BASE STATION APPARATUS, TERMINAL APPARATUS, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20200195358
    Abstract: A terminal apparatus includes: a higher layer processing unit configured to receive first information and second information; and a receiver configured to receive a block including a first signal, a second signal, a third signal, and a physical broadcast channel, wherein the first information includes information for indicating a periodicity of one or more of the blocks, the second information includes information for indicating time positions of the one or more of the blocks included in a certain time period, a cell ID is detected from the first signal and the second signal, and an index of the block is detected from the third signal.
    Type: Application
    Filed: April 25, 2018
    Publication date: June 18, 2020
    Inventors: Kazunari YOKOMAKURA, Shohei YAMADA, Hidekazu TSUBOI, Hiroki TAKAHASHI
  • 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
  • TERMINAL APPARATUS, COMMUNICATION METHOD, INTEGRATED CIRCUIT, AND SYSTEM OF BASE STATION APPARATUS
    Publication number: 20200169906
    Abstract: To provide a technique related to a terminal apparatus (2), a base station apparatus (3), a communication method, and an integrated circuit, which are capable of efficient communication. The terminal apparatus (2) includes a first radio control entity unit and a second radio control entity unit, wherein in a case a first signaling radio bearer (SRB3) is established, the second radio control entity unit submits a second measurement report message to a lower layer of a secondary cell group, and in a case that SRB3 is not established, the second radio control entity unit delivers first data including a second measurement report message to the first radio control entity unit, and the first radio control entity unit generates a first measurement report message including the first data encapsulated and submits the first measurement report message to a lower layer of a master cell group.
    Type: Application
    Filed: July 23, 2018
    Publication date: May 28, 2020
    Inventors: Hidekazu TSUBOI, Shohei YAMADA, Kazunari YOKOMAKURA, Hiroki TAKAHASHI, Takako HORI
  • 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 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, BASE STATION APPARATUS, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20200137800
    Abstract: A terminal apparatus receives a signal including indication information indicating initiation of a random access procedure from a base station apparatus. The terminal apparatus transmits the one or more random access preambles, based on the indication information. The terminal apparatus determines an antenna port to be used for transmission of the one or more random access preambles, based on information of the SRS resource included in the indication information.
    Type: Application
    Filed: June 15, 2018
    Publication date: April 30, 2020
    Inventors: Hiroki TAKAHASHI, Shohei YAMADA, Hidekazu TSUBOI, Kazunari YOKOMAKURA
  • 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 COMMUNICATION METHOD
    Publication number: 20200128586
    Abstract: A terminal apparatus includes: a measurement unit configured to measure a first radio link quality based on at least part of a plurality of reference signals and a second radio link quality based on at least part of the plurality of reference signals in a certain serving cell; and a processing unit configured to trigger a report in a case that the first radio link quality and the second radio link quality satisfy a predetermined condition.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 23, 2020
    Inventors: Hiroki TAKAHASHI, Shohei YAMADA, Hidekazu TSUBOI, Kazunari YOKOMAKURA
  • BASE STATION APPARATUS, TERMINAL APPARATUS, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20200127879
    Abstract: A terminal apparatus includes a higher layer processing unit configured to receive first information and second information, and a receiver configured to receive a block and a physical downlink shared channel. The first information includes information for indicating a periodicity of one or more of the blocks. Each of the one or more blocks includes a first synchronization signal, a second synchronization signal, and a physical broadcast channel. The second information includes information for indicating time positions of the one or more blocks included in a certain time period. The physical downlink shared channel is not received in a resource element for a synchronization signal block at a time position of the time positions indicated by the second information.
    Type: Application
    Filed: April 26, 2018
    Publication date: April 23, 2020
    Inventors: Kazunari YOKOMAKURA, Shohei YAMADA, Hidekazu TSUBOI, Hiroki TAKAHASHI
  • Terminal device, base station device, integrated circuit, and communication method
    Patent number: 10624065
    Abstract: A terminal device configured to communicate with a base station device includes: a reception unit configured to receive information indicating that more than five downlink carriers are configured, and information indicating the number of cells in which the terminal device is capable of simultaneously monitoring physical downlink control channels; and a monitoring unit configured to monitor physical downlink control channels of only cells specified by the information indicating the number of cells in which the terminal device is capable of simultaneously monitoring physical downlink control channels.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: April 14, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazunari Yokomakura, Tatsushi Aiba, Shoichi Suzuki, Hiroki Takahashi