Patents by Inventor Shohei Yamada

Shohei Yamada 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: 20190312678
    Abstract: Channel encoding is provided that includes applying turbo coding with a coding rate of 1/5 to an input bit sequence, applying a subblock interleaver to each of first to fifth code bit sequences to which the turbo coding is applied, applying bit collection to the first to fifth code bit sequences output from the subblock interleaver, the bit collection outputting the first code bit sequence in order, outputting the second code bit sequence and the fourth code bit sequence alternately on a bit-by-bit basis after the first code bit sequence, and outputting the second code bit sequence and the fifth code bit sequence alternately on a bit-by-bit basis.
    Type: Application
    Filed: July 7, 2017
    Publication date: October 10, 2019
    Inventors: KAZUNARI YOKOMAKURA, SHOHEI YAMADA, HIDEKAZU TSUBOI, HIROKI TAKAHASHI, TATSUSHI AIBA
  • Publication number: 20190313309
    Abstract: A terminal apparatus includes a receiver configured to receive a radio resource control (RRC) reconfiguration message from a base station apparatus, and a controller configured to configure a parameter based on the parameter included in the RRC reconfiguration message. The parameter includes at least identity information of a target cell and a configuration of a subcarrier spacing, and the configuration of the subcarrier spacing is configured for each of the target cells.
    Type: Application
    Filed: December 12, 2017
    Publication date: October 10, 2019
    Inventors: Hidekazu TSUBOI, Shohei YAMADA, Kazunari YOKOMAKURA, Hiroki TAKAHASHI
  • Publication number: 20190312675
    Abstract: Provided is a coding unit to determine the number of code block groups, divide an input bit sequence to code block segmentation into code block groups of the number of the code block groups, determine the number of code blocks for each of the code block groups, divide each of the code block groups into code blocks of the number of the code blocks, and apply channel coding to each of the code blocks.
    Type: Application
    Filed: July 7, 2017
    Publication date: October 10, 2019
    Inventors: KAZUNARI YOKOMAKURA, SHOHEI YAMADA, HIDEKAZU TSUBOI, HIROKI TAKAHASHI, TATSUSHI AIBA
  • Patent number: 10436842
    Abstract: Provided is a technique related to a terminal apparatus, a base station apparatus, a communication system, a communication method, and an integrated circuit that are capable of efficiently performing device-to-device communication. In a case where a terminal apparatus capable of direct communication between terminal apparatuses starts a timer corresponding to a group index that identifies short-range group communication, to which the terminal apparatus belongs, and the timer expires, switching is performed from a first radio resource allocation method, by which a radio resource to be used for the direct communication is requested to a base station apparatus, to a second radio resource allocation method by which the terminal apparatus selects a radio resource to be used for the direct communication.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: October 8, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsunari Uemura, Shohei Yamada, Hidekazu Tsuboi
  • Patent number: 10440699
    Abstract: A User Equipment (UE) configured for multi-group communications is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE detects a plurality of cells. The UE also determines to use multiple groups of one or more cells. The UE further determines a primary secondary cell (PSCell) for a non-primary cell (non-PCell) group based on UE-specific radio resource control (RRC) signaling. The UE additionally receives information using the multiple groups.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: October 8, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shohei Yamada
  • Publication number: 20190297617
    Abstract: In a radio system which allocates resources using as units resource blocks which are formed by frequency components and time components, control information for mobile station devices, and identification information which is used to identify a format for a control information transmission channel which transmits the control information is transmitted from the base station device to the mobile station devices by means of the control information transmission channel.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
    Inventors: Shohei Yamada, Daiichiro Nakashima, Keiichi Hibi
  • Publication number: 20190297549
    Abstract: A terminal apparatus applies, in a case that a handover command is received, and the handover command includes skip information (rach-Skip) for indicating that a random access procedure for a target primary cell is skipped, a value of NTA indicated by target TA information (targetTA) included in the skip information (rach-Skip) to a target primary Timing Advance Group (TAG) after synchronization with a downlink of the target primary cell is initiated, and starts a Time Alignment (TA) timer associated with the target primary TAG.
    Type: Application
    Filed: December 8, 2017
    Publication date: September 26, 2019
    Inventors: Shoichi SUZUKI, Shohei YAMADA, Wataru OUCHI, Tomoki YOSHIMURA, Liqing LIU
  • Publication number: 20190297550
    Abstract: The present invention provides a base station, a user equipment (UE) and a method executed by the base station. The method executed by the base station comprises: broadcasting to the UE that the base station supports connectivity to a first core network and a second core network, a communication interface between the first core network and the base station being different from a communication interface between the second core network and the base station; receiving a selection of the UE to one of the first core network and the second core network; and initiating, according to the received selection of the UE, connection establishment to the core network selected by the UE. The technical solution provides a core network selection method for a base station (e.g., eLTE eNB) simultaneously supporting two different core networks, so as to correspondingly determining a network interface used for communication with the selected core network, thereby achieving normal communication between the UE and the core network.
    Type: Application
    Filed: November 2, 2017
    Publication date: September 26, 2019
    Inventors: CHONGMING ZHANG, SHOHEI YAMADA, RENMAO LIU
  • Patent number: 10425927
    Abstract: A mobile station (MS) receive a higher layer signal including first information used for indicating a first downlink component carrier (DCC). MS transmits in a first subframe, HARQ control information using a first PUCCH and a first PUCCH format in a case that a first PDSCH transmission on a second DCC different from the first DCC is indicated by a detection of a first PDCCH in a second subframe. MS transmits in a third subframe, HARQ control information using a second PUCCH and a second PUCCH format in a case that a second PDSCH transmission only on the first DCC is indicated by a detection of a second PDCCH in a fourth subframe. First PUCCH format supports a number of information bits per subframe larger than a number of information bits per subframe supported by the second PUCCH format. First PUCCH format is used for transmitting HARQ control information with a scheduling request.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: September 24, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsushi Aiba, Shohei Yamada, Shoichi Suzuki
  • Patent number: 10425915
    Abstract: A wireless terminal comprising a processor configured to determine a set of plural pools of resources, to select a pool of resources from a set of plural pools of resources, and to transmit a sidelink direct transmission data using resources of the pool.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: September 24, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Jia Sheng, Shohei Yamada, John Michael Kowalski
  • Patent number: 10419990
    Abstract: Wireless terminals, base stations, telecommunications systems, telecommunications methods, and integrated circuits whereby efficient selecting of network cells in which terminals are camped and made available. A base station transmits, respectively, first system information that relates to a cell-selection performed by conventional terminals, and second system information that relates to a cell-selection performed by terminals that support coverage enhancement, and a terminal considers cells to which the second system information is not transmitted as barred cells, and in a case where the second system information is transmitted, performs a cell-selection using cell-selection parameters that relate to coverage-enhancement cells.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: September 17, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Katsunari Uemura, Shohei Yamada, Yasuyuki Kato, Hidekazu Tsuboi
  • Publication number: 20190281634
    Abstract: Provided is a terminal apparatus to receive multiple pieces of random access configuration information, to select one piece of random access configuration information to be used in a random access procedure out of the multiple pieces of random access configuration information, and to transmit a random access preamble on the basis of the selected one piece of random access configuration information.
    Type: Application
    Filed: July 21, 2017
    Publication date: September 12, 2019
    Inventors: HIROKI TAKAHASHI, SHOHEI YAMADA, HIDEKAZU TSUBOI, TATSUSHI AIBA, KAZUNARI YOKOMAKURA
  • Publication number: 20190274093
    Abstract: The present disclosure provides a method for obtaining supplementary system information, and a corresponding user equipment (UE), and base station. A method used in the UE according to the present invention comprises: sending a system information request message to a base station to request required supplementary system information, and starting a timer simultaneously; and receiving the requested supplementary system information within a time window defined by the timer.
    Type: Application
    Filed: November 2, 2017
    Publication date: September 5, 2019
    Applicants: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: FANGYING XIAO, SHOHEI YAMADA, RENMAO LIU
  • Patent number: 10405339
    Abstract: A method by a user equipment (UE) is described. The method includes instructing a physical layer of the UE to signal a scheduling request (SR) on a Physical Uplink Control Channel (PUCCH) based on whether scheduling request counter is less than the maximum number of scheduling request transmission, and transmitting, to an evolved Node B (eNB), the SR on either of the PUCCH on a primary cell and the PUCCH on a PUCCH secondary cell. The scheduling request counter is incremented in a case that the scheduling request counter is less than the maximum number of scheduling request transmission.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: September 3, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shohei Yamada, Katsunari Uemura, Yasuyuki Kato, Hidekazu Tsuboi
  • Patent number: 10390262
    Abstract: A terminal device derives the number of repetitive transmissions and/or repetitive receptions required on the basis of the downlink reference signal received power, compares that number with the number of repetitive transmissions and/or repetitive receptions configured in the terminal device, performs a random access procedure upon the numbers being different from each other, and determines a configuration for the number of some or all repetitive transmissions and/or repetitive receptions during the random access procedure on the basis of the former number of repetitions.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: August 20, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Tsuboi, Katsunari Uemura, Yasuyuki Kato, Shohei Yamada
  • Patent number: 10389493
    Abstract: A terminal device and a base station device efficiently communicate with each other. The terminal device includes a transmission unit configured to repeatedly transmit uplink control information including at least one CQI using a plurality of PUCCHs in a plurality of subframes, in a case where uplink control information is transmitted in the PUCCH in an initial subframe included in the plurality of subframes, based on whether the uplink control information includes an HARQ-ACK, (i) the uplink control information is transmitted using the PUCCH in a first subframe included in the plurality of subframes, or (ii) the uplink control information is not transmitted in the first subframe included in the plurality of subframes.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: August 20, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Tatsushi Aiba, Shohei Yamada, Katsunari Uemura, Kazunari Yokomakura
  • Patent number: 10390251
    Abstract: Provided is a technology related to a terminal device, a base station device, a communication system, a measurement method and an integrated circuit that efficiently perform cell measurement. The base station device configures a primary cell and one or more secondary cells to the terminal device, and indicates a measurement object, a reporting configuration including information indicating a threshold associated with an RSSI report and a report interval, and a measurement identity for linking the reporting configuration and the measurement object, to the terminal device. When, in each configured measurement identity, an associated reporting configuration includes information indicating the threshold associated with the RSSI report and the report interval, the terminal device periodically reports an average value of RSSIs measured in a duration of the report interval, and a percentage of the RSSIs being beyond the threshold as a measurement result.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: August 20, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Katsunari Uemura, Shohei Yamada, Hidekazu Tsuboi
  • Patent number: 10382180
    Abstract: A mobile station apparatus configures a first group including at least one component carrier and a second group including at least one component carrier. The mobile station apparatus decodes a first physical downlink control channel on a first common search space in a first downlink component carrier and a second physical downlink control channel on a second common search space in a second downlink component carrier where first information transmitted on the first physical downlink control channel is applied to a first uplink component carrier within the first group, and where second information transmitted on the second physical downlink control channel is applied to a second uplink component carrier within the second group, and where the first downlink component carrier and the second downlink component carrier are indicated by a higher layer.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: August 13, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Shohei Yamada, Katsunari Uemura, Daiichiro Nakashima
  • Patent number: 10379460
    Abstract: Provided is an electrophotographic member including an electro-conductive substrate and a surface layer on the substrate. The surface layer contains a urethane resin and a first polymer having a specific nitrogen-containing structure. The urethane resin has a structure derived from a second polymer containing a fluorine atom or a structure derived from a third polymer containing a fluorine atom and a silicon atom. The surface layer contains nitrogen atoms derived from the nitrogen-containing structure at a specific ratio in a region from the outer surface of the surface layer to a depth of 300 nm, and the atomic ratios of nitrogen atoms, fluorine atoms, and silicon atoms in a region from a depth of 100 nm from the outer surface of the surface layer to a depth of 300 nm and a region from the outer surface to a depth of 10 nm have specific relationships.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: August 13, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hideya Arimura, Shohei Urushihara, Masaki Yamada
  • Patent number: RE47587
    Abstract: With communication service considered, it is an object to provide a communication system in which power consumption of a mobile station device is suppressed. This mobile communication system includes a base station device and a mobile station device, wherein the base station device includes a scheduling portion that carries out scheduling to determine a downlink CQI effective period scheduled by using the downlink CQI as a downlink effective period, start the downlink effective period after a lapse of a given period from downlink CQI transmission timing, and allow the mobile station device to transmit control information and user data only during the downlink effective period.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: August 27, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasuyuki Kato, Shohei Yamada, Wahoh Oh