Patents by Inventor Hidekazu Tsuboi

Hidekazu Tsuboi 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 method
    Patent number: 11438806
    Abstract: To provide a technique related to a terminal apparatus, a method, and an integrated circuit for efficiently performing communication between a base station apparatus and the terminal apparatus by correctly managing QoS.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: September 6, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Takako Hori, Shohei Yamada, Hidekazu Tsuboi
  • Terminal device, base station device, report transmission method performed by terminal device, and report reception method performed by base station device
    Patent number: 11438945
    Abstract: A terminal device, a base station device, a communication system, a measurement method, and an integrated circuit, which are capable of efficiently performing Sidelink Direct Discovery, are provided. In the terminal device, a reception unit is configured to receive an RRC connection reconfiguration message including a first configuration related to Sidelink Direct Discovery, and in a case where the first configuration includes frequency information, to attempt to acquire configuration information about monitoring of a Sidelink Direct Discovery announcement at a frequency indicated by the frequency information, using a timer configured to count a predetermined time and while the timer is counting, by acquiring system information to be broadcast at the frequency.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: September 6, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Tsuboi, Katsunari Uemura, Shohei Yamada
  • TERMINAL APPARATUS AND METHOD
    Publication number: 20220279380
    Abstract: A terminal apparatus for communicating with a base station apparatus, the terminal apparatus including: a receiver configured to receive, from the base station apparatus, an RRC message including an EHC configuration; and a processing unit. The processing unit configures an EHC protocol in accordance with the EHC configuration, and adds a context identifier to data in processing of the EHC protocol, and indicates, in a case that the context identifier is a particular value, that an Ethernet header of the data is uncompressed.
    Type: Application
    Filed: August 7, 2020
    Publication date: September 1, 2022
    Inventors: Takako HORI, Hidekazu TSUBOI, Shohei YAMADA
  • TERMINAL APPARATUS, METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20220279586
    Abstract: A terminal apparatus for communicating with a base station apparatus includes a receiver configured to receive an RRC message from the base station apparatus, and a processing unit configured to process the RRC message. A first value is a value included in the RRC message and applied to a first timer, and the processing unit changes timing to apply the first value to the first timer, based on whether the RRC message includes first information.
    Type: Application
    Filed: August 7, 2020
    Publication date: September 1, 2022
    Inventors: Hidekazu TSUBOI, Takako HORI, Shohei YAMADA
  • Terminal apparatus, base station apparatus, communication method, and integrated circuit
    Patent number: 11418941
    Abstract: A technique is provided that is related to a terminal apparatus, a base station apparatus, a communication method, and an integrated circuit which enable efficient communication. A terminal apparatus includes a receiver configured to receive, from a base station apparatus, a message requesting mobility history information, and a transmitter configured to notify the base station apparatus of the mobility history information, based on the message. The mobility history information includes a list including identifier information (first identifier information) of a cell of a first radio access technology, and a list including identifier information (second identifier information) of a cell of a second radio access technology. The mobility history information includes stay time information of a limited number of entries, each corresponding to a visit by the terminal apparatus in a cell and/or outside a network.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 16, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Hidekazu Tsuboi, Shohei Yamada, Takako Hori
  • TERMINAL APPARATUS, METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20220256346
    Abstract: A terminal apparatus for communicating with a base station apparatus, the terminal apparatus including: a receiver configured to receive an RRC reconfiguration message from the base station apparatus; and a processing unit, wherein the processing unit establishes a PDCP entity in accordance with the RRC reconfiguration message, applies, to the PDCP entity, a first ciphering algorithm, a first ciphering key, a first integrity protection algorithm, and a first integrity protection key provided by an upper layer, and based on a first request made by the upper layer, applies, to the PDCP entity, a second ciphering algorithm, a second ciphering key, a second integrity protection algorithm, and a second integrity protection key provided by the upper layer.
    Type: Application
    Filed: July 17, 2020
    Publication date: August 11, 2022
    Inventors: Takako HORI, Hidekazu TSUBOI, Shohei YAMADA
  • Establishing packet data convergence protocol entity for dual connectivity
    Patent number: 11399400
    Abstract: A terminal apparatus for communicating with a base station apparatus receives an RRC connection reconfiguration request message including a Data Radio Bearer (DRB) configuration from the base station apparatus. The DRB configuration includes a DRB identity and a PDCP entity configuration corresponding to the DRB identity. PDCP entity configuration information includes one of a PDCP entity configuration for E-UTRA and a PDCP entity configuration for NR. A PDCP entity is established in accordance with the PDCP entity configuration information.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: July 26, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Takako Hori, Shohei Yamada, Hidekazu Tsuboi
  • Terminal apparatus, base station apparatus, communication method, and integrated circuit
    Patent number: 11395202
    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: Grant
    Filed: December 12, 2017
    Date of Patent: July 19, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Hidekazu Tsuboi, Shohei Yamada, Kazunari Yokomakura, Hiroki Takahashi
  • Method and device to provide access control for a user equipment to manage access barring timers
    Patent number: 11382161
    Abstract: An access control method and a user equipment are provided in the present invention. The access control method in a user equipment includes: determining, according to a status of the user equipment, a corresponding access control parameter to execute access control; if a result of the access control is access barring, then starting different access barring timers corresponding to different user equipment states, or starting the same access barring timer in the different user equipment states; and determining a duration of the started access barring timer according to the corresponding access control parameter.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: July 5, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Chongming Zhang, Hidekazu Tsuboi, Chao Luo, Renmao Liu
  • Terminal apparatus, method, and integrated circuit
    Patent number: 11382165
    Abstract: A terminal apparatus for communicating with one or more base station apparatuses, the terminal apparatus including: a receiver configured to receive an RRC connection reconfiguration message including a DRB configuration from the one or more base station apparatuses; and a processing unit configured to release a PDCP entity, in a case that information indicating that a full configuration is applied is included in the RRC connection reconfiguration message, and that a value of an EPS bearer identity included in the DRB configuration is part of a current configuration of the terminal apparatus, and that the PDCP entity is configured on a DRB corresponding to the EPS bearer identity.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 5, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Takako Hori, Shohei Yamada, Hidekazu Tsuboi
  • Terminal apparatus, base station apparatus, method, and integrated circuit
    Patent number: 11375571
    Abstract: Provided is a terminal apparatus for communicating with a base station, the terminal apparatus including: a receiver configured to receive, from the base station apparatus, a Radio Resource Control layer (RRC) reconfiguration message including a list of a Data Radio Bearer (DRB) identity corresponding to a DRB to be released; and a processing unit configured to, in a case that a first DRB identity corresponding to the DRB configured for the terminal apparatus is included in the list, release a Packet Data Convergence Protocol Layer (PDCP) entity associated with the first DRB identity and indicate to a Service Data Adaptation Protocol (SDAP) layer information of the DRB corresponding to the first DRB identity.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: June 28, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Takako Hori, Shohei Yamada, Hidekazu Tsuboi
  • Terminal apparatus, method, and integrated circuit
    Patent number: 11375563
    Abstract: A terminal apparatus for communicating with one or more base station apparatuses, the terminal apparatus including: a receiver configured to receive an RRC reconfiguration message including a DRB configuration from the one or more base station apparatuses, the DRB configuration including a DRB identity and an EPS bearer identity; and a processing unit configured to associate a DRB established with the EPS identity in a case that the DRB identity is not part of a current configuration of the terminal apparatus, the terminal apparatus is configured with EN-DC, and the DRB was configured for the EPS bearer identity before the RRC reconfiguration message is received.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: June 28, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Takako Hori, Shohei Yamada, Hidekazu Tsuboi
  • BASE STATION APPARATUS, TERMINAL APPARATUS, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20220201725
    Abstract: A terminal apparatus receives a higher layer parameter and a PDSCH, and generates a HARQ-ACK codebook and transmits the generated HARQ-ACK codebook on a PUCCH. In a case that a first parameter is configured, a first HARQ-ACK codebook and a second HARQ-ACK codebook are generated, the first HARQ-ACK codebook is used to transmit a HARQ-ACK bit corresponding to a PDSCH A, and the second HARQ-ACK codebook is used to transmit a HARQ-ACK bit corresponding to a PDSCH B. In a case that the first parameter is not configured, the first HARQ-ACK codebook is generated, and the first HARQ-ACK codebook is used to transmit the HARQ-ACK bit corresponding to the PDSCH B.
    Type: Application
    Filed: April 22, 2020
    Publication date: June 23, 2022
    Inventors: Liqing LIU, Shohei YAMADA, Masayuki HOSHINO, Hiroki TAKAHASHI, Hidekazu TSUBOI
  • TERMINAL APPARATUS, METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20220201574
    Abstract: A terminal apparatus applies a configuration of an RRC reconfiguration message to a second configuration which is identical to a part or entirety of a first configuration in a case that the RRC reconfiguration message includes first information, and applies the configuration of the RRC reconfiguration message to the first configuration in a case that the RRC reconfiguration message includes no first information.
    Type: Application
    Filed: April 22, 2020
    Publication date: June 23, 2022
    Inventors: Hidekazu TSUBOI, Shohei YAMADA, Takako HORI
  • TERMINAL APPARATUS, METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20220201573
    Abstract: In a case of using one PDCP entity to communicate with a source cell and a target cell, a terminal apparatus associates, with the PDCP, a radio bearer of the source cell and a radio bearer of the target cell that are associated with an identical EPS bearer identity, and the PDCP manages two keys.
    Type: Application
    Filed: April 23, 2020
    Publication date: June 23, 2022
    Inventors: Hidekazu TSUBOI, Shohei YAMADA, Takako HORI
  • BASE STATION APPARATUS, TERMINAL APPARATUS, AND COMMUNICATION METHOD
    Publication number: 20220191912
    Abstract: A terminal apparatus and a base station apparatus efficiently communicate with each other. A terminal apparatus receives a first DCI and determines transmission of a first PUSCH. The first PUSCH is scheduled by the first DCI, a value of a first PUSCH procedure preparation time for the first PUSCH is a first value in a case that a first condition is not satisfied, and the value of the first PUSCH procedure preparation time is a value acquired by adding a second value to the first value in a case that the first condition is satisfied. The terminal apparatus determines the transmission of the first PUSCH in a case that a number of symbols between the first DCI and the first PUSCH is equal to or greater than a number of symbols corresponding to the value of the first PUSCH procedure preparation time.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 16, 2022
    Inventors: LIQING LIU, SHOHEI YAMADA, MASAYUKI HOSHINO, HIROKI TAKAHASHI, HIDEKAZU TSUBOI
  • TERMINAL APPARATUS, METHOD, AND INTEGRATED CIRCUIT
    Publication number: 20220191968
    Abstract: Provided is a terminal apparatus for communicating with a base station apparatus through a group including at least one or more cells. The terminal apparatus includes: a receiver configured to receive an RRC message from the base station apparatus; and a processing unit configured to perform processing of RRC. The processing unit causes, in a case that first information is included in the RRC message, a first timer to start to be in a running state, and considers, at least in a case that a random access problem indication is received from a MAC entity of the group in a state in which the first timer is not running, or in a case that a random access problem indication is received from a MAC entity of the group in a state in which the first timer is running under a specific condition, a radio link failure for the group to be detected.
    Type: Application
    Filed: March 16, 2020
    Publication date: June 16, 2022
    Inventors: HIDEKAZU TSUBOI, SHOHEI YAMADA, TAKAKO HORI
  • Terminal apparatus, base station apparatus, communication method, and integrated circuit
    Patent number: 11363638
    Abstract: A terminal apparatus receives first information for identifying one or multiple random access channel occasions, and receives second information for identifying an index of a random access preamble. In a case that a first condition is satisfied, the terminal apparatus selects, from one or multiple reference signals, one reference signal based on a measurement of each of the one or multiple reference signals. In a case that a second condition is satisfied, the terminal apparatus selects one reference signal of the one or multiple reference signals associated with a PDCCH used to receive the second information. The terminal apparatus selects, from the one or multiple random access channel occasions, one random access channel occasion associated with the one reference signal selected.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: June 14, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Hiroki Takahashi, Shohei Yamada, Hidekazu Tsuboi, Kazunari Yokomakura
  • Base station apparatus, terminal apparatus, communication method, and integrated circuit
    Patent number: 11362764
    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: Grant
    Filed: July 7, 2017
    Date of Patent: June 14, 2022
    Assignees: FG Innovation Company Limited, Sharp Kabushiki Kaisha
    Inventors: Kazunari Yokomakura, Shohei Yamada, Hidekazu Tsuboi, Hiroki Takahashi, Tatsushi Aiba
  • TERMINAL DEVICE, BASE STATION DEVICE, AND COMMUNICATION METHOD
    Publication number: 20220167238
    Abstract: A terminal apparatus communicating with a base station apparatus comprises a reception unit and a processing unit. The reception unit is configured to receive an RRC connection reconfiguration message from the base station apparatus. The processing unit is configured to establish an NR PDCP for an SRB identity included in the RRC connection reconfiguration message based on information that is included in the RRC connection reconfiguration message and indicates that a full configuration is applied and based on an inter-system handover performed by the terminal apparatus from an UTRA or an EPC to an E-UTRA or a 5GC.
    Type: Application
    Filed: March 16, 2020
    Publication date: May 26, 2022
    Inventors: TAKAKO HORI, SHOHEI YAMADA, HIDEKAZU TSUBOI