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).

  • 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
  • Patent number: 11375487
    Abstract: A terminal apparatus includes a medium access control layer processing unit configured to manage a HARQ process, and a physical layer processing unit configured to perform processing associated with a PUSCH transmission on a physical layer. A first HARQ process configured for the terminal apparatus determines whether or not to indicate to the physical layer processing unit to generate a transmission of the first HARQ process, based at least on whether or not the transmission of the first HARQ process and a transmission of a second HARQ process occur in the same transmission time. The transmission of the second HARQ process is scheduled so as to use short processing time.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 28, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Liqing Liu, Tomoki Yoshimura, Wataru Ouchi, Shoichi Suzuki, Shohei Yamada
  • 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
  • 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
  • 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
  • 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
  • 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
  • Publication number: 20220191949
    Abstract: A random access method and a user equipment are provided. The random access method includes: transmitting a message A to a base station, the message A includes a preamble and a message A payload; and after completing transmission of the message A, receiving a message B from the base station as a response message to the message A, the preamble is transmitted on a Physical Random Access Channel (PRACH); the message A payload is included in a Medium Access Control (MAC) Protocol Data Unit (PDU), and is transmitted on a Physical Uplink Shared Channel (PUSCH); and obtaining, from a multiplexing and assembly entity, the MAC PDU used for transmission, and storing the MAC PDU in a buffer when determining that a transmission occasion is available for the message A.
    Type: Application
    Filed: March 26, 2020
    Publication date: June 16, 2022
    Inventors: CHONGMING ZHANG, RENMAO LIU, SHOHEI YAMADA
  • 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
  • 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
  • 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
  • Patent number: 11356973
    Abstract: A mobile node includes a plurality of transceivers, has a network conforming to network-based mobility as its home link and performs position registration to a positional managing apparatus and performs position registration to the position managing apparatus through a foreign network by position registration conforming to host-based mobility. In mobile node and position managing apparatus, a plurality of routes passing through the home link and the foreign link are established. Accordingly, when the mobile node has the plurality of transceivers, it can simultaneously connect to the home link and the foreign link through respective transceivers, to perform communication.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: June 7, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masafumi Aramoto, Shohei Yamada
  • 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
  • Publication number: 20220159682
    Abstract: A terminal apparatus includes a reception circuitry configured to receive a DCI format, and a transmission circuitry configured to repeatedly transmit, on a PUSCH, a transport block scheduled by the DCI format, wherein a first number of repetition transmissions, a second number for a symbol number of a start symbol, and a third number of consecutive symbols are given based on the DCI format, and the number of slots used for repetition transmission of the transport block is determined based on the first number, the second number, the third number, and the number of symbols per slot.
    Type: Application
    Filed: January 10, 2020
    Publication date: May 19, 2022
    Inventors: Liqing LIU, Shohei YAMADA, Hiroki TAKAHASHI, Masayuki HOSHINO, Hidekazu TSUBOI
  • Patent number: 11337255
    Abstract: The present disclosure provides a method executed by user equipment, the method comprising: executing a random access procedure; and if a random access response message includes a backoff indicator, setting a preamble backoff time parameter to a time value corresponding to the backoff indicator multiplied by a configured parameter. Furthermore, the present disclosure further provides corresponding user equipment.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: May 17, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Chongming Zhang, Shohei Yamada, Renmao Liu
  • Patent number: 11337251
    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: Grant
    Filed: July 21, 2017
    Date of Patent: May 17, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Hiroki Takahashi, Shohei Yamada, Hidekazu Tsuboi, Tatsushi Aiba, Kazunari Yokomakura
  • Patent number: 11337252
    Abstract: Methods and apparatus for acquiring system information by receiving, from a base station, information carrying direct or indirect associations between preamble sequences and system information blocks (SIBs); selecting a corresponding preamble sequence based on one or a plurality of required SIBs and the received associations by at least one of: selecting a single preamble sequence associated with the greatest number of required SIBs; selecting a single preamble sequence associated with the fewest number of not-required SIBs; selecting one or a plurality of preamble sequences associated with the one or plurality of required SIBs having the fewest total number; and selecting, according to a priority of the one or plurality of required SIBs, different preamble sequences respectively associated with required SIBs of different priorities; and transmitting the selected preamble sequences to the base station.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: May 17, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Chongming Zhang, Shohei Yamada, Renmao Liu
  • Patent number: 11336329
    Abstract: A terminal apparatus includes a receiver and a transmitter. The receiver is configured to receive a radio resource control (RRC) parameter and a physical downlink control channel (PDCCH) including a downlink control information (DCI) format and scheduling a physical uplink shared channel (PUSCH). The transmitter is configured to transmit the PUSCH with frequency hopping within one slot. The RRC parameter indicates one or a plurality of frequency offset values. The PUSCH includes a first frequency hop and a second frequency hop within the one slot. In a case that a cyclic redundancy check (CRC) scrambled with or other than a temporary cell-radio network temporary identifier (TC-RNTI) is added to the DCI format, a frequency offset between the first frequency hop and the second frequency hop is based on a size of an initial uplink (UL) bandwidth part (BWP) or the RRC parameter, respectively.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: May 17, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Liqing Liu, Shohei Yamada, Hiroki Takahashi, Masayuki Hoshino, Hidekazu Tsuboi
  • Publication number: 20220148973
    Abstract: A through electrode substrate according to an embodiment of the present disclosure includes a substrate having a first surface, a second surface, and a through-hole that penetrates between the first surface and the second surface and a through electrode disposed inside of the through-hole. The through electrode includes a first portion that closes part of the through-hole adjacent to the first surface and a second portion disposed along the internal surface of the through-hole. The thinnest part of the first portion in a direction perpendicular to the first surface has a thickness of A, the thinnest part of the second portion has a thickness of B, and the diameter of the through-hole on the first surface has a length of C. The relationship A<C<A+B×2 is satisfied.
    Type: Application
    Filed: April 15, 2020
    Publication date: May 12, 2022
    Inventors: Hiroshi KUDO, Miyuki SUZUKI, Shohei YAMADA
  • Patent number: 11330482
    Abstract: A method for receiving a radio resource control (RRC) message by a user equipment (UE) is described. The method includes receiving, from a base station, an RRC connection reconfiguration message for adding a secondary cell group (SCG), wherein the RRC connection reconfiguration message includes data radio bearer (DRB) configuration parameters for remapping a DRB that is established on a master cell group (MCG), to the SCG; and remapping the DRB to the SCG based on the RRC connection reconfiguration message, wherein the DRB configuration parameters include a packet data convergence protocol (PDCP) configuration.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: May 10, 2022
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shohei Yamada