Patents by Inventor Wataru Ouchi

Wataru Ouchi 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: 11219007
    Abstract: A terminal apparatus includes a receiver configured to receive a PDCCH including downlink control information used for scheduling of a PUSCH, a coding unit configured to encode uplink control information, and a transmitter configured to transmit the uplink control information by using the PUSCH. A coding rate R and a modulation order Qm are given based on one field included in the downlink control information. The number Q of coded bits of the uplink control information is given at least based on the number Q? of coded modulation symbols for the uplink control information and the modulation order Qm. The number Q? of coded modulation symbols is given at least based on the coding rate R and the modulation order Qm.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: January 4, 2022
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Shoichi Suzuki, Tomoki Yoshimura, Wataru Ouchi, Taewoo Lee, Liqing Liu
  • Patent number: 11201713
    Abstract: A terminal apparatus receives a transport block in a primary cell, selects a first transmission method in a case that a scheduling request is a negative scheduling request, HARQ-ACK is transmitted in a subframe n, and a subframe q in a secondary cell does not correspond to any of first prescribed subframes, selects a second transmission method in a case that the subframe q corresponds to one of the first prescribed subframes, and transmits the HARQ-ACK in a PUCCH resource for the HARQ-ACK, wherein the subframe q is given by n?4 in a case that a first higher layer parameter for the secondary cell is not configured, and the subframe q is given by n?3 in a case that the first higher layer parameter for the secondary cell is configured for the terminal apparatus 1.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: December 14, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Liqing Liu, Shoichi Suzuki, Wataru Ouchi, Tomoki Yoshimura, Taewoo Lee
  • Publication number: 20210385831
    Abstract: A method for a user equipment (UE) which communicates with a base station is described. The method may comprise acquiring radio resource control (RRC) configuration information. The RRC configuration information may indicate one or more entries, each of the entries specifying a slot format. The method may also comprise receiving a physical signal and a physical downlink control channel (PDCCH) with a downlink control (DCI) format. The DCI format may include a first information field and a second information field. The first information field may indicate an entry out of the entries. The second information field may indicates channel occupancy status of all channel access bandwidths in a bandwidth part.
    Type: Application
    Filed: October 30, 2019
    Publication date: December 9, 2021
    Inventors: Toshizo NOGAMI, Daiichiro NAKASHIMA, Shoichi SUZUKI, Wataru OUCHI, Tomoki YOSHIMURA, Taewoo LEE, Huifa LIN
  • Publication number: 20210368528
    Abstract: Included are a receiver receiving a PDCCH and a PDSCH scheduled by the PDCCH, and a transmitter transmitting, on a PUCCH, one or multiple HARQ-ACKs including at least a HARQ-ACK corresponding to a TB included in the PDSCH and an SR. For the HARQ-ACK of two or less bits, a resource of the PUCCH is, from one or multiple PUCCH resources in a PUCCH resource set, based at least on a first value based at least on the number of bits of the one or multiple HARQ-ACKs transmitted in the PUCCH, regardless of the number of resources of the SR overlapping with the PUCCH. For the HARQ-ACK of more than two bits, the resource of the PUCCH is, from the one or multiple PUCCH resources in the PUCCH resource set, based at least on a sum of the number of bits of the one or multiple HARQ-ACKs and the SR.
    Type: Application
    Filed: March 12, 2019
    Publication date: November 25, 2021
    Inventors: TOMOKI YOSHIMURA, SHOICHI SUZUKI, WATARU OUCHI, LIQING LIU, TAEWOO LEE
  • Publication number: 20210360666
    Abstract: The present invention is capable of performing communication efficiently.
    Type: Application
    Filed: October 7, 2019
    Publication date: November 18, 2021
    Inventors: TOMOKI YOSHIMURA, DAIICHIRO NAKASHIMA, TOSHIZO NOGAMI, SHOICHI SUZUKI, WATARU OUCHI, TAEWOO LEE, HUIFA LIN
  • Publication number: 20210360687
    Abstract: A terminal apparatus includes a transmitter configured to transmit, in one uplink BWP of one serving cell, a first PUSCH corresponding to a configured uplink grant, and a receiver configured to receive, in one downlink BWP of the one serving cell, downlink control information to be used to schedule a second PUSCH on a PDCCH, in which, in a case that a duration of the first PUSCH overlaps a duration of the second PUSCH in the one uplink BWP, a first uplink symbol of the first PUSCH is expected to not be earlier than a first (next) uplink symbol at which a CP begins after a predetermined period of time after a last symbol of the PDCCH.
    Type: Application
    Filed: December 25, 2019
    Publication date: November 18, 2021
    Inventors: Shoichi SUZUKI, Tomoki YOSHIMURA, Toshizo NOGAMI, Wataru OUCHI, Taewoo LEE, Huifa LIN
  • Patent number: 11178720
    Abstract: A terminal apparatus receives higher layer signaling and a PDCCH. The higher layer signaling includes an RRC parameter for indicating a slot in which the PDCCH is to be monitored. The PDCCH includes slot structure information. The slot structure information indicates a slot structure for a slot n next to a slot in which the PDCCH is received. The terminal apparatus controls whether or not to monitor a PDCCH in the slot n, based on at least the RRC parameter and the slot structure information.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: November 16, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Liqing Liu, Shoichi Suzuki, Tomoki Yoshimura, Wataru Ouchi
  • Patent number: 11177927
    Abstract: The terminal apparatus receives a PHICH and a PDCCH, and in a case that transmission of a transport block corresponding to a first HARQ process and transmission of a transport block corresponding to a second HARQ process, each having a different processing time from reception of the PDCCH to transmission of a PUSCH, occur in an identical uplink subframe, an ACK is set as a state variable HARQ_FEEDBACK of the first HARQ process.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: November 16, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Liqing Liu, Shoichi Suzuki, Wataru Ouchi, Tomoki Yoshimura
  • Patent number: 11177866
    Abstract: To efficiently transmit channel state information. A terminal apparatus includes a receiver configured to receive information for configuring a first mode and information for configuring a second mode and receive an UL grant to be used for scheduling of a PUSCH and an UL grant to be used for scheduling of a sPUSCH; and transmits CSI on the PUSCH by using the first mode, based on the UL grant to be used for scheduling of the PUSCH, and transmits CSI on the sPUSCH by using the second mode, based on the UL grant to be used for scheduling of the sPUSCH.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: November 16, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Tatsushi Aiba, Shoichi Suzuki, Wataru Ouchi, Takashi Hayashi, Tomoki Yoshimura, Liqing Liu
  • Publication number: 20210352696
    Abstract: A terminal apparatus includes a receiver configured to monitor a PDCCH with a DCI format on an active downlink BWP in a serving cell in a Secondary Cell Group (SCG), the DCI format being used for scheduling a PDSCH, and receive the PDSCH on the downlink BWP, and a transmitter configured to transmit a HARQ-ACK on a PUCCH.
    Type: Application
    Filed: September 26, 2019
    Publication date: November 11, 2021
    Inventors: Tomoki YOSHIMURA, Shoichi SUZUKI, Toshizo NOGAMI, Wataru OUCHI, Taewoo LEE, Huifa LIN
  • Publication number: 20210351865
    Abstract: A terminal apparatus includes a transmitter configured to transmit capability information of the terminal apparatus, and a receiver configured to perform blind detection of a PDCCH from a search space in a control resource set, wherein in a case that a capability of blind detection is supported, the blind detection detecting the PDCCH from search spaces in control resource sets the number of which is greater than a prescribed number in a prescribed duration, the transmitter transmits, as the capability information of the terminal apparatus, at least two of pieces of information including (a) a maximum number of blind detections that can be performed in the prescribed duration, (b) a maximum number of blind detections in a unit time, (c) a maximum number of blind detections based on configuration for the control resource set, and (d) a maximum number of the control resource sets for which blind detections can be simultaneously performed.
    Type: Application
    Filed: August 9, 2018
    Publication date: November 11, 2021
    Inventors: Wataru OUCHI, Shoichi SUZUKI, Tomoki YOSHIMURA, Liqing LIU, Taewoo LEE, Daiichiro NAKASHIMA
  • Publication number: 20210352699
    Abstract: A terminal device for performing communication method, the terminal device comprising a receiver for receiving a PDCCH having a first DCI format; and a transmitter for transmitting a PUCCH including UCI, and a PUSCH. The transmitter multiplexes the UCI onto a first PUSCH dynamically scheduled via the first DCI format when the PUCCH conflicts with a first plurality of PUSCHs including the first PUSCH and a second PUSCH for semi-permanently transmitted CSI, and multiplexes the UCI onto a third PUSCH for aperiodically transmitted CSI when the PUCCH conflicts with the third PUSCH.
    Type: Application
    Filed: September 18, 2019
    Publication date: November 11, 2021
    Inventors: HUI-FA LIN, SHOICHI SUZUKI, TOMOKI YOSHIMURA, TAEWOO LEE, WATARU OUCHI, TOSHIZO NOGAMI
  • Publication number: 20210344448
    Abstract: A base station which communicates with a user equipment (UE) is described. The RRC configuration information may indicate that a maximum number of codewords scheduled by DCI is two. The base station may comprise transmitting circuitry configured to, after a channel access procedure, transmit, to the UE, a PDSCH which contains only a first transport block. The base station may further comprise receiving circuitry configured to receive, from the UE, a HARQ-ACK feedback including at least a first HARQ-ACK information bit and a second HARQ-ACK information bit. The first HARQ-ACK information bit may correspond to the first transport block of the PDSCH. The second HARQ-ACK information bit may be set to NACK. A contention window for the channel access procedure may be adjusted using the HARQ-ACK feedback, wherein the second HARQ-ACK information bit may be ignored.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 4, 2021
    Applicants: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: TOSHIZO NOGAMI, DAIICHIRO NAKASHIMA, SHOICHI SUZUKI, WATARU OUCHI, TOMOKI YOSHIMURA, TAEWOO LEE, HUIFA LIN
  • Publication number: 20210337597
    Abstract: In a case that transmission of a PUSCH is transmission of the PUSCH in a 2 step contention based random access procedure, the complex-valued symbol is not mapped to the resource element of last one or more prescribed SC-FDMA symbols in the prescribed subframe, and in a case that the transmission of the PUSCH is not the transmission of the PUSCH in the 2 step contention based random access procedure and a first field (PUSCH ending symbol) included in downlink control information for indicating the transmission of the PUSCH indicates 1, the complex-valued symbol is not mapped to the resource element of a last SC-FDMA symbol in the prescribed subframe.
    Type: Application
    Filed: January 26, 2018
    Publication date: October 28, 2021
    Inventors: Tomoki YOSHIMURA, Shoichi SUZUKI, Wataru OUCHI, Liqing LIU
  • Patent number: 11160091
    Abstract: A cell using an allocated frequency band, a non-allocated frequency band, or a shared frequency band is controlled efficiently. A higher layer processing unit configured to configure a first configuration for monitoring an Enhanced Physical Downlink Control CHannel (EPDCCH) and a second configuration for measuring a Discovery Signal (DS); a reception processing unit configured to monitor a candidate of the EPDCCH, based on the first configuration; and a detection unit configured to detect the DS in a prescribed subframe to be determined, based on the second configuration are provided. In a case that simultaneous transmissions on the EPDCCH and the DS occur in a Licensed Assisted Access (LAA) cell, the EPDCCH is mapped onto a resource element different from a resource element corresponding to the DS in the prescribed subframe.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 26, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazuyuki Shimezawa, Naoki Kusashima, Wataru Ouchi, Takashi Hayashi
  • Publication number: 20210329693
    Abstract: A method for a base station which communicates with a user equipment (UE) in a bandwidth including a plurality of channel access sub-bands in a serving cell is described. The method may comprise sensing each of the plurality of the channel access sub-bands. The method may also comprise transmitting downlink signal after sensing. A counter and a contention window size may be managed per sub-band for channel access.
    Type: Application
    Filed: September 25, 2019
    Publication date: October 21, 2021
    Inventors: TOSHIZO NOGAMI, DAIICHIRO NAKASHIMA, SHOICHI SUZUKI, WATARU OUCHI, TOMOKI YOSHIMURA, TAEWOO LEE, HUIFA LIN
  • Publication number: 20210321432
    Abstract: A terminal apparatus includes a receiver configured to receive a physical downlink shared channel and a transmitter configured to multiplex first channel state information having a higher priority than second channel state information with the second channel state information and an HARQ-ACK and to transmit the first channel state information, the second channel state information and the HARQ-ACK multiplexed, by using a physical uplink control channel resource.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 14, 2021
    Inventors: Tomoki YOSHIMURA, Shoichi SUZUKI, Wataru OUCHI, Taewoo LEE, Huifa LIN, Toshizo NOGAMI
  • Patent number: 11140700
    Abstract: A communication method used by a terminal apparatus includes the step of separately generating first coded bits fk of a transport block, second coded bits q0 of control information, and third coded bits q1 of a rank indicator, and multiplexing the first coded bits fk and the second coded bits q0 to generate multiplexed bits gk, and the step of multiplexing the multiplexed bits gk and the third coded bits q1 to generate a first sequence hk, wherein the position where the third coded bits q1 are mapped is given at least based on a part of a first condition, a second condition, and a third condition, the first condition is whether a search space detecting the PDCCH is a CSS or a USS, the second condition is which RNTI is used to scramble CRC parity bits attached to the DCI format, and the third condition is whether the first method or the second method is used for the first coded bits.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: October 5, 2021
    Assignees: SHARP KABUSHIKI KAISHA, FG INNOVATION COMPANY LIMITED
    Inventors: Tomoki Yoshimura, Shoichi Suzuki, Wataru Ouchi, Liqing Liu, Kimihiko Imamura
  • Patent number: 11134451
    Abstract: A terminal apparatus in an initial access calculates, from the RSRP of the SS block, a downlink path loss used for transmission power of the PRACH, and determines a reference used for the downlink path loss used for transmission power of a first PUSCH scheduled by a random access response grant, based on system information included in the random access response grant, wherein the system information further includes a first parameter for indicating a subcarrier spacing for the first PUSCH and a second parameter for indicating a signal waveform for the first PUSCH.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: September 28, 2021
    Assignees: FG Innovation Company Limited, Sharp Kabushiki Kaisha
    Inventors: Wataru Ouchi, Tomoki Yoshimura, Shoichi Suzuki, Liqing Liu
  • Patent number: 11134479
    Abstract: When a terminal device receives a MAC CE indicating activation of a second cell in subframe n and an action of monitoring a PDCCH for a first cell is not applied in subframe n+8, an action related to CSI reporting for the second cell on a PUCCH is applied in a subframe that is no earlier than subframe n+8 and in which an action of monitoring the PDCCH for the first cell is applied. When the terminal device receives the MAC CE indicating activation of the second cell in subframe n, the action related to the CSI reporting for the second cell on the PUCCH is applied in subframe n+8, irrespective of whether the action of monitoring the PDCCH for the first cell is applied in subframe n+8.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: September 28, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shoichi Suzuki, Tatsushi Aiba, Kazunari Yokomakura, Hiroki Takahashi, Wataru Ouchi, Naoki Kusashima