Patents by Inventor Kazuki Takeda

Kazuki Takeda 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: 20230309122
    Abstract: Various aspects provide a method for radio resource allocation to support multicast services from a 5G-NR base station. In some aspects, the method may be performed by a processor of the base station. Various aspects include determining a multicast bandwidth part (BWP) within a carrier bandwidth, sending an indication of the multicast BWP to one or more user equipment (UE) computing devices in communication with the base station, and scheduling transmission of multicast data in the multicast BWP.
    Type: Application
    Filed: May 23, 2023
    Publication date: September 28, 2023
    Inventors: Kazuki TAKEDA, Le LIU, Prasad Reddy KADIRI, Ayan SENGUPTA, Alberto RICO ALVARINO, Xiaoxia ZHANG, Tao LUO, Mostafa KHOSHNEVISAN, Jing SUN, Xipeng ZHU, Wooseok NAM, Wanshi CHEN, Amer CATOVIC
  • Publication number: 20230308221
    Abstract: Embodiments include systems and methods for supporting for supporting retransmission in a multicast session in a Fifth Generation (5G) New Radio (NR) (5G NR) radio access network (RAN). Various embodiments may provide an enhanced multicast radio bearer (MRB) architecture leveraging Packet Data Convergence Protocol (PDCP) status reporting by wireless devices to a base station of a 5G NR RAN. Various embodiments may support multiple Radio Link Control (RLC) entities, also referred to as RLC legs, in a multicast session. One or more multicast RLC legs may be used for multicast and/or unicast transmission to wireless devices and a unicast RLC leg may be used for unicast transmission to a specific wireless device. Various embodiments may enable PDCP level retransmission of PDCP protocol data units (PDUs).
    Type: Application
    Filed: August 3, 2020
    Publication date: September 28, 2023
    Inventors: Prasad Reddy KADIRI, Ruiming ZHENG, Alberto RICO ALVARINO, Umesh PHUYAL, Xipeng ZHU, Le LIU, Kazuki TAKEDA, Changlong XU
  • Publication number: 20230300874
    Abstract: Aspects described herein relate to indicating search spaces and/or control information formats for receiving multicast/broadcast service (MBS) downlink control information (DCI). A device can receive a search space configuration defining one or more search spaces for detecting communications intended for a group of one or more user equipment (UEs), determine a priority for detecting control information transmitted over a control channel based on the one or more search spaces, and perform, based on the priority, detection for the control information over the control channel based on the one or more search spaces and/or the other defined search spaces.
    Type: Application
    Filed: March 23, 2023
    Publication date: September 21, 2023
    Inventors: Le LIU, Alberto RICO ALVARINO, Peter GAAL, Xiaoxia ZHANG, Tao LUO, Kazuki TAKEDA, Prasad Reddy KADIRI, Ayan SENGUPTA, Umesh PHUYAL
  • Publication number: 20230284010
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a UE capability information request message. The UE may transmit, to the network entity in response to the UE capability information request message, a UE capability information message indicating one or more antenna capabilities of the UE. Numerous other aspects are described.
    Type: Application
    Filed: February 27, 2023
    Publication date: September 7, 2023
    Inventors: Chiranjib SAHA, Alberto RICO ALVARINO, Umesh PHUYAL, Le LIU, Kazuki TAKEDA, Peter GAAL
  • Publication number: 20230284134
    Abstract: This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for multi-cell scheduling for power saving. A UE may receive a configuration of one or more first parameters for control channel monitoring based on a first type of scheduling and one or more second parameters for the control channel monitoring based on a second type of scheduling. The UE may monitor for DCI of the first type of scheduling based on a first condition of a scheduling cell and switch from monitoring for the DCI of the first type of scheduling to monitoring for the DCI of the second type of scheduling based on a second condition of a scheduled cell. The UE may receive scheduling information for at least one of a PDSCH or a PUSCH based on the second type of scheduling.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 7, 2023
    Inventors: Kazuki TAKEDA, Huilin XU, Peter GAAL, Masato KITAZOE
  • Publication number: 20230268968
    Abstract: A configuration of cross-carrier channel state information (CSI) reporting is disclosed. A user equipment (UE) may be configured for CSI reporting, which includes multiple trigger states, in which some of these trigger states include at least one carrier indicator identifying at least one component carrier (CC) for CSI measurement. Upon receipt of a downlink control information (DCI) message including identification of one of the trigger states, the UE identifies at least one CSI report configuration which may be identified with an associated CC and identification of at least one CSI resource setting identified with the CC for each of the CSI report configurations. The UE may then perform CSI measurement for the identified CC based on the CSI report configuration and resource setting. The UE may then signal the CSI report, including the CSI measurement, to a serving base station.
    Type: Application
    Filed: August 7, 2020
    Publication date: August 24, 2023
    Inventors: Yu Zhang, Chenxi Hao, Kazuki Takeda, Lei Xiao, Alexandros Manolakos, Huilin Xu
  • Publication number: 20230261805
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, configuration information associated with a semi-static hybrid automatic repeat request (HARQ) feedback codebook for multicast messages. The UE may receive, from the network entity, a physical downlink control channel (PDCCH) message, associated with a radio network temporary identifier (RNTI), scheduling one or more multicast physical downlink shared channel (PDSCH) messages. The UE may transmit, to the network entity, one or more fallback HARQ feedback indications, associated with the one or more multicast PDSCH messages, in lieu of transmitting the semi-static HARQ feedback codebook, in accordance with the configuration information and associated with at least one of the RNTI or a feedback configuration associated with the RNTI. Numerous other aspects are provided.
    Type: Application
    Filed: January 4, 2023
    Publication date: August 17, 2023
    Inventors: Le LIU, Kazuki TAKEDA, Alberto RICO ALVARINO, Peter GAAL
  • Publication number: 20230261843
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, an uplink grant for a physical uplink shared channel (PUSCH) that is to overlap in time with a physical uplink control channel (PUCCH) used for hybrid automatic repeat request (HARQ) feedback for at least multicast, the uplink grant including a downlink assignment index (UL-DAI) indication that indicates at least one of: whether the HARQ feedback of the PUCCH is to be multiplexed on the PUSCH, or a size for the HARQ feedback. The apparatus may communicate, with the network entity, in accordance with the UL-DAI indication. Numerous other aspects are described.
    Type: Application
    Filed: November 22, 2022
    Publication date: August 17, 2023
    Inventors: Le LIU, Alberto RICO ALVARINO, Mostafa KHOSHNEVISAN, Peter GAAL, Kazuki TAKEDA
  • Publication number: 20230256884
    Abstract: The vehicle floor structure includes a left rocker disposed on a side surface of the vehicle, a front floor cross member having a hat-shaped cross section composed of the upper open groove portion and the rear upper flange and the front upper flange, and a front connecting member for connecting the left rocker and the front floor cross member. The left rocker is arranged so that the height of the upper surface is lower than the rear upper flange and the front upper flange of the front floor cross member. Front connecting member has a hat-shaped cross section composed of a lower open groove portion and a rear lower flange, a front lower flange. The front connecting member connects the upper surface of the left rocker, the upper rear flange of the front floor cross member, and the upper front flange.
    Type: Application
    Filed: February 13, 2023
    Publication date: August 17, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuki OHTAKE, Norimasa Koreishi, Hideo Takeda
  • Publication number: 20230249526
    Abstract: A vehicle side structure comprising a pair of rockers and a floor panel, the floor panel being provided with a through hole that penetrates the floor panel vertically, each of the pair of rockers having a inclined surface that inclines obliquely downward and outward of vehicle width direction at the outer corners of the rocker below through hole.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 10, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuki OHTAKE, Norimasa KOREISHI, Hideo TAKEDA
  • Publication number: 20230254781
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may select an uplink transmission power sharing configuration to use for transmission of one or more uplink messages. The uplink transmission power sharing configuration may be based on a first uplink transmission power capability of a first radio frequency (RF) chain of the UE and on a second uplink transmission power capability of a second RF chain of the UE. The UE may transmit the one or more uplink messages to a network entity in accordance with the uplink transmission power sharing configuration. Specifically, the UE may transmit the one or more uplink messages via the first RF chain using a first transmission power, and may transmit the one or more uplink messages via the second RF chain using a second transmission power that is different from the first transmission power.
    Type: Application
    Filed: February 10, 2022
    Publication date: August 10, 2023
    Inventors: Gokul Sridharan, Kazuki Takeda, Peter Gaal, Muhammad Sayed Khairy Abdelghaffar, Wanshi Chen
  • Publication number: 20230254734
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a multicast message or a broadcast message that uses a radio link control (RLC) format associated with an RLC acknowledged mode (RLC-AM). The UE may decode the multicast message or the broadcast message to identify information associated with an RLC unacknowledged mode (RLC-UM) based at least in part on a capability of the UE. The UE may operate in accordance with the RLC-UM based at least in part on decoding the multicast message or the broadcast message. Numerous other aspects are provided.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 10, 2023
    Inventors: Umesh PHUYAL, Alberto RICO ALVARINO, Prasad Reddy KADIRI, Le LIU, Kazuki TAKEDA
  • Publication number: 20230246755
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive, while the UE is in wireless communications with a first serving cell supported by a base station, an indication to activate or deactivate a second serving cell supported by the base station. The UE may receive a reference signal from the base station via the first serving cell, the reference signal received a duration of time after receipt of the indication, where the duration of time is an interruption period for the wireless communications with the first serving cell. The UE may then resume the wireless communications with the first serving cell based on the interruption period ending at receipt of the reference signal.
    Type: Application
    Filed: April 6, 2023
    Publication date: August 3, 2023
    Inventors: Kazuki Takeda, Changhwan Park
  • Publication number: 20230231651
    Abstract: Methods, systems, and devices for wireless communications are described. The method may include a user equipment (UE) receiving, from a base station, signaling configuring the UE with a semi-persistent (SP) channel state information reference signal (CSI-RS) resource set. Additionally, the UE may receive, from the base station, signaling configuring the UE to communicate using multicast signaling via a multicast downlink shared channel. The UE may receive an activation command activating the SP CSI-RS resource set. The UE may apply a rule and based on the activation command and the rule perform rate matching on the multicast downlink shared channel around either multicast or unicast resources of the CSI-RS resource set.
    Type: Application
    Filed: September 28, 2022
    Publication date: July 20, 2023
    Inventors: Kazuki Takeda, Le Liu, Peter Gaal, Alberto Rico Alvarino
  • Publication number: 20230224104
    Abstract: Methods, systems, and devices for wireless communications are described. A device may identify a transport block (TB) size for a TB that is scheduled across a set of component carriers (CCs) including a first CC and a second CC. The TB may include a first code block (CB) and a second CB. The device may rate match the TB with the set of CCs. Based on the rate matching, the device may identify redundancy portions of the first CB and redundancy portions of the second CB. The device may allocate a first redundancy portion of the first CB and a first redundancy portion of the second CB to the first CC, and may allocate a second redundancy portion of the first CB and a second redundancy portion of the second CB to the second CC. The device may transmit the TB over the set of CCs based on the allocating.
    Type: Application
    Filed: January 11, 2022
    Publication date: July 13, 2023
    Inventors: Alberto Rico Alvarino, Peter Gaal, Kazuki Takeda, Wanshi Chen, Mostafa Khoshnevisan, Ayan Sengupta, Jing Sun, Juan Montojo
  • Publication number: 20230224991
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine whether an uplink communication for a first radio access technology (RAT) has been dynamically scheduled or semi-statically configured, wherein the UE is in a dual connectivity mode using the first RAT and a second RAT. The UE may identify an uplink subframe for transmission of the uplink communication based at least in part on whether the uplink communication has been dynamically scheduled or semi-statically configured, and based at least in part on a downlink-reference uplink-downlink configuration. The UE may transmit the uplink communication in the identified uplink subframe. Numerous other aspects are provided.
    Type: Application
    Filed: March 16, 2023
    Publication date: July 13, 2023
    Inventors: Kazuki TAKEDA, Seyedkianoush HOSSEINI, Alberto RICO ALVARINO, Wanshi CHEN, Xiao Feng WANG, Peter GAAL
  • Publication number: 20230217428
    Abstract: A wireless communication device can flexibly change subcarrier spacing (SCS) and/or cyclic prefix (CP) in wireless communication. The wireless communication device can transmit, in a first sidelink resource of a sidelink resource pool, a first sidelink transmission using a first configuration of suhcarrier spacing (SCS) and cyclic prefix (CP). The wireless communication device can further transmit, in a second sidelink resource of the sidelink resource pool., a second sidelink transmission using a second configuration of SCS and CP, the second configuration being different from the first configuration in terms of at least one of an SCS or a CP. The techniques allow more efficient switching between SCS and CP configurations withing a resource pool, in the same bandwidth part.
    Type: Application
    Filed: January 4, 2022
    Publication date: July 6, 2023
    Inventors: Chiranjib SAHA, Le LIU, Alberto RICO ALVARINO, Umesh PHUYAL, Kazuki TAKEDA, Vishnu Vardhan CHETLUR RAVI, Peter GAAL, Xiao Feng WANG
  • Patent number: 11689266
    Abstract: To appropriately control CSI reporting even in a case of performing CSI reporting by employing a method different from ones for existing LTE systems, one aspect of a user terminal of the present invention includes a transmitting section that transmits channel state information, and a control section that controls transmission of the channel state information by using certain downlink control information indicating trigger and/or activation of channel state information without scheduling data.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: June 27, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Chongning Na, Lihui Wang
  • Patent number: 11689893
    Abstract: Methods, systems, and devices for multicast wireless communications are described. A base station may configure a user equipment (UE) for providing feedback for multicast transmissions from the base station while the UE is in an inactive or idle mode. Based on a configuration sent to the UE from the base station, the UE may determine resources or a timing advance (TA) to use for transmission of a feedback message for multicast communications. A base station may configure a UE with multiple TA commands, each corresponding to a TA value and a set of channel metrics associated with group of cells including a serving cell of the UE. Based on measure channel metrics at the UE, the UE may determine a TA to use for multicast feedback. TA values may be determined using neural network modeling.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: June 27, 2023
    Assignee: QUALCOMM INCORPORATED
    Inventors: Xiaoxia Zhang, Ayan Sengupta, Le Liu, Alberto Rico Alvarino, Peter Gaal, Juan Montojo, Tao Luo, Mostafa Khoshnevisan, Kazuki Takeda
  • Patent number: 11690081
    Abstract: Various aspects provide a method for radio resource allocation to support multicast services from a 5G-NR base station. In some aspects, the method may be performed by a processor of the base station. Various aspects include determining a multicast bandwidth part (BWP) within a carrier bandwidth, sending an indication of the multicast BWP to one or more user equipment (UE) computing devices in communication with the base station, and scheduling transmission of multicast data in the multicast BWP.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: June 27, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Kazuki Takeda, Le Liu, Prasad Reddy Kadiri, Ayan Sengupta, Alberto Rico Alvarino, Xiaoxia Zhang, Tao Luo, Mostafa Khoshnevisan, Jing Sun, Xipeng Zhu, Wooseok Nam, Wanshi Chen, Amer Catovic