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).

  • Patent number: 11930489
    Abstract: Aspects of this disclosure provide methods, devices and systems for concurrently transmitting control information and data information. In some more specific aspects, a base station may transmit one or more parameters to a user equipment (UE) that indicate to the UE to refrain from transmitting uplink control information together with uplink data information in an uplink data channel. Instead, the one or more parameters may configure the UE to transmit the uplink control information and the uplink data information using overlapping resources in different channels. In some more specific aspects, the UE may transmit the uplink control information in a slot of an uplink control channel and transmit the uplink data information in a slot of the uplink data channel that at least partially overlaps with the slot of the uplink control channel.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: March 12, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Kazuki Takeda, Mostafa Khoshnevisan, Seyedkianoush Hosseini, Peter Gaal
  • Patent number: 11930502
    Abstract: A terminal is disclosed including a receiver that monitors downlink control channel candidates in a predetermined frequency bandwidth out of a plurality of frequency bandwidths; and a processor that performs a control to change the predetermined frequency bandwidth in accordance with a predetermined timer. In another aspect, a radio communication method is also disclosed.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: March 12, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Kazuaki Takeda, Satoshi Nagata, Qin Mu, Lihui Wang
  • Publication number: 20240080838
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information that indicates an uplink transmit switching configuration for performing uplink transmit switching between a first component carrier and a second component carrier and a sounding reference signal (SRS) carrier switching configuration for performing SRS carrier switching between the second component carrier and a third component carrier, wherein the configuration information is associated with a maximum number of allowable switches over an amount of time. The UE may transmit, based at least in part on the configuration information, one or more signals associated with performing at least one of uplink transmit switching or SRS carrier switching. Numerous other aspects are described.
    Type: Application
    Filed: March 12, 2021
    Publication date: March 7, 2024
    Inventors: Yiqing CAO, Peter GAAL, Alberto RICO ALVARINO, Enoch Shiao-Kuang LU, Wanshi CHEN, Kazuki TAKEDA, Bin HAN, Yan LI, Zhimin DU
  • Patent number: 11924139
    Abstract: In order to properly transmit UCI, even when PUCCH repetition transmission is used in future radio communication systems, a user terminal according to one aspect of the present disclosure includes a control section that determines a codebook for physical uplink control channel (PUCCH) transmission per slot, based on at least one of physical downlink shared channel (PDSCH) candidate occasions, a timing of hybrid automatic repeat request acknowledgement (HARQ-ACK) transmission corresponding to a received PDSCH and a PUCCH repetition factor, when PUCCH repetition transmission and a semi-static HARQ-ACK codebook are configured; and a transmitting section that transmits HARQ-ACK based on the codebook by applying the PUCCH repetition transmission.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 5, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Shaozhen Guo, Xiaolin Hou
  • Publication number: 20240073830
    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may report power headroom for uplink carrier aggregation communications. The UE may receive a first message that indicates multiple component carriers are configured for communications at the UE. The UE may determine a first transmission power available for uplink carrier aggregation transmissions by the UE across the multiple component carriers during a transmission occasion. The UE may transmit one or more uplink messages associated with a second transmission power via one or more of the component carriers. The UE may transmit a power headroom report that includes a carrier aggregation power headroom parameter. A value of the carrier aggregation power headroom parameter may be based on the first transmission power and the second transmission power associated with uplink carrier aggregation transmissions via at least one of the multiple component carriers during the transmission occasion.
    Type: Application
    Filed: August 25, 2022
    Publication date: February 29, 2024
    Inventors: Gokul Sridharan, Kazuki Takeda, Peter Gaal, Wanshi Chen
  • Patent number: 11917618
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive an indication of a first set of resources for feedback and an indication of a second set of resources for feedback, where the second set of resources are associated with a smaller quantity of cyclic shifts than the first set of resources. Accordingly, the mobile station may transmit feedback on either the first set of resources or the second set of resources based at least in part on a distance associated with the feedback. As an alternative, the mobile station may compute a timing advance associated with transmission of feedback. Accordingly, the mobile station may feedback that is shifted in time according to the timing advance. Numerous other aspects are described.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: February 27, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Chiranjib Saha, Le Liu, Alberto Rico Alvarino, Vishnu Vardhan Chetlur Ravi, Kazuki Takeda, Umesh Phuyal, Xiao Feng Wang, Peter Gaal, Gabi Sarkis
  • Patent number: 11910378
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, for a secondary cell and a primary cell where cross-carrier scheduling is to occur from the secondary cell to the primary cell, whether a quantity of downlink control information (DCI) sizes for a set of DCIs that the UE monitors satisfies a threshold, wherein the threshold is a per scheduling cell per scheduled cell threshold or a per scheduled cell threshold. The UE may selectively perform a DCI size alignment procedure to adjust a DCI size configuration based at least in part on whether the quantity of DCI sizes satisfies the threshold. The UE may monitor for the set of DCIs based at least in part on the DCI size configuration. Numerous other aspects are provided.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Kazuki Takeda, Alberto Rico Alvarino, Le Liu
  • Patent number: 11910219
    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 configuration of a set of resource elements for Long Term Evolution (LTE) cell-specific reference signal (LTE-CRS) interference measurements associated with one or more neighboring LTE cells. The UE may perform the LTE-CRS interference measurements on the set of resource elements. The UE may transmit, to the base station, an interference measurement indication based at least in part on the LTE-CRS interference measurements. Numerous other aspects are described.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Kazuki Takeda, Alberto Rico Alvarino, Yosuke Sano
  • Patent number: 11909696
    Abstract: A terminal is disclosed including a transmitter that performs an uplink (UL) transmission; and a receiver that performs a downlink (DL) reception, wherein the transmitter does not perform the UL transmission in a period after a last symbol of the DL reception. In other aspects, a radio communication method, a base station, and a system are also disclosed.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: February 20, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Shaozhen Guo, Xiaolin Hou
  • Patent number: 11910385
    Abstract: Mechanisms for cross-carrier scheduling from a first cell to a second cell in a wireless networking scheme are provided. In one aspect, a method for wireless communication includes: receiving, from a base station (BS), a first configuration for scheduling in a first cell, the first configuration comprising at least one of a first monitoring periodicity parameter or a first monitoring offset parameter associated with a search space in a second cell different than the first cell; receiving, from the BS, a second configuration for scheduling in the second cell, the second configuration comprising at least one of a different second monitoring periodicity parameter or a different second monitoring offset parameter associated with the search space in the second cell; and monitoring, in the search space in the second cell based on the first configuration and the second configuration, for downlink control information (DCI).
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Kazuki Takeda, Alberto Rico Alvarino, Peter Gaal, Wanshi Chen, Tao Luo, Jing Sun, Juan Montojo, Mostafa Khoshnevisan
  • Publication number: 20240057090
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, an indication of one of: a quantity of physical uplink control channel (PUCCH) resources in a PUCCH slot for negative acknowledgement (NACK)-only-based multicast feedback, or a quantity of transport blocks (TBs) with the NACK-only-based multicast feedback to be multiplexed in the PUCCH slot. The UE may determine, based at least in part on the indication, the quantity of PUCCH resources in the PUCCH slot for the NACK-only-based multicast feedback. The UE may determine a physical downlink shared channel (PDSCH) processing timeline. The UE may transmit, to the network node, the NACK-only-based multicast feedback using the quantity of PUCCH resources and based at least in part on the PDSCH processing timeline. Numerous other aspects are described.
    Type: Application
    Filed: June 16, 2023
    Publication date: February 15, 2024
    Inventors: Le LIU, Alberto RICO ALVARINO, Ayan SENGUPTA, Peter GAAL, Kazuki TAKEDA
  • Publication number: 20240056134
    Abstract: Aspects of the disclosure provide techniques and apparatuses for improving reception of concurrent transmissions from different network entities. A user equipment may receive a first instance of a transmission in a first component carrier from a first network entity and also receive a second instance of the transmission in a second component carrier from a second network entity. The UE may then dynamically adjust a number of receivers used for the reception of the first component carrier and the reception of the second component carrier based on whether a receive time difference, between receipt of the first instance of the transmission and receipt of the second instance of the transmission, exceeds a maximum receive time difference (e.g., a cyclic prefix duration of the transmission).
    Type: Application
    Filed: August 11, 2023
    Publication date: February 15, 2024
    Inventors: Valentin Alexandru GHEORGHIU, Kazuki TAKEDA
  • Publication number: 20240056246
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, a multi-cell downlink control information (MC-DCI) that indicates scheduling information for scheduling channels on multiple component carriers (CCs). The UE may transmit, to the network node, channel state information (CSI) feedback for a set of cells scheduled by the MC-DCI based at least in part on a radio resource control (RRC) configuration. Numerous other aspects are described.
    Type: Application
    Filed: August 10, 2022
    Publication date: February 15, 2024
    Inventors: Kazuki TAKEDA, Peter GAAL, Mostafa KHOSHNEVISAN, Wanshi CHEN, Jae Ho RYU
  • Publication number: 20240057094
    Abstract: Methods, systems, and devices for wireless communications are described for uplink shared channel resource allocation for multi-cell scheduling. A user equipment (UE) may receive a downlink control information (DCI) message including a first set of bits and a second set of bits defining resource allocation across multiple network entities, as well as indicating that uplink shared channel messages to a first network entity and a second network entity are scheduled according to a resource allocation type. The first set of bits may indicate one or more resource block indices and the second set of bits may indicate one or more resource block set indices. The UE may transmit the uplink shared channel messages to the first network entity and the second network entity according to the first set of bits and the second set of bits.
    Type: Application
    Filed: August 9, 2022
    Publication date: February 15, 2024
    Inventors: Kazuki Takeda, Mostafa Khoshnevisan
  • Publication number: 20240056150
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a secondary cell activation command that indicates a semi-persistent channel state information (CSI) reference signal (CSI-RS) resource set of a secondary cell. The UE may receive, from the secondary cell, a semi-persistent CSI-RS using the semi-persistent CSI-RS resource set based at least in part on receiving the secondary cell activation command. Numerous other aspects are provided.
    Type: Application
    Filed: April 14, 2021
    Publication date: February 15, 2024
    Inventors: Fang YUAN, Yan ZHOU, Kazuki TAKEDA, Tao LUO
  • Publication number: 20240057096
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network node, a multi-cell downlink control information (MC-DCI) that indicates scheduling information for co-scheduled component carriers (CCs), wherein the MC-DCI indicates one or more of an antenna port(s) field or a modulation and coding scheme (MCS) field to be commonly applied to one or more of the co-scheduled CCs. The UE may perform a transmission based at least in part on the scheduling information indicated by the MC-DCI. Numerous other aspects are described.
    Type: Application
    Filed: August 10, 2022
    Publication date: February 15, 2024
    Inventors: Kazuki TAKEDA, Peter GAAL, Mostafa KHOSHNEVISAN, Wanshi CHEN, Jae Ho RYU
  • Publication number: 20240056978
    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit uplink transmission using antenna elements mapped to one or more antenna ports. The UE may transmit a first message to a network entity to indicate antenna ports that are available for wireless communications at the UE. The UE may transmit a second message to the network entity to indicate antenna groups associated with the antenna ports. Each antenna group may include a respective set of one or more antenna elements and may be associated with a respective transmit power threshold. The network entity may select a first antenna group of the one or more antenna groups for the UE to use for uplink transmissions. The UE may transmit, after transmitting the first and second messages, one or more uplink transmissions to the network entity using the first antenna group.
    Type: Application
    Filed: August 12, 2022
    Publication date: February 15, 2024
    Inventors: Gokul Sridharan, Kazuki Takeda, Tienyow Liu, Peter Gaal
  • Patent number: 11902958
    Abstract: A terminal is disclosed communicating using a first carrier performing at least Downlink (DL) transmission and a second carrier performing only Uplink (UL) transmission. The terminal includes a receiver that receives an indication regarding a UL, the indication included in downlink control information (DCI) that is reported from the first carrier and a processor that transmits a UL signal using the UL based on the indication. In other aspects, a radio communication method, a base station, and a system are also disclosed.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: February 13, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuaki Takeda, Kazuki Takeda, Satoshi Nagata
  • Patent number: 11902989
    Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving, from a base station and at the UE of a group of UEs, control signaling indicating a link between a first search space set and a second search space set used for a multicast broadcast service, where a first downlink control channel for the group of UEs is transmitted in the first search space set and a second downlink control channel is transmitted in the second search space set, monitoring the first search space set for a first instance of control information in the first downlink control channel and the second search space set for a second instance of the control information in the second downlink control channel, and decoding the first instance or the second instance of the control information, or both, based on the monitoring.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: February 13, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Le Liu, Mostafa Khoshnevisan, Alberto Rico Alvarino, Kazuki Takeda, Prasad Reddy Kadiri, Umesh Phuyal
  • Patent number: 11902968
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a maximum transmission power for an uplink transmission on a first cell of a first cell group (CG) based on a direction of communications (e.g., uplink, downlink, or flexible) with a separate cell of a second CG during a same duration of the uplink transmission and within a same first frequency range, where the direction of communications is either an actual direction or an assumed direction. The UE may receive an uplink grant scheduling the uplink transmission during a symbol and within the first frequency range, determine the maximum transmission power for the UE based on the direction of communications for the separate cell during the symbol and within the first frequency range, and subsequently transmit the uplink transmission in accordance with the maximum transmission power.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: February 13, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Kazuki Takeda, Seyedkianoush Hosseini