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: 20240113831
    Abstract: Aspects of the present disclosure allow for more efficient rate matching by allowing a triggered A-ZP-CSI-RS set to support rate matching around multiple slots. Aspects of the present disclosure may allow a triggered A-ZP CSI-RS set to be applied to less than all scheduled PDSCH slots when DCI schedules PDSCH on multiple slots. Aspects of the present disclosure may extend CSI-RS resource mapping to span multiple adjacent slots. In another instance, aspects of the present disclosure allow a resource mapping configuration to indicate an initial symbol of a plurality of symbols spanning the plurality of slots for a respective A-ZP-CSI-RS resource. Doing so also allows a PDSCH transmission in a slot among the plurality of slots using a rate matching pattern associated with a set of A-ZP-CSI-RE resources to be received. In addition, aspects of the present disclosure can also add periodicity to A-ZP-CSI-RS resource set configuration.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 4, 2024
    Inventors: Jae Ho RYU, Kazuki TAKEDA, Hobin KIM, Hari SANKAR
  • Publication number: 20240113761
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a UE capability for using one or more transmit antenna configuration sets for uplink beams. The UE may receive a radio resource control configuration associated with uplink transmission with an uplink beam. Numerous other aspects are described.
    Type: Application
    Filed: June 26, 2023
    Publication date: April 4, 2024
    Inventors: Le LIU, Alberto RICO ALVARINO, Peter GAAL, Chiranjib SAHA, Xiao Feng WANG, Wanshi CHEN, Umesh PHUYAL, Kazuki TAKEDA, Changhwan PARK
  • Publication number: 20240114589
    Abstract: Methods, systems, and devices for wireless communications are described, in which a communication device (e.g., a user equipment (UE), a network entity) may perform carrier aggregation, and cross-carrier scheduling provides that a first carrier may provide scheduling information for one or more other carriers, in which the one or more other carriers may have different discontinuous reception (DRX) configurations than the first carrier. One or more DRX-related timers of different DRX groups may be started or restarted based on a control information reception on the first carrier, or on a different carrier of a different DRX group. Additionally, or alternatively, control information transmissions on the first carrier may be provided based on one or more DRX-related timers that are associated with the first carrier, or that are associated with a carrier of another DRX group than the DRX group of the first carrier, or any combinations thereof.
    Type: Application
    Filed: July 13, 2023
    Publication date: April 4, 2024
    Inventors: Kazuki TAKEDA, Heechoon LEE, Jae Ho RYU, Changhwan PARK, Alberto Rico Alvarino
  • Publication number: 20240114320
    Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may receive a feedback configuration for providing feedback for downlink communications from a base station. Based on the feedback configuration, the UE may determine whether one or more feedback processes has a multicast-only configuration for multicast data communications, or a multicast-or-unicast configuration for either multicast data communications or unicast data communications. The UE may decode one or more transmissions associated with the one or more feedback processes based on the multicast-only or multicast-or-unicast configuration, and may determine a feedback codebook based on the multicast-only or multicast-or-unicast configuration of the one or more feedback processes. The UE may monitor for retransmissions of one or more multicast data communications based on the feedback process configuration.
    Type: Application
    Filed: November 29, 2023
    Publication date: April 4, 2024
    Inventors: Le LIU, Wanshi CHEN, Alberto RICO ALVARINO, Kazuki TAKEDA, Ayan SENGUPTA
  • Publication number: 20240106587
    Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support dynamic uplink control channel grouping. For example, a user equipment (UE) may receive control signaling indicating multiple uplink control channel groups for the UE, where each uplink control channel group of the multiple uplink control channel groups is associated with a different set of uplink control channel resources. Additionally, the UE may select an uplink control channel group for a component carrier (CC) associated with the UE, where the uplink control channel group is selected in accordance with a detected trigger at the UE. Further, the UE may transmit uplink control information for the CC in accordance with the selected uplink control channel group.
    Type: Application
    Filed: August 24, 2023
    Publication date: March 28, 2024
    Inventors: Kazuki TAKEDA, Heechoon LEE, Jae Ho RYU, Changhwan PARK
  • Patent number: 11943766
    Abstract: To appropriately control communication even when a reference signal is dynamically triggered, a user terminal according to one aspect of the present disclosure includes: a receiving section that receives a downlink shared channel and a Channel State Information (CSI) reference signal; and a control section that, when first downlink control information used to schedule the downlink shared channel and second downlink control information used to trigger the CSI reference signal are transmitted by different cells, and resources respectively indicated by the first downlink control information and the second downlink control information overlap, performs control not to perform at least one of reception of the downlink shared channel and measurement that uses the CSI reference signal.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: March 26, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Shohei Yoshioka, Kazuki Takeda, Satoshi Nagata
  • Patent number: 11943159
    Abstract: Certain aspects are directed to a user equipment (UE) configured to receive reference signals from a network node via multiple resource element groups (REGs) including at least one REG carrying a downlink transmission. In some examples, the UE may be configured to receive, from the network node, communication parameters for a downlink transmission, the communication parameters indicative of a first resource element group (REG) bundle and a second REG bundle. In some examples, the UE may receive the downlink transmission via the first REG bundle. In some examples, the UE may be configured to perform channel estimation of the downlink transmission based on reference signals transmitted via the first REG bundle and the second REG bundle.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: March 26, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Kazuki Takeda, Peter Gaal, Mostafa Khoshnevisan
  • Publication number: 20240098843
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, via a first cell, multicast radio bearer (MRB) configuration information indicating one or more MRB configurations for receiving multicast communications. The UE may receive, via a second cell, a multicast communication based at least in part on an MRB configuration of the one or more MRB configurations. Numerous other aspects are described.
    Type: Application
    Filed: March 4, 2022
    Publication date: March 21, 2024
    Inventors: Prasad Reddy KADIRI, Alberto RICO ALVARINO, Umesh PHUYAL, Le LIU, Xipeng ZHU, Miguel GRIOT, Haris ZISIMOPOULOS, Masato KITAZOE, Kazuki TAKEDA, Dario Serafino TONESI
  • Publication number: 20240098671
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may monitor a set of time-frequency resources for one or more cell detection signals (CDS) associated with a pseudo-random sequence, where the pseudo-random sequence and the set of time-frequency resources are indicated by an output of a pseudo-random function (PRF) that is based on a timing parameter, a cell identifier (ID), and a shared key. Accordingly, the UE may communicate with a network entity via a cell associated with the cell ID based on receiving the one or more CDS. The UE may also exchange one or more messages with the network entity, and may perform a time calibration procedure based on the one or more messages and a delay threshold of the UE. The one or more messages may indicate an ID of the UE, a cryptographic number, a time interval, or a combination thereof.
    Type: Application
    Filed: September 20, 2022
    Publication date: March 21, 2024
    Inventors: Alberto Rico Alvarino, Kazuki Takeda, Peter Gaal, Juan Montojo, Le Liu, Javier Rodriguez Fernandez, Xiao Feng Wang, Umesh Phuyal, Edward George Tiedemann, JR.
  • Publication number: 20240098677
    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) transmits, to a network entity, a Long-Term Evolution (LTE) positioning protocol (LPP) capabilities message, the LPP capabilities message including one or more capability parameters indicating capabilities of the UE to engage in a positioning session with at least one network node, the positioning session comprising an impulse radio ultra-wideband (IR-UWB) ranging procedure between the UE and the at least one network node, receives, from the network entity, an LPP assistance data message, the LPP assistance data message including one or more assistance parameters configuring the UE to perform at least the IR-UWB ranging procedure, and performs at least the IR-UWB ranging procedure based at least on the one or more assistance parameters.
    Type: Application
    Filed: January 24, 2022
    Publication date: March 21, 2024
    Inventors: Kazuki TAKEDA, Alberto RICO ALVARINO, Chiranjib SAHA, Ayan SENGUPTA, Alexandros MANOLAKOS
  • Patent number: 11937236
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an acknowledgment feedback configuration for providing feedback for semi-persistent scheduling (SPS) downlink shared channels (e.g., SPS group-common physical downlink shared channels (PDSCHs), SPS unicast PDSCHs, etc.). For example, the acknowledgment feedback configuration may include separate resources for transmitting acknowledgment feedback for unicast downlink shared channels and for transmitting acknowledgment feedback for group-common downlink shared channels or may include common resources for transmitting acknowledgment feedback for both unicast downlink shared channels and group-common downlink shared channels. In some examples, the UE may multiplex acknowledgment feedback for a set of group-common downlink shared channels with additional acknowledgment feedback for other downlink channels.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: March 19, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Le Liu, Kazuki Takeda, Alberto Rico Alvarino
  • Patent number: 11937270
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive signaling indicating a group of transmission configuration indicator states including a first subset associated with a first bandwidth part and a second subset associated with a common frequency resource. The UE may determine, based on the group of transmission configuration indicator states, a transmission configuration indicator state list arrangement indicating a first state list associated with the first bandwidth part and a second state list associated with the common frequency resource. The UE may select, based on the transmission configuration indicator state list arrangement, a transmission configuration indicator state sharing scheme or a transmission configuration indicator state separation scheme. The sharing scheme may include at least one transmission configuration indicator state that may be common between a unicast transmission configuration and a multicast transmission configuration.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: March 19, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Le Liu, Kazuki Takeda, Alberto Rico Alvarino, Mostafa Khoshnevisan
  • Publication number: 20240089760
    Abstract: Wireless communications systems, apparatuses, and methods are provided. A method of wireless communication performed by a user equipment (UE) includes receiving, from a network unit, a reference signal in a first frequency band, measuring the reference signal, and transmitting a communication in the first frequency band based on the measurement, wherein the UE is configured with a supplementary uplink (SUL) carrier on the first frequency band.
    Type: Application
    Filed: September 13, 2022
    Publication date: March 14, 2024
    Inventors: Jae Ho RYU, Sanghoon KIM, Changhwan PARK, Kazuki TAKEDA
  • Publication number: 20240089997
    Abstract: Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may support both unicast and multicast downlink signaling, such as on a single component carrier (CC). A UE may receive a unicast message over a first CC during a transmission time interval (TTI) using a first set of processing resources. The UE may simultaneously receive a multicast message over the first CC during the same TTI using a second set of processing resources. The first and second sets of processing resources may be associated with first and second hybrid automatic repeat request (HARM) soft buffers, first and second CCs, or first and second transmit/receive points (TRPs).
    Type: Application
    Filed: September 15, 2023
    Publication date: March 14, 2024
    Inventors: Kazuki TAKEDA, Alberto RICO ALVARINO, Le LIU, Peter GAAL, Wanshi CHEN, Ayan SENGUPTA, Prasad Reddy KADIRI, Tao LUO, Mostafa KHOSHNEVISAN, Juan MONTOJO, Umesh PHUYAL, Wooseok NAM
  • 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: 11930501
    Abstract: The present invention is designed to realize appropriate communication in next generation communication systems. a control section that controls communication by using a radio frame that includes a plurality of transmission time intervals (TTIs), in which the downlink and the uplink can be switched, and a given TTI, which is for DL transmission and which is configured in a given cycle, and a receiving section that receives a synchronization signal and a broadcast signal in the given TTI are provided.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: March 12, 2024
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Kazuki Takeda, Yoshihisa Kishiyama, Satoshi Nagata
  • 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