Patents by Inventor Satoshi Nagata

Satoshi Nagata 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: 10938505
    Abstract: A user terminal includes a receiver that receives a downlink shared channel and a processor that obtains a transport block size (TBS) used for the downlink shared channel based on: a TBS index value that is associated with a modulation and coding scheme (MCS) index value used for the downlink shared channel; and a number of resource blocks (RBs) that are allocated to the downlink shared channel. When the downlink shared channel is transmitted by a predetermined transmission scheme and the MCS index value is a predetermined value, the processor modifies the TBS index value associated with the predetermined value and obtains the TBS based on the modified TBS index value and the number of RBs.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: March 2, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuaki Takeda, Satoshi Nagata, Kohei Kiyoshima, Hideaki Takahashi, Sadayuki Abeta
  • Publication number: 20210058797
    Abstract: A terminal is disclosed including a processor that increments a beam failure instance counter in a higher layer, based on a beam failure instance indication received from a physical layer; a transmitter that, when the beam failure instance counter is greater than or equal to a predetermined threshold, transmits a random access preamble based on a transmission instruction from the higher layer; and a receiver that monitors, within a predetermined response window period, a physical downlink control channel (PDCCH) for a response to the random access preamble based on a predetermined search space setting. In another aspect, a radio communication method for a terminal is also disclosed.
    Type: Application
    Filed: January 17, 2019
    Publication date: February 25, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Shohei Yoshioka, Satoshi Nagata, Min Liu, Jing Wang, Chongning Na, Yuichi Kakishima
  • Publication number: 20210058932
    Abstract: To determine an appropriate spatial resource for an uplink control channel. A user terminal includes a receiving section that receives, by a higher layer, a plurality of pieces of spatial relation information related to spatial resources for an uplink control channel, and receives, through a medium access control-control element, indication information indicating at least one piece of spatial relation information associated with at least one uplink control channel resource among the plurality of pieces of spatial relation information, and a control section that determines a partial band to which the indication information is applied, and controls transmission of an uplink control channel in the partial band by using the at least one piece of spatial relation information and the at least one uplink control channel resource.
    Type: Application
    Filed: March 7, 2018
    Publication date: February 25, 2021
    Applicant: NTT Docomo, Inc.
    Inventors: Kazuki TAKEDA, Satoshi NAGATA, Tooru UCHINO, Lihui WANG, Chongning NA, Xiaolin HOU
  • Publication number: 20210058133
    Abstract: To appropriately configure frequency resources used for a beam failure recovery procedure, a user terminal includes: a transmitting section that transmits a beam failure recovery request when detecting a beam failure; a receiving section that receives a response to the beam failure recovery request; and a control section that controls determination of at least one of a frequency resource used to transmit the beam failure recovery request, and a frequency resource used to receive the response.
    Type: Application
    Filed: December 27, 2017
    Publication date: February 25, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Chongning Na, Xiaolin Hou
  • Publication number: 20210058129
    Abstract: To perform a beam failure recovery procedure by using an appropriate radio resource, a user terminal includes a transmitting section that transmits a beam failure recovery request, and a control section that controls transmission of the beam failure recovery request by using at least one of an uplink shared channel, an uplink control channel, a sounding reference signal, and a random access channel indicated by a downlink control channel.
    Type: Application
    Filed: December 27, 2017
    Publication date: February 25, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Chongning Na, Xiaolin Hou
  • Publication number: 20210058218
    Abstract: To properly perform communication also in the case of supporting activation of a plurality of BWPs, a user terminal according to one aspect of the present disclosure has a receiving section that receives downlink control information for indicating activation of a predetermined BWP among one or more partial frequency bands (BWP: Bandwidth Part) configured within a carrier, and a control section that controls activation of one or a plurality of BWPs based on at least one of the downlink control information, MAC control information and higher layer signaling.
    Type: Application
    Filed: February 15, 2018
    Publication date: February 25, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata, Jing Wang, Chongning Na
  • Publication number: 20210058903
    Abstract: To appropriately perform data transmission using a certain symbol, one aspect of a user terminal of the present disclosure includes: a transmitting section that transmits an uplink shared channel by using a certain number of symbols; and a control section that performs control such that transmission of the uplink shared channel using one symbol is performed when an allocation type allowing a change of a start position of the uplink shared channel is employed in a case that a plurality of allocation types for a time direction of the uplink shared channel are supported.
    Type: Application
    Filed: February 13, 2018
    Publication date: February 25, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Publication number: 20210058203
    Abstract: User equipment for communicating with a base station includes a processing unit, wherein when transmitting a physical uplink shared channel (PUSCH) to the base station prior to establishment of a radio resource control (RRC) connection between the base station and the user equipment, the processing unit controls frequency hopping applied to the PUSCH and a demodulation reference signal; a reception unit for receiving from the base station information indicating that frequency hopping is applied to the PUSCH; and a transmission unit for transmitting the PUSCH and the demodulation reference signal to which frequency hopping is applied; wherein the demodulation reference signal for demodulating a single PUSCH is formed of one front-loaded demodulation reference signal and one additional demodulation reference signal, and when the duration in symbols of the PUSCH does not support one additional demodulation reference signal, the demodulation reference signal is formed of a front-loaded demodulation reference sign
    Type: Application
    Filed: March 30, 2018
    Publication date: February 25, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideyuki Moroga, Satoshi Nagata, Yuichi Kakishima
  • Publication number: 20210058919
    Abstract: An aspect of a user terminal of the present invention includes a transmitting section that transmits a plurality of pieces of uplink control information (UCI) corresponding to a plurality of communications by using an uplink control channel or an uplink shared channel, and a control section that controls a transmission of at least a part of the plurality of pieces of UCI, based on a format of the uplink control channel or a maximum coding rate configured for the uplink shared channel when transmission timings of the plurality of pieces of UCI overlap each other.
    Type: Application
    Filed: December 27, 2017
    Publication date: February 25, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Patent number: 10931407
    Abstract: In scheduling transmission of UL data in a plurality of subframes using single DCI, asynchronous re-transmission control of this UL data is appropriately performed. A user terminal according to an aspect of the present invention includes a receiving section that receives downlink control information (DCI) and a control section that controls transmission of an uplink shared channel in each of a plurality of subframes based on the DCI. The control section determines an HARQ process number (HPN) to use in each of the plurality of subframes based on a HPN field included in the DCI.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: February 23, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata, Yu Jiang, Liu Liu, Huiling Jiang
  • Patent number: 10925969
    Abstract: Polypeptides and proteins that specifically bind to and immunologically recognize B-Cell Maturation Antigen (BCMA) are disclosed. Chimeric antigen receptors (CARs), anti-BCMA binding moieties, nucleic acids, recombinant expression vectors, host cells, populations of cells, pharmaceutical compositions, and conjugates relating to the polypeptides and proteins are also disclosed. Methods of detecting the presence of cancer and methods of treating or preventing cancer are also disclosed.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: February 23, 2021
    Assignees: The United States of America, as represented by the Secretary, Department of Health and Human Service, Sanford Research
    Inventors: Ira H. Pastan, Tapan Bera, Satoshi Nagata, Tomoko Ise, Yasuhiro Abe
  • Patent number: 10932230
    Abstract: A user apparatus for use in a mobile communication system that supports D2D communication, including: a signal transmission unit configured to transmit a plurality of D2D signals; and a resource selection unit configured to select, from a predetermined resource pool, a radio resource having a time resource and a frequency resource for transmitting the plurality of D2D signals, wherein the resource selection unit is configured to select the radio resource such that the plurality of D2D signals are not transmitted by a same time resource.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: February 23, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Shimpei Yasukawa, Hiroki Harada, Satoshi Nagata, Qun Zhao
  • Publication number: 20210051666
    Abstract: Transmission directions of a plurality of carriers are appropriately configured. A user terminal includes: a reception section that receives sequence information indicating a plurality of sequences of information indicating a slot format by higher layer signaling, and receives instruction information for instructing one of the plurality of sequences according to a monitoring periodicity on a downlink control channel of a given carrier; and a control section that determines slot formats of the given carrier and an uplink carrier based on the sequence information and the instruction information in at least one of a case where a length of the sequence instructed by the instruction information is different from numbers of slots of the given carrier and the uplink carrier in the monitoring periodicity, and a case where a subcarrier spacing configured to the given carrier is different from a subcarrier spacing configured to the uplink carrier.
    Type: Application
    Filed: February 13, 2018
    Publication date: February 18, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Shaozhen Guo, Lihui Wang, Xiaolin Hou
  • Patent number: 10925019
    Abstract: Even when different numerologies from those of legacy LTE systems are used, synchronization signals are appropriately transmitted and/or received. A user terminal includes: a reception section that receives a first synchronization signal and a second synchronization signal mapped on predetermined resources; and a control section that controls synchronization processing based on the first synchronization signal and the second synchronization signal, and spacings of the first synchronization signal and the second synchronization signal at which the first synchronization signal and the second synchronization signal are mapped on subcarriers are different.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: February 16, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Daiki Takeda, Hiroki Harada, Satoshi Nagata
  • Patent number: 10925089
    Abstract: This invention aims to achieve appropriate communication in a communication system which uses a cell defined to apply listening. This invention provides a user terminal which performs communication using cells including an LAA cell which applies listening before UL transmission, the terminal including a transmission unit which transmits uplink control information and uplink data, and a control unit which controls transmission of the uplink control information and the uplink data, wherein the control unit performs control to transmit the uplink control information using an uplink channel other than an uplink shared channel of the LAA cell.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: February 16, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Kazuki Takeda, Satoshi Nagata
  • Publication number: 20210044396
    Abstract: A terminal is disclosed including a processor that identifies a resource for a Channel State Information-Reference Signal (CSI-RS); and a transmitter that transmits a Sounding Reference Signal (SRS) by using a precoder based on the resource that was last transmitted. In other aspects, a radio communication method and a base station are also disclosed.
    Type: Application
    Filed: February 27, 2019
    Publication date: February 11, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuichi Kakishima, Ryosuke Osawa, Satoshi Nagata
  • Publication number: 20210045139
    Abstract: A user terminal according to an aspect of the present disclosure includes a receiving section that receives downlink control information (DCI) indicating transmission of an uplink shared channel, and a control section that determines that a size of a time domain resource allocation (RA) field included in the DCI is different depending on a format of the DCI to control the transmission of the uplink shared channel based on the field. According to one aspect of the present disclosure, the number of candidates of the PUSCH time domain RA can be appropriately controlled.
    Type: Application
    Filed: April 5, 2018
    Publication date: February 11, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Xiaolin Hou
  • Patent number: 10917210
    Abstract: A user terminal receives a downstream link data signal, a demodulation reference signal for demodulating the downstream link data signal, and a downstream link signal including a downstream link control signal; calculates a channel estimation value using the demodulation reference signal; demodulates the downstream link data signal using the channel estimation value; and demodulates the downstream link control signal using the channel estimation value calculated from the demodulation reference signal mapped to a symbol before a symbol to which the downstream link control signal is mapped in a sub-frame.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: February 9, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Keisuke Saito, Kazuaki Takeda, Kazuki Takeda, Satoshi Nagata
  • Publication number: 20210037406
    Abstract: A user terminal according to one aspect of the present disclosure includes a receiving section that receives information indicating start of report of semi-persistent channel state information (SP-CSI (Semi-Persistent Channel State Information) report), and a control section that determines timing of the SP-CSI report, based on whether or not there is relation between timing of a feedback report for reception of the information and the timing of the SP-CSI report. According to one aspect of the present disclosure, SP-CSI report and/or detection can be appropriately controlled even when SP-CSI report activation is indicated by using MAC CEs (Medium Access Control Control Elements).
    Type: Application
    Filed: February 14, 2018
    Publication date: February 4, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Satoshi Nagata, Huiling Li, Lihui Wang, Chongning Na, Xiaolin Hou
  • Publication number: 20210037519
    Abstract: In future radio communication systems, uplink control channels will be transmitted properly. A user terminal has a receiving section that receives frequency hopping information, which indicates whether frequency hopping for an uplink control channel in one slot is enabled or not, and receives information that indicates the number of slots for the uplink control channel, and a control section that, when the number of slots is greater than one, controls repetition transmission of the uplink control channel, over a plurality of slots, by applying at least one of a spreading factor of a time-domain orthogonal cover code, a configuration of a demodulation reference code, and a base sequence, to the uplink control channel, based on the frequency hopping information.
    Type: Application
    Filed: February 15, 2018
    Publication date: February 4, 2021
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Kazuki Takeda, Satoshi Nagata