Patents by Inventor Yoshiaki Ohta

Yoshiaki Ohta 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: 11950132
    Abstract: A wireless communication system includes a first wireless communication device, and a second wireless communication device. The first wireless communication device includes: a communicator that delivers, to the second wireless communication device, data addressed to a third wireless communication device and receives, from the second wireless communication device, information on communication quality according to failed data of which delivery fails among the data delivered from the second wireless communication device to the third wireless communication device; and a controller that controls delivery of the data in accordance with the information on the communication quality.
    Type: Grant
    Filed: May 15, 2023
    Date of Patent: April 2, 2024
    Assignee: FUJITSU LIMITED
    Inventor: Yoshiaki Ohta
  • Publication number: 20240080897
    Abstract: A base station device includes a transmitter configured to perform communication when a terminal station device associated with the base station device is in a predetermined state, and a controller configured to configure, regarding setting that is related to a region in which a control signal for the communication performed by the terminal station device is decoded and that is related to a duration in which the region becomes available, a duration that corresponds to first communication and a duration that corresponds to second communication out of the communication, and control the terminal station device so as to cause the terminal station device to perform the communication by intermittently using each of the durations.
    Type: Application
    Filed: April 4, 2023
    Publication date: March 7, 2024
    Applicant: FUJITSU LIMITED
    Inventor: Yoshiaki OHTA
  • Publication number: 20240073828
    Abstract: A base station device that communicates with a first terminal device that transmits first data includes: a controller configured to determine whether a calculation method for a single term among a plurality of terms included in an equation for determining a transmission power of the first terminal device is either a first method or a second method, the first method using a relative value based on a previous value of the single term, the second method using an absolute value that is irrelevant to the previous value of the single term; and a transmitter configured to transmit, to the first terminal device, notification information for notifying the calculation method determined by the controller.
    Type: Application
    Filed: October 26, 2023
    Publication date: February 29, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, YOSHIHIRO KAWASAKI, Takayoshi Ode
  • Publication number: 20240063955
    Abstract: A transmitting device includes: a buffer configured to store the transmission data; a first layer processor configured to execute processing for a first layer on the transmission data; a second layer processor configured to execute processing for a second layer on the transmission data, the second layer being lower layer of the first layer; and a transmitter configured to transmit the transmission data processed by the first layer processor and the second layer processor; and a receiver configured to receive first information and second information, the first information being information for setting a first time for discarding the transmission data used by the first layer, the second information being information associated with the second layer and used to configure a second time for discarding the transmission data, wherein the first layer processor is configured to discard the transmission data stored in the buffer when the second discard time expires.
    Type: Application
    Filed: October 27, 2023
    Publication date: February 22, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Takayoshi ODE, YOSHIHIRO KAWASAKI, Nobuhisa AOKI
  • Patent number: 11882492
    Abstract: A communication device that performs wireless communication with a terminal device, the communication device includes a receiver, a processor, and a transmitter. The receiver configured to receive a measurement request from a wireless communication control device which controls communication between the communication device and the terminal device. The processor configured to measure uplink wireless channel quality with the terminal device. The transmitter configured to transmit a result of the measurement to the wireless communication control device. The receiver receives control information related to the measurement of the uplink wireless channel quality from the wireless communication control device or another communication device.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: January 23, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Takayoshi Ode, Tetsuya Hasegawa, Yoshihiro Kawasaki, Yoshiaki Ohta
  • Patent number: 11871475
    Abstract: A base station includes a memory and a processor coupled to the memory and configured to transmit, when a state transition of a mobile station is performed, a first control signal to the mobile station, and perform control to simultaneously transmit the first control signal and a second control signal different from the first control signal to the mobile station when a first state transition, which causes a state of the mobile station to transfer from a first state to a second state, is performed, and then a second state transition, which causes the state of the mobile station to transfer from the second state to a third state, is performed.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: January 9, 2024
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Yoshihiro Kawasaki, Takayoshi Ode, Jianming Wu
  • Patent number: 11849490
    Abstract: A communication device that performs a random access procedure, the communication device includes a transmitter and a controller. The transmitter configured to transmit a first signal in the random access procedure and a second signal which is not a signal of the random access procedure. The controller configured to perform control so that first information included in a first subheader corresponding to the first signal is included in a second subheader corresponding to the second signal and is transmitted.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: December 19, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Nobuhisa Aoki, Yoshihiro Kawasaki
  • Publication number: 20230403624
    Abstract: A wireless communication device includes a controller configured to configure an entity that processes data to be transmitted by a radio bearer, configure a plurality of communication channels with different communication configurations for requirements of the data, select one communication channel from the communication channels in accordance with a state of the data, and control data communication with a counterpart wireless communication device.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 14, 2023
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki OHTA, YOSHIHIRO KAWASAKI, Tetsuya YANO
  • Publication number: 20230397134
    Abstract: A base station that can transmit a synchronization signal at a predetermined transmission interval in a plurality of cycles includes a processor configured to continuously transmit the synchronization signal in a plurality of radio signals; and control radio measurement of a mobile station connected to the base station such that the mobile station detects the synchronization signal under a condition in accordance with second information that has been scaled by using first information.
    Type: Application
    Filed: August 22, 2023
    Publication date: December 7, 2023
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Masatsugu SHIMIZU, YOSHIHIRO KAWASAKI, Takayoshi ODE
  • Patent number: 11838134
    Abstract: A transmitting device includes a first layer processor configured to include a buffer to store therein transmission data, the first layer processor configured to execute processing for a first layer on the transmission data, a second layer processor configured to execute processing for a second layer that differs from the first layer on the transmission data, and a transmitter configured to transmit the transmission data processed by the first layer processor and the second layer processor. The first layer processor discards the transmission data stored in the buffer in accordance with a parameter used for transmission control in the processing for the second layer.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: December 5, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Takayoshi Ode, Yoshihiro Kawasaki, Nobuhisa Aoki
  • Publication number: 20230388858
    Abstract: A wireless communication device includes a controller configured to configure a plurality of entities for requirements of data to be transmitted by a radio bearer, configure communication channels with different communication configurations for the respective entities, select one entity and one communication channel in accordance with a state of the data, and control data communication with a counterpart wireless communication device.
    Type: Application
    Filed: August 15, 2023
    Publication date: November 30, 2023
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki OHTA, YOSHIHIRO KAWASAKI, Tetsuya YANO
  • Patent number: 11832194
    Abstract: A base station device includes: a controller configured to determine whether a calculation method for a single term among a plurality of terms included in an equation for determining a transmission power is either a first method or a second method; and a transmitter configured to transmit notification information for notifying the calculation method determined by the controller. The controller determines either the first method or the second method for first data, and determines either the first method or the second method for second data different from the first data.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: November 28, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Yoshihiro Kawasaki, Takayoshi Ode
  • Patent number: 11778571
    Abstract: A base station that can transmit a synchronization signal at a predetermined transmission interval in a plurality of cycles includes a processor configured to continuously transmit the synchronization signal in a plurality of radio signals; and control radio measurement of a mobile station connected to the base station such that the mobile station detects the synchronization signal under a condition in accordance with second information that has been scaled by using first information.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: October 3, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Masatsugu Shimizu, Yoshihiro Kawasaki, Takayoshi Ode
  • Publication number: 20230300871
    Abstract: A wireless communication device that transmits data to another wireless communication device that performs wireless connection using a packet including a transmission number, the wireless communication device includes, a controller configured to classify the data as first data when a transmission condition indicating a condition related to transmission of the data is a first transmission condition and classifies the data as second data when the transmission condition of the data is a second transmission condition different from the first transmission condition, and a transmitter configured to transmit the data in a first transmission mode in a layer related to the wireless connection when the data is the first data and transmits the data in a second transmission mode in a layer related to the wireless connection when the second data is second data.
    Type: Application
    Filed: May 26, 2023
    Publication date: September 21, 2023
    Applicant: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Takayoshi Ode, Shinichiro Aikawa, Yoshihiro Kawasaki
  • Patent number: 11765700
    Abstract: A wireless terminal including: a memory, and a processor coupled to the memory and configured to: communicate with a wireless base station using a wireless signal that is divided into sequential time segments, receive first information from the wireless base station, the first information including a length of a period for periodic wireless communication that is performed using the wireless signal, the length of the period being a specified number of time segments in the sequential time segments, and perform the periodic wireless communication with the wireless base station based on the first information, wherein the first information includes second information indicating at least one time segment within the period for the periodic wireless communication, the indicated at least one time segment in which a radio resource for the periodic wireless communication is allocated for the wireless terminal.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: September 19, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Yoshihiro Kawasaki
  • Patent number: 11758414
    Abstract: A radio terminal that performs radio communication with a base station, including: a communicator configured to perform radio measurement and monitoring of a paging signal; and a controller configured to control the communicator to receive information related to first duration by Non-Access Stratum (NAS) message from the base station, and not to perform the radio measurement and the monitoring during the first duration but to perform the radio measurement and the monitoring during second duration different from the first duration, wherein the controller is further configured to control the radio measurement and the monitoring by ending the first duration for transmitting uplink data of the radio terminal.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: September 12, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Yoshiharu Tajima, Akira Ito
  • Patent number: 11758431
    Abstract: A wireless terminal for a wireless communication, the wireless terminal includes: a memory that includes a buffer configured to store uplink data, wherein the uplink data is configured to be transmitted; and a controller configured to transmit a buffer status report, the buffer status report including a first index, wherein the first index is one of a plurality of buffer status indices and corresponds to a buffer size indicating a size of the uplink data stored in the buffer, wherein the memory is configured to store a buffer status table in which a range from a minimum value of the buffer to a maximum value of the buffer is divided into a plurality of subranges, the plurality of subranges being associated with a part of the plurality of buffer status indices, and a rest of the plurality of buffer status indices are associated with one or more reserved fields.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: September 12, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Yoshihiro Kawasaki, Takayoshi Ode, Nobuhisa Aoki
  • Publication number: 20230284088
    Abstract: A wireless communication system includes a first wireless communication device, and a second wireless communication device. The first wireless communication device includes: a communicator that delivers, to the second wireless communication device, data addressed to a third wireless communication device and receives, from the second wireless communication device, information on communication quality according to failed data of which delivery fails among the data delivered from the second wireless communication device to the third wireless communication device; and a controller that controls delivery of the data in accordance with the information on the communication quality.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 7, 2023
    Applicant: FUJITSU LIMITED
    Inventor: Yoshiaki Ohta
  • Patent number: 11737128
    Abstract: A communication system includes: a first communication apparatus configured to control a first wireless communication and a second wireless communication different from the first wireless communication; a second communication apparatus configured to communicate using the second communication; and a third communication apparatus configured to perform data communication with the first communication apparatus via the first wireless communication or the second wireless communication, wherein the third communication apparatus transmits to the first communication apparatus a control message that includes an available address of the third wireless communications apparatus used in the second wireless communication, the first communication apparatus notifies the second communication apparatus of the available address of the third communication apparatus, and the second communication apparatus communicate with the third communication apparatus using the address.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 22, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiaki Ohta, Shinichiro Aikawa, Takayoshi Ode, Junichi Suga, Ryuichi Takechi
  • Patent number: 11736976
    Abstract: A wireless communication system includes a first wireless communication device, and a second wireless communication device. The first wireless communication device includes: a communicator that delivers, to the second wireless communication device, data addressed to a third wireless communication device and receives, from the second wireless communication device, information on communication quality according to failed data of which delivery fails among the data delivered from the second wireless communication device to the third wireless communication device; and a controller that controls delivery of the data in accordance with the information on the communication quality.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: August 22, 2023
    Assignee: FUJITSU LIMITED
    Inventor: Yoshiaki Ohta