Patents by Inventor Yusuke Asai

Yusuke Asai 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: 20240064533
    Abstract: A wireless communication management apparatus (100) includes: a reception unit (112) that receives first wireless environment information from a terminal (300) configured to wirelessly communicate with a base station (200); a generation unit (113) that generates first control information of the terminal on the basis of first wireless environment information; and a transmission unit (115) that transmits the first control information to update a setting of the terminal.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 22, 2024
    Inventors: Shoko SHINOHARA, Yasuhiko INOUE, Yusuke Asai, Yasushi TAKATORI
  • Publication number: 20240064835
    Abstract: A transmitting station (TX) according to an embodiment includes first and second wireless signal processing units (STA1 and STA2) and a link management unit (LM). The first and second wireless signal processing units transmit wireless signals using first and second channels, respectively. The link management unit establishes multi-link with a receiving station. The link management unit manage communication in which the multi-link are used and store first information (TBM) indicating a sequence number of transmission target data. When second information (RBM) indicating the sequence number of the data received by the receiving station is received from the receiving station via the first or second wireless signal processing unit, the link management unit sets a bit corresponding to the sequence number indicated by the second information in the first information as a transmitted bit.
    Type: Application
    Filed: March 24, 2021
    Publication date: February 22, 2024
    Inventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20240056884
    Abstract: A transmitting station (TX) of an embodiment includes first and second radio signal processing units (STA1 and STA2) and a link management unit (LM). The first and second radio signal processing units are configured to be able to transmit a radio signal using first and second channels, respectively, and store information indicating a sequence number of data to be transmitted. The link management unit establishes multi-link with the receiving station by using the first radio signal processing unit and the second radio signal processing unit, and manages communication using the multi-link. The link management unit distributes a plurality of data units to the first and second radio signal processing units. The first radio signal processing unit transmits a first data unit group input from the link management unit among the plurality of data units to the receiving station, and stores first information (TBM) indicating the sequence number of the data unit included in the first data unit group.
    Type: Application
    Filed: December 28, 2020
    Publication date: February 15, 2024
    Inventors: Yasuhiko INOUE, Kengo Nagata, Yusuke Asai, Yasushi TAKATORI, Akira KISHIDA
  • Publication number: 20240049058
    Abstract: Provided is a wireless communication management apparatus that performs optimal control in units of base stations. A wireless communication management apparatus (100) includes an acquisition unit (1131), a determination unit (1132, 1133), and a notification unit (115). The acquisition unit (1131) acquires wireless environment information related to a terminal (300) connected to a base station (200). The determination unit (1132, 1133) determines a control value that satisfies a throughput for transmitting data from the terminal (300) to the base station (200) based on the acquired wireless environment information. The notification unit (115) notifies the terminal (300) of the determined control value.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 8, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko SHINOHARA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
  • Patent number: 11895641
    Abstract: A control device of the present invention is for provision in a gateway device that includes multiple communication units that perform wireless communication with terminal devices using different communication methods. Based on communication unit individual information that is acquired from the communication units and includes information indicating at least characteristics of the communication methods of the communication units, operations of the communication units are scheduled so as to prevent the overlapping of periods in which the communication units perform signal transmission/reception with the terminal devices.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: February 6, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kento Yoshizawa, Ryo Miyatake, Yusuke Asai, Daisei Uchida
  • Publication number: 20240040436
    Abstract: A data processing apparatus according to an embodiment includes a signal processing unit and a control unit. The signal processing unit is configured to receive data wirelessly transmitted from the terminal apparatus. The control unit executes a first operation under a constraint condition related to wireless communication of the terminal apparatus. The first operation includes: determining a transmission control parameter used for wireless communication of the terminal apparatus; and repeatedly determining a transmission control parameter again using the determined transmission control parameter when the determined transmission control parameter is different from the transmission control parameter before the determination. The control unit is configured to apply the transmission control parameter obtained through the first operation to the terminal apparatus.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 1, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko SHINOHARA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20240015058
    Abstract: Interference in preamble signals and pilot signals in cooperative transmission using interference suppressing technology is avoided. A wireless apparatus for transmitting a wireless signal on which directivity control has been performed to stations in a wireless system including at least one wireless apparatus is provided with a known signal generating unit which generates a known signal to be added to the wireless signal, a weighting processing unit which performs weighting on the known signal generated by the known signal generating unit, and a wireless processing unit which transmits the known signal on which the weighting has been performed by the weighting processing unit.
    Type: Application
    Filed: September 25, 2023
    Publication date: January 11, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomoki MURAKAMI, Yusuke ASAI, Riichi KUDO, Koichi ISHIHARA, Masato MIZOGUCHI, Takeo ICHIKAWA
  • Publication number: 20230413347
    Abstract: A transmitting station includes a first wireless signal processing unit, a second wireless signal processing unit, and a link management unit. The first and second wireless signal processing units are configured to transmit wireless signals using different channels. The link management unit manages link states of the first and second wireless signal processing units. The link management unit is configured to: generate, when first data input is of a specific type, second data that is a duplicate of the first data; attach, first identification information indicating that the first data is original data, to the first data and attach, second identification information indicating that the second data is replicated data, to the second data; and output the first data with the first identification information attached to the first wireless signal processing unit and output the second data with the second identification information attached to the second wireless signal processing unit.
    Type: Application
    Filed: October 13, 2020
    Publication date: December 21, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20230379986
    Abstract: A wireless apparatus according to an embodiment of the present invention includes: first and second processing units configured to transmit and receive wireless signals using different channels; and a link management unit configured to manage a first link between the first processing unit and a terminal and a second link between the second processing unit and the terminal, in which the link management unit receives a request signal requesting data exchange relating to a first traffic identifier from the terminal, associates the first traffic identifier with the second link based on the request signal, and when a second traffic identifier different from the first traffic identifier is associated with the second link, changes the association of the second traffic identifier from the second link to the first link based on the request signal.
    Type: Application
    Filed: October 13, 2020
    Publication date: November 23, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20230371099
    Abstract: A base station according to an embodiment includes first and second wireless signal processing units, and a link management unit. The link management unit establishes a multi-link with a terminal apparatus by using the first and second wireless signal processing units, and sets an anchor link to be used in transmission and reception of control information regarding an operation of the multi-link. The link management unit transmits a first wireless frame requesting change of the anchor link by using the first wireless signal processing unit set to the anchor link, and changes the anchor link from the first wireless signal processing unit to the second wireless signal processing unit if either the first wireless signal processing unit or the second wireless signal processing unit receives a positive response from the terminal apparatus after the first wireless frame is transmitted.
    Type: Application
    Filed: October 13, 2020
    Publication date: November 16, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasuhiko INOUE, Kengo NAGATA, Akira KISHIDA, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20230354186
    Abstract: According to an embodiment, a base station includes first and second wireless signal processing units and a link management unit. The first and second wireless signal processing units transmit and receive a wireless signal using first and second channels, respectively. The link management unit sets a multi-link to a first or second state. In the first state, a first link in which the first wireless signal processing unit is used and a second link in which the second wireless signal processing unit is used are each in an active mode in which communication is possible. In the second state, the first link is in the active mode or an intermittent operation mode in which an operation is intermittent, and the second link is an operation pause mode in which power consumption is less than in the intermittent operation mode.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 2, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
  • Patent number: 11804997
    Abstract: Interference in preamble signals and pilot signals in cooperative transmission using interference suppressing technology is avoided. A wireless apparatus for transmitting a wireless signal on which directivity control has been performed to stations in a wireless system including at least one wireless apparatus is provided with a known signal generating unit which generates a known signal to be added to the wireless signal, a weighting processing unit which performs weighting on the known signal generated by the known signal generating unit, and a wireless processing unit which transmits the known signal on which the weighting has been performed by the weighting processing unit.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: October 31, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomoki Murakami, Yusuke Asai, Riichi Kudo, Koichi Ishihara, Masato Mizoguchi, Takeo Ichikawa
  • Publication number: 20230328816
    Abstract: A base station (10) according to one aspect of the present invention includes a plurality of radio signal processing units (130, 140, and 150), a carrier sense control unit (160), and a management unit (120). The plurality of radio signal processing units (130, 140, and 150) transmit and receive radio signals of different channels. The carrier sense control unit (160) executes collective carrier sensing on a channel of each of the plurality of radio signal processing units (130, 140, and 150) using an access parameter common to the plurality of radio signal processing units (130, 140, and 150) and determines whether the channel is in an idle state or busy state. The management unit (120) performs processing for transmitting radio signals by a multi-link wirelessly connected through a plurality of types of channels when there are a plurality of links formed between a radio signal processing unit having the channel determined to be in an idle state and a terminal (20).
    Type: Application
    Filed: July 27, 2020
    Publication date: October 12, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasuhiko INOUE, Kengo NAGATA, Akira KISHIDA, Yasushi TAKATORI, Yusuke ASAI
  • Publication number: 20230326311
    Abstract: A wireless system according to an embodiment includes at least one terminal and a base station. The terminal includes a wireless communication module and a first control unit. The wireless communication module transmits and receives data to and from the base station. When motion is detected from an acquired video, the first control unit transmits a frame image, which is a still image extracted from the video, to the base station by using the wireless communication module, and transmits the video to the base station by using the wireless communication module when transmission of the video is requested by the base station as a result of transmitting the frame image. The base station includes a second control unit. The second control unit determines whether or not to request transmission of a video on the basis of a frame image, and requests a terminal to transmit a video when determining to request transmission of a video.
    Type: Application
    Filed: August 25, 2020
    Publication date: October 12, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Mitsuki NAKAMURA, Wataru YAMADA, Yasuhiko INOUE, Shoko SHINOHARA, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20230328776
    Abstract: A wireless communication method in a wireless communication system includes carrier sense processing for determining whether a carrier sense band is in a busy state or an idle state on the basis of a reception state of a reception signal in the carrier sense band before transmitting a transmission signal using a transmission channel. The carrier sense band is set so as to include not only a transmission channel band which is a frequency band of a transmission channel but also an adjacent carrier sense band adjacent to the transmission channel band. When it is determined that the carrier sense band is in an idle state, transmission processing for transmitting a transmission signal by using a transmission channel is performed.
    Type: Application
    Filed: September 2, 2020
    Publication date: October 12, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shoko SHINOHARA, Yusuke ASAI, Yasushi TAKATORI, Yasuhiko INOUE, Mitsuki NAKAMURA
  • Publication number: 20230327839
    Abstract: A base station according to an embodiment includes an antenna, a wireless device, a wireless information acquisition unit, a control unit, a directivity setting unit, a directivity control unit, and a communication instruction unit. The antenna has an omni-directional array antenna. The wireless device communicates with one or more terminals in a cover area by using a wireless signal via the antenna. The wireless information acquisition unit acquires wireless information including the position of the terminal and a communication time block. On the basis of the wireless information, the control unit determines a communication execution time block, which is a time block for executing communication with the terminal, and an antenna gain of the antenna for communicating with the terminal. On the basis of the antenna gain, the directivity setting unit sets a directivity pattern of the omni-directional array antenna so as to have directivity in the direction of the terminal.
    Type: Application
    Filed: August 26, 2020
    Publication date: October 12, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Mitsuki NAKAMURA, Wataru YAMADA, Yasuhiko INOUE, Shoko SHINOHARA, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20230319876
    Abstract: A base station according to an aspect of the present invention operates as a first base station (121) in a base station system (12) including the first base station (121) and a plurality of second base stations (122), the base station including a carrier sensing control unit (66) that determines whether a channel of each of the plurality of second base stations (122) is in an idle state or a busy state by using an access parameter common to the plurality of second base stations (122), and a processing unit (63) that transmits a first signal to be transmitted to a first wireless terminal (14) and a second signal to be transmitted to a second wireless terminal (14) using multi-user MIMO which uses the two or more second base stations (122) whose channels have been determined to be in the idle state in a coordinated manner.
    Type: Application
    Filed: July 27, 2020
    Publication date: October 5, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasuhiko INOUE, Kengo NAGATA, Akira KISHIDA, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20230299814
    Abstract: A base station (10-1) includes a radio signal processing unit (102) capable of using a first channel (CH4), a second channel (CH3), and a third channel (CH2). The radio signal processing unit is configured to perform signaling with a second other base station (10-3) using the second channel while performing signaling with a first other base station (10-4) using the first channel when the radio signal processing unit acquires transmission rights of the first channel, the second channel, and the third channel, and execute cooperative processing with at least one of the first other base station and the second other base station on the basis of a result of the signaling.
    Type: Application
    Filed: July 27, 2020
    Publication date: September 21, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
  • Publication number: 20230292385
    Abstract: A base station of an embodiment includes first and second wireless signal processing units and a link management unit. The link management unit establishes a multi-link with a terminal apparatus by using the first and second wireless signal processing units, and sets a primary link used as a main and a secondary link used as an auxiliary during the multi-link. The link management unit transmits a first wireless frame requesting a change of the primary link to the terminal apparatus by using the first wireless signal processing unit set to the primary link, and the link management unit changes the primary link from the first wireless signal processing unit to the second wireless signal processing unit if either the first or second wireless signal processor receives the affirmative response from the terminal apparatus after the first wireless frame is transmitted.
    Type: Application
    Filed: July 27, 2020
    Publication date: September 14, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
  • Patent number: 11757525
    Abstract: A communication system including a mobile station that communicates with a wireless station and moves toward a predetermined destination, and a relay station that relays communication between the mobile station and the wireless station, includes: the mobile station that pauses movement when sensing an obstacle present on a first moving route toward the destination in a case of moving along the first moving route, and moves along a second moving route headed to the destination while avoiding the obstacle when establishing communication between the mobile station and the wireless station via the relay station in a case where the movement is paused; and the relay station that moves so as to keep a position where communication between the mobile station and the wireless station can be relayed according to movement of the mobile station when the mobile station moves along the second moving route.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: September 12, 2023
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kohei Suzaki, Yusuke Asai, Hiroyuki Shiba