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).
-
Patent number: 11979839Abstract: An interference wave arithmetic operation method performed by a wireless communication system including a plurality of antennas, the method including: determining an interferer antenna on the basis of information regarding directivity, a position, and an orientation of each of the plurality of antennas; and calculating interference wave reception intensity of a victim antenna using an interference wave from the determined interferer antenna.Type: GrantFiled: April 6, 2020Date of Patent: May 7, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Ryo Miyatake, Yusuke Asai, Daisei Uchida, Kazunori Akabane
-
Publication number: 20240147296Abstract: Provided is an interference control system for wireless communication suitable for limiting the total amount of interference to which an interfered-with wireless communicator to be protected is subjected by interfering wireless communicators. A repeater disposed between the interfering wireless communicator and a controller includes a processor and a memory storing a program executed by the processor. The processor acquires registration information including a position and a transmission power for each interfering wireless communicator, and estimates, for each interfering wireless communicator, a terminal range in which there is a likelihood that a terminal wireless communicator communicating with the interfering wireless communicator is present based on the position and the transmission power. The processor transmits a registration application including the terminal range to the control device.Type: ApplicationFiled: June 8, 2021Publication date: May 2, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Junichi IWATANI, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
-
Publication number: 20240147441Abstract: Provided is an interference control system for wireless communication suitable for limiting the total amount of interference given to an interfered device to be protected by a large number of interfering devices. The system provides a control device disposed in a public network with a resource application based on a message issued regarding use of a radio resource by an interfering device disposed in a carrier network. A response based on a message issued by the control device with respect to the resource application is provided to the interfering device that has issued the resource application. A resource table including information in which availability of frequency in carrier network is estimated is updated on the basis of the resource application and the response. The information in which the availability is estimated and included in the resource table is reflected in the resource application.Type: ApplicationFiled: March 3, 2021Publication date: May 2, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Junichi IWATANI, Yasuhiko INOUE, Yusuke ASAI
-
Publication number: 20240129747Abstract: Provided is an interference control system for wireless communication suitable for limiting the total amount of interference given to an interfered device to be protected by a large number of interfering devices. An interference control system includes a subscriber database that stores information regarding a position of each interfering device. A registration application (5) including an ID of an interfering device disposed in a carrier network is received from the interfering device. The registration application is received and position information that matches information stored in the subscriber database regarding the ID is set (2), (3), and (6). The position information is transmitted to the control device for registration (6).Type: ApplicationFiled: March 3, 2021Publication date: April 18, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Junichi IWATANI, Yasuhiko INOUE, Yusuke ASAI
-
Publication number: 20240121023Abstract: A wireless communication management apparatus (100) includes a correction unit (1131), an evaluation unit (1132), and a determination unit (1133). The correction unit (1131) corrects, on the basis of a characteristic of each terminal, an error rate in wireless communication between a base station and the terminal based on wireless environment information collected from one or more terminals configured to wirelessly communicate with the base station. The evaluation unit (1132) evaluates the corrected error rate. The determination unit (1133) determines a modulation/demodulation scheme for each terminal on the basis of the evaluation result of the evaluation unit.Type: ApplicationFiled: December 25, 2020Publication date: April 11, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shoko SHINOHARA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
-
Publication number: 20240101925Abstract: Object A grease composition having a low dust generation, long life, and low low-temperature torque under an ultra high-speed, high-temperature environment with a rotational speed exceeding 30000 rpm is provided, and by applying the grease composition to a rolling bearing, the rolling bearing having a low dust generation, long life and low low-temperature torque, and a motor including such a rolling bearing are also provided. Resolution Means Provided are: a grease composition containing a base oil and a thickener, the base oil including a fluorine oil, an ester oil, and a polyalphaolefin oil, and the thickener including a fluorine-based thickener, a urea-based thickener, and a barium complex soap thickener, each of these components being included in the grease composition at a predetermined proportion; a rolling bearing filled with the grease composition; and a motor including the rolling bearing.Type: ApplicationFiled: October 12, 2020Publication date: March 28, 2024Inventors: Yusuke ASAI, Shintaro TAKATA, Daiki YAMAMOTO
-
Publication number: 20240098819Abstract: 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 link management unit establishes multi-link with a receiving station by using the first and second radio signal processing units, 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 among the plurality of data units to the receiving station, and transmits first information indicating the sequence number of the data unit included in the first data unit group to the receiving station.Type: ApplicationFiled: December 28, 2020Publication date: March 21, 2024Inventors: Akira KISHIDA, Yasuhiko INOUE, Kengo NAGATA, Yusuke ASAI, Yasushi TAKATORI
-
Publication number: 20240098783Abstract: A wireless apparatus according to one aspect of the present invention includes a reception unit configured to receive, on a frequency channel, a frame including first identification information for identifying the priority level of the frame, and a carrier sensing control unit configured to determine a threshold based on the first identification information, and determine a usage state of the frequency channel based on a comparison between received power of the frame and the determined threshold.Type: ApplicationFiled: February 18, 2021Publication date: March 21, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Hanae OTANI, Akira KISHIDA, Kengo NAGATA, Yusuke ASAI, Yasuhiko INOUE, Yasushi TAKATORI
-
Publication number: 20240073822Abstract: A wireless communication management apparatus (100) includes a remaining capacity prediction unit (122) and a time setting unit (123). The remaining capacity prediction unit (122) predicts a remaining capacity (BLafter) of a battery (305) at a time point after a predetermined period has passed in a wireless communication device (300) on which the battery (305) is mounted. The time setting unit (123) sets a condition that the remaining capacity (BLafter) of the battery (305) predicted by the remaining capacity prediction unit (122) is greater than an allowable remaining capacity (BLminreq) and each of an operating time (Ton) and a transmittable time (Ttx) of the wireless communication device (300) falls within the reference range, and sets the operating time (Ton) and the transmittable time (Ttx) of the wireless communication device (300) in a state where the condition is satisfied.Type: ApplicationFiled: December 25, 2020Publication date: February 29, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shoko SHINOHARA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
-
Publication number: 20240064533Abstract: 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: ApplicationFiled: December 25, 2020Publication date: February 22, 2024Inventors: Shoko SHINOHARA, Yasuhiko INOUE, Yusuke Asai, Yasushi TAKATORI
-
Publication number: 20240064835Abstract: 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: ApplicationFiled: March 24, 2021Publication date: February 22, 2024Inventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
-
Publication number: 20240056884Abstract: 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: ApplicationFiled: December 28, 2020Publication date: February 15, 2024Inventors: Yasuhiko INOUE, Kengo Nagata, Yusuke Asai, Yasushi TAKATORI, Akira KISHIDA
-
Publication number: 20240049058Abstract: 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: ApplicationFiled: December 25, 2020Publication date: February 8, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shoko SHINOHARA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
-
Patent number: 11895641Abstract: 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: GrantFiled: July 1, 2019Date of Patent: February 6, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Kento Yoshizawa, Ryo Miyatake, Yusuke Asai, Daisei Uchida
-
Publication number: 20240040436Abstract: 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: ApplicationFiled: December 25, 2020Publication date: February 1, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shoko SHINOHARA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
-
Publication number: 20240015058Abstract: 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: ApplicationFiled: September 25, 2023Publication date: January 11, 2024Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tomoki MURAKAMI, Yusuke ASAI, Riichi KUDO, Koichi ISHIHARA, Masato MIZOGUCHI, Takeo ICHIKAWA
-
Publication number: 20230413347Abstract: 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: ApplicationFiled: October 13, 2020Publication date: December 21, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
-
Publication number: 20230379986Abstract: 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: ApplicationFiled: October 13, 2020Publication date: November 23, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI
-
Publication number: 20230371099Abstract: 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: ApplicationFiled: October 13, 2020Publication date: November 16, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Yasuhiko INOUE, Kengo NAGATA, Akira KISHIDA, Yusuke ASAI, Yasushi TAKATORI
-
Publication number: 20230354186Abstract: 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: ApplicationFiled: July 27, 2020Publication date: November 2, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Akira KISHIDA, Kengo NAGATA, Yasuhiko INOUE, Yusuke ASAI, Yasushi TAKATORI