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公开(公告)号：US11283513B2
公开(公告)日：2022-03-22
申请号：US16753128
申请日：2018-09-11
Inventor： Takeshi Yasunaga , Hideki Kanemoto , Ritsu Miura
Abstract: According to the present application, an aircraft terminal device for air-to-ground communication includes an in-flight communication controller configured to control communication with multiple user terminals, and, when a counterpart based station device on the ground needs to reserve a communication resource for ground-to-ground communication, the in-flight communication controller cuts off communication with at least one of the multiple user terminals.
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公开(公告)号：US10805806B2
公开(公告)日：2020-10-13
申请号：US16579194
申请日：2019-09-23
Inventor： Osamu Kato , Hideki Kanemoto , Hiroaki Asano
IPC: H04W16/14
Abstract: A shared frequency management system that manages sharing of frequencies of a shared frequency band mainly used by a first wireless system with a second wireless system, includes an input unit that receives first border information regarding a first border indicating a border of a first region in which a reception level based on transmission of a first wireless signal using the frequencies of the shared frequency band from the first wireless system becomes a defined value, a deriving unit that derives second border information regarding a second border indicating a border of a second region in which a reception level based on transmission of a second wireless signal using the frequencies of the shared frequency band from the second wireless system becomes the defined value, and a permission condition determination unit that determines a sharing permission condition regarding the frequencies of the shared frequency band for the second wireless system on the basis of the first border information and the second border information.
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3.发明授权公开(公告)号：US11057124B2
公开(公告)日：2021-07-06
申请号：US16551090
申请日：2019-08-26
Inventor： Osamu Kato , Hiroaki Asano , Hideki Kanemoto
IPC: H04B17/14 , H04B17/318 , H04B17/10
Abstract: A wireless receiver measures a reception parameter while scanning multiple pieces of reception directivity for an interval during which a signal is not transmitted from a wireless transmitter. The wireless transmitter transmits a signal while scanning multiple pieces of transmission directivity, and the wireless receives measures a reception parameter relating to reception of the signal and determines k pieces of transmission directivity that correspond to high-ranking k results, respectively, of the measurement that have a great reception parameter. The wireless transmitter forms any transmission directivity and transmits a signal, and the wireless receives measures a reception parameter while scanning M pieces of reception directivity and determines reception directivity that is to be used for data communication.
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公开(公告)号：US11191039B2
公开(公告)日：2021-11-30
申请号：US16582736
申请日：2019-09-25
Inventor： Osamu Kato , Hideki Kanemoto , Hiroaki Asano
Abstract: A wireless system can use a shared frequency mainly used by an existing first wireless system under predetermined sharing conditions, and includes a communication unit performing wireless communication with a terminal accommodated in a communication area, at least one sensor disposed around the communication area and measuring reception power of a signal sent from the inside of the communication area via the communication unit, a memory storing beam data indicating a correspondence relationship between a beam direction of the signal and a measurement result in the sensor, a determination unit determining allowable maximum transmission power of the signal in each beam direction on the basis of the sharing conditions and the beam data, and an allocation unit allocating a radio resource to the terminal on the basis of the allowable maximum transmission power in each beam direction and channel state information reported from the terminal.
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Patent Agency Ranking
公开(公告)号：US11076339B2
公开(公告)日：2021-07-27
申请号：US16581022
申请日：2019-09-24
Inventor： Osamu Kato , Hideki Kanemoto , Hiroaki Asano
Abstract: A wireless communication system includes a first base station connectable to a backbone network by a wireless backhaul, and a path generator generating a wireless multi-hop path including the first base station and one or more second base stations connected to the first base station by a wireless multi-hop. The first base station reports a measurement result of a line quality of the wireless backhaul and a measurement result of a line quality between the first base station and the second base station disposed around the first base station. The first base station is switched to a first mode connected to the backbone network by the wireless backhaul or to a second mode connected to the second base station by a wireless multi-hop, in response to the path signal.
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公开(公告)号：US11245466B2
公开(公告)日：2022-02-08
申请号：US16753109
申请日：2018-09-11
Inventor： Hideki Kanemoto , Takeshi Yasunaga , Ritsu Miura
Abstract: According to the present application, a base station device is configured to manage a vertically-oriented cell and a ground cell with respective IDs used to identify each cell, to determine whether or not a counterpart terminal device is an aircraft terminal device for air-to-ground communication based on a terminal ID included in a message received therefrom, and to control communication with the counterpart terminal device such that, if the counterpart terminal device is an aircraft terminal device, the base station selects the vertically-oriented cell as a connection destination of the counterpart terminal device and transmits a connection instruction message including a cell ID of the vertically-oriented cell to the counterpart terminal device, otherwise, the base station selects the ground cell as a connection destination of the counterpart terminal device and transmits a connection instruction message including a cell ID of the ground cell to the counterpart terminal device.
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公开(公告)号：US11089483B2
公开(公告)日：2021-08-10
申请号：US16582725
申请日：2019-09-25
Inventor： Osamu Kato , Hideki Kanemoto , Hiroaki Asano
Abstract: A shared frequency management apparatus includes a communicator receiving application information regarding use of a shared frequency band from each of base stations of plural different communication companies, a determiner determining whether or not allocation of different TDD patterns during use of adjacent carrier frequencies among plural carrier frequencies included in the shared frequency band is possible on the basis of the application information from each base station, a setter setting the TDD pattern for each of the carrier frequencies on the basis of the application information from each base station and a determination result of whether or not allocation of the different TDD patterns is possible, and a decision unit deciding an allocation content of the shared frequency band to each base station, satisfying the application information from each base station, on the basis of a setting result of the TDD pattern for each carrier frequency.
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公开(公告)号：US10939439B2
公开(公告)日：2021-03-02
申请号：US16553686
申请日：2019-08-28
Inventor： Osamu Kato , Hiroaki Asano , Hideki Kanemoto
IPC: H04W72/04
Abstract: A base station holds information on uplink radio resources which has been allocated to at least one already connected communication terminal for performing radio communication using a high frequency with the base station, receives a notification of participation in a radio communication system from a new communication terminal, and allocates unallocated uplink radio resources using high frequencies to the new communication terminal based on the information on the uplink radio resources when received the notification of participation. The new communication terminal transmits data to the base station by using the allocated uplink radio resources.
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公开(公告)号：US10912099B2
公开(公告)日：2021-02-02
申请号：US16545850
申请日：2019-08-20
Inventor： Osamu Kato , Hiroaki Asano , Hideki Kanemoto
Abstract: Provided is a communication terminal configured to communicate with base stations, including a memory and a processor. The processor executes a position acquisition task that acquires position information on the communication terminal, an accumulation task that accumulates connection frequency information and discontinuance frequency information that relate to communication with each of the base stations at a position of the communication terminal, a determination task that determines a connection priority for preferentially making a connection to each of the base stations from a position of the communication terminal, based on the connection frequency information and the discontinuance frequency information at the position of the communication terminal, a connection control task that controls a connection to each of one or more base stations, in a descending order of the determined connection priority, and a communication task that performs data communication with the one or more base stations.
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