公开(公告)号：US20240073822A1

公开(公告)日：2024-02-29

申请号：US18269059

申请日：2020-12-25

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Shoko SHINOHARA ,  Yasuhiko INOUE ,  Yusuke ASAI ,  Yasushi TAKATORI

IPC分类号： H04W52/02 ,  H02J7/00 ,  H02J7/35

CPC分类号： H04W52/0261 ,  H02J7/0048 ,  H02J7/35

摘要： 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.

公开(公告)号：US20240040436A1

公开(公告)日：2024-02-01

申请号：US18268602

申请日：2020-12-25

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Shoko SHINOHARA ,  Yasuhiko INOUE ,  Yusuke ASAI ,  Yasushi TAKATORI

IPC分类号： H04W28/20 ,  H04L5/00

CPC分类号： H04W28/20 ,  H04L5/0039 ,  H04L5/0048

摘要： 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.

公开(公告)号：US20230299814A1

公开(公告)日：2023-09-21

申请号：US18016832

申请日：2020-07-27

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Akira KISHIDA ,  Kengo NAGATA ,  Yasuhiko INOUE ,  Yusuke ASAI ,  Yasushi TAKATORI

IPC分类号： H04B7/024 ,  H04W74/08

CPC分类号： H04B7/024 ,  H04W74/0808

摘要： 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.

公开(公告)号：US20230269683A1

公开(公告)日：2023-08-24

申请号：US18017781

申请日：2020-07-27

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Akira KISHIDA ,  Kengo NAGATA ,  Yasuhiko INOUE ,  Yusuke ASAI ,  Yasushi TAKATORI

IPC分类号： H04W56/00 ,  H04W76/15

CPC分类号： H04W56/0015 ,  H04W76/15

摘要： A base station of an embodiment includes first and second wireless signal processing units, and a link management unit. The first wireless signal processing unit is configured to transmit and receive a wireless signal using a first channel. The second wireless signal processing unit is configured to transmit and receive a wireless signal using a second channel that is different from the first channel. The link management unit stores shared time information synchronizing multi-links. The link management unit establishes a multi-link with a terminal apparatus using the first and second wireless signal processing units, and causes each of the first and second wireless signal processing units to transmit a beacon signal including the shared time information while the multi-link is established.

公开(公告)号：US20230199598A1

公开(公告)日：2023-06-22

申请号：US17927521

申请日：2020-05-28

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Mitsuki NAKAMURA ,  Wataru YAMADA ,  Yasuhiko INOUE ,  Shoko SHINOHARA ,  Yusuke ASAI ,  Yasushi TAKATORI

IPC分类号： H04W36/30 ,  H04W24/02 ,  H04W72/542 ,  H04B17/318

CPC分类号： H04W36/30 ,  H04W24/02 ,  H04W72/542 ,  H04B17/318 ,  H04W16/14

摘要： A radio communication apparatus according to an embodiment includes a first radio communication unit (1011) that transmits a radio signal by using a first channel, a second radio communication unit (1021) that transmits a radio signal by using a second channel different from the first channel, a first radio information acquisition unit (1013) that acquires first radio information containing received signal strength in the first radio communication unit and usage of the first channel, a second radio information acquisition unit (1023) that acquires second radio information containing received signal strength in the second radio communication unit and usage of the second channel, a determination unit (104) that determines whether to switch between the first radio communication unit and the second radio communication unit in accordance with the first radio information and the second radio information, and a switching unit (105) that switches between the first radio communication unit and the second radio communication unit in accordance with a result of determination by the determination unit.

公开(公告)号：US20230042638A1

公开(公告)日：2023-02-09

申请号：US17791464

申请日：2020-01-10

申请人： Nippon Telegraph and Telephone Corporation

发明人： Akira KISHIDA ,  Kengo NAGATA ,  Yasuhiko INOUE ,  Yusuke ASAI ,  Yasushi TAKATORI

IPC分类号： H04W74/00 ,  H04W72/04

摘要： A base station according to an embodiment of the present disclosure includes a generation unit (35) that generates a beacon including switching information (41) indicating whether to cooperatively use a frequency channel and a transmission unit (32) that transmits the beacon.

公开(公告)号：US20200373974A1

公开(公告)日：2020-11-26

申请号：US16989116

申请日：2020-08-10

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Tomoki MURAKAMI ,  Yusuke ASAI ,  Riichi KUDO ,  Koichi ISHIHARA ,  Masato MIZOGUCHI ,  Takeo ICHIKAWA

IPC分类号： H04B7/0452 ,  H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04W28/16 ,  H04B7/024 ,  H04B7/06 ,  H04B7/0456 ,  H04W88/08

摘要： 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.

公开(公告)号：US20170215083A1

公开(公告)日：2017-07-27

申请号：US15329188

申请日：2015-08-20

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Riichi KUDO ,  Hirantha Sithira ABEYSEKERA ,  Yasushi TAKATORI ,  Takeo ICHIKAWA ,  Yusuke ASAI ,  Masato MIZOGUCHI

IPC分类号： H04W16/14 ,  H04W76/02 ,  H04W72/08

摘要： A wireless communication system includes a plurality of terminal apparatuses that perform communication using a first frequency band in which communication based on a random access scheme is performed and a second frequency band which is different from the first frequency band, a first base station apparatus that performs communication using the first frequency band, a second base station apparatus that performs communication using the second frequency band, and a cooperation control apparatus that selects a terminal apparatus that transmits user data via the first base station apparatus from among the plurality of terminal apparatuses based on information acquired by the first base station apparatus and the second base station apparatus. The cooperation control apparatus selects which of the first base station apparatus and the selected terminal apparatus acquires access right for transmission of the user data via the first base station apparatus, and notifies the selected terminal apparatus and the first base station apparatus of the selection result.

公开(公告)号：US20240305555A1

公开(公告)日：2024-09-12

申请号：US18269009

申请日：2020-12-25

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Shoko SHINOHARA ,  Yasuhiko INOUE ,  Yusuke ASAI ,  Yasushi TAKATORI

IPC分类号： H04L45/121 ,  H04L45/00 ,  H04L45/122

CPC分类号： H04L45/121 ,  H04L45/122 ,  H04L45/20

摘要： A wireless communication management apparatus (100) according to one aspect of the present invention includes a path calculation unit (152) that, on the basis of wireless environment information collected from one or more relay base stations (210) and a plurality of terminals (300) configured to wirelessly communicate with a root base station (200), calculates one or more path candidates which are connectable paths that can be taken as a network configuration by multi-hop communication and in which a traffic amount of each relay base station (210) included in the connectable paths is less than a threshold, and a determination unit (153) that determines one of the one or more path candidates as an optimal path.

公开(公告)号：US20240275565A1

公开(公告)日：2024-08-15

申请号：US18567429

申请日：2021-06-10

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Shoko SHINOHARA ,  Tomoyuki YAMADA ,  Yusuke ASAI ,  Yasushi TAKATORI

IPC分类号： H04L5/00 ,  H04W72/23 ,  H04W72/51

CPC分类号： H04L5/0087 ,  H04L5/0037 ,  H04W72/23 ,  H04W72/51

摘要： In a wireless communication system in which an AP 1 and a plurality of STAs 2 perform wireless communication, the AP 1 notifies each of the STAs 2 of a schedule of channel transition including a transition destination channel and a timing of channel transition different for each of the STAs 2 (or each group thereof), and then executes a channel switching process, and when the STA 2 receives the schedule of channel transition, the STA 2 stops transmission, and thereafter executes a connection process with the AP 1 at the timing according to the schedule. It is possible to shorten the time until the communication with the AP is resumed by avoiding collision of wireless frames between the terminals (STAs) when the channel is changed.