公开(公告)号：US20240340829A1

公开(公告)日：2024-10-10

申请号：US18682267

申请日：2021-08-18

申请人： Nippon Telegraph and Telephone Corporation

发明人： Akira KISHIDA ,  Kengo NAGATA ,  Shoko SHINOHARA ,  Hanae OTANI ,  Yusuke ASAI ,  Yasushi TAKATORI

IPC分类号： H04W56/00 ,  H04W74/0833

CPC分类号： H04W56/0045 ,  H04W74/0833

摘要： A transmitting station which is a station that transmits a wireless signal includes a first wireless signal processing unit, a second wireless signal processing unit, and a transmission timing adjustment unit. The first wireless signal processing unit transmits and receives a wireless signal using a first channel. The second wireless signal processing unit transmits and receives a wireless signal using a second channel different from the first channel. The transmission timing adjustment unit adjusts transmission timings of first data and second data on the basis of a first status associated with the first wireless signal processing unit and a second status associated with the second wireless signal processing unit.

公开(公告)号：US20240334468A1

公开(公告)日：2024-10-03

申请号：US18580165

申请日：2021-07-20

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Shoko SHINOHARA ,  Yusuke ASAI ,  Yasushi TAKATORI ,  Junichi IWATANI ,  Tomoyuki YAMADA ,  Yoshitaka SHIMIZU

IPC分类号： H04W72/542 ,  H04W72/0446 ,  H04W76/20

CPC分类号： H04W72/542 ,  H04W72/0446 ,  H04W76/20

摘要： A wireless communication system includes a plurality of wireless communication apparatuses forming a wireless communication network. The system also includes one or a plurality of control apparatuses that controls the plurality of wireless communication apparatuses. Each of the plurality of wireless communication apparatuses includes a plurality of network interface controllers (NICs) that performs wireless communication through different channels that do not overlap each other. The control apparatus executes channel switching processing of switching a use state of the plurality of NICs in each wireless communication apparatus. The control apparatus controls the plurality of wireless communication apparatuses to use NICs of the same channel in the same period. The control apparatus controls to share connection information regarding each of the plurality of NICs in advance before the channel switching processing.

公开(公告)号：US20230061186A1

公开(公告)日：2023-03-02

申请号：US17790263

申请日：2020-01-10

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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

IPC分类号： H04W4/06

摘要： A base station (10) according to an embodiment includes a data processing unit (101) and a wireless signal processing unit (103). The data processing unit (101) generates a MAC frame. The MAC frame includes input data and an identification bit (CB). The identification bit (CB) indicates that data is extended broadcast data. The wireless signal processing unit (103) converts the MAC frame into a wireless signal to distribute the wireless signal.

公开(公告)号：US20230031578A1

公开(公告)日：2023-02-02

申请号：US17791607

申请日：2020-01-10

申请人： Nippon Telegraph and Telephone Corporation

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

IPC分类号： G06F1/3212 ,  G06F1/324

摘要： A data processing apparatus (14) according to an embodiment includes a data processing unit (105) and a wireless communication unit (104). The data processing unit (105) converts input data. The wireless communication unit (104) receives the data converted by the data processing unit (105) and wirelessly transmits the input data to an access point. The data processing unit (105) converts, when a remaining amount input from a battery (12) is in a first state, the input data with a first setting and outputs the converted data to the wireless communication unit (104). The data processing unit (105) converts, when the remaining amount of the battery (12) is in a second state different from the first state, the input data with a second setting and outputs the converted data to the wireless communication unit (104). A capacity per unit time of the data after conversion is different between the first setting and the second setting.

公开(公告)号：US20220386378A1

公开(公告)日：2022-12-01

申请号：US17885345

申请日：2022-08-10

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Shoko SHINOHARA ,  Yasuhiko INOUE ,  Junichi IWATANI ,  Masato MIZOGUCHI

IPC分类号： H04W74/08 ,  H04W16/08 ,  H04W28/06 ,  H04L1/00 ,  H04W72/08

摘要： A format that includes a BSSID of a transmitting station within a preamble of the frame is an HE format, and a format that does not include a BSSID within the preamble but includes a BSSID in a MAC header is a Non-HE format; and a wireless station in the BSS includes a control part which checks a format of a frame received at a predetermined receiver sensitivity or above, and continues demodulation of the received frame if the format is HE format and the BSSID in the received frame is consistent with its own BSS, and stops the demodulation of the received frame if the HE format and the BSSID in the received frame is not consistent with its own BSS.

公开(公告)号：US20220217504A1

公开(公告)日：2022-07-07

申请号：US17603390

申请日：2020-04-13

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Yasuhiko INOUE ,  Shoko SHINOHARA ,  Takafumi HAYASHI

IPC分类号： H04W4/06 ,  H04L1/00 ,  H04L5/00 ,  H04W74/08

摘要： A wireless communication system includes a plurality of transmission devices configured to receive broadcast/multicast data transmitted from a broadcast/multicast data transmission device, convert the broadcast/multicast data into wireless frames, and broadcast/multicast the wireless frames to a plurality of reception devices, and the plurality of reception devices configured to receive the wireless frames broadcasted/multicasted from the plurality of transmission devices and acquire the broadcast/multicast data, and each of the plurality of transmission devices includes a broadcast/multicast transmission unit configured to generate the same wireless frame from the broadcast/multicast data and broadcast/multicast the generated wireless frame at the same transmission timing using the same MCS.

公开(公告)号：US20220141672A1

公开(公告)日：2022-05-05

申请号：US17435488

申请日：2020-02-25

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Riku OMIYA ,  Toshiro NAKAHIRA ,  Hirantha ABEYSEKERA ,  Shoko SHINOHARA ,  Takafumi HAYASHI ,  Yasushi TAKATORI

IPC分类号： H04W16/18 ,  H04W16/24

摘要： A wireless base station setting position calculation method includes a step Si for assuming the setting area to be a rectangle, receiving an input of longitudinal and lateral lengths of a setting area and the number of wireless base stations to be set “s”, and determining one or more candidates of a number of divisions “d” of the setting area according to the number of wireless base stations “s”, a step S2 for representing the number of divisions “d” in a division ratio x:y and selecting, for each number of divisions “d”, according to the longitudinal and lateral lengths of the setting area, a division ratio at which diagonal line lengths of divided areas are minimized, a step S3 for performing, for each number of divisions “d”, adjustment of a division pattern until a difference m between the number of divisions “d” and the number of wireless base stations “s” decreases to 0, a step S4 for calculating, for each number of divisions “d”, a sum of the diagonal line lengths of the divided areas and selecting the division pattern with which the sum is minimized, and a step S5 for setting the wireless base stations in the centers of gravity of the divided areas in the division pattern selected in step S4.

公开(公告)号：US20200178303A1

公开(公告)日：2020-06-04

申请号：US16787827

申请日：2020-02-11

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Shoko SHINOHARA ,  Yasuhiko INOUE ,  Akira KISHIDA ,  Riichi KUDO ,  Masato MIZOGUCHI

IPC分类号： H04W74/08 ,  H04W28/02 ,  H04B7/0452

摘要： A predetermined STA includes a station information collection unit collecting from the STA itself and other STAs station information used for selection of STAs performing simultaneous transmission and for control of the simultaneous transmission, and a simultaneous-transmission request unit knowing occurrence of a QoS data frame based on the station information and transmitting a request frame requesting the simultaneous transmission to an AP. The AP includes a station information collection unit; a simultaneous-transmission determination unit selecting a combination of the STAs performing the simultaneous transmission based on the station information by reception of the request frame; and a trigger transmission unit transmitting to each of the STAs performing the simultaneous transmission a trigger frame instructing to performs the simultaneous transmission and including information necessary for controlling the simultaneous transmission. Each of the STAs designated by the trigger frame is configured to simultaneously transmit the wireless frames to the AP.

公开(公告)号：US20180242222A1

公开(公告)日：2018-08-23

申请号：US15752751

申请日：2016-08-25

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Shoko SHINOHARA ,  Yasuhiko INOUE ,  Masato MIZOGUCHI

IPC分类号： H04W48/06 ,  H04W74/08 ,  H04W52/24 ,  H04W72/08

CPC分类号： H04W48/06 ,  H04L1/0001 ,  H04L1/0003 ,  H04W52/243 ,  H04W72/082 ,  H04W74/0816 ,  H04W84/12

摘要： Provided is a wireless communication system in which a plurality of basic service sets (BSSs) performing wireless transmission from a transmitting station to a destination station by performing access control based on CSMA/CA exist adjacent to each other, and in which wireless communication is performed by controlling a CCA threshold considering an interference power value between each BSS that uses the same channel, in which the transmitting station includes a control block determining the CCA threshold value according to the interference power value of the BSS considered as an interference source, calculating a SINR in the destination station according to the interference power value, determining a MCS which is a combination of a modulation scheme and a code rate according to the SINR, and performing the access control based on the CSMA/CA.

公开(公告)号：US20240314827A1

公开(公告)日：2024-09-19

申请号：US18268587

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： H04W72/541 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/51

CPC分类号： H04W72/541 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/51

摘要： A wireless communication management apparatus includes a determination unit, an evaluation unit, and a selection unit. The determination unit determines an interference relationship of a combination of bandwidth and channel on the basis of wireless environment information collected from one or more terminals capable of wireless communication with a base station. The evaluation unit calculates an evaluation value for each combination of bandwidth and channel on the basis of the interference relationship. The selection unit selects one combination from the combinations of bandwidth and channel on the basis of the evaluation value.