公开(公告)号：US20240389147A1

公开(公告)日：2024-11-21

申请号：US18691460

申请日：2021-10-01

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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

IPC: H04W74/0816 ,  H04W52/02 ,  H04W72/121 ,  H04W84/12

Abstract: In a wireless communication method between a base station and a plurality of wireless terminals, the base station includes a plurality of first wireless modules that perform wireless communication using different channels that do not overlap each other, and each of the plurality of wireless terminals includes a second wireless module that performs wireless communication using any one communication channel. The wireless communication method includes executing a channel switching process of switching use states of the plurality of first wireless modules according to a predetermined schedule so as to enable any one of the plurality of first wireless modules to carry out transmission and to prohibit the other thereof from carrying out transmission. Further, there is a sleeping of an operation of the second wireless module while the first wireless module that performs wireless communication using the communication channel is prohibited from carrying out transmission.

公开(公告)号：US20240340829A1

公开(公告)日：2024-10-10

申请号：US18682267

申请日：2021-08-18

Applicant: Nippon Telegraph and Telephone Corporation

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

IPC: H04W56/00 ,  H04W74/0833

CPC classification number: H04W56/0045 ,  H04W74/0833

Abstract: 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

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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

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

CPC classification number: H04W72/542 ,  H04W72/0446 ,  H04W76/20

Abstract: 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：US20240098783A1

公开(公告)日：2024-03-21

申请号：US18276449

申请日：2021-02-18

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Hanae OTANI ,  Akira KISHIDA ,  Kengo NAGATA ,  Yusuke ASAI ,  Yasuhiko INOUE ,  Yasushi TAKATORI

IPC: H04W74/08

CPC classification number: H04W74/0808

Abstract: 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.

公开(公告)号：US20240064835A1

公开(公告)日：2024-02-22

申请号：US18269848

申请日：2021-03-24

Applicant: Nippon Telegraph and Telephone Corporation

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

IPC: H04W76/15 ,  H04L1/1607

CPC classification number: H04W76/15 ,  H04L1/1642

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.

公开(公告)号：US20230354186A1

公开(公告)日：2023-11-02

申请号：US18017958

申请日：2020-07-27

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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

IPC: H04W52/02

CPC classification number: H04W52/0206 ,  H04W52/0212

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.

公开(公告)号：US20230140487A1

公开(公告)日：2023-05-04

申请号：US17910912

申请日：2020-03-17

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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

IPC: H04W28/26 ,  H04W74/08

Abstract: A base station serving as a second base station includes a wireless signal processing unit capable of using a first channel held in common with another base station serving as a first base station. The wireless signal processing unit is configured to execute first cooperative processing in a case of the first base station acquiring a transmission right for the first channel that is a primary channel. The first cooperative processing includes, on the basis of the second base station acquiring a transmission right for a second channel that is a secondary channel of the second base station, deciding to transmit by the second channel.

公开(公告)号：US20230061186A1

公开(公告)日：2023-03-02

申请号：US17790263

申请日：2020-01-10

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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

IPC: H04W4/06

Abstract: 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

Applicant: Nippon Telegraph and Telephone Corporation

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

IPC: G06F1/3212 ,  G06F1/324

Abstract: 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：US20210367691A1

公开(公告)日：2021-11-25

申请号：US16968839

申请日：2019-02-13

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Ryo MIYATAKE ,  Hiroyuki SHIBA ,  Yusuke ASAI ,  Kohei SUZAKI

IPC: H04B17/391 ,  G01S5/02 ,  H04W16/18 ,  H04B17/309

Abstract: A synthetic reception strength value in a case of synthesizing indirect waves of radio waves generated due to an obstruction is calculated for each piece of receive antenna coordinate information in consideration of a phase of each indirect wave. Relation information indicating relation between input information and teaching information is generated. The input information is the synthetic reception strength value for each piece of the receive antenna coordinate information corresponding to transmit antenna coordinate information. The teaching information is information indicating a reception state of the radio waves being calculated using a method of actually measuring the radio waves output by the transmit antenna at a position of a receive antenna or a method other than the method of the actual measurement. Strength of the radio waves is estimated by calculating the information indicating the reception state of the radio waves by using the transmit antenna coordinate information for evaluation and the generated relation information.