公开(公告)号：US20240275671A1

公开(公告)日：2024-08-15

申请号：US18565892

申请日：2021-06-28

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takuya ODA ,  Takuya OHARA ,  Fumikazu INUZUKA ,  Katsuaki HIGASHIMORI ,  Kengo SHINTAKU

IPC: H04L41/0816 ,  H04B10/27 ,  H04L41/40

CPC classification number: H04L41/0816 ,  H04B10/27 ,  H04L41/40

Abstract: A communication system is a communication system that includes: a plurality of transmission devices; a setting server that receives an instruction to change data related to setting of a data network; and a control server that performs a control process related to the plurality of transmission devices and the data network on a basis of the data. In the communication system, a setting processing unit is provided to perform a process for constructing a customer control network between a first transmission device and the setting server by using a second transmission device as a relay device, when the first transmission device and the second transmission device are connected by an optical transmission line. The first transmission device includes: a connection processing unit that performs a process for constructing a control network between the first transmission device and the control server by using the second transmission device as a relay device, when the first transmission device and the second transmission device are connected by the optical transmission line; and a device control unit that performs a process for constructing the data network for the first transmission device by using the second transmission device as a relay device, when the first transmission device and the second transmission device are connected by the optical transmission line.

公开(公告)号：US20240187763A1

公开(公告)日：2024-06-06

申请号：US18286415

申请日：2021-04-21

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Kengo SHINTAKU ,  Takuya OHARA ,  Fumikazu INUZUKA ,  Takuya ODA ,  Katsuaki HIGASHIMORI

IPC: H04Q11/00 ,  H04B10/27

CPC classification number: H04Q11/0062 ,  H04B10/27 ,  H04Q2011/0064 ,  H04Q2011/0086

Abstract: A transmission device, which is provided between user devices and transmits a client signal transmitted by the user devices through an optical transmission network, the transmission device comprising: a setting unit of setting a path having a band for accommodating the client signal obtained from a monitoring result of a control signal transmitted and received at a time of negotiation between the user devices; and a transfer unit of transferring the client signal using the path set by the setting unit.

公开(公告)号：US20230344753A1

公开(公告)日：2023-10-26

申请号：US18028042

申请日：2020-09-25

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Takuya ODA ,  Takuya OHARA ,  Fumikazu INUZUKA ,  Takafumi TANAKA ,  Masayuki SHIMODA

IPC: H04L45/30 ,  H04L12/50 ,  H04L12/54

CPC classification number: H04L45/30 ,  H04L12/50 ,  H04L12/56

Abstract: Distribution devices are each connected to a single or a plurality of line switching networks and a single or a plurality of packet switching networks, selects either the line switching network or the packet switching network as the distribution destination on the basis of distribution policy information in a case where data to which the service providing device or the calculation device is set as a transmission destination, and transmits the received data to the selected switching network is received, and the distribution device captures the received data on the basis of the aggregation policy information and transmit the data to the service providing device or the calculation device corresponding to the transmission destination of the captured data in a case where data transmitted by the other distribution device is received from the line switching network or the packet switching network.

公开(公告)号：US20230232307A1

公开(公告)日：2023-07-20

申请号：US18029722

申请日：2020-10-22

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Takafumi Tanaka ,  Takuya OHARA ,  Fumikazu INUZUKA ,  Takuya ODA ,  Masayuki SHIMODA

IPC: H04W40/04 ,  H04B10/114 ,  H04W72/0446

CPC classification number: H04W40/04 ,  H04B10/114 ,  H04W72/0446

Abstract: An optical path design device includes: a search unit configured to search for one or more route possibilities from a start point to an end point in an optical network including one or more transmission paths as links and a plurality of node devices as nodes on the basis of topology information of the optical network, information on the start point, and information on the end point; a time derivation unit configured to derive available time which is time at which a frequency band including one or more frequency slots becomes available for communication for each of the transmission paths or the node devices included in the route; and a design unit configured to select the route from the one or more route possibilities that have been searched for on the basis of the available time derived for each of the transmission paths or the node devices and select a frequency band of an optical signal to be transmitted through an optical path in the selected route.

公开(公告)号：US20220321210A1

公开(公告)日：2022-10-06

申请号：US17632589

申请日：2019-08-05

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Kei KITAMURA ,  Fumikazu INUZUKA ,  Kengo SHINTAKU ,  Takuya ODA ,  Takafumi TANAKA ,  Masahito TOMIZAWA

IPC: H04B10/032

Abstract: A transmission apparatus includes a control unit for carrying out processing to secure a resource for a standby system path in response to detection of a sign of failure in an active system path.

公开(公告)号：US20220214889A1

公开(公告)日：2022-07-07

申请号：US17603609

申请日：2020-04-07

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takuya ODA ,  Shokei KOBAYASHI ,  Akira HIRANO

IPC: G06F9/44 ,  G06F9/54

Abstract: An adapting device according to an embodiment includes: a first storage unit configured to store correspondence information representing a correspondence relation between processing requested by a higher-level system and a method for implementing the processing in a lower-level system; a conversion unit configured to convert a processing request from the higher-level system to the lower-level system into a processing procedure capable of being implemented in the lower-level system and supply the processing procedure to the lower-level system; and an additional information processing unit configured to generate additional information to be supplied to the lower-level system together with the processing procedure. The conversion unit described above converts the processing request into the processing procedure based on the correspondence information, and the additional information processing unit described above includes, in the additional information, relation information representing a relationship between the higher-level system that is a request source and the lower-level system that is a request destination.

公开(公告)号：US20210385146A1

公开(公告)日：2021-12-09

申请号：US17286730

申请日：2019-10-04

Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Inventor： Takuya ODA ,  Shokei KOBAYASHI ,  Akira HIRANO

IPC: H04L12/26 ,  H04L12/24

Abstract: An estimation method includes: generating information regarding success or not success in a connectivity checking test between “N” nodes in a case in which a failure occurs in a verification target path including the nodes, the information being generated as pattern information for each failure location; selecting “M” network devices from among a plurality of network devices in accordance with occurrence of the failure; executing the connectivity checking test between the selected network devices; comparing a checking result of the connectivity checking test with pattern information that satisfies “N=M” in the pattern information; and estimating the failure location in the service path based on the failure location associated with the pattern information in a case in which the pattern information that satisfies “N=M” matches the checking result.