Invention Grant
- Patent Title: Transmission quality estimation system, transmission quality estimation device, and transmission quality estimation method
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Application No.: US15777098Application Date: 2016-11-22
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Publication No.: US10686520B2Publication Date: 2020-06-16
- Inventor: Takuya Oda , Tetsuro Inui , Akira Hirano , Wataru Imajuku , Shoukei Kobayashi , Takafumi Tanaka , Yutaka Miyamoto , Hidehiko Takara
- Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Current Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3ebabc86
- International Application: PCT/JP2016/084618 WO 20161122
- International Announcement: WO2017/090616 WO 20170601
- Main IPC: H04B10/079
- IPC: H04B10/079 ; H04B10/2581 ; H04J14/00 ; H04B10/077 ; G02B6/02 ; H04J14/02 ; H04B10/54
Abstract:
A transmission quality estimation system includes, three or more nodes and a transmission quality estimation device configured to estimate, transmission quality. A multi-core fiber having a plurality of cores, the multi-core fiber being used in at least a partial segment of a connection between the nodes. A node of the nodes includes a core connection unit configured to drop, add or relay light transmitted from, to or to each of to the plurality of cores of the multi-core fiber. The transmission quality estimation device includes an estimation unit configured to estimate transmission quality between the nodes on the basis of a transmission quality measurement light dropped by the core connection unit.
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