WO2008114438A1 - 伝送路監視方法及び装置 - Google Patents

伝送路監視方法及び装置 Download PDF

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Publication number
WO2008114438A1
WO2008114438A1 PCT/JP2007/055735 JP2007055735W WO2008114438A1 WO 2008114438 A1 WO2008114438 A1 WO 2008114438A1 JP 2007055735 W JP2007055735 W JP 2007055735W WO 2008114438 A1 WO2008114438 A1 WO 2008114438A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission line
optical
main signal
signal
monitoring method
Prior art date
Application number
PCT/JP2007/055735
Other languages
English (en)
French (fr)
Inventor
Katsuji Yamaguchi
Junichi Yoshimura
Original Assignee
Fujitsu Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to CN2007800521948A priority Critical patent/CN101636940B/zh
Priority to JP2009505037A priority patent/JP5195746B2/ja
Priority to PCT/JP2007/055735 priority patent/WO2008114438A1/ja
Publication of WO2008114438A1 publication Critical patent/WO2008114438A1/ja
Priority to US12/559,768 priority patent/US8326144B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/297—Bidirectional amplification
    • H04B10/2972—Each direction being amplified separately
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
    • H04J14/0246—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU using one wavelength per ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
    • H04J14/025—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0254—Optical medium access
    • H04J14/0267—Optical signaling or routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0254—Optical medium access
    • H04J14/0272—Transmission of OAMP information
    • H04J14/0275—Transmission of OAMP information using an optical service channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0279—WDM point-to-point architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0254—Optical medium access
    • H04J14/0256—Optical medium access at the optical channel layer
    • H04J14/0258—Wavelength identification or labelling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0254—Optical medium access
    • H04J14/0272—Transmission of OAMP information
    • H04J14/0276—Transmission of OAMP information using pilot tones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

　主信号伝送路中に設置された光中継器の内の一つで応答される監視信号を光主信号に重畳して該主信号伝送路に送出するとき、該主信号伝送路とは別に設けられ、該主信号伝送路中の光中継器に対応して光中継器が設置された光伝送路であるダークファイバに該光主信号を分岐させ、監視すべき所望のダークファイバからの光主信号を選択すると共に、該選択された光主信号から該監視信号を抽出して該所望のダークファイバの良否判定を行う。
PCT/JP2007/055735 2007-03-20 2007-03-20 伝送路監視方法及び装置 WO2008114438A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2007800521948A CN101636940B (zh) 2007-03-20 2007-03-20 传输路径监控方法和装置
JP2009505037A JP5195746B2 (ja) 2007-03-20 2007-03-20 伝送路監視方法及び装置
PCT/JP2007/055735 WO2008114438A1 (ja) 2007-03-20 2007-03-20 伝送路監視方法及び装置
US12/559,768 US8326144B2 (en) 2007-03-20 2009-09-15 Transmission path monitoring method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/055735 WO2008114438A1 (ja) 2007-03-20 2007-03-20 伝送路監視方法及び装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/559,768 Continuation US8326144B2 (en) 2007-03-20 2009-09-15 Transmission path monitoring method and device

Publications (1)

Publication Number Publication Date
WO2008114438A1 true WO2008114438A1 (ja) 2008-09-25

Family

ID=39765559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/055735 WO2008114438A1 (ja) 2007-03-20 2007-03-20 伝送路監視方法及び装置

Country Status (4)

Country Link
US (1) US8326144B2 (ja)
JP (1) JP5195746B2 (ja)
CN (1) CN101636940B (ja)
WO (1) WO2008114438A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
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EP2933934A1 (en) 2014-04-18 2015-10-21 Fujitsu Limited Optical transmission device and optical transmission method

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CN102801464B (zh) * 2011-05-27 2015-03-25 华为海洋网络有限公司 检测海底光缆线路的方法、传送装置和系统
US9264133B2 (en) * 2011-07-08 2016-02-16 Telefonaktiebolaget L M Ericsson (Publ) Network traffic monitoring apparatus for monitoring network traffic on a network path and a method of monitoring network traffic on a network path
JP6222084B2 (ja) * 2012-05-18 2017-11-01 日本電気株式会社 光システム
WO2013183146A1 (ja) * 2012-06-07 2013-12-12 富士通株式会社 光ファイバ接続状態判定方法、光ファイバ接続状態判定用光モジュール及び光伝送装置
US9094147B2 (en) * 2013-03-15 2015-07-28 Xtera Communications, Inc. System control of repeatered optical communications system
EP3329615B1 (en) * 2015-07-27 2021-04-21 Telefonaktiebolaget LM Ericsson (publ) Apparatus for protecting an optical link
US10110466B2 (en) * 2015-11-23 2018-10-23 Tyco Electronics Subsea Communications Llc Optical communication system with distributed wet plant manager
US10855374B2 (en) * 2016-07-01 2020-12-01 Nec Corporation Relay device, monitoring system and monitoring information transmission method
US11705971B2 (en) * 2017-10-30 2023-07-18 Nec Corporation Submarine optical communication system and submarine branching apparatus
WO2019116776A1 (ja) * 2017-12-15 2019-06-20 日本電気株式会社 海底光伝送装置及び海底光通信システム
FR3076414B1 (fr) * 2017-12-28 2020-11-06 Thales Sa Systeme de communications de donnees comportant un canal principal haut debit et un canal de secours bas debit a haute fiabilite
JP7359214B2 (ja) * 2019-09-10 2023-10-11 日本電気株式会社 海底光通信システム
WO2021060124A1 (ja) * 2019-09-27 2021-04-01 日本電気株式会社 光通信システム、光通信装置、光通信方法及び記憶媒体

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JP2003244080A (ja) * 2002-02-14 2003-08-29 Nippon Telegr & Teleph Corp <Ntt> ダークファイバ監視試験方法および装置

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Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH09105875A (ja) * 1995-06-07 1997-04-22 Tektronix Inc 光スイッチ
JP2002044037A (ja) * 2000-07-25 2002-02-08 Nippon Sogo Shisetsu:Kk 光線路網の異常監視方法
JP2003244080A (ja) * 2002-02-14 2003-08-29 Nippon Telegr & Teleph Corp <Ntt> ダークファイバ監視試験方法および装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2933934A1 (en) 2014-04-18 2015-10-21 Fujitsu Limited Optical transmission device and optical transmission method
US9712248B2 (en) 2014-04-18 2017-07-18 Fujitsu Limited Optical transmission device and optical transmission method

Also Published As

Publication number Publication date
CN101636940A (zh) 2010-01-27
US8326144B2 (en) 2012-12-04
CN101636940B (zh) 2013-03-06
JP5195746B2 (ja) 2013-05-15
US20100027993A1 (en) 2010-02-04
JPWO2008114438A1 (ja) 2010-07-01

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