MA38819B1 - Transmission device, transmission system and path switching method - Google Patents

Transmission device, transmission system and path switching method

Info

Publication number
MA38819B1
MA38819B1 MA38819A MA38819A MA38819B1 MA 38819 B1 MA38819 B1 MA 38819B1 MA 38819 A MA38819 A MA 38819A MA 38819 A MA38819 A MA 38819A MA 38819 B1 MA38819 B1 MA 38819B1
Authority
MA
Morocco
Prior art keywords
multiplexed signal
optical
wavelength multiplexed
wavelength
switching unit
Prior art date
Application number
MA38819A
Other languages
French (fr)
Other versions
MA38819A1 (en
Inventor
Hideo Kageshima
Toshiya Matsuda
Original Assignee
Nec Corp
Nippon Telegraph & Telephone
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 Nec Corp, Nippon Telegraph & Telephone filed Critical Nec Corp
Publication of MA38819A1 publication Critical patent/MA38819A1/en
Publication of MA38819B1 publication Critical patent/MA38819B1/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
    • H04B10/03—Arrangements for fault recovery
    • H04B10/032—Arrangements for fault recovery using working and protection systems
    • 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
    • H04B10/07955—Monitoring or measuring power
    • 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)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

La présente invention porte sur un dispositif de transmission avec lequel il est possible de résoudre le problème selon lequel la taille et le coût d'un dispositif de communication augmentent. Des unités de surveillance de lumière (331a et 331b) sont fournies en correspondance avec chaque chemin parmi de multiples chemins qui émettent un signal multiplexé en longueur d'onde, de multiples signaux de longueur d'onde optiques ayant des longueurs d'onde différentes étant multiplexés, et les unités de surveillance de lumière détectant le niveau de lumière du signal multiplexé en longueur d'onde transmis dans le chemin correspondant, ou les signaux de longueur d'onde optiques inclus dans ce signal multiplexé en longueur d'onde. Une unité de commutation (332) sélectionne l'un quelconque des multiples chemins et délivre le signal multiplexé en longueur d'onde émis dans le chemin sélectionné, ou les signaux de longueur d'onde optiques inclus dans ce signal multiplexé en longueur d'onde, en tant que signal optique. Sur la base des niveaux de lumière détectés par les unités de surveillance de lumière (331a et 331b) et du signal optique délivré par l'unité de commutation (332), une unité de traitement de signal (333) détecte des obstructions survenant dans les chemins, et change le chemin sélectionné par l'unité de commutation (332) en fonction du résultat de détection.The present invention relates to a transmission device with which it is possible to solve the problem that the size and cost of a communication device increase. Light monitoring units (331a and 331b) are provided corresponding to each of a plurality of paths that emit a wavelength multiplexed signal, wherein multiple optical wavelength signals having different wavelengths are provided. multiplexed, and the light monitoring units detecting the light level of the wavelength multiplexed signal transmitted in the corresponding path, or the optical wavelength signals included in this wavelength multiplexed signal. A switching unit (332) selects any one of the multiple paths and outputs the wavelength multiplexed signal transmitted in the selected path, or the optical wavelength signals included in this wavelength multiplexed signal. , as an optical signal. On the basis of the light levels detected by the light monitoring units (331a and 331b) and the optical signal delivered by the switching unit (332), a signal processing unit (333) detects obstructions occurring in the paths, and changes the path selected by the switching unit (332) according to the detection result.

MA38819A 2013-07-16 2014-04-07 Transmission device, transmission system and path switching method MA38819B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013147536 2013-07-16
PCT/JP2014/060070 WO2015008512A1 (en) 2013-07-16 2014-04-07 Transmission device, transmission system, and path-switching method

Publications (2)

Publication Number Publication Date
MA38819A1 MA38819A1 (en) 2016-08-31
MA38819B1 true MA38819B1 (en) 2017-05-31

Family

ID=52345987

Family Applications (1)

Application Number Title Priority Date Filing Date
MA38819A MA38819B1 (en) 2013-07-16 2014-04-07 Transmission device, transmission system and path switching method

Country Status (5)

Country Link
JP (1) JP6090876B2 (en)
BR (1) BR112016000693B1 (en)
MA (1) MA38819B1 (en)
RU (1) RU2637511C2 (en)
WO (1) WO2015008512A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003338788A (en) * 2002-05-21 2003-11-28 Nippon Telegr & Teleph Corp <Ntt> Optical fiber transmission system
WO2005008924A1 (en) * 2003-07-18 2005-01-27 Fujitsu Limited Transmission route switching control method and optical transmitter
JP2005295464A (en) * 2004-04-05 2005-10-20 Nippon Telegr & Teleph Corp <Ntt> Light transmission system
JP4423326B2 (en) * 2005-01-25 2010-03-03 富士通株式会社 Network management apparatus, optical add / drop node, and network management method
US7413147B2 (en) * 2005-08-23 2008-08-19 Young Kun Bae System and method for propellantless photon tether formation flight
US8290428B2 (en) * 2006-12-06 2012-10-16 Qualcomm Incorporated Methods and apparatus for RLC re-transmission schemes
JP5085365B2 (en) * 2008-02-13 2012-11-28 日本電信電話株式会社 Node device and extra-traffic transmission / reception method
RU2380834C1 (en) * 2008-06-23 2010-01-27 Юрий Федорович Кутаев Method for laser space communications and facility for its implementation

Also Published As

Publication number Publication date
RU2016104878A (en) 2017-08-21
BR112016000693A2 (en) 2017-07-25
BR112016000693B1 (en) 2022-11-16
MA38819A1 (en) 2016-08-31
WO2015008512A1 (en) 2015-01-22
RU2637511C2 (en) 2017-12-05
JPWO2015008512A1 (en) 2017-03-02
JP6090876B2 (en) 2017-03-08

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