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1. WO2018130362 - APPARATUS AND METHOD FOR MONITORING OPTICAL LINKS

Publication Number WO/2018/130362
Publication Date 19.07.2018
International Application No. PCT/EP2017/082581
International Filing Date 13.12.2017
IPC
H04B 10/071 2013.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
071using a reflected signal, e.g. using optical time-domain reflectometers
H04J 14/08 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
14Optical multiplex systems
08Time-division multiplex systems
CPC
H04B 10/071
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
071using a reflected signal, e.g. using optical time-domain reflectometers [OTDRs]
H04B 10/0779
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
07Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
075using an in-service signal
077using a supervisory or additional signal
0779Monitoring line transmitter or line receiver equipment
H04B 10/40
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
40Transceivers
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE]/[SE]
Inventors
  • URBAN, Patryk
  • VILLAFANI CABALLERO, Diego Rodrigo
  • VON DER WEID, Jean, Pierre
Agents
  • ERICSSON
Priority Data
62/446,00513.01.2017US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHOD FOR MONITORING OPTICAL LINKS
(FR) APPAREIL ET PROCÉDÉ DE SURVEILLANCE DE LIAISONS OPTIQUES
Abstract
(EN)
A method in a transceiver apparatus for monitoring an optical link over which one or more data signals are to be transmitted comprises time interleaving a test signal with an auxiliary management and control channel, AMCC, signal to form a time- interleaved signal. The time-interleaved signal is transmitted with one or more downstream data signals over the optical link. A backscattered test signal is received to monitor the optical link.
(FR)
L'invention concerne un procédé exécuté dans un appareil émetteur-récepteur pour surveiller une liaison optique sur laquelle un ou plusieurs signaux de données doivent être transmis. Le procédé consiste à entrelacer temporellement un signal d'essai avec un signal de canal de gestion et de commande auxiliaire (AMCC) pour former un signal à entrelacement temporel. Le signal à entrelacement temporel est transmis avec un ou plusieurs signaux de données aval sur la liaison optique. Un signal d'essai rétrodiffusé est reçu pour surveiller la liaison optique.
Also published as
EP2017826164
Latest bibliographic data on file with the International Bureau