Patent · US Active

Monitoring of a passive optical network (PON)

US9577748B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Gemma Vall-Llosera · Järfälla, SE
Fabio Bottoni · Milano, IT
Stefan Höst · Svedala, SE
Neiva Lindqvist · Ljungby, SE
Patryk Urban · Ljungby, SE

Key dates

Filing date	May 7, 2012
Grant date	Feb 21, 2017
Priority date	—
Expiry date	May 7, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04Q2011/0083
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A Passive Optical Network, PON, comprising an Optical Line Termination, OLT, connected to one or more Optical Network Terminals, ONT, over an Optical Distribution Network, ODN, is monitored by a monitoring device. The monitoring device comprises an Optical Frequency Domain Reflectometer, OFDR, and is arranged to monitor the optical power received by the OLT and the ONTs of the PON, and to perform transceiver analysis of the OLT and the ONTs, combined with an OFDR analysis of the ODN, based on the monitored optical power violating a threshold.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.