Patent · US Active

Method and apparatus for providing a differential latency

US9838112B2 · kind B2 · utility

4Cited by

1References

27Claims

0Family size

Assignee

ADVA Optical Networking SE · DE

Inventor

Klaus Grobe · Planegg, DE

Key dates

Filing date	Oct 30, 2015
Grant date	Dec 5, 2017
Priority date	—
Expiry date	Dec 31, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH04B2210/078
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

An apparatus and method for providing a differential latency, DL, between an upstream, US, transmission and a downstream, DS, transmission via an optical transmission link (OTL), said apparatus comprising a measurement unit (2) configured to measure the round trip delays, RTD, of at least two measurement signals having different measurement wavelengths; and a processing unit (3) configured to derive an upstream, US, delay of at least one optical signal at an upstream wavelength from the at least two measured round trip delays, RTD, and to derive a downstream, DS, delay of at least one optical signal at a downstream wavelength from the at least two measured round trip delays, RTD, wherein the differential latency, DL, is calculated on the basis of the derived delays, RTD.

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