Systems and methods for compensating coherent optics delay asymmetry in a packet optical network
US10594395B2 · kind B2 · utility
9Cited by
13References
18Claims
0Family size
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Key dates
| Filing date | Jul 23, 2018 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Jul 23, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2203/0085
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods of compensating for the delay asymmetry of coherent optical modems in a packet optical network include measuring fill levels of one or more queues each including an elastic First-In-First-Out (FIFO) circuit used in a transport mapping scheme, wherein the transport mapping scheme is one or more of client mapping to Optical Transport Unit (OTU) and OTU mapping to Flexible OTN (FlexO); and performing adjustments in a clock based in part on the measured fill levels, wherein the adjustments are configured to reduce a Time Error (TE) in the packet network based on delay asymmetry between two nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.