Equalization delay agnostic protection switching in protected passive optical networks
US9025949B2 · kind B2 · utility
3Cited by
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19Claims
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Key dates
| Filing date | Nov 20, 2012 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | May 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0081
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems, methods and apparatus for operating an optical network terminal (ONT) in a passive optical network include maintaining an operational state in the passive optical network, estimating an upstream channel, adjusting equalization delay and physical layer frame offset values and switching from a backup mode to a primary mode of operation upon detecting a failure condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.