Optical communication system and optical communication abnormality-recovery method
US9780867B2 · kind B2 · utility
0Cited by
10References
16Claims
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Key dates
| Filing date | Oct 21, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Oct 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/1301
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an optical communication abnormality-recovery system and method, when an abnormality occurs in transmission and reception of one wavelength of an optical line terminal of a PON system, an optical network unit that is performing communication at a certain wavelength switches the wavelength for performing the communication to another backup wavelength that is instructed in advance. The optical line terminal also performs switching so that the communication is performed using the same backup wavelength as in the optical network unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.