Method and apparatus for automatically upgrading passive optical networks (PONs)
US7609967B2 · kind B2 · utility
95Cited by
4References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2006 |
| Grant date | Oct 27, 2009 |
| Priority date | — |
| Expiry date | Jan 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0088
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus automatically maintains bi-directional communication between an optical network unit (ONU) and a central office (CO) in a passive optical network (PON) when the CO changes from a first PON mode to a second PON mode. The apparatus senses a PON mode relating to downstream data flow from the CO to the ONU; and upon detecting a change in the PON mode from the first PON mode to the second PON mode, synchronizes the ONU to operate according to the downstream and upstream configurations of the second PON mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.