Congestion control in an optical line terminal
US8913549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2011 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Apr 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0064
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
There are disclosed systems and methods for detecting and controlling congestion in an Optical Line Terminal (OLT). The OLT has a plurality of ports. Each port of the plurality of ports communicates with at least one Optical Network Unit (ONU), and each port of the plurality of ports has a respective enforced maximum upstream bandwidth. For example, the maximum upstream bandwidth may be enforced by a Dynamic Bandwidth Allocation (DBA) algorithm. The OLT further includes an uplink port through which data received from each of the plurality of ports are transmitted. In one embodiment, if there is congestion of the data at the uplink port, then the enforced maximum upstream bandwidth for at least one port of the plurality of ports is modified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.