Bandwidth allocation device and method to guarantee QoS in ethernet passive optical access network
US7623451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2006 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Nov 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/2856
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides a device and method for allocating a bandwidth to a plurality of optical network units (ONUs) for transmitting an uplink frame in the EPON. The bandwidth allocation device includes a plurality of optical network units and an optical line terminal (OLT). The optical network units classify uplink data to be transmitted to an optical line terminal according to a predetermined priority, and transmit the classified uplink data by receiving an allocated bandwidth according to each class from the optical line terminal. The optical line terminal preferentially distributes a predetermined bandwidth for transmitting uplink frames of a highest priority class to the optical network units and then dynamically distributes a remained bandwidth form transmitting the uplink frames for remained classes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.