Method and system for dynamic bandwidth allocation in an optical access network
US6546014B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Apr 7, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0094
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical access network and method for transmitting optical data in the network utilizes an interleaved polling scheme to efficiently use the available bandwidth of the network. The use of the interleaved polling scheme allows a central terminal of the network to dynamically allocate upstream bandwidth from remote terminals of the network to the central terminal in response to the amount of data that is waiting at the remote terminals to be transmitted to the OLT. In one embodiment, the optical access network is based on Passive Optical Network (PON) technology. In another embodiment, the optical access network utilizes Ethernet protocol to encapsulate data in Ethernet frames for transmission. Thus, in these embodiments, the optical access network includes all of the advantages associated with the PON technology and/or the Ethernet protocol. In addition, since the allocation of upstream bandwidth is on an as needed basis, loss of bandwidth due to unfilled time slots is substantially eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.