Method and apparatus for discovering remote nodes in an ethernet passive optical network
US7382739B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2004 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Dec 6, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/403
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a system that facilitates discovery of remote nodes in EPONs. The system includes a central node and at least one remote node. During operation, the system first receives a solicitation message from the central node, wherein the solicitation message includes a time stamp indicating the solicitation message's transmission time and assigns a starting time and size for a discovery slot in which the remote node is allowed to transmit a response message to the central node for registration. The system then sets a local time at the remote node according to the received time stamp. After a random delay starting from the beginning of the assigned discovery slot, the system transmits the response message to the central node during the discovery slot with a response transmission probability that is less than or equal to one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.