Frame based data transmission over synchronous digital hierarchy network
US6496519B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1998 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Aug 27, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2203/0096
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A frame based data communications network is interfaced to a synchronous digital hierarchy network via a plurality of frame based data port cards incorporated into a plurality of synchronous multiplexers. Each port card comprises a conventional frame based data port, a frame switch, a rate adapter means and a mapping means for mapping data frames into a plurality of SDH virtual containers. Frame based data is incorporated directly into a synchronous virtual container without encapsulation in an intermediate protocol. A number of topologies of a frame based data channel network are possible, overlaid on the underlying synchronous transport network, including an open loop topology, a ring mode topology, and a backhaul topology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.