Synchronous transmission network node
US7688833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2002 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Aug 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2203/0025
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In order to enable nodes with a single protocol switch core to be used in a synchronous transmission network carrying both SDH and SONET traffic then one option is to convert traffic between protocols at the various network nodes. For example, if the network node has a switch core arranged for SONET, then when SDH traffic arrives at that node it can first be converted to SONET before being processed by the switch core and then converted back to SDH again if required. Known methods of converting between SONET and SDH are not suited for use at egress points of network nodes where pointer alignment processes do not occur. A new method of converting between SONET and SDH is described which overcomes these problems by reordering the position of stuff columns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.