Method for reducing packet data delay variation in an internet protocol network
US6765905B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2002 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Dec 7, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/2458
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Network nodes (10, 15, 20, 25, 30 40) of a communication network (100) determine whether the queue position (56, 57) of a data packet (60) exceeds a threshold (55). Data packets which are placed in a queue that has a depth greater than the threshold, and therefore will experience increased delay at this node, are remarked to a higher priority for expedited handling at the next hop. The next hop network node which handles that data packet will put it in a higher priority queue (51) such that it will experience less delay at the that node. In this way, a negative correlation in node-to-node delay is achieved and overall delay variation is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.