Method and apparatus for inserting packets into a data stream
US6633564B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1999 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Sep 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/43
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This invention provides a communication network with a method and apparatus for interrupting the transmission of an existing stream of data to insert interrupting packets which may have a higher priority than the existing data stream. The interrupting packets are inserted in the data stream by making use of unused pointer values in common transmission schemes known as the Data Over Cable Service Interchange Specification (DOCSIS) or the Asynchronous Transfer Mode (ATM) adaptation layer 2 (AAL2) format of the International Telecommunications Union (ITU) recommendation I363.2. Advantageously, the scheduling of packets is significantly simplified and the packet jitter is better controlled which results in a significant improvement in transmission performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.