System and method for transmitting compressed frame headers in a multiprotocal data transmission network
US6804238B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1999 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Dec 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for transmitting data frames with compressed headers in a multiprotocol data transmission network comprising at least one ingress node transmitting data to egress nodes. Each frame of data includes data bytes and a header which defines the transmission protocols. This method comprises the steps of comparing the address field of the frame to a list of address fields corresponding to the current flows of data, selecting candidate headers associated with flows having the same address, determining a compressed header based upon the position and the number of bytes that differ between the frame header and the candidate header, selecting as reference header the best candidate header based on compression ratio, and transmitting a compressed data frame wherein the data bytes are preceded by a reference label and a compressed header including a field defining the position and the number of consecutive bytes in the portion being compressed, a field including the different bytes, and a field including the portion of header which is not compressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.