Patent · US Expired

Unequal error protection in a packet transmission system

US7333449B2 · kind B2 · utility

2Cited by

8References

17Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Gerd Zimmermann · Eckental, DE
Hui Li · Beijing, CN
Fabian Wenger · Handen, SE
Jan Lindskog · Mölnlycke, SE
Mathias Pauli · Koblenzer Straße, DE

Key dates

Filing date	Nov 27, 2001
Grant date	Feb 19, 2008
Priority date	—
Expiry date	Jun 3, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/08
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In a packet transmission system, especially wireless transmission system, where data is transmitted in packets at different error protection levels and where the error protection level of one packet (=the succeeding packet) may differ from the error protection level of a preceding packet without providing code termination between the said preceding and the said succeeding packet the performance may degrade in case a different error protection level is used by the preceding packet and the succeeding packet. The invention proposes in these cases to insert a supplementary packet between the preceding and the succeeding packet whereby the error protection level of the supplementary packet is higher than the lowest error protection level that is used either by the preceding or the succeeding packet.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.