Method and device for transforming a series of data packets...

Details Method and device for transforming a series of data packets... Method and device for transforming a series of data packets...

H - Electricity

04

L

H04L 29/02 (2006.01) H03M 7/30 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2180345

The invention relates to a method and device for converting data packets by coding or compression (P), source data packets (11-15) being converted into transmission data packets (21-23). In order to achieve an optimal degree of filling of the transmission data packets, a data field of a transmission data packet (e g. 21) according to the invention comprises only data of one logical channel (e g. A). To this end, the converted data of the logical channels (A, B, ...) are separately buffered in preferably parallel buffers. Reconstruction information is not incorporated in the data fields of the transmission data packets but, if necessary, is transmitted in advance. The invention is applied, in particular, in X.25 networks.

Procédé et dispositif de transformation de paquets de données par codage ou compression (P), les paquets de données de source (11-15) étant transformés en paquets de données à transmettre (21-23). Afin d'assurer un taux optimal de remplissage des paquets de données à transmettre, une zone d'un paquet de données à transmettre (par exemple 21) selon l'invention ne comporte que les données d'une seule voie logique (par exemple A). A cette fin, les données transformées des voies logiques (A, B, ...) sont tamponnées séparément, de préférence dans des tampons parallèles. Les informations de reconstitution ne sont pas intégrées aux zones des paquets de données à transmettre, mais sont, le cas échéant, transmises à l'avance. Le procédé et le dispositif de l'invention trouvent application notamment dans les réseaux X.25.

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