Method and device for synchronizing dynamic synchronous...

Details Method and device for synchronizing dynamic synchronous... Method and device for synchronizing dynamic synchronous...

Category

H - Electricity

Subcategory

04

Subsubcategory

L

IPC codes

H04L 12/28 (2006.01) H04L 12/42 (2006.01) H04L 12/56 (2006.01) H04Q 11/04 (2006.01)

Type

Patent

Patent number

CA 2319485

Description

Idle messages are transmitted by an expansion node (12) into the ring topology (10) until the first idle message arrives to the expansion node (12) after having passed through the entire ring (10). Frames may then be transmitted by the expansion node (12) at every cycle time. The expansion node (12) has an expansion buffer (34) that may receive incoming frames and stores the frames until the next cycle time. The frame stored in the buffer (34) may then be transferred to a transmission side of the expansion node (12) and transmitted into the ring topology (10). If there is no frame stored in the buffer (34) at the beginning of a new cycle time, the expansion node (12) may generate a new frame and transmit the new frame into the ring topology (10).

Des messages repos sont émis par un noeud d'extension (12) dans l'architecture en anneau (10) jusqu'à ce que le premier message repos arrive au noeud d'extension (12), après avoir parcouru l'anneau (10) en entier. Des trames peuvent alors être émises par le noeud d'extension (12) à chaque temps de cycle. Le noeud d'extension (12) possède un tampon d'extension (34) qui peut recevoir et stocker les trames entrantes jusqu'au temps de cycle suivant. La trame stockée dans le tampon (34) peut être alors transférée vers un côté émission du noeud d'extension (12) et envoyée dans l'anneau (10). Si aucune trame n'est stockée dans le tampon (34) au début d'un nouveau temps de cycle, le noeud d'extension (12) peut générer une nouvelle trame et l'envoyer dans l'anneau (10).

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