H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 3/16 (2006.01) H04J 3/06 (2006.01) H04Q 11/04 (2006.01)
Patent
CA 2360951
When SDH signals are transmitted, higher order signals such as STM-N (N~1) signals are transmitted. In order to avoid switching problems with the STM-1 switching networks that have been used until now, the STM-N signals are split into in N STM-1 signals according to the known virtual concatenation mode. However, these take different paths in the network which leads to different propagation times. The invention solves this problem by contacting FIFO memory devices at the receiving end with relative addressing so that the useful data stored there can be read out.
Lors de la transmission de signaux SDH, des signaux de rang supérieur, par exemple des signaux STM-N (N~1) sont transmis. Pour éviter des problèmes de commutation, avec les matrices de commutation STM-1 utilisées jusqu'à présent, les signaux STM-N sont divisés en N signaux STM-1 selon le mode connu de concaténation virtuelle. Cependant ces signaux empruntent des chemins différents dans le réseau, ce qui entraîne des temps de propagation différents. L'invention vise à résoudre ce problème. A cet effet, un contact est établi avec des dispositifs de mémorisation PEPS (premier entre premier sorti) côté réception par un adressage relatif pour extraire les données utiles mémorisées dans ces dispositifs.
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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