Communications system

Details Communications system Communications system

H - Electricity

04

J

H04J 3/16 (2006.01)

Patent

CA 2472980

The present invention consists of an information structure conceived for the transport of data in digital form from a transmitting element to a receiver. This structure calls for fields for transport of the data and heading information fields termed "overhead" which improve transmission reliability. This structure, termed frame, allows in particular support of digital interconnections in a element of a transport network capable of switching various traffic types such as CBRx (for example STM-N e OC-N), VC-N, STS-N or ODUk. The structure also comprises means for identification of the frame beginning, verification of the integrity and correctness of the switching, support of protection switching, and transport of quality and timing information associated with the switched entities.

L'invention concerne une structure d'informations conçue pour le transport de données sous forme numérique d'un élément émetteur à un récepteur. Cette structure nécessite des champs pour le transport de données et des champs d'informations d'en-tête appelée "de surdébit", qui permettent d'améliorer la fiabilité de transmission. Cette structure, appelée cadre, permet en particulier le support d'interconnexions numériques dans un élément d'un réseau de transport capable de commuter différents types de trafic tels que CBRx (par exemple STM-N e OC-N), VC-N, STS-N ou ODUk. Cette structure comprend également des moyens d'identification du début du cadre, de vérification de l'intégrité et de l'exactitude de la commutation, de soutien de la commutation de protection, et de transport d'informations de qualité et de synchronisation associées aux entités commutées.

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