Method and device for mapping and demapping a client signal

Details Method and device for mapping and demapping a client signal Method and device for mapping and demapping a client signal

H - Electricity

04

B

H04B 10/00 (2006.01)

Patent

CA 2746011

A method and a device for mapping and demapping a client signal are provided. The method for mapping a client signal includes: dividing a part or all of a payload area of an Optical Channel Payload Unit (OPU) or Optical channel Data Tributary Unit (ODTU) into several sub-blocks, in which the sub-blocks have a size of N bytes, and N is greater than or equal to 1; and mapping a client signal to be transported to the sub-blocks of the payload area with an N-byte granularity. In the technical solutions, when the client signal is mapped, block mapping of the client signal is performed by using a mapping granularity of a block, so that the complexity of the mapping process of the client signal can be reduced, thereby meeting requirements of multi-rate services.

L'invention concerne un procédé et un dispositif de mappage et de démappage de signal client. Le procédé de mappage de signal client consiste : à diviser une partie ou l'intégralité de la zone de charge utile de l'unité de charge utile de canal optique ou de l'unité tributaire de données de canal optique en plusieurs sous-blocs, la taille d'un sous-bloc étant de N octets, N étant supérieur ou égal à 1 (210); à utiliser N octets comme granularité et à mapper le signal client en attente d'envoi avec les sous-blocs de la zone de charge utile (220). Lors du mappage du signal client, les solutions techniques adoptées dans le mode de réalisation de l'invention utilisent le bloc comme granularité de mappage pour effectuer le mappage de blocs du signal client, ce qui réduit la complexité du processus de mappage de signal client et répond à l'exigence de service à tarifs multiples.

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