Optical transmission network nod structure, apparatus and business scheduling method

Abstract

Being as centralized dispatching unit, the disclosed dispatching unit is composed of a transparent cross unit in large capacity, and one or more dedicated cross units connected to the said transparent cross unit. Accessing service, the transparent cross unit in large capacity carries out cross configuration directly or dispatches the service to connected dedicated cross units for further processing based on configuration needed by accessed service. Being dispatched to required output port, the processed signal is sent to service process unit and WDM process unit for subsequent process. The method realizes syncretizing between original independent SDH and OTN equipment so as to be suitable to application scene of coexisting voice service and data service in larger granule. Features are: unitive bus architecture can be configured to different combinations in order to suit different needs of users; syncretizing SDH / SONET system and WDM system to implement unitive management.

Description

technical field [0001] The present invention relates to the optical transmission network in the communication technology, especially for designing a node structure, equipment and service scheduling method for the metropolitan area and core layer optical transport network, using the node structure, equipment or service scheduling method to realize different levels and different Business scheduling for application requirements. Background technique [0002] With the development of communication technology, the capacity of the transmission system is constantly increasing. For SDH / SONET (Synchronous Digital Hierarchy / Synchronous Optical Network) technology, the transmission capacity has increased from the initial 51Mbps to 155Mbps, 622Mbps, 2.5Gbps and 10Gbps, and 40Gbps also Gradually commercialized. At present, the transmission network mainly adopts SDH / SONET as the foundation, which is used to bear voice, data, video and other services. As broadband services gradually enter...

AI Technical Summary

Problems solved by technology

[0008] This structure interconnects the SDH cross-connect matrix and the OTN cross-connect matrix with converter units to realize the coupling of the two cross-connect matrices, which has the following disadvantages: due to the uncertain number of signals that need to be interacted between the SDH and OTN matrix, the converter between the two The number of units is difficult to determine; since the SDH cross-connect matrix and the OTN cross-connect matrix are two independent cross-connect units, the service processing unit needs to be interconnected with the two cross-connect units at the same time, and the converter also needs to be interconnected with the two cross-connect units at the same time. Puts a lot of pressure on the motherboard bus, complex equipment

Images