Customer signal transmitting method in optical transport network and related equipment

Abstract

The embodiment of the invention provides a customer signal transmitting method in an optical transport network and related equipment. The embodiment of the method comprises the steps of obtaining a plurality of customer signals, and mapping the customer signals to a branch unit which is preset at a payload region of an optical channel payload unit (OPUK); respectively identifying the branch unit which correspond to each customer signal; identifying the types of the customer signals mapped in the branch unit; and transmitting an OPUK-containing optical channel data unit (ODUk) to an optical transport network (OTN). The embodiment of the invention can be used for building a transporting channel which is adapted to the speed of each customer signal, so that the use ratio of the transporting channel in the process of the transparent transporting of the comprehensive beacon radar (CBR) is improved, and the flexible adaptability of OTN equipment to an access service is enhanced.

Description

A client signal transmission method and related equipment in an optical transport network technical field The invention relates to optical communication technology, in particular to a mapping transmission method of client signals in an optical transmission network. Background technique With the development of social economy, people's demand for information has increased dramatically. The huge potential bandwidth capacity of optical fiber is about 30THz, making optical fiber communication one of the most important technologies supporting the growth of communication traffic. The optical transport network standard system formulated by the International Telecommunication Union-Telecommunications Standardization Sector (ITU-T, International Telecommunication Union-Telecommunication Standardization Sector) has laid a foundation for building a complete optical transmission basic network. In the Optical Transport Network (OTN, OpticalTransportNetwork), the technology of mapping ...

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Problems solved by technology

Compared with client signals of many rate levels, the OTN system only defines transmission channels of fixed rate levels and limited CBR mapping methods, and lacks flexible mapping methods for CBR transparent transmission of client signals of different rate levels

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