Method of flow-concourse and flow-distribution in multi speed rates synchronous digital network and device

Abstract

Method of flow-concourse includes receiving each branch signal, and picking up clock and data; based on byte of frame alignment of SDH / SONET frame, completing frame searching and frame tracking; processing overhead of signal, picking up all overhead signal as well as storing and interpreting it; interposing bytes is carried out for each route of signal so as to form some management units; interposing overhead signals into management units formed; forming overhead of new route, and integrated signal in high speed through interposing and multiplexing bytes. Method of flow-distribution is a reverse process of flow-concourse. Thus, multiple optical signals in low speed are converged to an optical signal in high speed, or in reverse, by using the invented method and devices. Multiple branch signals are transmitted in a wavelength transparently providing advantages of easy of networking and debugging.

Description

technical field [0001] The present invention relates to a multi-rate synchronous digital network convergence and de-convergence method and convergence and de-convergence equipment, in particular to a multi-rate synchronous digital system SDH / synchronous optical network SONET convergence and de-convergence method and convergence and de-convergence equipment in an optical communication system. Background technique [0002] In today's optical communication system, network technology is developing day by day, and various services are increasing, especially on the access side, various low-speed services are increasing, such as STM-1 / 4 (also including SONET services, such as STS-3 / 12) , if only one channel service is transmitted in one optical fiber, it will inevitably cause a waste of optical fiber bandwidth resources. For transmission systems, bandwidth resources are very precious, because the size of the bandwidth directly limits the transmission capacity of the transmission sy...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a synchronous digital network aggregation and de-aggregation method, which aggregates several low-speed wavelength service signals into one high-speed service signal, while maintaining the transparency of overhead transmission, thereby solving the problem that existing technical solutions occupy a large number of wavelength resources , The defect of low bandwidth utilization

[0010] The purpose of the present invention is to provide a converging and de-converging device, which aggregates several low-speed service signals into one high-speed service signal for transmission, while maintaining the transparency of overhead transmission, thereby solving the problem that existing technical solutions occupy too many wavelengths and utilize bandwidth Defects of low rate, high networking cost, and poor flexibility

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