Self-adapting transmission control method for optical network based on signaling

Abstract

The invention provides a self-adaptable transmission control method in an optical network based on signals. The method can introduce an adjustable optical device into the transfer plane of the optical transmission network, extends the signal protocols, and utilizes the signal messages to collect the physical damage information and adjustable physical compensation device information of all parts in the network; according to the physical information, the newly increased performance evaluation module of the control plane evaluates the signal transmission quality, thus judging whether the signalsare needed to be optimized or not according to the evaluation results; if so, the signals are globally optimized according to the transmission quality requirement and the adjusting quantity of the adjustable optical device is calculated; furthermore, the adjusting quantity is sent to all nodes, thus achieving the self-adaptable transmission of the optical transmission network, and improving the transmission quality of the optical signal.

Description

technical field [0001] The invention relates to the technical field of optical networks, in particular to an adaptive transmission control method based on signaling in an optical network. Background technique [0002] The intelligent optical network represented by Automatically Switched Optical Networks (ASON) separates the control plane from the network management system, introduces some automatic control functions to the optical network, and realizes automatic connection management. It's no better improvement on the transport plane. At present, the intelligent optical network cannot intelligently monitor, control and adjust the transmission plane, so it cannot provide a solid foundation for the automatic disassembly and construction of the upper layer connection and multi-service transmission. [0003] At the same time, in order to increase the flexibility and scalability of the optical network, reduce the overhead and delay caused by the optical-to-optical conversion, an...

AI Technical Summary

Problems solved by technology

But for adaptive optical devices, each adaptive optical device needs to have detection, feedback, and adjustment functions, and the realization of these functions requires hardware devices with various related functional modules, which greatly increases the cost of adaptive compensation devices

At the same time, adaptive optical devices only exist in some nodes in the network, so the feedback adjustment of adaptive devices is only adjusted for a part of the links in the connection to improve the transmission quality of local links. This improvement in local transmission quality may not necessarily Can meet the transmission quality requirements of the entire connection

In addition, this kind of transmission quality optimization based on the transmission plane has not been combined with the control plane, and there is blindness in compensation

Images