Method and controller for commissioning wavelength division multiplexing optical network during capacity expansion

摘要

The present invention discloses a method and a controller for commissioning a wave division multiplexing optical network during capacity expansion. The method includes: calculating, according to a preset rule, initial power of a wavelength service to be added and adding one or more wavelength services according to the initial power; detecting power of each newly-added wavelength service in transmission and separately calculating target power of each newly-added wavelength service according to a detected value and the initial power; calculating end-to-end performance of an existing wavelength service and end-to-end performance of each newly-added wavelength service when each newly-added wavelength service reaches its respective target power; and adjusting the power of each newly-added wavelength service when each newly-added wavelength service reaches its respective target power and the end-to-end performance of the existing wavelength service and the end-to-end performance of each newly-added wavelength service meets their respective lowest threshold requirements.

主权项

1. A method for commissioning a wavelength division multiplexing optical network during capacity expansion, comprising:
calculating, according to a preset rule, initial power at a first network element of a wavelength service to be added; adding one or more wavelength services at the first network element according to the initial power; detecting power of each newly-added wavelength service in transmission at a second network element; separately calculating target power of each newly-added wavelength service at the first network element according to a detected value at the second network element and the initial power at the first network element; calculating end-to-end performance of an existing wavelength service and end-to-end performance of each newly-added wavelength service if each newly-added wavelength service reaches its respective target power; and when each newly-added wavelength service reaches its respective target power and the end-to-end performance of the existing wavelength service and the end-to-end performance of each newly-added wavelength service meet their respective lowest threshold requirements, sequentially using each newly-added wavelength service as a newly-added wavelength services currently to be commissioned and performing the following operations: calculating the end-to-end performance of the existing wavelength service if the newly-added wavelength service currently to be commissioned reaches its target power; and adjusting power of the newly-added wavelength service currently to be commissioned to its target power when the newly-added wavelength service currently to be commissioned reaches its target power and the end-to-end performance of the existing wavelength service meets its lowest threshold requirement; when each newly-added wavelength service reaches its respective target power and the end-to-end performance of the existing wavelength service does not meet its lowest threshold requirement and the end-to-end performance of each newly-added wavelength service meets its respective lowest threshold requirement, lowering the target power of each newly-added wavelength service by a second preset value to obtain new target power of each newly-added wavelength service; and returning to an operation of calculating, if each newly-added wavelength service reaches its respective target power, the end-to-end performance of the existing wavelength service and the end-to-end performance of each newly-added wavelength service, and end the operation till the end-to-end performance of the existing wavelength service and the end-to-end performance of each newly-added wavelength service meet or fail to meet their respective lowest threshold requirements.