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Power balancing method of optical network, optical transport network element and storage medium

An equalization method and optical network technology, applied in the field of communication, can solve the problems of low power equalization efficiency and achieve the effect of improving efficiency and quickly realizing power convergence

Pending Publication Date: 2022-04-22
NANJING ZHONGXING SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under the current technology, the application of traditional power equalization technology needs to consider the mutual influence caused by optical signals during the power equalization process of upstream and downstream netwo

Method used

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  • Power balancing method of optical network, optical transport network element and storage medium
  • Power balancing method of optical network, optical transport network element and storage medium
  • Power balancing method of optical network, optical transport network element and storage medium

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0076] refer to Figure 8 , Figure 8 The connection relationship between the power equalizer and the power controller on the same service transmission path in the optical network is shown in a schematic diagram, where the network element where each power equalizer is located is ROADM (Reconfigurable Optical Add-Drop Multiplexer, Reconfigurable Optical Add-Drop Multiplexer, Reconfigurable Optical Add-Drop Multiplexer) Multiplexing equipment) network element, that is, the power equalizer is embedded in the ROADM network element, and the power controller connects each power equalizer and performs the following power equalization method, refer to Figure 9 :

[0077] Step S501, sending respectively sending power query requests to the power equalizers on the same service transmission path;

[0078] Step S502, receiving the channel information returned by each power equalizer according to the power query request;

[0079] Step S503, calculate the target power of each power equal...

example 2

[0090] refer to Figure 10 , Figure 10 The connection relationship between the power equalizer and the power controller on the same service transmission path in the optical network is shown in a schematic diagram. The network element where one power equalizer is located is a relay network element, and the network elements where the other power equalizers are located are ROADM network element.

[0091] The power controller is connected to each power equalizer, and the power equalization method implemented in the ROADM network element is the same as the power equalization method in Example 1. The difference lies in the power equalization method implemented in the relay network element. Equalizer, the two power equalizers are adjusted according to the wavelength of the channel before and after the relay, refer to Figure 11 :

[0092] Step S601, sending respectively sending power query requests to the power equalizers on the same service transmission path;

[0093] Step S602...

example 3

[0101] refer to Figure 12 , Figure 12 The connection relationship between the power equalizer and the power controller on the same service transmission path in the optical network is shown in a schematic diagram. Among them, the network elements where some power equalizers are located are OLA network elements, and the network elements where other power equalizers are located are It is a ROADM network element. Among them, the OLA network element implements the function of the power equalizer through the channel power detector and the channel power actuator. For the convenience of the following description, the channel power detector and the channel power actuator in the OLA network element are represented by the power equalizer. The power controller is connected to each power equalizer and executes the power equalization method from step S501 to step S507.

[0102] The second aspect of the embodiments of the present invention provides an optical transport network element, i...

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Abstract

Disclosed are a power equalization method for an optical network, an optical transport network element and a storage medium, the power equalization method comprising: acquiring a first target power and a first actual power of an optical signal at an upstream power equalizer, and a second target power and a second actual power of the optical signal at a downstream power equalizer; obtaining a power equalization gain adjustment amount of the downstream power equalizer according to the first target power, the first actual power, the second target power and the second actual power; and sending the power equalization gain adjustment amount to a downstream power equalizer to enable the downstream power equalizer to perform power adjustment. According to the power balancing method, the power balancing gain adjustment amount can be given to a plurality of power balancing points on the service transmission path at the same time, and compared with a traditional power balancing mode of adjusting one by one from an upstream node to a downstream node according to the trend of the service transmission path, the power balancing efficiency can be greatly improved; and power convergence is quickly realized.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a power equalization method of an optical network, a network element of an optical transport network and a storage medium. Background technique [0002] In a Dense Wavelength Division Multiplexing (DWDM) network, the optical signal carrying service information often needs to go through multi-stage amplifiers to reach the target node. During the transmission of the optical signal on the service path, in order to overcome the Due to the unbalanced characteristics of the optical signal and the impact of nonlinear transfer, it is necessary to balance the power of the optical signal in the network elements of the path to ensure the transmission quality of the DWDM network. [0003] Under the current technology, the application of traditional power equalization technology needs to consider the mutual influence caused by optical signals during the power equalization process of up...

Claims

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Application Information

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IPC IPC(8): H04J14/02H04B10/294H04Q11/00
CPCH04J14/0202H04J14/0221H04B10/294H04Q11/0062H04Q2011/0086H04J14/02H04Q11/00
Inventor 张子源赵志勇刘建国李西
Owner NANJING ZHONGXING SOFTWARE