DSL Reference Virtual Noise Configuration via Receiver-End Actual Noise
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Solution Overview
Problem
Existing DSL technologies face challenges in accurately determining and configuring reference virtual noise, leading to potential performance losses due to manually set values that may not align with actual operational conditions, resulting in either excessive costs or inadequate noise protection.
Innovation Solution
A method and system for determining and configuring DSL reference virtual noise by obtaining receiver-end-actual noise of DSL subcarriers, allowing for the accurate determination and configuration of reference virtual noise parameters, which can be adjusted based on real-time noise variations, thereby enhancing line stability and reducing maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual configuration of reference virtual noise is used, then device complexity is reduced, but measurement precision and reliability deteriorate due to inability to adapt to actual noise conditions
Solution Approach 1:
The system automatically measures actual noise conditions and configures reference virtual noise parameters without manual intervention. The DSL device performs self-diagnosis and self-adjustment by obtaining receiver-end actual noise, comparing it with predicted noise, and automatically determining optimal reference virtual noise values, thereby resolving the contradiction between simplicity and precision.
Solution Approach 2:
The system implements a feedback mechanism where the measured actual noise is continuously compared with predicted noise values, and the reference virtual noise configuration is adjusted based on this feedback. This closed-loop control ensures that the configuration adapts to real-world conditions while maintaining operational simplicity through automated adjustment.
2Ease of operation
If manual configuration of reference virtual noise is used, then ease of operation is improved, but reliability deteriorates due to mismatch with actual operational conditions
Solution Approach 1:
The system automatically adapts to actual operational conditions by measuring noise and adjusting reference virtual noise parameters without requiring manual reconfiguration. This self-adjusting capability maintains ease of operation while significantly improving reliability by ensuring the configuration always matches actual line conditions.
Solution Approach 2:
The system transitions from static manual configuration to dynamic automatic adjustment. The reference virtual noise parameters are continuously adapted based on real-time noise measurements, allowing the system to respond to changing operational conditions while maintaining simple operation through automation.
3Reliability
If high reference virtual noise is configured, then reliability improves through better noise protection, but loss of energy increases due to excessive cost and performance loss
Solution Approach 1:
The system dynamically adjusts the reference virtual noise parameter based on actual measured noise conditions rather than using fixed high values. By changing this parameter adaptively, the system achieves adequate noise protection only when necessary, thereby avoiding the performance loss and excessive cost associated with consistently high noise configurations.
Solution Approach 2:
The system applies noise protection locally and selectively based on actual noise conditions in different frequency subcarriers. Instead of uniformly applying high reference virtual noise across all subcarriers, the system adjusts the parameter locally where needed, optimizing the balance between protection and performance.
4Loss of energy
If low reference virtual noise is configured, then loss of energy is reduced, but reliability deteriorates due to inadequate noise protection
Solution Approach 1:
The system dynamically adjusts the reference virtual noise parameter based on actual measured noise conditions. When noise levels are low, the parameter is reduced to minimize cost and performance loss; when noise levels increase, the parameter is automatically increased to maintain adequate protection, thus resolving the contradiction between cost and reliability.
Solution Approach 2:
The system uses feedback from actual noise measurements to determine the appropriate reference virtual noise level. This feedback mechanism ensures that the system maintains minimum necessary protection levels while avoiding excessive configurations, achieving optimal balance between cost efficiency and line stability.
Data Source
AI summary
A method for determining reference virtual noise of Digital Subscriber Line (DSL), includes: obtaining a receiver-end-actual noise of DSL subcarriers; and determining a reference virtual noise according to the obtained receiver-end-actual noise of the DSL subcarriers. Furthermore, the invention also discloses a device for determining a reference virtual noise of DSL, and a method and a system for configuring the reference virtual noise of DSL. The invention can improve the accuracy of the reference virtual noise, thereby making the configuration of the reference virtual noise more accurate.