DSL Vectoring Data Rate Balance Control via Monitoring Device
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Solution Overview
Problem
In high-frequency DSL networks, crosstalk significantly affects data rate balance between multiple data lines connected to a single distribution point unit, leading to substantial differences in vectored data rates, which existing technologies struggle to automatically and effectively manage.
Innovation Solution
A method and system that allow network operators to monitor and configure data rates across multiple lines by providing an input mechanism for data rate balance controls, enabling the calculation and application of configuration parameters to achieve optimal data rate balance between downstream and upstream transmissions, using a monitoring device to interact with access nodes and adjust parameters such as gain scaling, channel conditioning, and time slot opportunities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If higher frequency ranges are used in DSL networks, then throughput for each data line is maximized, but crosstalk levels significantly increase causing data rate imbalance between multiple data lines
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting vectoring pre-compensation signals and channel matrices based on measured crosstalk levels and data rate balances. The system modifies transmission parameters such as frequency ranges, power levels, and timing adjustments to optimize the trade-off between throughput and crosstalk management across multiple data lines.
2Manufacturing precision
If vectoring pre-compensation signals are increased to compensate for crosstalk, then data rate balance improves, but channel matrices become ill-conditioned coupling the vectored data rates
Solution Approach 1:
The patent implements feedback mechanisms where the system continuously monitors data rate balances and crosstalk levels, then adjusts vectoring pre-compensation signals accordingly. This closed-loop control prevents over-compensation that would lead to ill-conditioned channel matrices, while still achieving adequate data rate balance across multiple lines.
3Manufacturing precision
If automatic data rate balancing is implemented, then data rate differences between lines are minimized, but system complexity increases requiring additional monitoring and control mechanisms
Solution Approach 1:
The patent enables the system to self-adjust by automatically monitoring data rate balances and crosstalk levels, then applying appropriate vectoring pre-compensation signals without requiring manual intervention. This self-service capability reduces the need for complex external monitoring and control systems while maintaining precise data rate balance.
Data Source
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AI summary
Embodiments relate to a method for configuring data transmission over a plurality of data lines (4) connected to a single access device (2) using vectoring technology, wherein interference introduces dependencies between the data rates that are achievable on the data lines (4), the method being executed by a monitoring device (5) and comprising: - obtaining (S1) operational data representative of data rates of the data lines (4), - outputting (S3) the data rates to an operator; - providing (S3) the operator with an input mechanism to input at least one data rate balance related control; - receiving (S4) the at least one data rate balance related control via the input mechanism; - determining (S6) configuration parameters for the access device (2) in function of the at least one data rate balance related control; and - configuring (S7) the access device (2) using the determined configuration parameters.