Dynamic Rate Steering for Vectored Communication Lines
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Solution Overview
Problem
Existing rate steering techniques for vectored communication lines are static, making them unsuitable for dynamic situations and requiring recalculation of vectoring coefficients for changes in configuration.
Innovation Solution
Implementing a communication system that uses two different sets of vectoring coefficients during normal and discontinuous operation intervals within a time frame, allowing for fast adjustments in data rate distribution by selecting symbol amounts and slower adjustments through updating coefficients based on traffic measurements and expectations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If static rate steering configuration is used, then implementation is simple, but adaptability to dynamic traffic conditions deteriorates
Solution Approach 1:
The patent implements dynamic rate steering by enabling the communication controller to adjust vectoring coefficients and rate steering configurations in real-time based on traffic measurements and expectations. The system transitions from static pre-calculated coefficients to dynamic coefficients that adapt to changing traffic conditions, allowing the communication lines to optimize performance under varying load conditions while maintaining implementation feasibility through structured adjustment mechanisms.
2Measurement precision
If vectoring coefficients are recalculated for configuration changes, then rate steering accuracy is improved, but processing time increases
Solution Approach 1:
The patent optimizes the balance between accuracy and processing time by selectively adjusting parameters. Instead of fully recalculating all vectoring coefficients for every configuration change, the system modifies specific parameters (such as power allocation and rate steering coefficients) based on traffic measurements and expectations. This selective parameter adjustment maintains rate steering accuracy while significantly reducing the computational processing time required for configuration changes.
3Productivity
If all communication lines are active during NOI, then communication capacity is maximized, but power consumption increases
Solution Approach 1:
The patent implements periodic action by utilizing the Discontinuous Operation Interval (DOI) within the time frame structure. During DOI, certain communication lines are deactivated or placed in low-power state, reducing overall power consumption. The system periodically switches between active (NOI) and inactive (DOI) states for different lines based on traffic requirements, achieving a balance between maintaining communication capacity during needed intervals and reducing power consumption during intervals with lower traffic demand.
Data Source
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AI summary
Example embodiments relate to a communication controller (151) for controlling communications on vectored communication lines (112); wherein the communication controller is further configured to derive first and second sets of vectoring coefficients according to respective first and second rate steering configurations for coordinating joint transmission of respective first symbols during a normal operation interval, NOI, of a time frame and second symbols during a discontinuous operation interval, DOI, of the time frame; and wherein the amount and position of the second symbols in the time frame are common across the communication lines.