Dynamic Line Management Profile Adjustment via Event Segmentation
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Solution Overview
Problem
Dynamic Line Management (DLM) solutions rely on the number of re-trains or re-synchs as a metric for line performance, which can be misleading due to external events like thunderstorms, leading to unnecessary profile changes and user dissatisfaction.
Innovation Solution
A method that monitors data connections to differentiate between local mal-performance events and area-wide events, adjusting profiles only based on local issues, using techniques such as proportion analysis within a test period to disregard area-wide event-induced re-synchs, thereby providing a more reliable metric for Dynamic Line Management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the number of re-synchs is used as a metric for line performance, then Dynamic Line Management can be implemented, but the metric becomes misleading during area-wide events causing unnecessary profile changes
Solution Approach 1:
The patent segments the total count of re-synch events into two distinct categories: local re-synchs (affecting individual lines) and area-wide re-synchs (affecting multiple lines simultaneously). By separating these segments and analyzing them differently, the system can accurately identify which re-synchs warrant profile changes and which are due to external area-wide events, thus resolving the measurement precision issue while maintaining automation.
Solution Approach 2:
The patent introduces an intermediary analysis layer that processes raw re-synch data before it is used for profile management decisions. This intermediary layer compares re-synch patterns across multiple lines to detect area-wide events, acting as a mediator between the raw metric data and the profile management system, thereby preventing misleading data from triggering unnecessary profile changes.
2Ease of operation
If profiles are changed frequently to improve service quality, then user experience may be enhanced, but connection stability deteriorates due to unnecessary re-profiling during area-wide events
Solution Approach 1:
By segmenting re-synch events into local and area-wide categories, the system can apply different response strategies: local events trigger profile changes to improve service quality, while area-wide events are recognized as external phenomena that do not warrant profile changes, thus maintaining connection stability during such events.
Solution Approach 2:
Instead of automatically changing profiles in response to all re-synch events, the patent inverts the logic by first identifying area-wide events and then excluding them from profile change triggers. This inverted approach prevents unnecessary profile changes during area-wide events while still allowing profile adjustments for genuine local issues.
3Productivity
If aggressive profiles are applied to provide better service, then bit rate and latency improve, but line stability worsens and re-synchs increase
Solution Approach 1:
The patent implements dynamic profile management where the system can transition between aggressive and conservative profiles based on actual line conditions. By monitoring re-synch patterns and distinguishing between local and area-wide events, the system dynamically adjusts profile aggressiveness, applying aggressive profiles only when they genuinely improve service without causing instability.
Solution Approach 2:
The patent changes the parameter used for profile selection from the raw number of re-synchs to a refined metric that excludes area-wide events. This parameter change allows the system to maintain aggressive profiles for better bit rate and latency while using the corrected metric to detect when stability issues are due to external events rather than profile aggressiveness.
Data Source
AI summary
A management device for use in an access network including a plurality of data connections between end user devices and an aggregation transceiver device where the connections are aggregated for onward connection through the access network, the access network storing in association with each data connection a Dynamic Line Management, DLM, profile which specifies a set of values for a plurality of parameters associated with the respective data connection, together with a stability level specifying a desired level of stability for the data connection. The device includes means for receiving monitoring data specifying the stability of each respective data connection over a predetermined period of time; means for selecting a DLM profile to be applied to the connection in dependence on both the monitoring data and the stored stability level associated with the data connection; and means for requesting an OSS system of the access network to apply the selected profile to the data connection. The DLM profile selection means disregards any resynchronizations or errors estimated to have occurred as a result of an area wide event such as a thunderstorm. It performs this estimation by detecting a large number of retrains and or errors occurring within a predetermined short test period.