DSL Bandwidth Management via Dynamic Line Rate Monitoring
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Solution Overview
Problem
Current ADSL connection setups often establish connections at a fixed bandwidth rather than the maximum available, leading to inefficient data transmission, especially in congested networks, and previous solutions either fail to manage bandwidth effectively or impose a heavy signaling burden on the network infrastructure.
Innovation Solution
A method and apparatus that dynamically adjust the bandwidth of a DSL connection by using a management device to monitor line rate changes and provision the interface device to increase the data throughput only after a variable delay period, depending on the percentage increase in line rate, thereby reducing unnecessary re-provisioning and maintaining efficient data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the interface device is provisioned to increase the maximum data rate immediately when line rate increases, then data throughput is improved, but the signaling burden on the network increases
Solution Approach 1:
The system dynamically adjusts the maximum data rate provisioning based on actual line rate measurements. The management device continuously monitors line rate and dynamically provisions the interface device to match the actual capacity, allowing the system to adapt to changing network conditions rather than using static provisioning
Solution Approach 2:
The management device measures the line rate in advance before provisioning the interface device. By performing the line rate measurement and calculation of the new maximum data rate beforehand, the system prepares the provisioning action in advance, reducing the signaling burden during actual rate changes
2Productivity
If the connection is established at maximum available bandwidth, then data transmission efficiency is improved, but bandwidth management control becomes difficult
Solution Approach 1:
The management device receives line rate information from the transceiver device and uses this feedback to adjust the maximum data rate provisioning. The system continuously monitors actual line performance and feeds this information back to the provisioning mechanism, enabling closed-loop control of bandwidth allocation
Solution Approach 2:
The system changes the maximum data rate parameter based on measured line rate conditions. By adjusting this key parameter dynamically according to actual network conditions, the system optimizes data transmission efficiency while maintaining manageable control through structured parameter adjustment rules
3Productivity
If frequent re-provisioning is performed to match line rate changes, then data throughput is optimized, but network stability deteriorates
Solution Approach 1:
The management device periodically measures the line rate and provisions the interface device at regular intervals rather than continuously. This periodic action allows the system to optimize data throughput while maintaining network stability by avoiding excessive re-provisioning operations
Data Source
AI summary
Providing an interface device interfacing between an access network and a back-bone network comprises: providing a management device, receiving data readings from a transceiver device indicative of the current or recent line rate of a DSL connection of the access network, and providing the interface device to restrict data flowing to the DSL connection to a new maximum rate selected in accordance with the received data readings from the transceiver device indicative of the current or recent line rate of the DSL connection. When the new maximum rate is greater than the existing maximum rate for the DSL connection at which the interface device is currently provided, the interface device is provisioned (or re-provisioned) only after a delay period. The delay period depends upon the increase amount of in the new maximum rate compared to the existing maximum rate so that the greater the increase, the shorter the delay period.