Dynamic QoS Provisioning for Network Nodes with Link State Monitoring
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Solution Overview
Problem
Traditional networks fail to effectively manage dynamic link states and bandwidth characteristics, which are common in non-traditional networks like dynamic mobile ad hoc heterogeneous networks, leading to challenges in providing quality of service (QoS) for critical applications.
Innovation Solution
A network node with a processing unit and memory that monitors link states and adjusts QoS provisioning dynamically based on changes, using a differentiated services architecture to manage packet travel and notify applications, ensuring QoS-aware applications can adapt to link state changes and available bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional destination-based routing is used with static link state assumptions, then network infrastructure is simple and easy to manage, but QoS provisioning fails in dynamic networks with varying link states and bandwidth characteristics
Solution Approach 1:
The patent implements dynamic QoS provisioning that continuously adapts to changing link states and bandwidth characteristics. The system monitors link state changes in real-time and dynamically adjusts QoS parameters, traffic scheduling, and resource allocation accordingly, transforming the static QoS model into a dynamic one that can respond to network conditions.
Solution Approach 2:
The patent establishes a feedback mechanism where the system monitors link state changes and QoS provisioning demands, then uses this information to dynamically adjust QoS provisioning. The notification system provides feedback to QoS-aware applications about link state changes, enabling them to adapt their behavior based on current network conditions.
2Adaptability or versatility
If QoS provisioning is made dynamic to handle varying link states, then adaptability to network conditions improves, but system complexity increases due to continuous monitoring and updates
Solution Approach 1:
The patent creates a universal QoS provisioning framework that can handle both static and dynamic network conditions through a single system architecture. The differentiated services portion and traffic scheduling mechanisms serve multiple functions: they work with traditional destination-based routing when link states are stable, and automatically switch to dynamic adaptation when link states change, eliminating the need for separate systems.
Solution Approach 2:
The system implements self-service through automatic detection and response to link state changes. The QoS provisioning mechanism autonomously monitors network conditions, determines appropriate QoS adjustments, and applies updates without requiring manual intervention or complex external control systems, thereby reducing operational complexity.
3Productivity
If traffic scheduling is updated dynamically based on link state changes, then network resource allocation efficiency improves, but processing overhead and notification requirements increase
Solution Approach 1:
The patent implements periodic monitoring of link states at strategically determined intervals rather than continuous monitoring. The system updates QoS provisioning and notifies applications at periodic intervals when link state changes are detected, reducing processing overhead while maintaining effective resource allocation. This periodic approach balances responsiveness with computational efficiency.
Data Source
AI summary
A network node for a network having dynamic link states includes a processing unit and computer-readable memory for causing the processing unit to monitor a link state of the network; perform QoS provisioning and make appropriate updates to the QoS provisioning based on changes in the link state and QoS provisioning demands of QoS-aware applications; and provide notification to the QoS-aware applications to allow those applications to dynamically adapt to the link state changes.