End-to-End QoS Delay Measurement Across Heterogeneous Networks
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Solution Overview
Problem
Providing Quality of Service (QoS) across multiple communication networks of different types is complex, as a network typically cannot obtain information about the operations of other networks, leading to challenges in meeting end-to-end QoS requirements.
Innovation Solution
A network element determines end-to-end QoS requirements by measuring the QoS of a second communication network and configures the first network to provide sufficient QoS based on these measurements, using techniques such as 5QI parameters and timestamp protocols to manage packet delay, loss rate, and bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a network operator provisions network resources to meet QoS requirements, then the QoS delivery is improved, but the resource cost increases
Solution Approach 1:
The patent implements feedback mechanisms where network elements measure actual QoS parameters (delay, loss rate, bandwidth) and use these measurements to dynamically adjust resource provisioning. The end-to-end QoS measurement results are fed back to network operators to optimize resource allocation, ensuring sufficient QoS delivery without excessive resource commitment.
Solution Approach 2:
The patent changes QoS parameters (delay budget, loss rate, bandwidth) from static provisioning values to dynamic measured values. By using end-to-end QoS measurements and adjusting network configuration based on actual performance parameters, the system optimizes resource usage while maintaining required QoS levels.
2Quantity of substance
If a network operator overcommits network resources, then the resource cost is reduced, but the QoS reliability deteriorates
Solution Approach 1:
The system continuously measures end-to-end QoS parameters and provides feedback to network operators. This feedback loop prevents overcommitment by alerting operators when actual QoS performance deviates from requirements, allowing them to adjust resource provisioning before service degradation occurs.
Solution Approach 2:
The patent uses measured QoS data to determine the minimum necessary resource provisioning rather than over-provisioning. By basing resource allocation on actual measured performance rather than worst-case estimates, the system avoids excessive resource commitment while maintaining adequate QoS delivery.
3Quantity of substance
If a network operator undercommits network resources, then the resource cost is reduced, but the QoS reliability deteriorates
Solution Approach 1:
The feedback mechanism monitors actual QoS delivery and compares it against requirements. When undercommitment causes QoS degradation, the system detects this through measurements and signals the need for additional resource provisioning, preventing chronic under-provisioning.
Solution Approach 2:
The system dynamically adjusts resource provisioning parameters based on measured QoS performance. When measurements indicate insufficient resources, the configuration parameters are changed to allocate more resources, ensuring adequate QoS delivery without permanent over-provisioning.
4Reliability
If a network element configures QoS for end-to-end communication across multiple networks, then the end-to-end QoS is improved, but the device complexity increases
Solution Approach 1:
The patent introduces intermediary network elements that perform QoS measurements and coordinate configuration across multiple networks. These intermediaries simplify the complexity by centralizing the measurement and configuration functions, rather than requiring each network element to independently manage end-to-end QoS across heterogeneous networks.
Solution Approach 2:
The network element performs multiple functions including QoS measurement, analysis, and configuration management in a single integrated system. This multi-functionality reduces overall system complexity compared to having separate specialized components for each function.
Data Source
AI summary
Embodiments of systems and methods for managing a delay of network segments in an end-to-end communication path may include determining an end-to-end time delay measurement of a communication path spanning a first communication network and a second communication network, and transmitting a message comprising the determined end-to-end time delay measurement of the communication path spanning the first communication network and the second communication network to a network element of the first communication network, wherein the message is configured to enable the network element of the first communication network to configure the first communication network to provide sufficient Quality of Service (QoS) to support an end-to-end QoS requirement based on the determined end-to-end time delay.