QoS Negotiation via Predictive Restrictive Node Selection
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Solution Overview
Problem
In GPRS networks, intermediate nodes face challenges in determining a suitable End-to-End Quality of Service (QoS) contract when negotiating with multiple secondary nodes, as recorded QoS profiles may be outdated, leading to downgraded services and inefficient resource utilization.
Innovation Solution
An intermediate node maintains records of previous contract agreements and uses a configurable rule set to select the negotiation order with secondary nodes, dynamically generating a provisional starting QoS profile based on past QoS responses and current resource availability to optimize QoS negotiations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the SGSN uses the currently negotiated QoS contract, then negotiation time is reduced, but the QoS service is downgraded and resources are not efficiently utilized
Solution Approach 1:
The SGSN performs preliminary actions by maintaining records of previous QoS contracts and predicting the most restrictive secondary node before actual negotiation occurs. This allows the system to prepare an optimized QoS profile in advance, enabling both reduced negotiation time and maintained QoS service quality when the actual negotiation takes place.
2Reliability
If the SGSN includes the originally requested QoS profile, then the original QoS can be provided, but negotiation time increases back to original levels
Solution Approach 1:
The system dynamically adjusts the QoS profile based on current network conditions and predicted secondary node restrictions. Rather than statically using either the original or current QoS profile, the SGSN generates an optimized profile that adapts to real-time conditions, achieving both reduced negotiation time and maintained service quality through dynamic decision-making.
3Loss of time
If the recorded QoS profile is used for subsequent connections, then negotiation time is reduced, but the QoS may be outdated and downgraded
Solution Approach 1:
The SGSN implements feedback mechanisms by maintaining records of previous QoS contracts and using this historical data to inform future negotiation decisions. The system continuously learns from past negotiations and adapts its QoS profile generation based on accumulated knowledge about secondary node behaviors and current network conditions, ensuring both efficiency and adaptability.
Data Source
AI summary
Disclosed are a method and system for an intermediate node, which negotiates a Quality of Service (QoS) contract with two or more secondary nodes, to maintain a record of previous contract agreements to use as the basis for future contracts and to select the negotiation order with the secondary nodes based on a configurable rule set. The intermediate node selects the secondary node which is deemed to be (predicted as) most restrictive to begin QoS negotiations. The intermediate node dynamically creates for a specific user a new QoS profile to begin the QoS negotiations based on current system loading and historical QoS precedents.