QoS Analysis Method Using Policy-Based Control Message Filtering

The patent applies local quality by differentiating treatment for different sessions based on their specific requirements. Policy information is configured to identify which sessions require QoS analysis and which do not, allowing the system to apply analysis resources locally where needed rather than uniformly across all sessions. This resolves the contradiction by ensuring complete QoS information is obtained for sessions that need it while avoiding resource waste on sessions that don't require analysis.

The patent implements partial action by performing QoS analysis only on a subset of sessions that meet specific criteria defined in the policy information, rather than analyzing all sessions. The system extracts control messages and obtains QoS information selectively for identified sessions, achieving sufficient QoS monitoring without the excessive resource consumption that would result from universal analysis.

The patent applies preliminary action by configuring policy information in advance that defines which sessions require QoS analysis. Before actual QoS analysis begins, the system has already identified target sessions through policy configuration, ensuring that no sessions requiring monitoring are missed. This preliminary identification resolves the contradiction by guaranteeing that selective analysis still captures all necessary QoS information while maintaining resource efficiency.

The system uses feedback mechanisms where the SP receives QoS information from the MP and can adjust policy information accordingly. This feedback loop ensures that if QoS analysis reveals new requirements or changes in session characteristics, the policy information can be updated to maintain complete QoS information coverage while preserving processing resource efficiency through continued selective analysis.