URSP-Based PDU Session Reselection for Dynamic Network Slicing

The patent segments the network into multiple virtual network slices, each tailored to specific service level requirements. The URSP configuration divides route selection logic into application-specific rules, allowing independent management of different service types (e.g., eMBB, uRLLC, mMTC) without managing them as a monolithic system.

The patent implements dynamic route selection policies that can be updated and modified without disrupting ongoing network operations. The URSP configuration allows flexible adjustment of routing parameters, S-NSSAI assignments, and DNN mappings in response to changing service requirements, enabling the system to adapt dynamically while maintaining operational simplicity.

The patent transforms static PDU session associations into dynamic ones by introducing URSP rules that automatically adjust routing based on application requirements. The system dynamically selects appropriate S-NSSAI and DNN combinations, and can modify route selection descriptors in real-time without requiring complex manual reconfiguration, thus maintaining simplicity while improving performance.

The patent implements feedback mechanisms where the URSP manager monitors application performance and network conditions, then adjusts PDU session associations accordingly. This closed-loop control enables automatic optimization of resource allocation and routing decisions based on actual service requirements, improving network performance without increasing operational complexity.

The patent creates a universal URSP configuration framework that handles multiple performance dimensions (bandwidth, latency, power consumption, economic modes) through a single integrated policy mechanism. This multi-functional approach consolidates what would otherwise require separate control systems for each performance metric, reducing overall control complexity while enabling comprehensive resource optimization.

The patent optimizes dynamic reselection by changing key parameters such as S-NSSAI, DNN, and route selection descriptors based on performance dimension evaluations. The system monitors parameters like bandwidth requirements, latency constraints, and power consumption levels, then adjusts PDU session associations by modifying these parameters rather than implementing complete reconfigurations, thereby reducing signaling overhead and control complexity.

The patent implements a universal URSP configuration structure that serves multiple applications and service types through a standardized rule template. Rather than creating entirely separate policy management systems for each application, the framework uses configurable parameters within a unified structure to handle diverse service requirements, reducing policy management complexity while maintaining application-specific optimization.

The patent simplifies policy management by enabling dynamic modification of key parameters (S-NSSAI, DNN, route selection descriptors) within existing URSP rules rather than requiring complete policy rewrites. This parameter-based approach allows service quality optimization for different applications through localized parameter adjustments, reducing configuration overhead and simplifying policy management while maintaining high service quality.