URSP Rule Applicability for UE Network Compatibility
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Solution Overview
Problem
User equipment (UE) performance degrades when attempting to apply network slice selection policies (URSP) across different radio access technologies (RATs) and public land mobile networks (PLMNs), leading to performance issues and increased costs due to the inability to select appropriate URSP rules based on mobility and network compatibility.
Innovation Solution
The UE receives and selectively applies URSP rules that are specifically applicable to the current RAT and PLMN, ensuring that only relevant rules are used, thereby improving performance by avoiding the use of unsuitable rules and reducing costs associated with incompatible networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE applies URSP rules across different RATs and PLMNs, then the adaptability and versatility of the UE are improved, but the UE performance and reliability degrade due to incompatibility issues
Solution Approach 1:
The patent applies local quality by making URSP rules RAT-specific and PLMN-specific. Each URSP rule is associated with particular RAT types and PLMN identifiers, ensuring that rules are only applied in their intended local contexts. This prevents performance degradation from applying incompatible rules while maintaining adaptability through targeted rule application.
Solution Approach 2:
The patent implements dynamics by enabling the UE to dynamically select and apply appropriate URSP rules based on current RAT and PLMN conditions. The UE evaluates its current network environment and selectively applies rules that match the present conditions, allowing flexible adaptation while maintaining reliability through context-aware rule selection.
2Adaptability or versatility
If the UE receives multiple URSP rules for different networks, then the adaptability is improved, but the device complexity and difficulty of rule management increase
Solution Approach 1:
The patent applies segmentation by dividing URSP rules into distinct, isolated rule sets based on RAT type and PLMN identifier. Each rule is self-contained with specific applicability conditions, allowing the UE to manage complexity by handling only relevant rule subsets rather than evaluating all rules simultaneously. This segmented approach maintains adaptability while reducing management burden.
3Area of stationary object
If the UE applies incompatible URSP rules, then coverage is improved, but energy consumption and resource usage increase due to performance issues
Solution Approach 1:
The patent applies preliminary action by pre-configuring URSP rules with explicit RAT and PLMN applicability criteria. The UE performs preliminary evaluation of its current network environment against rule conditions before applying any rules, preventing energy-wasting attempts to apply incompatible rules. This advance preparation maintains coverage while reducing unnecessary energy consumption.
Data Source
AI summary
In some implementations, a user equipment (UE) may receive, from a network node, a UE route selection policy (URSP) that includes one or more URSP rules, wherein a URSP rule, of the one or more URSP rules, indicates one or more of: a radio access technology (RAT) associated with the URSP rule, or one or more public land mobile networks (PLMNs) associated with the URSP rule. The UE may select the URSP rule. The UE may perform traffic routing based on the URSP rule.