Route Selection Policy Rule Service Differentiator Granularity
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Solution Overview
Problem
Current route selection policy rules in 5G systems lack the granularity to differentiate between various service types of traffic, leading to inefficient routing decisions based on application descriptors alone, which cannot identify traffic with different characteristics from a single application.
Innovation Solution
Incorporating a service differentiator into the traffic descriptor of the route selection policy rule, allowing for the identification of specific service types, enabling distinct routing policies for different service types within an application, and allowing the service differentiator to be either part of or separate from the application descriptor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only application descriptors are used in traffic descriptor, then the route selection policy rule structure is simple, but the granularity of traffic differentiation is insufficient
Solution Approach 1:
The patent segments the traffic descriptor into multiple independent components: application descriptor, service differentiator, and IP descriptor. This segmentation allows each component to serve a specific function - the application descriptor identifies the application, the service differentiator identifies the service type within the application, and the IP descriptor provides routing information. By dividing the traffic descriptor into these granular segments, the system achieves fine-grained traffic differentiation without creating an overly complex overall structure.
2Measurement precision
If service differentiator is added to traffic descriptor, then the routing decision precision is improved, but the traffic descriptor complexity increases
Solution Approach 1:
The patent applies the local quality principle by making the service differentiator an optional component within the traffic descriptor structure. Not all traffic descriptors require a service differentiator - only those cases where fine-grained service differentiation is needed. This allows the system to enhance routing precision for specific traffic types while maintaining simplicity for other traffic types, avoiding unnecessary complexity in the overall descriptor structure.
3Adaptability or versatility
If service differentiator is made separate from application descriptor, then the flexibility of policy configuration is improved, but the processing complexity increases
Solution Approach 1:
The patent implements universality by designing the service differentiator as a standalone component that can be independently configured and applied across multiple applications and services. The service differentiator structure is universal and can identify different service types (e.g., voice, video, data) regardless of which application generates the traffic. This universal design provides flexibility in policy configuration while the standardized structure actually reduces processing complexity compared to application-specific differentiation mechanisms.
Data Source
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AI summary
Disclosed are a route selection policy acquisition method and apparatus, a route selection policy rule execution method and apparatus, and a device and a computer-readable storage medium, belonging to the field of communications. The acquisition method comprises: receiving an application function request from an application function network element; generating a route selection policy rule for a terminal, wherein the route selection policy rule comprises a service specificator, and the service specificator is used for identifying a service type of traffic in an application program; sending an application function response to the application function network element; and providing the route selection policy rule to the terminal, wherein the route selection policy rule is executed when the terminal has traffic matching the service specificator.