Route Selection Policy Versioning for Efficient URSP Updates
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Solution Overview
Problem
Existing communication systems waste processing resources due to unnecessary updates of route selection policies (URSP) when the network device and user equipment (UE) cannot accurately determine if the URSP is the same, leading to mismatches and inefficient resource usage.
Innovation Solution
Introduce a policy generation attribute, such as a version number or timestamp parameter, to uniquely identify the URSP, enabling the UE and network device to compare and update the policy only when necessary, optimizing the update mechanism and avoiding resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE directly updates the stored URSP with the delivered URSP without comparison, then the URSP is always synchronized with the network device, but processing resources are wasted due to unnecessary updates
Solution Approach 1:
The patent applies preliminary action by introducing a policy generation attribute (such as a version number or timestamp) that is delivered together with the URSP. The UE uses this attribute to preliminarily determine whether an update is necessary before actually performing the update operation. This prevents unnecessary updates when the URSP has not changed, thereby conserving processing resources while maintaining synchronization accuracy.
2Device complexity
If the network device delivers URSP without version information, then the delivery process is simple, but the network device cannot determine whether the UE's stored URSP is the latest version
Solution Approach 1:
The patent implements feedback by including a policy generation attribute in the delivered URSP and having the UE report this attribute back to the network device. This creates a feedback loop that allows the network device to determine whether the UE's stored URSP is the latest version without significantly increasing the complexity of the policy delivery mechanism. The attribute serves as version information that enables the network device to track URSP updates.
3Measurement precision
If the UE compares every delivered URSP with stored URSP content, then update accuracy is high, but processing overhead increases significantly
Solution Approach 1:
The patent extracts the essential version identification information (policy generation attribute) from the complete URSP content and uses only this extracted attribute for comparison purposes. This approach maintains high update determination accuracy by reliably identifying whether the URSP has changed, while significantly reducing processing overhead compared to comparing entire URSP content. The policy generation attribute serves as a compact representation of URSP version status.
Data Source
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AI summary
Disclosed in embodiments of the present application are a route selection policy update method and apparatus, a related device, and a storage medium. The method comprises: receiving a first route selection policy issued by a network device, the first route selection policy comprising a first policy generation attribute, and when it is determined, according to the first policy generation attribute, that route selection policy update needs to be performed, using the first route selection policy to update a stored second route selection policy.