Network Slice Reselection for 5G Resource Congestion
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Solution Overview
Problem
5G networks experience congestion in densely populated areas due to the limitations of network slicing, which cannot efficiently handle the diverse and increasing data service demands, leading to suboptimal user experiences.
Innovation Solution
A network slice reselection method that detects congestion through messages like PDU Session Establishment Reject or Release, and reselects available slices using User Equipment Route Selection Policies (URSP) rules, ensuring continuous service availability by identifying and switching to alternative network slices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network slicing is used to divide physical network into virtual networks for diversified services, then service diversity and flexibility are improved, but network congestion still occurs in densely populated areas
Solution Approach 1:
The patent implements dynamic network slice reselection by continuously monitoring resource availability and automatically switching slices based on real-time conditions. The terminal device dynamically adjusts its network slice selection according to resource status, transforming the static network slicing approach into a dynamic adaptive system that responds to changing network conditions in densely populated areas
Solution Approach 2:
The patent changes the network slice selection parameter based on resource availability status. When resource insufficiency is detected in the current slice, the system changes to a different slice with sufficient resources. This parameter change approach allows the system to adapt to varying network conditions and avoid congestion by selecting optimal slices based on real-time resource parameters
2Ease of operation
If a terminal device uses a fixed network slice for data sessions, then session establishment is simple, but service continuity is compromised when resources are insufficient
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device monitors resource availability status of the current network slice and provides this information to the session management function. When resource insufficiency is detected, the feedback triggers automatic slice reselection, ensuring service continuity while maintaining simple operation through automated decision-making based on real-time network conditions
Data Source
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AI summary
The present disclosure provides a network slice reselection method, including: receiving (100) a message sent from a network side for a currently selected network slice, and reselecting (100) a network slice; and a reason carried by the message is insufficient resource. The present disclosure further provides a network slice reselection device, an electronic device and a computer-readable storage medium.