Dynamic PDU Session Adjustment for Priority Access Under High Load
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Solution Overview
Problem
In 5G networks, high network load during events or in specific locations leads to poor user experience for users with priority services due to insufficient network resource allocation.
Innovation Solution
A dynamic adjustment method for PDU sessions based on network slice and application information, using network data analytics to optimize resource allocation by adjusting PDU sessions according to location, time, and resource status, ensuring preferential access to high-quality resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network resource allocation is performed by terminal device as basic unit, then network access flexibility is improved, but network resource utilization efficiency deteriorates during high load periods
Solution Approach 1:
The patent segments network resources by introducing network slicing technology, dividing the network into multiple virtual slices (e.g., slice A for video calls, slice B for web browsing). This allows different services to be allocated to different slices, improving resource utilization efficiency during high load periods while maintaining access flexibility for various applications.
Solution Approach 2:
The patent applies local quality by assigning different quality parameters to different network slices based on service requirements. Each slice can have customized QoS parameters, bandwidth allocations, and priority levels, enabling optimized resource utilization for specific services while maintaining overall network flexibility.
2Adaptability or versatility
If multiple applications are installed in terminal device, then service functionality is improved, but network load increases
Solution Approach 1:
The patent segments network resources into different slices that can be selectively activated based on which applications are running. When multiple applications are installed and executed, the network device can allocate resources to specific slices corresponding to active applications, managing network load while maintaining full service functionality.
Solution Approach 2:
The patent implements dynamic resource allocation where network resources are adjusted in real-time based on application status. When applications are active, corresponding network slices receive resources; when applications are inactive, resources are released or reallocated, maintaining service functionality while optimizing network load.
3Area of stationary object
If large quantity of terminal devices access network during events, then network coverage is improved, but network resource availability deteriorates
Solution Approach 1:
The patent divides network resources into multiple slices that can serve different user groups or service types simultaneously. During events with large numbers of terminal devices, different slices can be allocated to different user categories (e.g., priority users, general users), maintaining broad network coverage while ensuring sufficient resource availability for each segment.
Solution Approach 2:
The patent applies local quality by providing differentiated resource allocations to different regions or user groups within the network coverage area. During high-load events, priority services or specific user groups can receive guaranteed resources in their local network segments, maintaining both extensive coverage and adequate resource availability.
Data Source
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AI summary
This application provides embodiments of a dynamic adjustment method for a protocol data unit PDU session. The dynamic adjustment method for the session includes: A first core network device obtains a first message sent by a first server; the first core network device generates a first parameter based on the first message; a terminal device obtains a measurement result based on the first parameter, and sends the measurement result to the first core network device; the first core network device obtains a second parameter based on the measurement result; and the second core network device configures the second parameter, to dynamically adjust the PDU session based on location or time information with reference to the second parameter, so that the terminal device better uses a network resource or accesses a network.