Dynamic QoS Query Mechanism for 5G Network Resource Optimization
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Solution Overview
Problem
In 5G mobile networks, there is no existing API for querying available Quality of Service (QoS) information, leading to unnecessary retries by UE or AF when subscription requests are not satisfied, wasting network resources and complicating end-to-end use cases due to changes in operator policy, device type, network status, and location.
Innovation Solution
A method and apparatus for dynamically querying QoS information in 5G networks, where a network node receives a request for QoS information based on a terminal device's location and network status, determining available QoS characteristics such as 5G QoS Identifier, QCI, ARP, and NSSAI, and transmitting this information to the requesting device, allowing for proactive notifications of changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If UE or AF sends QoS subscription requests without knowing available QoS information, then the system maintains simple architecture, but unnecessary retries occur wasting network resources
Solution Approach 1:
The patent introduces a QoS information query mechanism that allows UE or AF to obtain available QoS information before sending subscription requests. This preliminary action enables informed decision-making about QoS subscription, preventing unnecessary retries and reducing network resource waste while maintaining architectural simplicity through existing network nodes performing the query function
2Productivity
If the system provides dynamic QoS information querying, then QoS management efficiency improves, but system complexity increases due to additional API and processing requirements
Solution Approach 1:
The patent implements a universal query mechanism that can be performed by multiple network nodes (SMF, PCF, or dedicated query nodes) using existing interfaces and data repositories. This multi-functional approach enables dynamic QoS information retrieval without requiring dedicated specialized infrastructure, thus improving QoS management efficiency while limiting complexity increase through reuse of existing system components
Solution Approach 2:
The patent introduces an intermediary query mechanism where network nodes act as mediators between UE/AF and the core network data repositories. This intermediary layer provides QoS information without requiring direct complex interactions between all system components, simplifying the overall system architecture while enabling efficient QoS management through centralized information retrieval
3Measurement precision
If QoS information is determined based on location and network status, then QoS allocation accuracy improves, but information processing requirements increase
Solution Approach 1:
The patent implements location-based QoS determination where QoS information is tailored to specific geographic locations and local network conditions. Network nodes query QoS information based on UE location and local network status, providing accurate localized QoS allocation without requiring centralized processing of all global network data, thus improving accuracy while managing information processing load through distributed local decision-making
Data Source
AI summary
Embodiments of the present disclosure relates to a method, and an apparatus for dynamic QoS characteristics query in mobile network. The method performed by a first network node in a communication network may comprise: receiving a request about QoS information for a terminal device. The method may further comprise: determining the QoS information for the terminal device, based at least on a location of the terminal device and/or a network status. The method may further comprise: transmitting a response including the determined QoS information. According embodiments of the present disclosure, it is possible for the UE or other server node to obtain information about currently available QoS. It will take full advantage of network resources and UE could avoid meaningless retry operations.