NWDAF Dynamic Event Registration for Flexible 5G Analytics
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Solution Overview
Problem
The existing Network Data Analytics Function (NWDAF) in 5G networks is inflexible, requiring operators to push for new event definitions or rely on third-party implementations, leading to inefficiencies and increased network overhead.
Innovation Solution
A dynamic event definition system allows operators to define custom events and register them at network functions (NFs) without updating software versions, enabling efficient packet filtering and event management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dynamic event definition is implemented, then flexibility and adaptability are improved, but system complexity increases
Solution Approach 1:
The patent implements dynamic event definition by allowing operators to define custom events dynamically without requiring software version updates. The NWDAF can register and manage custom event definitions in real-time, enabling the system to adapt to changing network requirements while maintaining a manageable structure through standardized registration procedures.
Solution Approach 2:
The patent introduces an intermediary verification mechanism where the NWDAF verifies dynamic event definitions before registering them at network functions. This intermediary verification step ensures that custom event definitions meet security and validity criteria, thereby reducing the complexity burden on the overall system while maintaining flexibility.
2Adaptability or versatility
If dynamic event definition is implemented, then adaptability is improved, but network overhead increases
Solution Approach 1:
The patent applies preliminary action by having the NWDAF verify and validate dynamic event definitions before they are registered at network functions. This preliminary verification ensures that only valid and necessary event definitions are processed, preventing unnecessary network overhead from invalid or redundant event registrations.
Solution Approach 2:
The patent extracts the event definition management function from the core network functions and places it at the NWDAF. By taking out this function, the network functions only need to handle the actual data processing for validated events, reducing their overhead and allowing the NWDAF to manage the complexity of event definition registration and verification centrally.
3Ease of manufacture
If standard event definitions are used, then implementation simplicity is maintained, but flexibility is reduced
Solution Approach 1:
The patent implements universality by creating a unified event definition registration mechanism that handles both standardized and custom event definitions through the same NWDAF interface. This multi-functional approach allows operators to maintain simplicity for standard events while gaining flexibility for custom events, all managed through a single standardized registration process.
Data Source
AI summary
A system for network data analytics comprising a network data analytics function, NWDAF, and one or more network functions, NF, wherein the NWDAF is arranged to obtain a dynamic event definition, wherein the dynamic event definition defines a custom data analytics function for processing data, and register the dynamic event definition at the one or more NFs, where an NF is associated with one or more NF entrypoints for the data, wherein at least one of the NFs is arranged to receive the dynamic event definition from the NWDAF, verify the dynamic event definition in accordance with one or more pre-determined verification criteria, and, if the verification criteria are fulfilled: assign an identifier to the received dynamic event definition, transmit the identifier back to the NWDAF, and register the dynamic event definition in an event definition store of the NF, wherein the NWDAF is arranged to receive the identifier associated with the registered dynamic event definition from the at least one NF.