NWDAF Service Interface for Network Function Data Access
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Solution Overview
Problem
Current 5G communication systems face challenges in effectively providing network-related analysis services, as network functions (NFs) are limited in requesting and utilizing analysis data from the Network Data Analytics Function (NWDAF), leading to dependency on specific implementations and inefficient data processing.
Innovation Solution
A method and apparatus that enable NFs to request and utilize network-related analysis information from the NWDAF, allowing for centralized collection and analysis of data, including event subscription and analytic information request services, to enhance network management functions such as QoS and traffic control, by using a service-based interface and HTTP/JSON formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If NFs are limited in requesting and utilizing analysis data from NWDAF, then system complexity is reduced, but network management efficiency deteriorates
Solution Approach 1:
The patent segments the network management functions by separating data collection, analysis, and utilization into distinct modules. The NWDAF is divided into multiple network functions (NFs) that can independently request and utilize analysis data, allowing parallel processing and improved efficiency without overwhelming system complexity.
Solution Approach 2:
The patent introduces a service-based interface layer between NFs and NWDAF, adding a new dimension to the architecture. This interface layer standardizes communication protocols and data formats, enabling efficient data exchange while abstracting the complexity of underlying analysis mechanisms.
2Reliability
If NFs depend on specific implementations of NWDAF, then analysis accuracy is improved, but system adaptability deteriorates
Solution Approach 1:
The patent creates a universal service-based interface that enables multiple NFs to interact with NWDAF through standardized methods. This interface supports various analysis types and data formats, allowing the system to adapt to different implementation scenarios while maintaining consistent, accurate analysis results across diverse network conditions.
3Ease of operation
If centralized data collection and analysis is implemented, then network management capability is improved, but data processing complexity deteriorates
Solution Approach 1:
The patent introduces service-based interfaces as intermediary layers between NFs and the centralized NWDAF. These interfaces handle data formatting, validation, and protocol management, simplifying the interaction for network operators while the backend processing complexity is managed within the NWDAF module itself.
Data Source
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AI summary
Disclosed is a method of adding a type of network-related analysis information provided by a network data analytics function (NWDAF), including: receiving, by the NWDAF, an analytic information addition request requesting addition of new network-related analytic information, and transmitting, from the NWDAF, a response message including information about whether the new network-related analytic information has been added, in response to the analytic information addition request, wherein the network-related analytic information is obtained by analyzing information collected from at least one entity in a network and the analytic information addition request includes information about a definition of the new network-related analytic information.