5G • Core Network
Nnwdaf Interface
NWDAF Service-Based Interface
RESTful service interface exposed by NWDAF providing AI/ML analytics, load predictions, and slice insights.
Technical Explanation
Nnwdaf includes Nnwdaf_AnalyticsInfo (on-demand queries for ML predictions) and Nnwdaf_EventsSubscription (continuous streaming of analytics). Consumer NFs (PCF, NSSF, AMF) consume NWDAF insights to optimize slice selection, traffic steering, and radio congestion mitigation.
Key Functions
- Streams real-time AI/ML predictive analytics to 5GC control functions
- Predicts network slice congestion, user mobility paths, and anomaly states
- Enables closed-loop automated network optimization
Specifications
3GPP TS 29.520
Interfaces
NnwdafSBI
Related 5G Concepts
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