Question: In a CU-DU split architecture for NG-RAN, where can AI/ML Model Training and AI/ML Model Inference be respectively located according to 3GPP specifications?
Option 1: AI/ML Model Training in gNB-DU, AI/ML Model Inference in gNB-CU
Option 2: AI/ML Model Training in gNB-CU, AI/ML Model Inference in OAM
Option 3: Both AI/ML Model Training and Model Inference in gNB-DU
Option 4: Either (a) AI/ML Model Training in OAM & AI/ML Model Inference in gNB-CU, or (b) Both in gNB-CU
Explanation: According to the specified support for AI/ML in NG-RAN, particularly in a CU-DU split architecture, two scenarios are supported: one where model training occurs in OAM and inference in gNB-CU, and another where both training and inference happen within the gNB-CU itself. This highlights the flexibility in locating AI/ML processing depending on network architecture and operational needs, ensuring efficient use of resources for machine learning applications in 5G networks.