This paper provides a comprehensive review of 3GPP standardization efforts for integrating AI/ML into mobile networks, focusing on Release 18 and upcoming Release 19. It outlines the general AI/ML framework, key use cases, and identifies significant challenges in dataset preparation, generalization evaluation, and model selection.

This paper details the Artificial Intelligence and Machine Learning (AI/ML) related technological advancements and features introduced in 3GPP Release 19 within the Service and System Aspects (SA) group. It categorizes these enhancements into supporting AI/ML applications within the 5G system ("Network for AI") and leveraging AI/ML to optimize network operations ("AI for Network").