This report explores architectural and functional enhancements for the evolution of O-RAN Near-Real-Time RAN Intelligent Controller (Near-RT RIC) toward 6G.
It analyzes the key drivers for the evolution, including AI/ML integration, sensing/ISAC, service-based architecture, non-terrestrial networks, and communication-computing convergence.
The report also discusses several perspectives that may influence the evolution, such as split architecture of RAN, efficient AI/ML data transfer, relationship with Self-Organizing Network (SON), synergy with real-time RAN intelligence, etc.
Based on the analysis, a potential 6G Near-RT RIC design is proposed in this report, together with several architecture options. The design highlights expanded service framework, unified data management, AI/ML support for RAN and UE, enhanced RAN service exposure, support for local positioning and sensing, and inter-RIC collaboration.
This report is expected to assist the relevant 6G standardization activities in O-RAN, ensuring its seamless integration of advanced technologies, simplified and unified architecture, and native support for new services/capabilities.
