Integration of RIS into O-RAN 5G Networks and Beamforming Optimization via UE Reporting

This paper explores the integration of Reconfigurable Intelligent Surfaces (RIS) into an Open Radio Access Network (O-RAN) for 5G systems, with a focus on optimizing beamforming through User Equipment (UE) reporting. The integration method is demonstrated in a field test where RIS dynamically adjusts its beamforming configuration based on real-time feedback from the UE, specifically using Reference Signal Received Power (RSRP) data. The results show significant improvements in signal strength and throughput, validating the effectiveness of RIS in enhancing network performance without requiring modifications to existing network protocols. This work highlights the potential of RIS to improve coverage and capacity in 5G environments.