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The O-RAN/AI-RAN testbed integrates commercial servers, software-defined radios, and phased-array front-ends into a flexible, programmable wireless platform. It supports a disaggregated O-RAN architecture with virtualized O-CU/O-DU, O-RU, and near-/non-RT RIC, enabling real-time data collection, AI/ML-driven control, and over-the-air experimentation. This setup allows us to prototype intelligent and secure NextG radio access networks, validate ISAC waveforms, and rapidly iterate new algorithms from simulation to hardware.

A RIS- and O-RAN–assisted Integrated Sensing and Communication (ISAC) framework is presented for high-speed UAV detection and tracking in the 3.7 GHz band. The system integrates composite OFDM–FMCW waveforms, reconfigurable intelligent surfaces (RIS), and O-RAN distributed intelligence to enable scalable, low-latency, and adaptive sensing under spectrum-sharing constraints.