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Digital Twin

Digital Twin for Intelligent RAN

As wireless networks evolve toward 6G, Digital Twin technology is emerging as a key enabler for efficient, intelligent, and sustainable radio access networks. By creating a synchronized virtual replica of the physical environment, Digital Twins support data-driven network planning, real-time optimization, and energy-efficient operation. They also provide a foundation for integrated sensing and communication, enabling networks to better understand and interact with their surroundings.

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Fig. 1.  Multi-modal sensing-aided RAN twin beam forming

These capabilities are particularly critical at higher frequency bands, where communication becomes highly sensitive to blockage and environmental dynamics. Conventional beam management methods, based on exhaustive beam sweeping and reactive measurements, suffer from high latency and overhead while lacking predictive capability.

To address this, we develop an AI-driven beam tracking framework using the NVIDIA Aerial Omniverse Digital Twin. A digital replica of the Hanyang University campus in Seoul, South Korea, was constructed using an OpenStreet 3D map, and realistic mobility scenarios were generated for training and evaluation. By combining digital-twin-based environment awareness, AI-based positioning, and partial beam sweeping, the proposed framework predicts the best beam with reduced latency and signaling overhead. Experimental results show that partial beam sweeping achieves beam tracking performance comparable to full beam sweeping while using significantly fewer resources, and it also provides higher real-time data rate performance.

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Fig. 2.  RAN twin beam management

김선우 교수

한양대학교 융합전자공학부

서울특별시 성동구 왕십리로 한양대학교, 04763

교수연구실: IT/BT관 817호 T) +82-2-2220-4823

학생연구실: 퓨전테크센터 516호/1103호

​행정실: 퓨전테크센터 1103호 T) +82-2-2220-4822

Professor Sunwoo Kim

Dept. of Electronic Engineering, Hanyang University

222 Wangsimri-ro Seongdong-gu Seoul Korea, 04763

T) +82-2-2220-4822

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