Scalable integrated sensing and communication: technologies and experimental study

Integrated Sensing and Communication (ISAC) is widely seen as an important feature for 6G wireless communications and, recently, the 3rd Generation Partnership Project (3GPP) has initiated efforts to standardize ISAC. Among the emerging technologies related to ISAC, Radio Digital-Twin (RDT)-assisted communications stands out as a powerful and versatile tool. The effectiveness of a RDT hinges on its ability to maintain high fidelity and synchrony with the real world, a task where ISAC plays a crucial role by providing live environmental data to refine and calibrate the RDT. Despite its potential, construction and maintenance of RDTs requires extensive manual efforts, facing scalability challenges. In this talk, we present a novel approach to scalable RDT construction and maintenance, leveraging a fully automated pipeline that eliminates the need for human intervention. By using widely available maps, geographical information systems, computer vision, and wireless sensing, we have developed a method that significantly reduces the time and effort required to create and maintain RDTs. Our approach has been implemented and tested in a 5G NR mmWave system at Qualcomm's San Diego Campus, demonstrating its effectiveness in reducing device energy consumption and enhancing communication performance.