Integrated Sensing and Communication based Breath Monitoring using 5G Network

Integrated sensing and communication (ISAC) has been recognized as a critical technology as well as an usage scenario for the 6th generation (6G) wireless networks as reflected by the reports by impactful standardization bodies. The main idea of ISAC is to exploit communication signals to detect, monitor or image surrounding environment and support sensing, target detection or localization. As reflected by the broad consensus, communication networks will be used to support beyond communication use cases, such as target detection and indoor security surveillance and monitoring. Specifically, non-visible light based monitoring approaches are needed in dark environments or environments without enough cameras. In this paper, an ISAC based indoor breath monitoring scheme is proposed and tested with prototypes under both line-of-sight (LOS) and non line-of-sight (NLOS) environments. In the tests, 5th generation (5G) base stations are used as transceivers and the frame structures of the transmitted signals are based on 5G standards. Test results demonstrate the feasibility and accuracy of the proposed approach.