Channel Measurements and Modeling for Mobile Network Sensing
Bang Chul Jung
Recent developments have indicated increasing interest in utilizing existing communication infrastructure for wireless sensing, presenting new opportunities in various innovative scenarios, as highlighted by the 3GPP TR 22.837 SA1 use cases. Despite this potential, the current 3GPP RAN standards lack adequate tools to evaluate the performance of sensing solutions effectively as existing channel models are predominantly tailored toward communication rather than joint communication and sensing.
From a sensing perspective, advanced channel modeling plays a critical role in enabling ISAC systems to accurately distinguish between different types of objects. Essential features to be captured include the object’s scattering properties, the time delay of signal reception determined by the object’s position relative to the transmitter and receiver, Doppler shifts induced by the object’s motion, and scintillation effects caused by internal movement within the target.
