The advancement of radio wave propagation theory has made channel propagation modeling in the complicated environments unprecedentedly active in recent years to meet 5G and 6G wireless communications requirements. This session focuses on the novel computational electromagnetic methods or channel propagation models for efficient prediction and analysis of multidimensional channel characterization in hotspot mobile communication scenarios, including typical indoor, urban, and terrestrial environments. Example topics include but not limit to computational electromagnetic methods, deterministic/statistical propagation models, channel measurements, etc.