Keysight: 6G ISAC needs site-specific RF digital twins

At the RCR Wireless 6G Forum, Keysight's Nelson Mayedo and Usman Virk argued that standardized statistical channel models (CDL/TDL) are insufficient for 6G with integrated sensing and communication (ISAC). They call for combining stochastic models, site-specific RF digital twins, field measurements and channel emulation in one validation pipeline.

• ISAC adds detection, range, velocity, angle and tracking metrics to comms
• Stochastic models suit benchmarking; digital twins predict one real site
• Physical and temporal consistency of echoes is critical for valid tests
• Validated twins cut field measurements to confirmation, not discovery