B.0 No interference
38.521-23GPPNRPart 2: Range 2 StandaloneRadio transmission and receptionRelease 17TSUser Equipment (UE) conformance specification
The downlink connection between the System Simulator and the UE is without Additive White Gaussian Noise, and has no fading or multipath effects.
Annex C (normative): Downlink Physical Channels