As the 3D channel model in downlink SLS follows 3GPP TR 36.873, I am wondering whether it is calibrated with 3GPP’s results, such as path-loss for large-scale, CDF of eigen-value for small-scale.
Yes, the 3D channel model provided with the current release v1.9 Q2-2016 follows completely the 3GPP TR 36.873 and is calibrated. In the documentation folder you can find the LTEsystemDoc.pdf that provides the calibration details. Moreover, in the folder reproducibility/3D_model_calibration you can find the necessary scripts to run the corresponding simulations for calibration as well as the extracted calibration results from 3GPP R1 143469, as referenced in TR36.873.