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Since the development of 4G networks, Multiple-Input Multiple-Output (MIMO)and later multiple-user MIMO became a mature part to increase the spectralefficiency of mobile communication networks. An essential part of simultaneousmultiple-user communication is the grouping of users with complementing channelproperties. With the introduction of Base Station (BS) with large amount ofantenna ports, i.e. transceiver units, the focus in spatial precoding is movedfrom uniform to heterogeneous cell coverage with changing traffic demandsthroughout the cell and 3D beamforming. In order to deal with the increasingfeedback requirement for Frequency-Division Duplex (FDD) systems, concepts foruser clustering on second order statistics are suggested in both the scientificand standardization literature. Former 3rd Generation Partnership Project(3GPP) Geometry-based Stochastic Channel Model (GSCM) channel models lack therequired spatial correlation of small-scale fading. Since the latest release of3GPP Geometry-based Stochastic Channel Model this issue is claimed to be solvedand hence our contribution is an evaluation of this spatial consistencyfeature.

Evaluation of the Spatial Consistency Feature in the 3GPP GSCM Channel Model