  In this paper, the spatial consistency of wireless massive
single-input-multiple-output channels in a cellular small cell scenario is
evaluated based on measurements taken in Berlin city. The evaluation is done by
computing the similarity of covariance matrices over the distance. As
similarity measure the correlation matrix distance is used. A classification of
the measurements tracks based on the shape of the curves into four different
categories is done. The results in this paper indicate that spatial consistency
is a highly deterministic property in the sense that it depends strongly on the
individual environment and not so much on large scale parameters. Therefore, we
conclude that spatial consistency is not sufficiently modelled by the current
3rd Generation Partnership Project feature.
