  In this paper we evaluated the performance of a reconfigurable intelligent
surface tested with a fifth generation signal provided by a commercial fifth
generation base station. We adopted a reverberation chamber as a real life
propagating environment. Tests were conducted at the millimeter wave frequency
range. This measurement campaign was carried out under the H2020 European
project RISE-6G and a collaboration program between TIM S.p.A., Nokia and
Universit\`a Politecnica delle Marche.
