Investigation on Simplified Test Environment of OTA In-Band Blocking for 5G Millimeter-Wave Radio Base Stations

Over-the-air testing enables realistic verification of radio base stations with antenna panels. To conform with the requirements, most over-the-air measurements for uplink of 5G radio base stations are performed in fully anechoic chambers. In this work, the comparison between using the fully anechoic chamber and the reverberation chamber for in-band blocking testing is conducted on a 5G millimeter-wave radio unit. The use of the reverberation chamber can reduce the time and cost of the tests. Good agreement can be observed between the results obtained from the anechoic chamber and the reverberation chamber for the in-band blocking testing.