Abstract-Over-the-air (OTA) testing is seen as an essential method for evaluating 5G antenna systems, since conventional cable testing are no longer applicable. In the paper, we discussed the similarities and discrepancies of OTA testing in the multiprobe anechoic chamber (MPAC) setups for 4G user equipment (UE) antenna systems and massive multiple-input multiple-output (MIMO) base station (BS) antenna systems. Further, recent progress on OTA testing for 5G antenna systems in the MPAC setups are summarized.

-Over-the-air (OTA) test system performance evaluations is a topic to agree in the industry to be able to guarantee the comparability of the test results from different laboratories. For 5G test purposes at mmWave there are no currently metrics to be used. This paper presents both the recently proposed metrics and some performance evaluation results for UE using these metrics.

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