Obtaining total isotropic sensitivity from average fading sensitivity in reverberation chamber

A method of attaining Total Isotropic Sensitivity (TIS) from Average Fading Sensitivity (AFS) in a reverberation Over-the-Air (OTA) test system is provided. First, the Bit Error Rate (BER) curve is measured without reverberation chamber stirring. With the result BER curve, the AFS error rate threshold could be derived from the predefined target BER threshold. Afterwards, the base station power level is lowered down gradually to find the proper power level (i.e. TIS after correction), which reaches the AFS error rate threshold during one reverberation stirring cycle. The lab tests results indicate that the proposed method could obtain the TIS matching the one acquired in the Cellular Telephone Industries Association (CTIA) Authorized Test Lab (CATL) Anechoic Chamber (AC) OTA test system within the measurement uncertainty.