Question: In a co-location scenario, what is the assumed coupling loss between an interfering transmitter (e.g., GSM, CDMA, UTRA, NR) and an E-UTRA or NB-IoT Base Station (BS) receiver for applying additional blocking requirements?
Option 1: 20 dB
Option 2: 30 dB
Option 3: 40 dB
Option 4: 50 dB
Explanation: A 30 dB coupling loss is assumed as a baseline for determining additional blocking requirements to protect E-UTRA and NB-IoT BS receivers from potential interference in co-location scenarios, reflecting typical isolation between co-located base stations of the same class.