Question: For LTE-based 5G terrestrial broadcast base stations operating in band 107 or 108, what is the minimum ACLR requirement as per 3GPP specifications, unless overridden by regional regulations?
Option 1: 45 dB
Option 2: 50 dB
Option 3: 40 dB
Option 4: 55 dB
Explanation: The minimum ACLR requirement of 45 dB for LTE-based 5G terrestrial broadcast base stations in bands 107 or 108 is specified to ensure minimal interference with adjacent channels, thus maintaining the integrity of signal transmission. This requirement acts as a baseline, allowing for more stringent regional regulations to supersede it if necessary.