Question: In a TDD (Time Division Duplexing) system, as per 3GPP specifications for User Equipment (UE), what is the maximum allowed minimum output power for radio transmission?
Option 1: -30 dBm
Option 2: -35 dBm
Option 3: -41 dBm
Option 4: -50 dBm
Explanation: According to the 3GPP specifications for User Equipment (UE) radio transmission and reception in TDD mode, the minimum output power is capped at a maximum of -41 dBm. This means that the UE's transmitter must not produce less than this power level when transmitting at its minimum. This specification ensures consistency and predictability across different UEs in network planning and operation, particularly affecting cell coverage and interference management. Exceeding this (i.e., going lower) could lead to dropped calls or poor service due to insufficient signal strength reaching the base station.