Question: For a User Equipment (UE) in a TDD (Time Division Duplexing) system, how is the UE transmitter considered to be "on" in terms of transmitted power, according to 3GPP specifications?
Option 1: If the UE transmitted power matches the minimum output power exactly.
Option 2: If the UE transmitted power is higher than the minimum output power specified for its TDD option (e.g., 3.84 Mcps, 1.28 Mcps, or 7.68 Mcps).
Option 3: If the UE transmitted power is lower than the transmit OFF power plus a defined tolerance window.
Option 4: If the UE transmitted power cycles between on and off states within a predefined time frame.
Explanation: This answer is correct because, as per the specifications, a UE transmitter is considered "on" when its transmitted power exceeds the minimum output power requirement, which varies depending on the TDD option (3.84 Mcps, 1.28 Mcps, or 7.68 Mcps) being used. This ensures the UE meets the necessary transmission power levels for effective communication in a TDD system.