Question: For UE (User Equipment) transmissions in a 3GPP network, which scenario temporarily exempts the application of EVM (Error Vector Magnitude) and Peak Code Domain Error requirements?
Option 1: During handover between two different base stations
Option 2: When the mean power of the RF signal is allowed to change versus time (e.g., PRACH, DPCH in compressed mode)
Option 3: In cases of sudden interference from another cell
Option 4: When switching from idle to active state
Explanation: Temporary exemptions from EVM and Peak Code Domain Error requirements occur when the mean power of the RF signal is intentionally changed over time, such as during PRACH transmissions, DPCH in compressed mode, or similar scenarios, with an exemption period of 25 μs before and after the scheduled power change.