Question: When calculating UE Relative Code Domain Power (CDP) accuracy for a UE using 16QAM modulation on uplink code channels, what additional step is required regarding the IQ origin offset power?
Option 1: The IQ origin offset power must be doubled to account for increased modulation complexity.
Option 2: The IQ origin offset power shall be removed from the Measured CDP ratio, but must also meet its own applicable requirement.
Option 3: The IQ origin offset power is ignored in calculations for 16QAM modulation due to its negligible impact.
Option 4: The IQ origin offset power requires a fixed correction factor of 2 dB to be added to the Nominal CDP ratio.
Explanation: When a UE employs 16QAM modulation on any uplink code channels, the specification mandates that the IQ origin offset power (relative carrier leakage power) be subtracted from the Measured CDP ratio. However, it also stipulates that this removed power must separately comply with its own set of requirements, ensuring accuracy in both the measured and nominal CDP ratios for reliable transmission.