Question: What is the minimum duration during which the TB success rate shall be sustained for UE supporting 256QAM in TDD FDD CA with FDD PCell?
Option 1: At least 100 frames
Option 2: At least 200 frames
Option 3: At least 300 frames
Option 4: At least 400 frames
Explanation: According to the specifications, for UE supporting 256QAM in TDD FDD CA with FDD PCell, the TB success rate shall be sustained during at least 300 frames. This ensures that the UE can maintain a stable and successful transmission over a sufficient period.