Question: In a 5G New Radio (NR) environment, during an intra-frequency handover from Cell 1 to Cell 2, what is the maximum time allowed for the User Equipment (UE) to start transmitting the Physical Random Access Channel (PRACH) to Cell 2 after the beginning of the specified time period?
Option 1: Less than 200 ms
Option 2: Less than 400 ms
Option 3: Less than 562 ms (Tinterrupt only)
Option 4: Less than 572 ms (Total handover delay including RRC procedure delay and Tinterrupt)
Explanation: The correct answer, 'Less than 572 ms', reflects the total handover delay which is the sum of the RRC procedure delay and Tinterrupt, as defined in the context of NR handover requirements. This ensures the UE initiates the handover process within a timeframe that supports efficient network resource management and minimizes service interruption, highlighting the importance of timely handovers in maintaining seamless connectivity in 5G networks.