Question: In UTRA TDD, what is the primary metric used to determine the performance requirement for a Dedicated Channel (DCH), and how is it applied?
Option 1: Signal-to-Noise Ratio (SNR) for all possible data rates across all UE types
Option 2: Block Error Ratio (BLER) specified individually for each supported data rate of the DCH
Option 3: Throughput measured collectively for all data rates on a Shared Channel
Option 4: Handover Success Rate averaged over various UE mobility scenarios
Explanation: The correct answer highlights that the performance of a DCH in UTRA TDD systems is primarily evaluated based on the Block Error Ratio (BLER), with specific targets set for each individual data rate that the Dedicated Channel supports, ensuring thorough assessment of its reliability and error resilience across its operational range.