Question: In 3GPP-compliant TDD systems, what is the maximum allowed Radio Link Control (RLC) Service Data Unit (SDU) Error Rate (ER) for demodulation tests, and how is it calculated?
Option 1: ≤ 0.1, calculated as (Transmitted RLC SDU Count - Received RLC SDU Count) / Transmitted RLC SDU Count
Option 2: ≤ 1%, calculated as Received RLC SDU Count / (Transmitted RLC SDU Count + Received RLC SDU Count)
Option 3: < 0.01, calculated as (Received RLC SDU Count - Transmitted RLC SDU Count) / Received RLC SDU Count
Option 4: ≤ 0.5, calculated as Transmitted RLC SDU Count / (Transmitted RLC SDU Count + Received RLC SDU Count)
Explanation: The correct answer is Option 1 because it accurately reflects the specified maximum RLC SDU Error Rate of ≤ 0.1 for demodulation tests in 3GPP-compliant TDD systems. The calculation method provided in Option 1 correctly represents how to assess the error rate in terms of lost or erroneous SDUs relative to the total sent, crucial for evaluating wireless link data transmission reliability.