Question: For HS-DSCH data throughput measurement in a TDD system, what is the basis for determining the amount of data successfully received at the User Equipment (UE)?
Option 1: By analyzing the ACK/NACK signalling field of the HS-SICH received at the Serving Station (SS) while streaming random data.
Option 2: Through direct measurement of the UE's receiver buffer overflow during the transmission.
Option 3: Based on the SS's transmitted data log, correlated with the UE's reported reception status.
Option 4: Using a third-party network analyzer to sniff and calculate the successful data transfer.
Explanation: This is correct because the throughput measurement for HS-DSCH involves monitoring the ACK/NACK signalling field of the HS-SICH at the Serving Station (SS) while random data is streamed to the UE, directly reflecting the successful reception of data at the UE.