Question: For a 1.28 Mcps TDD UE supporting MBMS, what metric is used to determine its receive characteristic in accordance with 3GPP specifications?
Option 1: RLC SDU (Service Data Unit) Error Rate (SDU ER)
Option 2: Block Error Rate (BLER) for Downlink Shared Channels
Option 3: Signal-to-Noise Ratio (SNR) of the Received Signal
Option 4: Throughput Measurement for Dedicated Channels
Explanation: The receive characteristic of a UE, specifically for a 1.28 Mcps TDD option supporting MBMS (Multimedia Broadcast Multicast Service), is determined by the RLC SDU Error Rate (SDU ER). This metric is crucial as it specifies the reliability of data transmission at the Radio Link Control (RLC) layer for each individual data rate, ensuring conformance to 3GPP standards for reliable broadcast and multicast services.