Question: For a UTRA FDD UE supporting HSDPA with MIMO dual stream transmission, what is the basis for defining the minimum performance requirements of Channel Quality Indicator (CQI) reporting?
Option 1: Based on a Type B reporting fraction of 50%, with parameters N_cqi_typeB and M_cqi set to 2.
Option 2: Assuming a fixed, randomly selected precoding matrix for single transport block transmission.
Option 3: Defined based on a Type A reporting fraction of 100%, with parameters N_cqi_typeA and M_cqi both set to 1.
Option 4: Determined by the Signal-to-Noise Ratio (SNR) performance of a single stream of transport blocks.
Explanation: The correct answer, Option 3, accurately reflects how the minimum performance requirements for CQI reporting under MIMO dual stream conditions are defined, as per the provided context. This definition ensures a standardized basis for evaluating UE performance, specifically assuming all CQI reports are of Type A (100% reporting fraction) with N_cqi_typeA and M_cqi set to 1. This setup provides a consistent benchmark for assessing the reporting accuracy of CQI in MIMO dual stream scenarios, crucial for reliable and efficient wireless communication.