Question: What is a prerequisite for a User Equipment (UE) to support 64QAM for non-repeated unicast PDSCH in RRC_CONNECTED when operating in Coverage Enhancement Mode A?
Option 1: The UE must operate exclusively in TDD mode.
Option 2: The UE must support a minimum of two transmitting antennas.
Option 3: The UE's bandwidth capability exceeds 20 MHz.
Option 4: The UE also indicates support for Coverage Enhancement Mode A (ce-ModeA-r13).
Explanation: According to the specifications, for a UE to support 64QAM for non-repeated unicast PDSCH in RRC_CONNECTED when operating in Coverage Enhancement Mode A (as indicated by ce-PDSCH-64QAM-r15), it is mandatory that the UE also supports Coverage Enhancement Mode A itself, denoted as ce-ModeA-r13. This ensures compatibility and optimal performance under enhanced coverage conditions.