Question: What is a prerequisite for a User Equipment (UE) to support multiple Transport Block (TB) scheduling for unicast in the downlink while operating in Coverage Enhancement Mode B?
Option 1: Support for pdsch-MultiTB-CE-ModeA-r15
Option 2: Capability for Carrier Aggregation (CA)
Option 3: Implementation of Massive MIMO (Multiple Input Multiple Output)
Option 4: Indication of support for ce-ModeB-r13
Explanation: For a UE to support multiple TB scheduling in the downlink while operating in Coverage Enhancement Mode B, it must indicate support for this specific mode, ensuring it can handle required physical layer procedures.