Question: What is a prerequisite for a User Equipment (UE) to support ce-MultiTB-HARQ-AckBundling-r16 for multiple TB scheduling with HARQ bundling in E-UTRA?
Option 1: The UE must support only pusch-MultiTB-CE-ModeA-r16.
Option 2: The UE must operate exclusively in TDD mode.
Option 3: The UE must also support at least one of: pusch-MultiTB-CE-ModeA-r16, pdsch-MultiTB-CE-ModeA-r16, pusch-MultiTB-CE-ModeB-r16, or pdsch-MultiTB-CE-ModeB-r16.
Option 4: The UE needs to have a specific CA (Carrier Aggregation) configuration.
Explanation: To ensure compatibility and efficient operation with multiple TB scheduling and HARQ bundling as specified in E-UTRA's physical layer procedures, a UE must support at least one of the mentioned CE (Coverage Enhancement) modes for either uplink (pusch) or downlink (pdsch) in Mode A or B. This prerequisite ensures the UE can effectively utilize the ce-MultiTB-HARQ-AckBundling-r16 feature, enhancing its performance in coverage-limited scenarios.