Question: For a Base Station (BS) supporting Frequency Division Duplexing (FDD) UltraLink (UL) carrier aggregation with multiple Component Carriers (CCs) of equal largest aggregated bandwidth, which FDD CC combination is used for enhanced performance requirement type A testing of PUSCH?
Option 1: The FDD CC combination with the smallest number of component carriers
Option 2: Any of the FDD CC combinations with the largest aggregated bandwidth, selected randomly
Option 3: The FDD CC combination with the largest number of component carriers
Option 4: The FDD CC combination with the lowest individual CC bandwidth
Explanation: According to specifications for testing enhanced performance requirement type A of PUSCH, when a BS supports FDD UL carrier aggregation and there are multiple FDD CC combinations with the largest aggregated bandwidth, the test utilizes the FDD CC combination that has the largest number of component carriers. This ensures comprehensive evaluation of the BS's capability to handle multiple simultaneous transmissions efficiently under the enhanced performance requirements.