Question: In a Base Station supporting more than one NB-IoT carrier for TC10, how are the carriers initially placed for transmitter tests within the declared maximum Base Station RF Bandwidth?
Option 1: A single UTRA FDD carrier is placed at the center, with NB-IoT carriers added symmetrically around it.
Option 2: Two UTRA FDD carriers are placed at the edges, with one or more NB-IoT carriers in the middle.
Option 3: One NB-IoT carrier is placed at each edge (upper and lower), with two UTRA FDD carriers (if supported) in the middle.
Option 4: All NB-IoT carriers are placed first, filling the bandwidth from one edge to the other, then UTRA FDD carriers are added if space remains.
Explanation: The initial placement for transmitter tests involves positioning an NB-IoT carrier at both the upper and lower edges of the Base Station RF Bandwidth. Then, two UTRA FDD carriers are placed in the middle if possible (or one if two cannot fit), allowing for slight shifts to align with the channel raster, efficiently testing multi-carrier operation across different technologies within the bandwidth constraints.