Question: In UTRA/FDD for bands XII, XIII, and XIV, how is the TX-RX frequency separation defined when considering multiple downlink (DL) carriers?
Option 1: The TX-RX frequency separation is the minimum spacing between the uplink (UL) and the primary downlink (DL) carrier.
Option 2: The TX-RX frequency separation is the average spacing between the uplink (UL) and all downlink (DL) carriers.
Option 3: The TX-RX frequency separation is the maximum spacing between the uplink (UL) and any of the downlink (DL) carriers.
Option 4: The TX-RX frequency separation is not specifically defined for multiple DL carriers in these bands.
Explanation: According to UTRA/FDD specifications, for bands XII, XIII, and XIV with multiple downlink (DL) carriers, the TX-RX frequency separation is defined as the minimum spacing between the uplink (UL) and any of the downlink (DL) carriers, ensuring proper separation to minimize interference.