Question: In TC5a generation for Multi-Standard Radio (MSR) Base Station conformance testing, where are the GSM and UTRA FDD carriers typically positioned within the declared maximum Base Station RF Bandwidth?
Option 1: GSM carrier at the upper edge and UTRA FDD carrier at the lower edge, with possible UTRA FDD carrier shift up to 100 kHz for channel raster alignment.
Option 2: GSM carrier at the lower edge and UTRA FDD carrier at the upper edge, with possible UTRA FDD carrier shift up to 100 kHz for channel raster alignment.
Option 3: Both GSM and UTRA FDD carriers are centered within the Base Station RF Bandwidth, without any frequency shifts.
Option 4: The positions of GSM and UTRA FDD carriers are interchangeable at either edge of the Base Station RF Bandwidth.
Explanation: According to the TC5a generation method, for efficient utilization of the spectrum and to test conformance under specified conditions, the GSM carrier is placed at the lower edge of the declared maximum Base Station RF Bandwidth, while the UTRA FDD carrier is positioned at the upper edge. The UTRA FDD carrier may be shifted up to 100 kHz towards higher frequencies to ensure alignment with the channel raster, optimizing spectrum use and testing under realistic deployment scenarios.