Question: In 3GPP-compliant Base Stations (BS), what is the primary factor determining the performance requirement of Dedicated Channels (DCH) in high-speed train conditions?
Option 1: The minimum transmit power capability of the Base Station.
Option 2: The type of antenna configuration used at the Base Station.
Option 3: The maximum number of simultaneous users supported by the Base Station.
Option 4: The maximum Block Error Rate (BLER) allowed at a specified Îor/Ioc limit.
Explanation: In high-speed train conditions, the performance of Dedicated Channels (DCH) in a Base Station (BS) is crucial for maintaining reliable communication. The key to ensuring this reliability lies in controlling errors. The maximum Block Error Rate (BLER) at a specified Îor/Ioc (signal-to-interference ratio) limit directly reflects the BS's ability to maintain signal integrity under such conditions. Thus, BLER at this limit is the primary factor determining DCH performance in high-speed scenarios, making Option 4 the correct answer. This highlights the importance of error rate management in telecom networks for mobile scenarios.