Question: In Base Station (BS) conformance testing for TDD, what is the maximum allowed Error Vector Magnitude (EVM) for each carrier, as per the specified test requirement?
Option 1: 8.0% - to ensure stringent signal quality
Option 2: 10.0% - a balance between quality and feasibility
Option 3: 12.5% - the defined threshold for EVM in this context
Option 4: 15.0% - allowing for more flexibility in network setup
Explanation: The correct answer, 12.5%, is specified as the maximum allowed Error Vector Magnitude (EVM) for each carrier in the context of Base Station conformance testing for TDD. This value represents a threshold beyond which the signal quality might be compromised. Understanding this threshold is crucial for ensuring that base stations meet the required standards for signal integrity, directly impacting the overall performance and user experience of the wireless communication network.