Question: In a 3GPP-conformant test environment for User Equipment (UE), what is the required state of the UE during initial conditions for testing in a basic single cell setup with CIoT-test conditions applied?
Option 1: Registered, Idle Mode state
Option 2: Connected, Active Mode state
Option 3: Deregistered, Power Saving Mode
Option 4: Attached, Paging Receiver State
Explanation: The Registered, Idle Mode ensures the device is connected to the network but not actively engaged in a call or data session, providing a baseline for evaluating its behavior and performance under various test scenarios. This state is crucial for assessing idle mode procedures, power consumption, and readiness to receive potential paging messages, vital for IoT applications where devices may spend most of their time in idle states awaiting infrequent data transmissions.