Question: In E-UTRA and EPC conformance testing for User Equipment (UE), what is the required initial state of the UE before starting a test case, assuming no override is specified in the test case itself?
Option 1: Connected Mode, with an established dedicated bearer
Option 2: Registered, Idle Mode state, pre-registered on LTE
Option 3: Deregistered, with no prior network attachment
Option 4: Registered, Idle Mode state, pre-registered on 1xRTT (State equivalent to a predefined idle state)
Explanation: This setup reflects the specified initial condition where the UE is in a known, idle state with prior registration on a specific network type, ensuring a standardized starting point for test cases unless otherwise stated, crucial for reliable and reproducible testing outcomes.