Question: In a conformance testing setup for User Equipment (UE) as per 3GPP specifications, what is a prerequisite for the UE's operation under normal RF test conditions before executing a test case?
Option 1: The UE must have an established IMS voice over PS session.
Option 2: A valid P-TMSI (Packet Temporary Mobile Subscriber Identity) for PS (Packet Switched) services must be allocated to the UE.
Option 3: The UE should be in a state of idle mode with no active bearers.
Option 4: The Test-USIM (Universal Subscriber Identity Module) insertion is sufficient without any TMSI allocation.
Explanation: For the UE to operate under normal RF test conditions, especially for tests involving packet-switched services, having a valid P-TMSI (PS) is crucial. This ensures the UE is properly identified and can engage in the necessary signaling and data transfer processes relevant to the test case, reflecting real-world operational prerequisites for PS services.