Question: What conditions must be met for a Mobile Equipment (ME) to optionally deactivate the UICC after entering Power Saving Mode (PSM), when the UICC does not support the UICC suspension mechanism?
Option 1: The ME must have an active mobile originating session, and the USIM PIN is enabled.
Option 2: The ME must be expecting frequent mobile terminating services, and the USIM PIN is disabled.
Option 3: The ME must not have any currently open BIP sessions or proactive UICC sessions, and the PIN of the USIM is disabled.
Option 4: The ME must have already resumed from a previous PSM, and the USIM PIN is enabled.
Explanation: For an ME to optionally deactivate the UICC after entering PSM (when UICC suspension is not supported), two key conditions must be satisfied: No active sessions (no open BIP or proactive UICC sessions) and the USIM PIN must be disabled, aligning with power-saving strategies that prioritize minimizing interactions.