Question: Under what condition is the Downlink Power Control procedure **not** allowed to be initiated by the Serving Radio Network Controller (SRNC) for a specific UE Context in a UTRAN Iur interface?
Option 1: When the UE is in idle mode
Option 2: If the UE has only one established Radio Link
Option 3: After the SRNC initiates deletion of the last Radio Link for that UE Context in the DRNS
Option 4: During handover to a different RNC
Explanation: This is because, after the SRNC initiates deletion of the last Radio Link for a particular UE context in the DRNS, initiating a new Downlink Power Control procedure would be irrelevant and potentially disruptive since the last link is being terminated. This indicates a change in the UE's connection status, making further power control adjustments unnecessary for that context until a new radio link is established.