Question: What is the primary reason for a CRNC (Controlling RNC) to use a specific encoding variant for the IB_SG_DATA IE when sending a SYSTEM INFORMATION UPDATE REQUEST message to a Node B over the Iub interface?
Option 1: To optimize data transmission speed on the Uu interface.
Option 2: To prevent incorrect transmission of System Information on the Uu interface.
Option 3: To ensure compatibility with older Node B hardware.
Option 4: To reduce signaling overhead on the Iub interface.
Explanation: The correct answer highlights the importance of maintaining System Information integrity transmitted to User Equipment via the Uu interface. Using a supported encoding variant for IB_SG_DATA IE ensures correct interpretation and dissemination, preventing potential errors or misconfigurations at the UE end.