Question: In UTRAN Iur interface, what is the primary purpose of including the D-RNTI (Downlink Radio Network Temporary Identifier) IE in the RELOCATION COMMIT message sent from the source RNC/BSS to the target RNC/BSS?
Option 1: To authenticate the UE/MS for security purposes during relocation.
Option 2: To prioritize resource allocation for the relocating UE/MS.
Option 3: To notify neighboring RNCs/BSSs of the impending relocation.
Option 4: To identify the UE/MS context in the target system for successful relocation finalization.
Explanation: The D-RNTI IE is included in the RELOCATION COMMIT message to identify the UE/MS context, crucial for the target RNC/BSS to correctly finalize the relocation process, ensuring appropriate resource allocation and configuration for the relocated UE/MS.