Question: What is the primary objective of the UE Radio Capability ID Mapping procedure in E-UTRAN, as related to interactions between eNB and MME?
Option 1: To establish UE-associated signaling for initial attach procedures.
Option 2: To enable the eNB to request UE Radio Capability information from the MME based on a specific UE Radio Capability ID using non UE-associated signalling.
Option 3: To manage the allocation of UE Radio Capability IDs across different eNBs in a network.
Option 4: To facilitate the handover of a UE between two eNBs based on their radio capabilities.
Explanation: The correct answer, Option 2, accurately reflects the purpose of the UE Radio Capability ID Mapping procedure as described. This procedure allows the eNB to request specific UE radio capability details from the MME by referencing a particular UE Radio Capability ID, utilizing non UE-associated signaling for this information exchange. This process is crucial for network planning and optimization without directly involving the UE in the signaling process. The other options misrepresent the primary objective of this procedure.