Question: What triggers an eNodeB (eNB) to initiate a Location Report Failure Indication procedure towards the Mobility Management Entity (MME) in an Evolved Universal Terrestrial Radio Access Network (E-UTRAN)?
Option 1: Successful completion of a Location Reporting Control procedure for a User Equipment (UE).
Option 2: Receipt of a Handover Command from the MME for a UE.
Option 3: Detection of a UE in an idle state, prompting location update.
Option 4: Failure of a Location Reporting Control procedure due to interaction with a handover procedure.
Explanation: The Location Report Failure Indication procedure is initiated when there's an issue (failure) with the Location Reporting Control procedure that arises from its interaction with another ongoing process - in this case, a handover procedure. This highlights managing signaling interactions between different procedures in E-UTRAN for seamless network operation and accurate location reporting for UEs.