Question: During a handover using the X2 interface in E-UTRAN, how are trace control and configuration parameters propagated to the target eNB for a traced subscriber or equipment?
Option 1: The MME sends a separate TRACE CONFIGURATION message to the target eNB.
Option 2: The source eNB includes the parameters in the HANDOVER REQUEST message sent to the target eNB.
Option 3: The traced subscriber or equipment directly notifies the target eNB of the trace settings.
Option 4: The target eNB automatically retrieves the trace configuration from a centralized database.
Explanation: When a handover occurs using the X2 interface, the source eNB is responsible for propagating the necessary trace control and configuration parameters to ensure continuous tracing. This is achieved by including these parameters in the HANDOVER REQUEST message sent to the target eNB, ensuring seamless continuation of the Trace Session without relying on external entities or databases for this specific handover scenario.