Question: What action does a target eNodeB (eNB) take if it receives a HANDOVER REQUEST with a E-RAB Level QoS Parameters IE indicating a GBR bearer but missing the GBR QoS Information IE?
Option 1: Admit the corresponding E-RAB with default QoS settings.
Option 2: Request additional information from the source eNB before making a decision.
Option 3: Not admit the corresponding E-RAB and continue with other E-RABs in the request if possible.
Option 4: Immediately send a HANDOVER FAILURE message to the UE.
Explanation: If a target eNB receives a HANDOVER REQUEST with a GBR bearer indicated but missing necessary GBR QoS Information, it shall not admit the corresponding E-RAB to ensure properly defined QoS. It may still process other correctly configured E-RABs in the request.