Question: What action may be taken by the MeNB upon receiving a RRC counter check response from the UE with mismatched PDCP COUNT values during a counter check procedure initiated by the SeNB?
Option 1: The MeNB will always release the connection and trigger re-establishment.
Option 2: The MeNB ignores the discrepancy for bearers offloaded to the SeNB.
Option 3: The MeNB only reports the issue to the serving MME if it affects a specific QoS flow.
Option 4: The MeNB may release the connection or report the difference to the serving MME or O&M server for further analysis.
Explanation: Upon identifying a discrepancy in PDCP COUNT values, the MeNB can either terminate the connection to prevent potential security threats or report the anomaly for deeper analysis by the serving MME or O&M server, allowing for both immediate security mitigation and long-term network integrity enhancement.