Question: In a dual connectivity scenario with a Master eNodeB (MeNB) and a Secondary eNodeB (SeNB), what happens to the Data Radio Bearers (DRBs) offloaded between the User Equipment (UE) and the SeNB during the UE's RRC re-establishment procedure with the MeNB?
Option 1: The DRBs offloaded to the SeNB are retained and continue to transmit data.
Option 2: The DRBs offloaded to the SeNB are released, but automatically reinstated after RRC re-establishment.
Option 3: The DRBs offloaded between the UE and the SeNB are released during the procedure.
Option 4: The MeNB takes over all DRB transmissions directly without involving the SeNB post-recovery.
Explanation: In a dual connectivity setup, when the UE undergoes an RRC re-establishment procedure with the MeNB, any Data Radio Bearers (DRBs) offloaded to the SeNB are temporarily released. This allows the control plane, managed by the MeNB, to re-synchronize and potentially reconfigure the bearer setup after recovery.