In embodiments, apparatuses, methods, and storage media may be described for identifying, by a master evolved NodeB (MeNB), one or more packet data convergence protocol (PDCP) packets that were previously scheduled to be transmitted to a user equipment (UE) by a secondary eNB (SeNB). The PDCP packets that are identified by the MeNB may then be transmitted, or retransmitted, to the UE. Additionally, embodiments may include apparatuses, methods, and storage media for allowing the UE to identify one or more parameters related to a PDCP reordering process to be performed by the UE. Other embodiments may be claimed.