| 摘要 |
<p>The present invention relates to a method and an apparatus for reordering a packet data convergence protocol (PDCP) in a wireless communication system supporting dual connectivity. According to the present invention, provided is a method for reordering PDCP service data units (SDU) considering a multi-flow by a PDCP entity of user equipment (UE) that is configured for dual connectivity to a macro eNB and a small eNB. According to the present invention, when the dual connectivity of the user equipment to the macro eNB and the small eNB is configured and multi-flow downlink reception is performed, reordering of the PDCP SDUs is performed based on a wait timer that is driven when out-of-sequence PDCP packet data units (PDU) are received by the PDCP entity of the UE, the PDCP SDUs can be delivered to an upper layer in ascending order, and transmission efficiency can be improved.</p> |
