Method and apparatus for supporting local gateway service for dual connectivity in wireless communication system

A secondary evolved NodeB (SeNB) in dual connectivity comprising:

• a memory;
• a transceiver;
• and
• a processor coupled to the memory and the transceiver, and configured to:
• control the transceiver to receive a request message including information on a specific evolved universal mobile telecommunication system (UMTS) terrestrial radio access network (E-UTRAN) radio access bearer (E-RAB), which is served by a local gateway (L-GW), from a master evolved NodeB (MeNB) in dual connectivity which is collocated with the L-GW;
• decide to transmit data via a X2 interface instead of a S1-U interface for the specific E-RAB;
• and
• control the transceiver to transmit a response message to the MeNB.