Abstract: A method for controlling a discontinuous reception (DRX) in a dual connectivity mode comprises: configuring, by a first communication node, a user equipment (UE) that supports a dual connectivity to measure channel qualities of the first and the second communication nodes; configuring, by the first communication node, the UE to enter or leave the DRX on the first communication node, according to the channel qualities of the first and the second communication nodes which feedbacks from the UE; and configuring, by the first communication node, the UE to transmit/receive at least one data radio bearer (DRB) through a leg of the second communication node or transmit/receive the DRB through both of a leg of the first communication node and the leg of the second communication node, according to the channel qualities of the first and the second communication nodes.