The present disclosure provides a method and apparatus for X2 signaling. The method comprises, in a wireless communication network supporting coordinated multiple point transmission, transmitting load information from a first base station to at least one second base station via X2 signaling, wherein the load information comprises at least one item of i) a relative narrowband beam information element or ii) a relative narrowband scheduling information element. Current X2 signaling is enhanced to support coordinated multiple point transmission with non-ideal backhaul and improve interference coordination.