Abstract: A method and system for improving the UE WLAN measurement reporting for both LWA and LWIP, wherein both LWA and LWIP comprises a eNB, a WLAN AP/AC and a UE. In one embodiment, the method comprises notifying the eNB by the UE for its support of LWA or LWIP and WLAN reporting via LTE radio resource; instructing the UE by the eNB to perform initial WLAN measurement; sending the initial WLAN measurement report to the eNB via LTE radio resource by the UE; instructing the UE by the eNB to be associated to a WLAN AP/AC selected by the eNB; performing post-association WLAN measurement periodically to generate post-association measurement report; determining if a WLAN event is triggered; if No, performing the WLAN measurement periodically; if Yes, the UE sends the post-association WLAN measurement report to the eNB via WLAN radio resource and then performing the WLAN measurement periodically.