In this paper, we introduce the LTE LWA technology. Based on 3GPP LTE Release 13, main LWA procedures are described. In addition, we implement these scenarios on a platform developed by ITRI (eNB side) and Mediatek (UE side). Peak throughput of LWA of 400 Mb/s can be achieved by aggregating a 100Mb/s LTE base station and a 300Mb/s of Wi-Fi access point. In the future, we will investigate how to use several aggregation technologies (such as CA and LWA) at the same time to gain more bandwidth.