The industry has shown a trend in which mobile network operators are rolling out their own WiFi networks to enable wireless transmit/receive units (WTRUs) to access Evolved Packet Core (EPC) Packet Switched (PS) services using a wireless local area network (WLAN). There may be technical and operational advantages for these operators to integrate WLAN access points (APs) with their base stations, especially for the deployment of small cell overlay. The co-located, or connected, base station/AP scenario may make it possible to have proprietary inter-node communication between the base station and the AP, and may open the door for additional mechanisms for WiFi offloading to provide more throughput and a better user experience.