The paper focuses on studying Bluetooth Wireless Personal Area Network (WPAN) and Wireless Local Area Network (WLAN) technologies to make Bluetooth data exchange over WLAN applicable. In particular, it addresses the problem of using WLAN coverage area to exchange data between two Bluetooth devices connected to different piconets. To achieve this goal, the authors propose a new approach of Bluetooth-WLAN integration taking in account the effect of Interference. Problem arising from this integration can be solved using two approaches. Hardware solution when an electronic design for a hardware chip can be offered to support WLAN and the Bluetooth data exchange technologies between two wireless networks.