Fusion cellular network and WLAN communication method in a network environment

The present invention relates to a method for integration of a cellular network and WLAN communication method of an access control apparatus in a network environment, comprising the steps of: receiving an uplink data packet from the user equipment; obtaining from the received uplink data packet in the the destination address of the uplink data packet; determining a home address of the destination, if the destination address belongs to the fixed network segment, the network address translation function to the uplink data packet is routed to a fixed access network; if the destination address belonging to the mobile core network segment, through the network address translation function to the uplink data packet is routed to the mobile core network. By the method of the present invention can be easily wireless core network and a wireless LAN together, and at the same time reducing the load of the core network load and a wireless cellular network. Furthermore, the present method does not affect other parts of the network, it has the advantage of good compatibility.