Heterogeneous network integrating device and method thereof

A heterogeneous network integrating method, applied in a communication environment overlapped by a mobile network covering range and a wireless network covering range and using the mobile network and wireless network to transmitting downlink traffic, comprising:

• a) configuring a heterogeneous network integration terminal to enable a heterogeneous network integrating operation which enables the heterogeneous network integration terminal to automatically connect a heterogeneous network router and a wireless router;
• b) configuring the heterogeneous network integration terminal to confirm whether finishing a communication connection with the heterogeneous network router and the wireless router;
• c) configuring an element managing system to update time information after the heterogeneous network integration terminal finishes the communication connection with the wireless router;
• d) configuring the heterogeneous network integration terminal to transmit a packet which is able to make the broadband modem learn a wireless network layer 2 identification address;
• e) configuring the broadband modem to learn the wireless network layer 2 identification address of the heterogeneous network integration terminal;
• f) configuring the heterogeneous network integration terminal to send a heterogeneous network integrating activating request to the heterogeneous network router and report the wireless network layer 2 identification address of the heterogeneous network integration terminal;
• g) configuring the heterogeneous network router to confirm that a wireless network layer 2 identification address had existed in a known wireless router online terminal list information of the heterogeneous network router, configuring the heterogeneous network router to enable heterogeneous network integrating operation, and notifying the heterogeneous network integration terminal that the heterogeneous network router already enables the heterogeneous network integrating operation;
• h) configuring a heterogeneous network controller of the heterogeneous network router to transmit the downlink traffic to the heterogeneous network integration terminal by the mobile network, or diverting to the wireless router to transmit the downlink traffic by the wireless network, wherein the heterogeneous network controller of the heterogeneous network router sets a location address of downlink traffic which is diverted to the wireless router and transmitted to the heterogeneous network integration terminal by the wireless network to the wireless layer 2 identification address, and transmits to the heterogeneous network integration terminal by the wireless network through the broadband modem and wireless router;
• i) configuring the heterogeneous network controller to add the heterogeneous network integrating identification code to the downlink traffic which is transmitted to the wireless network layer 2 identification address of the heterogeneous network integration terminal;
• j) configuring the wireless network layer 2 identification address of the heterogeneous network integration terminal to confirm the received traffic which comprises the heterogeneous network integrating identification code, and transmitting the received traffic having the heterogeneous network identification code to the heterogeneous network integrator;
• and
• k) configuring the heterogeneous network integrator of the heterogeneous network integration terminal to reconstruct the downlink traffic received from the heterogeneous network router and the wireless router.