| 主权项 |
1. A transmission device for providing a simultaneous data transmission service over two or more networks in a heterogeneous network, the transmission device comprising:
a controller configured to divide data to be transmitted into two or more partial data; and a communication unit configured to transmit the divided two or more partial data to a reception device through at least one of the two or more networks, wherein the controller is configured to insert, into first partial data of the divided two or more partial data, network access information of the reception device corresponding to a first network of the two or more networks and virtual network access information corresponding to the transmission device or the reception device, and insert, into second partial data of the divided two or more partial data, network access information of the reception device corresponding to a second network of the two or more networks and virtual network access information corresponding to the transmission device or the reception device, and the communication unit is configured to transmit the first partial data with the corresponding inserted information to the reception device through the first network, and transmit the second partial data with the corresponding inserted information to the reception device through the second network, wherein the first and second networks are different networks of heterogeneous networks, and wherein when problem occurrence of the first network is identified, the controller is configured to switch transmission of the first partial data from the first network to the second network, by replacing the network access information of the reception device corresponding to the first network previously inserted into the first partial data with the network access information of the reception device corresponding to the second network. |
