Patent ID: 8693378

Claim:
A wireless terminal device comprising: a first communication unit that is connected to an external device and performs communication with a network side at a first communication speed; a second communication unit that is connected to the external device and performs communication with the network side at a second communication speed that is faster than the first communication speed; and a control unit that reciprocally switches between the first communication unit and the second communication unit, wherein the control unit causes data received from the network side via the second communication unit to be delayed by a predetermined time and then sends to the external device, in a case of performing switching from the second communication unit to the first communication unit, wherein the control unit cancels a reception confirmation signal sent from the external device and resends data received from the network side to the external device, in a case of performing the switching from the second communication unit to the first communication unit, and wherein the reception confirmation signal indicates that reception of data ended normally.