Patent ID: 8219721

Claim:
A mobile terminal, comprising an application processor, a communication processor and data transmission interfaces thereof, wherein the application processor comprises: a traffic monitor unit configured to detect data traffic of data transmission, compare the data traffic with a preset threshold to obtain a comparison result, and output the comparison result; and an interface control unit configured to control, on receipt of the comparison result, the connection or disconnection of a high-speed data line between the application processor and the communication processor, and to transmit a corresponding interface switching command to the communication processor for switching the data transmission interface of the communication processor, wherein the communication processor further comprises: an interface control unit configured to switch the communication processor of the communication processor from the low-speed interface to the high-speed interface, or vice versa, in response to the receipt of the interface switching command transmitted from the interface control unit of the application processor, and to feed back a confirm message to the interface control unit of the application processor indicating a successful interface switching, and wherein the interface control unit of the communication processor comprises: an initial setting unit configured to set a low-speed channel for signaling interaction and data transmission when the mobile terminal is powered on; a switching command receiving unit configured to receive via the low-speed interface an interface switching command transmitted from the application processor; an interface switching unit configured to switch, on receipt of the interface switching command from the switching command receiving unit, the data transmission interface of the communication processor from the low-speed interface to the high-speed interface, or vice versa; and a switching command transmission unit configured to transmit via the low-speed interface a command to the application processor indicating the successful interface switching after the interface switching unit completes the interface switching.