Patent ID: 8576758

Claim:
A remote wake-up system comprising: a terminal; a WWAN module configured to receive and/or send information in a wireless manner; and a security control module configured to perform a security validation on the information received by the WWAN module when the terminal is in a sleep state, and to generate, in the case of a positive the security validation, a wake-up signal and send the wake-up signal to the terminal in order to wake it up; wherein the WWAN module comprises a wireless sub-module having a baseband chip on which the security control module resides, the terminal comprises a bus connection module, and a connection bus is provided between the bus connection module and the wireless sub-module, wherein the security control module is configured to send the generated wake-up signal to the bus connection module of the terminal via the connection bus, wherein the terminal further comprises a switch provided between the bus connection module and an embedded controller, wherein the switch is kept open, and is changed to be closed only when the bus connection module receives the wake-up signal via the connection bus, so that the bus connection module is connected to the embedded controller, and the received wake-up signal is passed to the embedded controller for waking up the terminal, and wherein the terminal further comprises a power module configured to supply the bus connection module while the terminal is in a power-off state or the sleep state, the power module having a voltage converter and a bus voltage converter, the voltage converter being configured to supply a voltage to the bus connection module when the terminal is in the power-off state or the sleep state, and the bus voltage converter being configured to supply a voltage to the bus connection module when the terminal is in a power-on state.