Patent Publication Number: US-2012027061-A1

Title: Wireless modem device, wireless modem system, wireless modem device sleep/wake-up method, and terminal

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. patent application Ser. No. 13/198,545, filed on Aug. 4, 2011, which is a continuation of International Application No. PCT/CN2009/075036, filed on Nov. 19, 2009. The International Application claims priority to Chinese Patent Application No. 200910006519.X, filed on Feb. 4, 2009. The afore-mentioned patent applications are hereby incorporated by reference in their entireties. 
    
    
     TECHNICAL FIELD 
     The present invention relates to the field of communication technologies, and in particular, to a wireless modem device, a wireless modem system, a wireless modem device sleep/wake-up method, and a terminal. 
     BACKGROUND 
     A Wireless Wide Area Network (Wireless Wide Area Network, WWAN) MOdulator and DEModulator (MOdulator and DEModulator, MODEM) device of a Universal Serial Bus (Universal Serial Bus, USB) port is powered by a USB port of a Personal Computer (Personal Computer, PC). When the PC enters a Standby or Sleep state, some USB ports of the PC stay powered. During implementation of the present invention, the inventor finds that the prior art has at least the following disadvantages: 1) The wireless MODEM of the USB port cannot be turned off, which still consumes power when the PC is in a Standby or Sleep state; 2) after the USB WWAN Modem is turned off, if the PC resumes from the Sleep state, the USB WWAN Modem cannot be started automatically and can only be started through unplugging and plugging. 
     In one situation, when the PC enters the Standby or Sleep state and the USB port of the PC still stays powered, the wireless MODEM communicating through the USB cannot be turned off. In this case, the PC cannot really enter the Standby or Sleep state, and the wireless modem still consumes the electrical energy of the PC. Therefore, the Standby or Sleep function of the PC is affected, and the use life of the PC is reduced. 
     In another situation, when the PC enters the Standby or Sleep state and the USB port of the PC still stays powered, the wireless modem communicating through the USB is turned off. At this time, when the PC resumes from the Standby or Sleep state, since the USB port that stays powered does not go through a process of being powered off and then powered on, the wireless MODEM communicating through the USB cannot obtain a startup signal of the PC, so the wireless MODEM cannot be turned on again. A user has to unplug the wireless MODEM connected to the PC first and then plug the wireless modem again to turn on the wireless MODEM. Especially, for the wireless MODEM communicating through the USB of a built-in Peripheral Component Interconnect Express (PCI-e) mini card interface, the user cannot unplug and plug the wireless modem again, so the PC has to be restarted. 
     SUMMARY 
     Embodiments of the present invention are directed to a wireless modem device, a wireless modem system, a wireless modem device sleep/wake-up method, and a terminal, so the wireless modem device has sleep and self-starting functions, thereby increasing the operability of the wireless modem device. 
     In one aspect, an embodiment of the present invention provides a wireless modem device, where the wireless modem device includes: 
     a USB port, connected to a terminal through a serial bus to obtain an action signal from the terminal; and 
     a sleep/wake-up circuit unit, connected to the USB port and configured to send a notification signal to a central processing unit (CPU) of the wireless modem device according to the received action signal to enable the wireless modem device to sleep or wake up. 
     In another aspect, an embodiment of the present invention provides a terminal, where the terminal includes: 
     a USB port, connected to a wireless modem device through a serial bus to provide an action signal to the wireless modem device; and 
     a modem drive unit, connected to the USB port and an operating system of the terminal, and configured to receive a sleep signal, a standby signal or a resume signal of the terminal sent by the operating system and convert the received signal into an action signal for driving the wireless modem device to output the action signal to the wireless modem device through the USB port, where the action signal is a standby/sleep signal or a wake-up signal of the terminal or a suspend signal or a resume signal of a USB. 
     In another aspect, an embodiment of the present invention provides a wireless modem system, where the wireless modem system includes a terminal and a wireless modem device, where 
     the terminal is configured to convert a sleep signal, a standby signal or a resume signal of the terminal into an action signal for driving the wireless modem device and send the action signal to the wireless modem device; and 
     the wireless modem device is configured to enable the wireless modem device to sleep or wake up according to the received action signal, 
     where the action signal is a standby/sleep signal or a wake-up signal of the terminal or a suspend signal or a resume signal of a USB. 
     In another aspect, an embodiment of the present invention provides a wireless modem device sleep/wake-up method, where the wireless modem device sleep/wake-up method includes: 
     receiving an action signal obtained from a terminal through a serial bus; and 
     sending a notification signal to a central processing unit (CPU) of a wireless modem device according to the received action signal to enable the wireless modem device to sleep or wake up. 
     In another aspect, an embodiment of the present invention provides a wireless modem device sleep/wake-up method, where the wireless modem device sleep/wake-up method includes: 
     converting a sleep signal, a standby signal or a resume signal into an action signal for driving a wireless modem device; and 
     outputting the action signal to the wireless modem device through a serial bus to enable the wireless modem device to sleep or wake up. 
     It can be known from the preceding technical solutions that, through the wireless modem device, the wireless modem system, the wireless modem device sleep/wake-up method, and the terminal of the embodiments of the present invention, the action signal generated by the terminal is sent through the USB port, and after the action signal is received by the USB port of the wireless modem device, the action signal controls the CPU in the wireless modem device to either sleep or wake up, so that the power consumption of the wireless modem device is decreased when the wireless modem device does not need to be used, and the wireless modem device is capable of self-starting when the terminal resumes the use of the wireless modem device, thereby increasing the usability of the wireless modem device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic structural view of a wireless modem device according to a first embodiment of the present invention; 
         FIG. 2  is a schematic structural view of a wireless modem device according to a second embodiment of the present invention; 
         FIG. 3  is a schematic structural view of a terminal according to a first embodiment of the present invention; 
         FIG. 4  is a schematic structural view of a terminal according to a second embodiment of the present invention; 
         FIG. 5  is a schematic structural view of a wireless modem system according to an embodiment of the present invention; 
         FIG. 6  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a first embodiment of the present invention; 
         FIG. 7  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a second embodiment of the present invention; 
         FIG. 8  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a third embodiment of the present invention; 
         FIG. 9  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a fourth embodiment of the present invention; 
         FIG. 10  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a fifth embodiment of the present invention; and 
         FIG. 11  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a sixth embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     The technical solutions of the embodiments of the present invention are described in the following clearly with reference to the accompanying drawings. Apparently, the embodiments in the following descriptions are merely a part rather than all of the embodiments of the present invention. Persons of ordinary skill in the art can derive other embodiments based on the embodiments of the present invention without creative efforts, which all fall within the protection scope of the present invention. 
       FIG. 1  is a schematic structural view of a wireless modem device according to a first embodiment of the present invention. As shown in  FIG. 1 , the wireless modem device includes a Universal Serial Bus (USB) port  11  and a sleep/wake-up circuit unit  12 . The USB port  11  is configured to connect to a terminal through a serial bus to obtain an action signal from the terminal. The sleep/wake-up circuit unit  12  is connected to the USB port  11  and configured to send a notification signal to a Central Processing Unit (CPU)  13  of the wireless modem device according to the received action signal to enable the wireless modem device to sleep or wake up. 
     The action signal may be a standby/sleep signal or a wake-up signal of the terminal or a suspend signal or a resume signal of a USB, where the suspend signal and the resume signal are respectively obtained by converting the standby/sleep signal or the wake-up signal. That is to say, the action signal received by the USB port  11  of the wireless modem device may be the standby/sleep signal or the wake-up signal of the terminal directly sent by the terminal, the suspend signal of the USB suitable for the USB port  11  converted from the standby/sleep signal in the terminal, or the resume signal of the USB suitable for the USB port  11  converted from the wake-up signal. The action signal may be any format that can be recognized by the wireless modem device. 
     The wireless modem device according the embodiment of the present invention may also include some basic function modules for implementing a modem so that the terminal may access the internet, where data signals received by the USB port  11  are not limited to the action signal. Only addition and improvement of circuit modules corresponding to newly added or changed functions in the wireless modem device are described herein. The terminal mentioned in the embodiment of the present invention may be peripheral equipment similar to a computer and capable of wireless network connection by adopting the wireless modem device. In the following embodiments of the present invention, the peripheral equipment is represented by the terminal. 
     Through the wireless modem device provided in this embodiment, the action signal is received through the USB port, the sleep/wake-up circuit unit controls the CPU in the wireless modem device to sleep or wake up, so that the power consumption of the wireless modem device is decreased when the wireless modem device does not need to be used, and the wireless modem device is capable of self-starting when the use of the wireless modem device is resumed, thereby increasing the usability of the wireless modem device. 
       FIG. 2  is a schematic structural view of a wireless modem device according to a second embodiment of the present invention. As shown in  FIG. 2 , the wireless modem device includes a USB port  11  and a sleep/wake-up circuit unit  12  as described in the foregoing embodiment, where the sleep/wake-up circuit unit  12  may include a sleep circuit module  121 , a wake-up circuit module  122 , and a selection circuit module  123 . The selection circuit module  123  is connected to the USB port  11  and configured to recognize a standby/sleep signal or a suspend signal or a wake-up signal or a resume signal input from the USB port  11  to select the corresponding sleep circuit module  121  or wake-up circuit module  122 . The sleep circuit module  121  is selected to be triggered when the selection circuit module  123  recognizes a received signal as the standby/sleep signal or the suspend signal. The sleep circuit module  121  is configured to send a first notification signal to a CPU  13 , so that the wireless modem device enters a sleep state or a suspend state. The wake-up circuit module  122  is selected to be triggered when the selection circuit module  123  recognizes a received signal as the wake-up signal or the resume signal. The wake-up circuit module  122  is configured to send a second notification signal to the CPU  13  to wake up or resume the wireless modem device. 
     The wireless modem device may also include a power supply circuit  14 , which is connected to the USB port  11  and configured to output a power supply signal to supply power to the sleep/wake-up circuit unit  12  and the CPU  13 . 
     Through the wireless modem device provided in this embodiment, the sleep signal or the suspend signal or the wake-up signal or the resume signal is received through the USB port, the sleep circuit module processes the sleep signal or the suspend signal to control the CPU in the wireless modem device to sleep or suspend, and the wake-up circuit module processes the wake-up signal or the resume signal to control the CPU in the wireless modem device to wake up or resume, so that the power consumption of the wireless modem device is decreased when the wireless modem device does not need to be used, and the wireless modem device is capable of self-starting when the use of the wireless modem device is resumed, thereby increasing the usability of the wireless modem device. 
       FIG. 3  is a schematic structural view of a terminal according to a first embodiment of the present invention. As shown in  FIG. 3 , the terminal includes a USB port  21  and a modem drive unit  22 . The USB port  21  is connected to a wireless modem device through a serial bus to provide an action signal to the wireless modem device. The modem drive unit  22  is connected to the USB port  21  and an operating system  23  of the terminal, and configured to receive a sleep signal, a standby signal or a resume signal of the terminal sent by the operating system  23  and convert the signal into the action signal for driving the wireless modem device, where the action signal is output to the wireless modem device through the USB port  21 , and may be a standby/sleep signal or wake-up signal of the terminal or a suspend signal or a resume signal of a USB. 
     This embodiment only describes that the terminal is connected to the wireless modem device according to the embodiment of the present invention through a serial bus and controls relevant function modules of the wireless modem device. By adding one modem drive unit in the terminal, it can be implemented that when the terminal is in a sleep state or a standby state, the wireless modem device connected to the terminal also enters the sleep or suspend state, and when the terminal resumes work, the wireless modem device connected to the terminal also resumes from the sleep or suspend state to be started, so that the power consumption of the wireless modem device is decreased when the wireless modem device does not need to be used, and the wireless modem device is capable of self-starting when the use of the wireless modem device is resumed, thereby increasing the usability of the wireless modem device. 
       FIG. 4  is a schematic structural view of a terminal according to a second embodiment of the present invention. As shown in  FIG. 4 , the terminal in this embodiment includes a USB port  21  and a modem drive unit  22  as described in the foregoing embodiment, where the modem drive unit  22  may also specifically include a receiving subunit  221 , a first conversion subunit  222 , and a second conversion subunit  223 . The receiving subunit  221  is configured to receive a sleep signal, a standby signal or a resume signal of the terminal sent by an operating system  23 . The first conversion subunit  222  is configured to convert the sleep signal and the standby signal of the terminal into a standby/sleep signal of the terminal or convert the resume signal of the terminal into awake-up signal of the terminal. The second conversion subunit  223  is configured to convert the standby/sleep signal of the terminal into a suspend signal of a USB or convert the wake-up signal of the terminal into a resume signal of the USB. 
     If the USB port of the wireless modem device (that is, the USB port  11  as shown in  FIG. 2 ) may receive the standby/sleep signal or the wake-up signal of the terminal directly sent by the terminal, the standby/sleep signal of the terminal or the wake-up signal of the terminal converted by the first conversion subunit  222  is sent to the USB port  11  of the wireless modem device. If the USB port  11  of the wireless modem device is not adaptable to the standby/sleep signal or the wake-up signal of the terminal directly sent by the terminal, the second conversion subunit  223  in the terminal may also convert the standby/sleep signal of the terminal into the suspend signal of the USB suitable for the USB port  11 , or convert the wake-up signal of the terminal into the resume signal of the USB suitable for the USB port  11 , and then the converted signal is sent to the USB port  11  of the wireless modem device. 
     It can be known from the detailed description of the modem drive unit in the terminal according to this terminal that, the terminal may send an action signal of standby, sleep, or resume to the wireless modem device, so that when the terminal is in a sleep state or a standby state, the wireless modem device connected to the terminal also enters the sleep or suspend state, and when the terminal resumes work, the wireless modem device connected to the terminal also resumes from the sleep or suspend state to be started, thereby increasing the usability of the wireless modem device. 
       FIG. 5  is a schematic structural view of a wireless modem system according to an embodiment of the present invention. As shown in  FIG. 5 , the system includes a wireless modem device  51  and a terminal  52 . The wireless modem device  51  is configured to enable the wireless modem device  51  to sleep or wake up according to a received action signal. The terminal  52  is configured to convert a sleep signal, a standby signal or a resume signal of the terminal  52  into the action signal for driving the wireless modem device  51  and send the action signal to the wireless modem device  51 , where the action signal is a standby/sleep signal or a wake-up signal of the terminal  52 , or a suspend signal or a resume signal of a USB adaptable to a USB port. 
     The wireless modem device  51  may include: a first USB port  511 , connected to a second USB port  521  in the terminal  52  through a serial bus to obtain a power supply signal and the action signal from the terminal  52 ; and a sleep/wake-up circuit unit  512 , connected to the first USB port  511  and configured to receive the action signal and send a notification signal to a CPU  513  of the wireless modem device  51  to enable the wireless modem device  51  to sleep or wake up. 
     The terminal  52  may include: the second USB port  521 , connected to the first USB port  511  in the wireless modem device  51  through the serial bus to provide the power supply signal and the action signal; and a modem drive unit  522 , connected to the second USB port  521  and an operating system  523  of the terminal  52  and configured to receive the sleep signal, the standby signal or the resume signal of the terminal  52  sent by the operating system  523  of the terminal  52  and convert the signal into the action signal for driving the wireless modem device  51 . 
     The detailed compositions and functions of modules of the wireless modem device and the terminal in the wireless modem system provided in this embodiment are as described in the foregoing embodiment. Through this embodiment, the second USB port of the terminal sends the standby/sleep signal or the wake-up signal or the suspend signal or the resume signal generated by the terminal, and after the signal is received by the first USB port of the wireless modem device, the sleep/wake-up circuit unit controls the CPU in the wireless modem device to sleep or wake up, so that the power consumption of the wireless modem device is decreased when the wireless modem device does not need to be used, and the wireless modem device is capable of self-starting when the use of the wireless modem device is resumed, thereby increasing the usability of the wireless modem device. 
       FIG. 6  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a first embodiment of the present invention. As shown in  FIG. 6 , the method includes the following steps. 
     In step  601 , an action signal obtained from a terminal is received through a serial bus. 
     In step  602 , a notification signal is sent to a CPU of a wireless modem device according to the received action signal to enable the wireless modem device to sleep or wake up. 
     The action signal may be a standby/sleep signal or a wake-up signal of the terminal or a suspend signal or a resume signal of a USB, where the suspend signal and the resume signal are respectively obtained by converting the standby/sleep signal and the wake-up signal. That is to say, the action signal received by a USB port of the wireless modem device may be the standby/sleep signal or the wake-up signal of the terminal directly sent by the terminal, the suspend signal of the USB suitable for the USB port converted from the standby/sleep signal in the terminal, or the resume signal of the USB suitable for the USB port converted from the wake-up signal. The action signal may be any format that can be recognized by the wireless modem device. 
     Through the wireless modem device sleep/wake-up method provided in this embodiment, it can be implemented that, when the wireless modem device does not need to be used, the wireless modem device is enabled to sleep to decrease the power consumption of the wireless modem device, and when the wireless modem device needs to be used again, the wireless modem device is enabled to wake up from a sleep state to implement self-starting of the wireless modem device, thereby increasing the usability of the wireless modem device. 
       FIG. 7  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a second embodiment of the present invention. As shown in  FIG. 7 , the method includes the following steps. 
     In step  701 , a standby/sleep signal of a terminal or a suspend signal of a USB is received through a serial bus. 
     In step  702 , the standby/sleep signal of the terminal is converted into a first notification signal, and the first notification signal is sent to a CPU of a wireless modem device to instruct the wireless modem device to enter a sleep state; or the suspend signal of the USB is converted into a first notification signal, and the first notification signal is sent to the CPU of the wireless modem device to instruct the wireless modem device to enter a suspend state. 
     Step  703  may also be included before step  701 . In step  703 , the terminal converts a sleep signal or a standby signal into the standby/sleep signal of the terminal or the suspend signal of the USB for driving the wireless modem device and sends the converted signal. 
     The specific work process of this embodiment is described with reference to the schematic structural view of the wireless modem device in  FIG. 2  and the schematic structural view of the terminal in  FIG. 4 . When the terminal intends to enter the sleep state or a standby state, an operating system  23  inside the terminal sends a sleep signal or a standby signal to a modem drive unit  22 . A first conversion subunit  222  in the modem drive unit  22  converts the sleep signal or the standby signal into the standby/sleep signal of the terminal for driving the wireless modem device, and the standby/sleep signal of the terminal is sent to a USB port  11  of the wireless modem device through a USB port  21  of the terminal. Alternatively, a second conversion subunit  223  in the modem drive unit  22  further converts the standby/sleep signal of the terminal into the suspend signal of the USB, and the suspend signal of the USB is sent to the USB port  11  of the wireless modem device through the USB port  21  of the terminal. The USB port  11  sends the sleep signal to a selection circuit module  123  of the wireless modem device. The selection circuit module  123  recognizes the received signal as the standby/sleep signal of the terminal or the suspend signal of the USB, and then sends the standby/sleep signal of the terminal or the suspend signal to a sleep circuit module  121 . The sleep circuit module  121  sends a first notification signal to a CPU  13  of the wireless modem device according to the standby/sleep signal of the terminal or the suspend signal of the USB, so that the CPU  13  enters the sleep state or the suspend state, that is, the wireless modem device enters the sleep state or the suspend state. 
     Through the wireless modem device sleep/wake-up method provided in this embodiment, it can be implemented that, when the wireless modem device does not need to be used, the wireless modem device is enabled to sleep to decrease the power consumption of the wireless modem device, thereby increasing the usability of the wireless modem device. 
       FIG. 8  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a third embodiment of the present invention. As shown in  FIG. 8 , the method includes the following steps. 
     In step  801 , a wake-up signal of a terminal or a resume signal of a USB is received through a serial bus. 
     In step  802 , the wake-up signal of the terminal or the resume signal of the USB is converted into a second notification signal, and the second notification signal is sent to a CPU of a wireless modem device to wake up or resume the wireless modem device. 
     Step  803  may also be included before step  801 . In step  803 , the terminal converts a resume signal into the wake-up signal of the terminal or the resume signal of the USB for driving the wireless modem device and sends the converted signal. 
     The specific work process of this embodiment is described with reference to the schematic structural view of the wireless modem device in  FIG. 2  and the schematic structural view of the terminal in  FIG. 4 . When the terminal intends to resume a work state from a sleep state or a standby state, an operating system  23  inside the terminal sends a resume signal of the terminal to a modem drive unit  22 . A first conversion subunit  222  in the modem drive unit  22  converts the resume signal into the wake-up signal of the terminal or the resume signal of the USB for driving the wireless modem device, and the wake-up signal of the terminal or the resume signal of the USB is sent to a USB port  11  of the wireless modem device through a USB port  21  of the terminal. 
     Alternatively, a second conversion subunit  223  in the modem drive unit  22  further converts the wake-up signal of the terminal into the resume signal of the USB for driving the wireless modem device, and the resume signal of the USB is sent to the USB port  11  of the wireless modem device through the USB port  21  of the terminal. The USB port  11  sends the wake-up signal to a selection circuit module  123  of the wireless modem device. The selection circuit module  123  recognizes the received signal as the wake-up signal of the terminal or the resume signal of the USB, and then sends the wake-up signal of the terminal or the resume signal of the USB to a wake-up circuit module  122 . The wake-up circuit module  122  sends a second notification signal to a CPU  13  of the wireless modem device according to the wake-up signal of the terminal or the resume signal of the USB, so that the CPU  13  wakes up or resumes from the sleep state or the suspend state, that is, the wireless modem device resumes the work state. 
     Through the wireless modem device sleep/wake-up method provided in this embodiment, it can be implemented that, when the wireless modem device needs to be used again, the wireless modem device is enabled to wake up from the sleep state to implement self-starting of the wireless modem device, thereby increasing the usability of the wireless modem device. 
       FIG. 9  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a fourth embodiment of the present invention. As shown in  FIG. 9 , the method includes the following steps. 
     In step  901 , a sleep signal, a standby signal or a resume signal is converted into an action signal for driving a wireless modem device. 
     In step  902 , the action signal is output to the wireless modem device through a serial bus to enable the wireless modem device to sleep or wake up. 
     The terminal converts the sleep signal, standby signal or resume signal of the terminal itself into the action signal for driving the wireless modem device. The action signal may be a standby/sleep signal or a wake-up signal of the terminal or a suspend signal or a resume signal of a USB, where the suspend signal and the resume signal are respectively obtained by converting the standby/sleep signal and the wake-up signal. The terminal outputs the action signal to the wireless modem device, and the wireless modem device converts the action signal into a notification signal to enable the wireless modem device to sleep or wake up through a CPU of the wireless modem device. 
     Through the wireless modem device sleep/wake-up method provided in this embodiment, it can be implemented that when the wireless modem device does not need to be used, the wireless modem device is enabled to sleep to decrease the power consumption of the wireless modem device, and when the wireless modem device needs to be used again, the wireless modem device is enabled to wake up from a sleep state to implement self-starting of the wireless modem device, thereby increasing the usability of the wireless modem device. 
       FIG. 10  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a fifth embodiment of the present invention. As shown in  FIG. 10 , the method includes the following steps. 
     In step  1001 , a terminal converts a sleep signal or a standby signal into a standby/sleep signal of the terminal or a suspend signal of a USB for driving the wireless modem device. 
     In step  1002 , the standby/sleep signal of the terminal or the suspend signal of the USB is output to the wireless modem device through a serial bus, so that the wireless modem device enters a sleep state or a suspend state. 
     For detailed description of the wireless modem device sleep/wake-up method in combination with the structure of the wireless modem device and the terminal, reference may be made to the foregoing embodiment, and the details will be not described herein again. Through the wireless modem device sleep/wake-up method provided in this embodiment, it can be implemented that when the wireless modem device does not need to be used, the wireless modem device is enabled to sleep to decrease the power consumption of the wireless modem device, thereby increasing the usability of the wireless modem device. 
       FIG. 11  is a schematic flow chart of a wireless modem device sleep/wake-up method according to a sixth embodiment of the present invention. As shown in  FIG. 11 , the method includes the following steps. 
     In step  1101 , a terminal converts a resume signal into a wake-up signal of the terminal or a resume signal of a USB for driving the wireless modem device. 
     In step  1102 , the wake-up signal of the terminal or the resume signal of the USB is output to the wireless modem device through a serial bus to wake up or resume the wireless modem device. 
     For detailed description of the wireless modem device sleep/wake-up method in combination with the structure of the wireless modem device and the terminal, reference may be made to the foregoing embodiment, and the details will be not described herein again. Through the wireless modem device sleep/wake-up method provided in this embodiment, it can be implemented that, when the wireless modem device needs to be used again, the wireless modem device is enabled to wake up from the sleep state to implement self-starting of the wireless modem device, thereby increasing the usability of the wireless modem device. 
     Persons of ordinary skill in the art should understand that all or apart of the processes of the method according to the embodiments maybe implemented by a computer program instructing relevant hardware. The program may be stored in a computer readable storage medium. When the program is run, the processes of the methods according to the embodiments are performed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), and the like. 
     Finally, it should be noted that the foregoing embodiments are merely provided for describing the technical solutions of the present invention, but not intended to limit the present invention. 
     It should be understood by persons of ordinary skill in the art that although the present invention has been described in detail with reference to the embodiments, modifications maybe made to the technical solutions described in the embodiments, or equivalent replacements may be made to some technical features in the technical solutions, as long as such modifications or replacements do not depart from the spirit and scope of the present invention.