Abstract: The present document discloses a wireless broadband data card which supports accessing a network in 3G and Wi-Fi modes. The wireless broadband data card is connected to a terminal through a USB interface, including: a USB device controller, a USB device driving module, an IP packet and Ethernet frame conversion module, a 3G access module, a dynamic host configuration protocol (DHCP) server activation module, and a Wi-Fi access module. By adopting the present document, the 3G access function and the Wi-Fi access function are integrated in one data card; on the one hand, the data card is convenient to carry and easy to use, and has a low cost; on the other hand, a uniform NDIS driver is used as a uniform data transmission channel and medium, thereby greatly reducing the software development cost and maintenance cost.

Abstract: A method and terminal for implementing hot-plug of a smart card are disclosed. The method includes: during the process of playing mobile multimedia, a descrambling library sending request information for obtaining a program key to a smart card driving module, which judges whether a smart card is in a plug-in state or a pull-out state after receiving the request information: if in the plug-in state, the smart card driving module forwarding the request information to the smart card, receiving response information returned by the smart card, forwarding the response information to the descrambling library, and meanwhile forwarding the response information to a virtual smart card module to save; if in the pull-out state, the smart card driving module forwarding the request information to the virtual smart card module, which returns the saved response information to the smart card driving module, which forwards the response information to the descrambling library.

Abstract: A method and terminal for implementing hot-plug of a smart card are disclosed. The method includes: during the process of playing mobile multimedia, a descrambling library sending request information for obtaining a program key to a smart card driving module, which judges whether a smart card is in a plug-in state or a pull-out state after receiving the request information: if in the plug-in state, the smart card driving module forwarding the request information to the smart card, receiving response information returned by the smart card, forwarding the response information to the descrambling library, and meanwhile forwarding the response information to a virtual smart card module to save; if in the pull-out state, the smart card driving module forwarding the request information to the virtual smart card module, which returns the saved response information to the smart card driving module, which forwards the response information to the descrambling library.