Although not shown in the figure, the mobile phone may further include a camera, a Bluetooth module and the like, which will not be elaborated herein.

In the embodiment shown in FIG. 2, the flow on a terminal side in each operation of the method may be implemented on the basis of the structure of the mobile phone.

In the embodiments shown in FIG. 4 and FIG. 5, each functional unit may be implemented on the basis of the structure of the mobile phone.

An embodiment of the disclosure also provides a computer-readable storage medium, which stores a computer program configured for electronic data exchange, the computer program enabling a computer to execute part or all of the operations executed by the terminal in, for example, the abovementioned method embodiments.

An embodiment of the disclosure also provides a computer-readable storage medium, which stores a computer program configured for electronic data exchange, the computer program enabling a computer to execute part or all of the operations executed by the network-side device in, for example, the abovementioned method embodiments.

An embodiment of the disclosure also provides a computer program product. The computer program product includes a non-transitory computer-readable storage medium storing a computer program. The computer program may be operated to enable a computer to execute part or all of the operations executed by the terminal in, for example, the abovementioned method embodiments. The computer program product may be a software installation package.