After receiving the share request information, the second device will return its own SIM card information to the first device. The SIM card information includes at least: information required for sending a network access request when the first device requests to access the network. For example, the SIM card information required for the first device to request to access the network includes at least the IMSI of the SIM card of the second device.

In some examples, the SIM card information may further include: SIM card information required by the first device to perform authentication with the network side after requesting to access the network. For example, the SIM card information may include: the SIM card information used for generating the authentication response, such as Ki of the SIM card in the second device.

In summary, in the examples of the present disclosure, the second device can share its own SIM card information with the first device through an interactive channel. Thus, the object of sharing the SIM card information of the second device with the first device can be achieved without manually extracting the SIM card of the second device and installing it in the first device, which expands the capabilities and scenarios of cellular mobile communication of the first device, and improves the intelligence of the first device and the second device.

The SIM card information may be specifically used by the first device to send a network access request to the network.

In some examples, the method further includes the following steps, as shown in FIG. 4.