You can set the device as a wireless router so that other devices can connect to the Internet by using your device's mobile data.
On the settings screen, tap Networks Tethering Wi-Fi hotspot and then drag to activate it.
Tap Set up Wi-Fi hotspot, and enter the Wi-Fi name (SSID) and password.
Turn on Wi-Fi on the other device, and select the name of the device network on the Wi-Fi list.
Enter the network password.