It will be possible to share the internet connection of your iPhone with other devices via Wi-Fi, Bluetooth or USB connection.
All you have to do is to enable the Personal Hotspot feature and make sure that your mobile carrier supports this option.
- On your iPhone, go to Settings > General > Cellular.
- Turn on "Personal Hotspot"
- Set up the Wi-Fi password.
- From there you can search for your new Wi-Fi hotspot from another device.