Can update IPhone without Wi-Fi?

I have no Wi-Fi and I use my network on my phone and soon the IOS 7 might come out. I wonder if you can update your phone without Wi-Fi on computer. I really want to update it because it's the IOS 7 and well

If you have internet on your computer then you can simply update through itunes. Alternatively you can go to an Apple store, or even McDonalds and use their Wi-Fi if you have no internet access at home.

You can definitely update your iPhone. Just plug it in your computer with the designated cable and you're good to go. Use iTunes.

What if you don't have Internet at all? Is there a way to do it just on the 3g network?

How can update my iPhone without Wi-Fi