Video - Reliable mobile internet solution for DSLR live broadcasting a wedding?

I am going to shoot a wedding. There will be activities where there will be no wifi.

Question: how can i provide myself reliable high speed wifi for broadcasting the wedding via youtube?

I usually use OBS installed on my laptop and feed video from my Canon camera into my laptop. I feed sound through wireless microphone into the laptop. OBS does the rest.

I would like to use a DSLR or mirrorless mounted on the top of a monopod or tripod. I would like to move it around as people move around.

Any advice? How should I do it?

Thanks so much!

1. You need a connection to internet...it could be 1A thru wireless phone's cellular connection, or 1B via landline internet connection to a router.
Once you have an internet connection, then
2b. you simply need a Wireless Access Point to give you a wireless connection to the internet, or 2A. you connect wirelessly to your cellular phone via its Hotspot activation.

Wth solution A you need sufficient data capacity thru your cellular service (or pay for additional capacity). With solution B, you generally need not worry about consuming data capacity.

Then comes the question of wireless connectivity of your camera (if it has wireless communication) to the wireless connection. And also, whether the camera's wireless connection is FAST ENOUGH to support live video feed.

I think going there and test it is the best option.
I thought this would be easier to do.
So I have either cable wifi or network hotspot. The only way I find out whether the network is strong enough is to test.
Thanks so much!

I tried to do this last weekend. The signal didn't support upstream at all. I had one of the fastest data plan in the USA. It may work for some but didn't work for me. WiFi signal was able to support live stream but not the phone data plan.