Setting up 4G home broadband in a weak signal area

[Anonymous]

 What do I need to do to set up 4G home broadband in an area that requires an outside arial?
I have a small wired Ethernet LAN and a single WiFi device. Apart from that, I know nothing at all.
I have seen thoroughly confusing adverts for aerials, antennae, boosters, modems, routers, dongles, omnidirectional this and that. There is talk of dB's, attenuation, access points. I am trying to climb the learning curve, but sliding backwards in a swirl of mystifying jargon. Please help. Thanks.

[adamtemp64 · Accepted solution]

Something like the huawei B315 http://consumer.huawei.com/en/smart-home/b315/ and an external directional mimo antenna pointed directly at the nearest line of sight mast for o2 

[Anonymous]

Thank you. This could turn out to be just what I need to know.

[Anonymous]

Sorry to bother you with a stupid follow-up question...

Does the mimo aerial connect to the B315 by a wire, or is it a radio link with no wires?

[adamtemp64]

By wires 

[Anonymous]

Thanks.