A box on the telegraph pole, to one on the house? Without cable? Sounds like wireless. RF rather than IR.
So perhaps 5G. Which is probably even further away from live use than any of the technologies mentioned by @MrSaffron.
To be fair, Google have paused/abandoned fiber because of the cost, and look to be investigating/researching/waiting on 5G technology.
TBB news article
Some parts of Swindon seem to be getting a 4G service via BDUK. Though I doubt an engineer would suggest that BT were part of this.