Chancellor Philip Hammond is set to announce an injection of more than £1 billion to upgrade Britain's digital infrastructure when he delivers his Autumn Statement on Wednesday.
Mr Hammond is expected to tell MPs the Government is to invest £400 million to boost development of new ultra-fast "full-fibre" broadband.
A further £700 million will be provided to fund a new programme of 5G trials aimed at transforming mobile communications.
The second phase of the 'Better Broadband for Oxfordshire' programme is currently being rolled out in the county.
Since it began more than two years ago the scheme has made superfast fibre broadband available to 67,500 county premises.
Roads are also set to get a £1.1 billion boost in the Autumn Statement.
And a further £220 million is set to deal with "pinch points" on Highways England roads, with Mr Hammond expected to give the green light for the National Infrastructure Commission's call for an expressway between Oxford, Milton Keynes and Cambridge.
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