Q&A: What next for 4G in the UK?

EE already has a 4G network up and running

Five UK mobile operators have paid a combined sum of £2.3bn for spectrum that will allow them to roll out faster 4G mobile services. What does the auction mean for consumers and when will they see services?

What exactly have the mobile operators bought?

It raised less money than expected, is this good or bad?

What is 4G anyway?

How much will I have to pay to upgrade?