EE is to launch a 300Mb 'LTE-Advanced' network at Wembley Stadium in London next year, but has already set its sights on faster speeds.
The service provider is planning to trial up to 400Mb mobile broadband at the home of English football, as it looks ahead to future network upgrades.
EE is aiming to develop an ultra-fast 4G service that other UK operators can join, and use to provide access to ultra-fast download speeds.
The firm said it is looking to ensure every UK mobile device can get a great broadband connection and take advantage of a full range of online services.
Should the 400Mb mobile broadband trial prove successful, it could encourage EE to make ultra-fast services more widely available in the UK.
Wembley Stadium - with its capacity of 90,000 - is proving to be an ideal testing ground for EE.
Having announced a partnership agreement in February 2014, EE has spent the last few months carrying out network upgrade work within the ground.
The firm has already doubled 3G and 4G capacity, helping to ensure spectators can make calls and take advantage of faster mobile broadband speeds.
It has also installed Multi-Gb backhaul and added 12 new mobile antennae, in order to cope with increased network demands.
"More capacity means more people can connect, and upload more to social media and download or stream from sports channels," the firm stated.
Fotis Karonis, Chief Technology Officer at EE, said that, in the last six months, customers using the EE network at Wembley have uploaded the equivalent of 850,000 selfies and streamed 400,000 goal replays.
"We’ve added enough capacity to connect every visitor that walks through the gates, and we’re continuing to invest - more 3G, more 4G, super-fast WiFi and the capability to launch a multi-operator 4G service, supporting every network," he stated.
"This partnership has a very clear vision - we want Wembley to be the world’s best connected stadium, showing off new technologies first and giving two million visitors a year the best possible experience."