Transport for London (TfL) is to introduce 4G mobile coverage on the Tube from 2019.
Following a successful trial on the Waterloo & City Line, TfL now plans to tender for a service provider to deliver a 4G service to Tube passengers.
Graeme Craig, Director of Commercial Development at TfL, believes this is "great news for our customers".
"The success of this trial shows that we are on track to unlock one of the UK's most high profile not-spots and deliver 4G mobile coverage throughout our tunnels and Tube stations," he commented.
Furthermore, Mr Craig noted that a 4G rollout will help the organisation generate vital commercial income, which can be reinvested in modernising and improving London's transport network.
O2, which was among the organisations to work with TfL on the project, believes that by increasing digital connectivity on the Tube, people will be able to get more out of their journey time.
"The demand for ubiquitous, fast mobile connectivity is unquestionable," said Derek McManus, Chief Operating Officer of O2.
"People expect to have connectivity wherever and whenever they are."
Mr McManus went on to state that trials such as these are "vital in laying the foundations for customers, especially commuters, to have seamless connectivity on the go".
Vodafone, which was also involved in the trial, added that it has seen usage of mobile data traffic increase by about 300 per cent in London alone over two years.
Ker Anderson, Vodafone UK's Head of the London mobile network, said this is why it is investing heavily in its network to offers people in London "the strongest signal possible".
"Delivering 4G on the Tube will keep our customers connected while they are on the move," he stated.