Ofcom has warned O2 that it must increase its 3G coverage by June or pay a penalty equivalent to £40 million, but O2 claims it will meet the regulator's target. When five operators bought 3G licences ...

Older 3G wireless technology is being phased out this year to make room for newer, faster 5G networks. AT&T shut down its 3G network in late February, T-Mobile plans to do the same by the end of March ...

Wireless carrier Vodafone Group is testing femtocell technology, which uses mini base stations in homes and small offices to improve indoor 3G coverage. The larger version of this concept is the ...