SK Telecom Co., South Korea's leading mobile carrier, said Monday it plans to deploy a mobile network service this year that is four times faster than the current Long Term Evolution (LTE) service. SK Telecom said it has successfully demonstrated the upgraded service, dubbed the 3band LTE-Advanced (LTE-A) service, by combining a 20MHz bandwidth and two 10MHz bandwidths. It is expected to be available to local users in late 2014 as soon as mobile devices supporting the network are launched by smartphone makers.