(Telecompaper) LG Uplus has become the second carrier to launch LTE-Advanced in South Korea, after SK last month. The network offers double the speeds of LTE, up to 150 Mbps, Yonhap News reports. The operator uses carrier aggregation technology on the 800 and 2,100 MHz bands to offer the faster speeds. Customers can buy the Samsung Galaxy S4 LTE-A to access the new network, and the upcoming LG Optimus G2 is also expected to support LTE-A.