
SK Telecom has also announced it has been granted approval to use 10 MHz of 2.1 GHz bandwidth for LTE. The operator plans to deploy LTE-Advanced Carrier Aggregation technology to combine the 10 MHz in the 800 MHz band, 20 MHz in the 1.8 GHz band, and 10 MHz in the 2.1 GHz band to support speeds of up to 300 Mbps.
SK Telecom won 30 MHz of 2.1 GHz spectrum in a 2010 auction. The operator will begin building base stations for LTE in the 2.1 GHz band in the second quarter, making the network available for commercialisation as soon as supporting handsets come to market. Until then, SK Telecom will apply Multi Carrier technology to these 2.1 GHz base stations to support its existing LTE networks.