SK Telecom announced on June 5th, that it successfully commercialized five-band Carrier Aggregation (CA)* and 4X4 MIMO, which are key technologies of LTE-A Pro, the last stage of LTE evolution.
* SK Telecom's bandwidth resources as of February 2017: 10MHz bandwidth in the 800MHz band, 20MHz bandwidth in the 1.8GHz band, 10MHz bandwidth in the 2.1GHz band, 10MHz + 20 MHz bandwidths in th...