Korean operators jostle for position in the 5G era

It’s been a busy week as SK Telecom has claimed to have commercialized five-band Carrier Aggregation (CA) and 4X4 MIMO, while Vodafone and LG UPlus have announced a collaboration.
Starting with SK Telecom has made another incremental step towards LTE-A Pro, the last stage of LTE evolution. The company’s five-band CA LTE-A Pro service supports up to 700Mbps data rates, covering 53 cities in Korea. The team has also launched a 900 Mbps LTE-A Pro service by combining three-band/ four-ba