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South Korea’s SK Telecom, with a 50% market share, has cranked up its LTE-Advanced service, offering speeds up to 225Mbps by aggregating 20MHz bandwidth in 1.8GHz band and 10MHz bandwidth in the 800MHz band, reports Light Reading. Ericsson supported the demonstration on commercially released software.

In 2013 SK Telecom became the first provider in the world to offer a publicly accessible LTE-Advanced network. LTE typically offers up to 150Mbps on a 20MHz band, while LTE-Advanced can combine different bands through Carrier Aggregation (CA). Combined with Multiple Input/Output antennas (MIMO) and other techniques, speeds can theoretically be boosted beyond 1 Gbps using LTE-A.

On 30 August, the operator got the green light to use a 35 MHz chunk of 1.8GHz bandwidth (20MHx downlink + 15Mhz uplink). The LTE-Advanced service from SK Telecom has proven popular, attracting more than one million subscribers in less than four months after launch.

Sprint’s forthcoming tri-mode LTE service, dubbed “Sprint Spark” combines 800 MHz, 1.9 GHz and 2.5 GHz LTE spectrum. It will come to the top 100 U.S. markets during the next three years with speeds capable of reaching 50-60 Mbps for end users and as much as 1 Gbps theoretically. Sprint is using 8 transmit, 8 receive technology (8T8R) for better coverage and speed at 2.5 GHz.

Verizon, the largest LTE rollout to date, reported LTE is available to more than 303 million people in more than 500 markets across the United States. At the end of the third quarter, 38 percent of Verizon’s customers were on LTE, generating 64 percent of its data traffic, according to the company.

About 167 million LTE devices are expected to be in use world-wide by the end of 2013.

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