The South Korean mobile communications market is one of the world's most competitive and innovative. That keeps the pressure on SK Telecom, South Korea's largest mobile service provider, to find way to keep implementing cutting-edge technologies. Editor Tammy Parker recently conducted an email Q&A with Alex Jinsung Choi, executive vice president and head of SK Telecom's ICT R&D division, regarding the operator's roadmaps for LTE-Advanced and 5G. The following is an edited and condensed version of that Q&A.
Nokia aims to get engineers out of the driver's seat by putting spectrum analyzers into base stations, eliminating the need for costly, labor-intensive and time-consuming drive testing to identify and solve radio-frequency interference.
In discussing Cloud RAN and Centralized RAN (C-RAN) distributed base station architectures, the related topic of shifting services away from the network core often pops up.
SK Telecom said it will build out more 1.8 GHz base stations this year to provide 20 MHz of additional LTE bandwidth across South Korea and announced it is moving closer to rolling out a 10 MHz segment of the 2.1 GHz band that will enable it to provide 40 MHz of carrier-aggregated bandwidth.
Sprint along with Nokia Solutions and Networks demonstrated that a single sector of a TD-LTE network can deliver data throughput of 2.6 Gbps.
LTE users in the world's most advanced mobile markets consume considerably more data than 3G users, even eschewing Wi-Fi networks in order to stick with their LTE connections, according to new analysis from GSMA Intelligence.
SK Telecom intends to showcase its LTE Advanced three-band carrier aggregation technology next month during the Mobile World Congress in Barcelona, delivering download speeds of 450 Mbps by aggregating three 20 MHz bands.
Infrastructure vendor Ericsson and Korean operator SK Telecom have taken advantage of an LTE Advanced (LTE-A) capability to enable mobility without the need for an inter-cell handover between base stations.
SK Telecom's rollout of LTE Advanced carrier aggregation signals things to come, as operators such as AT&T and Verizon Wireless prepare to follow suit in the coming months.
Thanks to SK Telecom, LTE Advanced is commercially deployed, or, at least, the carrier aggregation component of LTE-A is. And as operators in other developed markets, such as the United States, lay out their own plans to deploy LTE-A features as well, they will be keeping a close eye on lessons they can learn from SK Telecom's pioneering efforts.