While 2G still has the biggest share in the global market, 4G LTE has certainly been up and running in most countries (186 countries as of January 2017. Source: GSA). As of Q3 2016, the global LTE subscription rate reached 22.4% (source: OVUM) and it is still going up. Especially, global LTE leaders have reported 70~80% of LTE penetration. Those with matured LTE markets, like South Korean big 3...