1.3 Evolution of 5G mobile technology toward 1 2020 and beyond

Recently, LTE has become the mainstream of mobile technologies, and global expectations for 5G toward 2020 and beyond are rapidly growing. It is expected that 5G will cover a wide variety of use cases and a wide range of frequency bands. Today, some promising technologies are emerging, especially those using new technology combinations. Through such combinations, things which were considered impossible today will be achieved in the 5G era. Together, let us envision a new world: Wider coverage cellular systems even at higher frequencies, and single-RAT 5G system which covers all 5G use cases and spectrum bands.