The large-scale commercialization of the first phase of 5G, whether from the system equipment or the terminal, is now basically ready. In fact, with each generation of mobile communication technology, the biggest obstacle to commercial use is the terminal. For example, although the 3G standard has been proposed in 1999, only commercial 3G mobile phones were available in 2003. Although the 4G standard has been proposed in 2008, commercial 4G mobile phones were only available in 2011. Although 5G standards have been set in 2018, it was not until the beginning of this year that manufacturers released 5G commercial mobile phones. So far, more than 60 terminals have been released worldwide.
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