3G is a network signal. Mobile 3G license is TD-SCDMA (G3), China Unicom and Telecom are WCDMA (Wo) and CDMA2000 (Tianyi).
Refers to the support of high-speed data transmission cellular mobile communication technology.
In other words, put the mobile card, whether it is 2G card or 3G card, can only use 2G network.
3G is simply the third generation of mobile communication technology.
For ordinary users, to understand the general is 3G is much faster than 2G ~ 4s is indeed 3G mobile phone, but does not support China Mobile's 3G network.
