3G is defined as the 3rd generation of mobile phone and data communication standards, featuring higher bandwidth for web-based applications and video.
An example of 3G is the cell network that is used for many iPhones in the US and abroad.
(3rd Generation) The third version of a product or system. For example, the previous generation of cellular transmission is 3G, which features moderately high speed for Internet access compared to the very sluggish 2G systems. In the U.S., the major 3G technologies are EV-DO for CDMA networks, such as used by Verizon and Sprint, and HSPA for GSM carriers such as AT&T and T-Mobile.Although 4G LTE technology has been widely deployed, carriers maintain their 3G networks for compatibility with the millions of older 3G cellphones in use. See cellular generations, 3G + Wi-Fi, EV-DO, HSPA and LTE.
Referring to digital cellular radio systems and standards that fit under the umbrella of International Mobile Telecommunications-2000 (IMT-2000), an ITU initiative for a twentyfirst century wireless network architecture. Specifications include 128/144 kbps for high-mobility applications, 384 kbps for pedestrian speed (i.e., walking speed) applications, and 2.048 Mbps for both fixed WLL (Wireless Local Loop) and in-building applications such as WLANs (Wireless LANs). 3G systems include Universal Mobile Telecommunications System (UMTS), also known as Wideband CDMA (W-CDMA), Code Division Multiple Access 2000 (CDMA2000), and Time Division-Synchronous Code Division Multiple Access (TD-SCDMA). See also CDMA2000, cellular radio, IMT-2000, ITU-T, TDSCDMA, UMTS, W-CDMA, WLAN, and WLL.
The third generation of cellular-phone network technology, capable of fast rates of data transmission that support e-mail communications, high-speed Internet access, video streaming, etc.