3G is a collection of third-generation cellular data technologies. It is an Upgrade of 2G and 2.5G GPRS network.

While the first generation (1G) was introduced in 1982, the second-generation cellular data technologies (2G) became standardized in the early 1990s. Only after these 3G technologies were introduced in early 2001, but it could not be so popular at that time, but in 2007, it became famous among the people.

A product will only have a “3G” stamp when a cellular data transfer standard meets a certain set of specifications that the International Telecommunications Union has defined, called the IMT-2000.

For example, all 3G standards must have at least a peak data transfer rate of 2 Mbps. But in most 3G standards, the even higher transfer speed was around 14.4 Mbps or more.

Many cell phone companies market their phones by saying “3G technology”, but there is no single 3G standard among them. At the same time, different companies use their technologies to achieve similar data transfer rates.

For example, AT&T uses a 3G technology based on GSM, while Verizon uses a technology based on CDMA. Apart from this, cellphone networks outside of the United States use different IMT-2000 compliant standards to achieve 3G data transfer speeds.


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