Traditional cellular communication and 5g cellular

From 1g to the 5g era, the main changes are as follows:

1 and 1G era: only voice transmission, 1G stands for the first generation of mobile communication technology, cellular wireless telephone system based on analog technology, such as analog mobile network that has been eliminated now. The design of 1G wireless system can only transmit voice traffic, which is limited by network capacity. In the era of 1G, public telephone booths and people waiting to make calls can be seen everywhere, and everyone has a BB machine pinned to his belt.

2, 2G era: mobile phones can access the Internet, the second generation of mobile phone communication technology specifications, with digital voice transmission technology as the core. Generally defined as the inability to directly transmit information such as e-mail and software. Only the technical specifications of mobile phone communication are available with calls and some transmissions such as time and date. In the 2G era, the mobile phone is not so popular, just a tool for making phone calls.

3.3G era: Wireless Internet access anytime and anywhere. 3G is the third generation mobile communication technology, which refers to the cellular mobile communication technology supporting high-speed data transmission. 3G services can transmit voice and data information at the same time, and the rate is generally above several hundred kbps. 3G refers to a new generation of mobile communication system that combines wireless communication with multimedia communication such as the Internet.

4.4G era: 2000 times faster than dial-up Internet access. The fourth generation mobile communication standard refers to the fourth generation mobile communication technology. 4G is a combination of 3G and WLAN, which can quickly transmit data, high-quality audio, video and images. The download speed of 4G can reach more than 100Mbps, which is 25 times faster than home broadband ADSL.

5.5G era: the Internet of Everything. The fifth generation mobile communication technology is the latest generation of cellular mobile communication technology, which is an extension of 4G(LTE-A, WiMax), 3G(UMTS, LTE) and 2G(GSM) systems. The performance goals of 5G are high data rate, low latency, energy saving, low cost, high system capacity and large-scale equipment connection.