Are you ready to welcome 5G?

1. History of the development of modern networks

The 1G network was born in the late 1970s to the 1980s. It is a cellular radiotelephone system based on analog technology. The sound is transmitted through unencrypted radio waves, and anyone can listen to the conversation using off-the-shelf equipment. 1G implements analog voice communication, and the phone can only make calls without a screen.

The 2G network is an upgraded version of 1G. It was built in the 1990s and is based on digital voice transmission technology. The 2G network not only encrypts calls, but also makes more efficient use of the wireless spectrum and provides data transmission similar to dial-up Internet or early DSL services. 2G realizes the digitization of voice communication, and the function machine has a small screen to send text messages;

The first batch of 3G networks was built in the early 21st century, but it was not widely popularized in the United States at the time. I am afraid that not many people have remembered. 3G realizes multimedia communication such as pictures other than voice, and the screen becomes larger to see pictures;

Since the launch of the first iPhone that supports 3G networks in July 2008, they have begun to pay more attention to the application economy. In the month of the release, Apple also launched its own app store App Store. A few months later, the first phones that used the Google Android operating system were also launched in the US. Soon, smart phones that have been regarded as luxury goods have been in daily life and have a hand. Since then, the United States has gradually taken the lead in the transition to 4G. 4G achieves local high-speed Internet access, and large-screen smart phones can watch short videos.

2. What is 5G?

Simply put, 5G is the fifth-generation communication technology, the main features are wavelengths of millimeters, ultra-wideband, ultra-high speed, ultra-low latency. 1G~4G is aimed at more convenient and quick communication between people, and 5G will realize the connection of anytime, anywhere, and everything, so that humans dare to expect to participate in the same way with all the things on the earth through live broadcast. The core specification of 5G technology existed as early as 2011, but the actual completion took up to 7 years. Operators around the world have begun to build test networks for the arrival of the 5G era. However, the actual test content may be difficult to achieve.

3.Opportunities and challenges to be faced in the 5G era

- People will enjoy a more efficient and fast life

- High cost, rural and low-income areas may never be 5G

- Currently, there are fewer devices supporting 5G.

What do you think of 5G?