1Gから5Gへ, witness mobile communication change
1G: The Age of Voice
1G is a cellular radiotelephone system based on analogue technology. It was born in the 1980s with a maximum speed of 2.4Kbps.
During this period, the mobile phone is commonly known as “Big Brother” began to enter people’s lives. 過去に, people’s exchanges in different places could only rely on correspondence, and the appearance of “Big Brother” could achieve “a thousand miles of transmission.”
“Big Brother” is as thick as a brick. It can only maintain 30 minutes of talk when fully charged. It takes nearly 30,000 yuan to buy one, which was a high-end luxury product at the time. Driving Santana and “Big Brother” was the success criterion of the year!
2G: The Age of Text
This is the era of the network with digital voice transmission technology as its core. The highest speed of 2G is 50Kbps. Compared with 1G mobile phones, 2G mobile phones are more compact, save power, and can send and receive text messages, read e-books and simply browse the web.
で 2000, the first domestic mobile phone supporting 2GWAP to go online was listed as Nokia’s 7110 button phone. Mobile phone representatives of this period also include Motorola and Ericsson. Mobile phones generally have classic snakes, Tetris and other games.
3G: The Picture Age
3G networks bring faster data transmission speeds, and their speeds are generally in the hundreds of kbps. 3G mobile phones can handle various media forms such as images, music, and video streams, and provide a variety of information services including web browsing, conference calls, and e-commerce.
With the advent of the 3G era, brands such as Apple, Samsung, ファーウェイ, and BBK have risen rapidly, while formerly dominant brands such as Motorola, Nokia and Sony Ericsson have gradually declined. During this period, communication tools such as Weibo, QQ, and WeChat began to prevail. The Internet replaced the traditional voice call and became the main function of mobile phones.
4G: The Video Age
4G is an era of all-IP data networks, with a network speed of up to 100Mbps. 今日, mobile phones are no longer a simple communication tool, but a way of life for each of us. Mobile payment, WeChat, Weibo, watching videos, playing games, map navigation … Mobile applications are in every aspect of our lives.
5G: The Internet of Things
In June this year, the Ministry of Industry and Information Technology issued 5G commercial licenses to the three major operators, marking that China officially entered the first year of 5G commercialization. Compared with 4G, 5G transmission speed is hundreds of times faster, and an ultra high definition movie can be downloaded in a few seconds.
過去に, communication was connected between people, but in the 5G era, artificial intelligence, big data, and the Internet of Things will cross and cooperate with each other, and the connection between people and things and between things will become possible.
