Evolution of "Popular Science" Network from 1G to 5G

Since 1980s, mobile communication technology has been connected with everything from the king of Nokia 3G CDMA 4G LTE 5G, 1G mobile phones, and has undergone five generations of changes. The development of each generation of mobile communication technology has brought about the changes of the times, and our life has become convenient and rich.

What kind of exchange trip is this?

1G: analog voice era

1G is the first generation of mobile communication technology, which was formulated in 1980s. This is a cellular radiotelephone system based on analog technology. Now, the analog mobile network that has been eliminated has occupied the first position in the history of wireless communication. The design of 1G wireless system can only transmit voice traffic, which is limited by network capacity. AMPS is a typical example of 1G network.

Popular mobile phones in Jianghu.

In the era of 1G, "the most expensive child (expensive price, expensive communication)"-mobile phone, which can only transmit voice and answer calls, and has the limitation of distance, is prone to serial number and stolen number, and will soon be eliminated. Now, it can only be the memories of many people.

2G: Digital Voice Era

2G is the technical specification of the second generation mobile phone communication, which has changed the analog communication mode and started the road of digital communication with digital voice transmission technology as the core. Compared with the first generation mobile communication technology, the second generation mobile communication has a high degree of confidentiality, and the capacity of the system is greatly increased. At the same time, there are more data transmission services than 1G, and mobile phones can access the Internet from this generation, and the earliest short messages have also begun.

Nokia 1 100, the best-selling mobile phone in the world.

3G: the Popularization Era of CMDA

3G is the third generation mobile communication technology, which refers to a new generation mobile communication system that combines wireless communication with multimedia communication such as the Internet. On June 7th, 2009, China issued three 3G licenses, namely TD-SCDMA of China Mobile, W-CDMA of China Unicom and WCDMA2000 of China Telecom, and China entered the 3G era.

IPhone3G, an epoch-making product, is the beginning of smart phones.

Under 3G, we have higher bandwidth and stable transmission, video telephony and mass data transmission are more common, and the application of mobile communication is more diversified. Due to the combination of wireless communication and Internet, smart phones and tablet computers are developing rapidly, and 3G is regarded as the key to open a new era of mobile communication.

4G: The New Height of Mobile Internet

4G is the fourth generation mobile communication technology. It is a small fresh meat that officially entered people's sight on 20 13. It can transmit high-quality video images and high-quality images. After entering the 4G era, the global mobile communication standards show a trend of further integration. From the perspective of influence, 4G can be said to be a communication technology specially designed for the mobile Internet. In terms of network speed, capacity and stability, 4G has obviously improved over the previous generation of 3G technology, which can meet the requirements of almost all users for wireless services.

The communication speed of 4G network is greatly improved, and high-definition images, videos and other data can be transmitted quickly. The mobile internet has opened a new wave, and emerging industries and applications such as mobile payment, Didi, and Meituan have flourished.

5G: Internet of Everything Era

5G is the fifth generation mobile communication technology, and the 5G network has three main features:

High-speed is not only as simple as downloading 1 ultra-high-definition movies in 3 seconds, but also VR, AR and cloud technologies will be seamlessly connected with life.

High reliability and low delay, millisecond communication delay, so that unmanned remote surgery is no longer far away;

A large number of terminal networks, with networking terminals of one million/km2, will form a broader and more open Internet of Things, making smart homes and smart cities possible.

Information is at your fingertips, everything is at your fingertips. In the 5G network, the data transmission rate is amazing, and the rate remains stable at more than 2Gbps, that is, 250 MB/s.

In order to cooperate with the 5G network, a large number of 5G base stations and high-speed broadband data centers need to be built and upgraded, and a large number of high-speed communication network cables are needed. Therefore, in the 5G era, the demand for Akihabara Cat-7, Cat-7, Cat-8 and Cat-8 cables with 10 Gigabit high-speed transmission capacity and high speed, large capacity and low delay has ushered in a big explosion.

At the same time, the home network cable needs to be updated. Akihabara Super Category 6 (CAT6A) network cable, with a transmission rate of 10 Gbps and a bandwidth of 500MHZ, has become the first entry network cable for high-speed transmission of 5G at home and corporate offices.

The wheel of history is moving in the mud, not on the highway. From 1G to 5G, the main differences lie in the rate, service type, transmission delay, and various mobile communications that adopt different technologies and follow different communication protocols. They have gone through a series of processes of germination, growth, revision and upgrade, so let's continue to look forward to a new future!