The basis of 5G development, MIMO and other major technical discussions

Mobile communication technology has developed rapidly in recent years. After several generations of technology accumulation and precipitation, a new generation of communication protocols has gradually appeared in our field of vision. We call it "5G" and what is "5G"? This article focuses on 5G, starting from its concept, future development, and several important technologies. I hope that after reading it, I will help you.

The concept of 5G:

5G is the fifth-generation mobile phone mobile communication standard, also known as the fifth-generation mobile communication technology. 5G is the abbreviation of the English “fifth generation”. The mobile communication field has experienced the development of four generations of technology, and its characteristics are from Analog technology and digital technology have come to the current high-speed multimedia communication. The 5G vision proposed by the above-mentioned Chinese companies, including features such as a significant increase in accessibility equipment, a reduction in end-to-end delay, an increase in user rates, and the ability to create conditions for the development of the mobile Internet and the Internet of Things.

On May 13, 2014, Samsung Electronics announced that it has pioneered the development of the first mobile transmission network based on 5G core technology, and said that it will conduct commercial promotion of 5G network by 2020.

The future of 5G:

Samsung's breakthrough technology breakthrough on 5G network will bring vitality to the global 5G network research and development, and promote its commercialization process, and contribute to the development of international standards for 5G network technology.

In order to seize the future market, many countries around the world have been competing to develop 5G network technology. China and the EU are investing a lot of money in the research and development of 5G network technology.

At present, many countries in the world have competed to develop 5G network technology, and both China and the EU have invested a lot of money and research and development. The technological breakthroughs Samsung has made on the 5G network will further intensify the competition for global 5G network R&D and accelerate its commercialization process. Experts from Samsung Electronics DMC Research Institute said that with the rapid advancement of data transmission speed of mobile networks, ultra-high definition (UHD) images and 3D stereoscopic images, which are 4 times to 8 times higher than full HD, will usher in a new era of development. .

If the 3G network speed is breeze and the 4G network speed is a storm, then the 5G network speed should be a tornado. With the approach of 20Gbps speed 5G network, what changes will happen in the future life?

Faster internet speeds and lower tariffs

Fast network speed is not the only standard for 5G, but for users, 5G requires at least a faster network speed. How fast is it?

South Korea's Samsung has tested 1Gbps 5G networks in 2013, which means it takes only 1 second to download a HD movie. The latest experiment in the UK proves that the speed of wireless data connection can reach 800Gbps, which is equivalent to downloading 800 HD movies in one second.

The high network tariff has always been the pain of Chinese users. At the beginning of 4G commercial use, there was a user who spit out "moving the house for a night." In the 5G era, this kind of worry becomes redundant. When 5G starts commercial use, the network tariff will be further reduced.

Clothing, food, shelter, and everything

It can be said that from 4G to 5G, it will be a fundamental revolution. Communication technology can be widely applied to realize the interconnection of all things, especially in the fields of transportation, medical care and industry.

According to the "White Paper on 5G Network Technology Architecture" released by China at the end of May, by 2020, 5G will be commercialized on a large scale, realizing a thousand times increase in data traffic, and expanding economic life from the past mobile Internet to the Internet of Things.

By 2020, it is widely expected that between 50 billion and 100 billion devices will be connected to the Internet. It is predicted that if all 5Gs are deployed, the number of connections will reach hundreds of billions, and the Internet of Things will become a reality, including remote surgery, driverless cars and a variety of "Internet of Things."

The Internet of Things can not only let you increase the indoor temperature through remote control or the refrigerator reminds you to buy milk, even when the train has not arrived, you can tell the passengers of the waiting car how many empty seats, 5G network will also Support for wearable devices such as fitness trackers and smart watches, smart helmets, smart home devices such as bird's nest indoor thermostats.

Seamlessly interface with WIFI

5G networks will be more stable than any previous mobile network connection, and latency will be reduced. At the same time, advances in wireless technology will make the network suddenly interrupted less and less. Delay refers to issuing commands and commands to get a response. The time difference.

Cao Shumin introduced the "low-latency, high-reliability scene" in the 5G era. For example, in the unmanned field, the car must have a millisecond response when driving. In addition to driverless cars, there are many other technologies that place high demands on the low latency of the network. Such as intelligent transportation, remote control surgery, remote control robots for complex operations. Ericsson predicts that the latency of 5G networks will be within 1 millisecond, which is 50 times faster than the current 4G network. This is very important, especially when doctors need to rely on the network for remote surgery or diagnosis.

The vice president of the wireless research department of Bell Labs, the world's leading communications and information research institute, said that in the 5G era, mobile phone users' perceptions of mobile networks and WIFI networks may disappear. Users from the outdoor to the indoor, from the mobile network to WIFI, can seamlessly and smoothly transition, eliminating the cumbersome steps of switching networks, entering passwords, and almost no WIFI "existence", including voice calls can also be on the WIFI network. transmission. From the user's point of view, WIFI seems to "dead", but in fact it is integrated with the mobile network, so that users can not perceive the difference between the two.

In addition, 5G is also suitable for "low light consumption, large connection" scenarios, such as bridges, high-speed railways, the wild, etc., will use a large number of sensors, with 5G technology, can achieve low power consumption, can be used for a long time .

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