What is the 5G era?

What is the 5G era? The change of each era is accompanied by the occurrence of new stories. The 4G era has passed, and now it is the 5G era. Compared with 4G, 5G is faster mobile data on the network. So what is the 5G era?

What is the 5G era? 1 Literally, 5G means "the fifth generation mobile communication technology".

The development of each generation of mobile communication will bring about a great leap in technology. In the 1980s and 1990s, brick-like "mobile phones" used the first generation of mobile communication technology, which could only transmit voice, that is, they could only make phone calls, but could not surf the Internet or send short messages. Moreover, the voice quality is low, the signal is unstable, the coverage is not wide enough, and it is easy to be crossed and stolen.

Since the second generation, that is, 2G, mobile communication has entered the digital era, and the quality, security and speed of communication have been greatly improved. Mobile phones can surf the Internet at a relatively low speed.

With the advent of 3G era, mobile communication has entered the multimedia era due to the rapid increase of Internet access speed. We can send and receive images, music, small videos and so on. With our mobile phones, we can also browse the web and hold conference calls. And 4G, for us, watching movies, sending videos and playing games at any time is no longer a luxury.

In the 4G era, we often use Tik Tok, Aauto Quicker and watermelon videos. For the first time, the number of people using mobile phones to play games online surpassed that of computers. Mobile payment has begun to replace cash, which has brought us great convenience.

If the first four generations of mobile communication technology are driven by mobile phone applications, then the fifth generation is combined with the current trend of the Internet of Everything to meet the needs of applications such as the Internet of Things, the Internet of Vehicles, smart medical care, virtual reality, and Industry 4.0. Therefore, compared with 4G, 5G does not simply improve the internet speed, but comprehensively considers multiple technical indicators: network speed, mobility, time delay, connection density and so on.

What does this mean? Internet speed is easy for everyone to understand, so let's talk about the significance of other indicators.

Mobility: refers to the ability to maintain transmission quality when moving quickly. High-speed rail, for example, now has a top speed of 350 kilometers per hour and will continue to improve in the future. 5G mobility should not only solve the problem of watching high-definition movies on high-speed rail, but also consider supporting the mobile speed of 500 companies per hour.

Time delay: refers to the time difference from one end to the other when transmitting data. 5G can provide a delay as low as 1 millisecond, that is, one thousandth of a second, which is 4G110, and can fully meet the needs of the car networking, industrial control, telemedicine and other industries.

Connection density: refers to the number of various terminal devices that can be connected in the same area while meeting the requirements of low cost and low power consumption. It is mainly used in the Internet of Things and smart cities. Therefore, 5G should not only pay attention to people's demand for network interconnection, but also promote the interconnection of various sensing devices and vehicles.

The popularization and continuous upgrading of 5G will greatly expand the application scope of mobile communication and make our production and life more beautiful and convenient.

How fast is it to download a high-definition movie with 5G?

As we know, it usually takes more than ten minutes to download a high-definition movie, such as Harry Potter and the Philosopher's Stone, from an ordinary home broadband network. Even the fastest speed claimed by the telecom company will take 2 minutes to download successfully. What if we use a 4G network? The fastest download speed also takes 4 minutes. In the 5G era, it only takes 2 seconds to download the same movie, which can really be said to be a success in the blink of an eye.

The reason why 5G is so fast is that it uses radio waves with higher frequency. The higher the frequency, the greater the available bandwidth and the greater the amount of data transmitted. For example, 4G is a four-lane ordinary expressway, and 5G is a 40-lane three-dimensional expressway, and the transmission speed can reach dozens of times of the former.

If we are careful, we will find an interesting phenomenon: in the past, the antenna of "mobile phone" was very long, and even early mobile phones had a small antenna protruding. Why doesn't the mobile phone have an antenna now? In fact, the mobile phone is not without an antenna, but it is just stuffed into the mobile phone.

The reason why 5G is fast is that its other "killer" is also related to this problem: the higher the frequency of radio waves, the shorter the antenna that needs to send and receive radio waves. The antennas of the 5G network are short enough to be measured by "millimeters", so a device can put many antennas into it to form directional beams, and it can also send and receive many groups of signals at the same time, which is of course much faster.

What is the concept of 5G in communication in the 5G era? It is the fifth generation mobile phone communication standard, also known as the fifth generation mobile communication technology. The peak theoretical transmission speed of 5G network can reach every 8 seconds 1GB, which is hundreds of times faster than that of 4G network.

The fifth generation mobile communication technology (English: 5thgenerationmobilenetworks or 5thgenerationwirelesssystems, the fifth generation for short, 5G technology) is the latest generation cellular mobile communication technology, and it is also an extension after 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. The first phase of the 5G specification in Release- 15 is to adapt to the early commercial deployment. The second phase of Release- 16 will be completed in April 2020 and submitted to the International Telecommunication Union (ITU) as a candidate for IMT-2020 technology.

What is 5G?

5G is the fifth generation mobile communication technology after 4G, and its transmission speed is 100 times faster than 4G. In theory, movies under 10G can be downloaded in one second. In addition, 5G has lower latency and greater capacity than 4G.

When you open a web page, there will be a delay of several seconds or milliseconds, and 5G will reduce this delay to 1 millisecond. At the same time, in areas with dense crowds and high traffic demand, users can enjoy higher network speed without worrying about network congestion.

5G era: Internet of Everything

The birth of 5G will promote the development of various fields and lay the foundation for the "Internet of Everything". The concept of Internet of Things has been called for many years, but the efficiency of digital transmission has limited its development. The practice of Internet of Things can be traced back to 1990 Xerox's networking in coke machine.

In the future world, every object has a sensor, which realizes data interaction through 5G, realizes the interconnection of everything and breaks the time and space restrictions. Curtains will automatically open, lights will automatically light up, and cups will automatically fill with water.

5G applications don't stop there.

With the advent of the 5G era, the low latency and high capacity of 5G will make AR/VR closer to our lives. The diversity of AR games will be developed, and game companies can provide more ways for AR characters to interact with the real world environment.

5G technology promotes the development of driverless field. Because the end-to-end delay of 5G technology is only 1 millisecond. At the same time, 5G technology can have 1 10,000 network connections at the same time within the range of 1 square kilometer. Unmanned vehicles can obtain road environment and driving information and automatically analyze road conditions, thus ensuring the safe driving of unmanned vehicles.

In addition, with the popularity of driverless cars, driverless cars can warn each other when turning and slowing down, and allow centralized intelligent traffic management systems to plan routes in advance to avoid traffic congestion.

5G is in China

In April, China's Ministry of Industry and Information Technology released China's 5G time development table, indicating that the first 5G mobile phone will be launched in the second half of 20 19. China Mobile and China Unicom also indicated that they will officially commercialize 5G technology in 2020, which makes China one of the first countries to enter the 5G era.

China Mobile announced that it will conduct tests in five cities in China this year, including Hangzhou and Shanghai, and more than 65,438+000 5G base stations will be built in each city.

Perhaps shortly after the advent of the 5G era, the 6G era is coming. In March this year, Miao Wei, Minister of the Ministry of Industry and Information Technology, said in an interview that China has started the research of 6G communication technology.

What is the 5G era? 1. What is the era of 5G network?

The era of 5G network is the fifth generation mobile communication network, and its network transmission speed is 100 times faster than that of 4G network, that is to say, a movie of 1G can be watched in 3 seconds. It is said that the 5G network era will be implemented in 2020. So what changes will the 5G network era bring to everyone? What kind of experience does it bring us?

Second, 5G will connect people with things and things with things.

Mobile phones are getting faster and faster. From the beginning, we can only answer the phone, and now there are more and more functions of smart phones, such as playing games, watching movies, reading novels, watching Tik Tok, brushing Weibo, etc., which have enriched our lives. We can see the current hot spots of Tik Tok in Weibo, replacing the newspapers we originally read and our landline. We basically use mobile phones to answer the phone, and seldom use the landline, which is convenient for us.

The fifth generation mobile communication system, referred to as 5G. If the speed of 1G is compared to walking, 2G is running, 3G is riding, 4G is equivalent to getting on a plane, and the imagined 5G is comparable to driving supersonic speed, which is faster and smarter.

In the 5G era, the most direct experience is that we will not get stuck when using any human-computer interaction products. Web pages open in seconds, videos open in seconds, and work and entertainment will be smoother and more efficient!

From the perspective of larger applications, 5G will bring the Internet of Things. For example, your car can communicate with the air conditioner at home. It's very hot. On the way home from work, the car told the air conditioner to start, and it was cold when I got home.

There are higher changes. After 5G is applied to all walks of life, it will bring about changes in the entire ecosystem. The place where we live will become a smart city with brains: it can monitor which places are sparsely populated and turn off street lamps to save energy; Where there is a car accident, automatically adjust the traffic lights to make way for life. And all this is real-time, without delay, just like in front of us a few kilometers away.

4G changes life and 5G changes society. Let's expect these future dreams to come true.