2015329620008-王晨晨-homework8

Describe the scenaries of applications when 5G wireless networks become true.

 

"The Internet is connected to mankind and the Internet of things to society." The Internet of things and 5 G have become the hottest words at the World Mobile Conference in Shanghai.

All along, the development of mobile communication technology has played an important role in promoting the progress of all mankind. A few years ago, we used Turtle Speed undefined 2G network; today, 4G networks are almost standard for our lives. As a new generation of mobile communication system facing 2020, 5G mobile communication technology is no longer a concept of future tense, it has become a reality of progressive tense.

If 4G changes life, then 5G will change society.

Human beings have never stopped pursuing the pace of communication speed. The evolution of communication technology from the earliest telegram, telephone to mobile communication technology is the communication between people and people. It can be said that "Communication is Convenient" to promote the development of the communication industry. And in today undefined network, virtual reality, 4K video is becoming more and more popular. Under the environment, the users undefined demand for the network is also getting higher and higher. To meet the increasing network needs of the users, a higher bandwidth, lower delay, and a wider coverage of the mobile network is essential, and 5G is a network that can meet these needs.

"G" is the abbreviation of "Generation" (x generation). It is not difficult to understand that 5G is the fifth generation mobile communication technology. Looking back on the past, the first generation of mobile communication technology, which is an analog technology, can only provide voice calls of low quality, while the second generation of mobile communication technology has realized digital voice communication, The third generation mobile communication technology is known to us as 3G technology, which is characterized by multimedia communication and can provide voice and data services at the same time. The fourth generation mobile communication technology is the 4G technology that is being rolled out. Its communication rate is greatly improved, and it can watch 1K high-definition video programs online smoothly. But by the fifth generation mobile communication technology, it can carry more device connections. Have a faster response, transport more traffic.

In terms of communication technology, the 5G network has three main characteristics: extremely high speed, great capacity, and extremely low delay. So what changes will the 5G network bring to our lives?

When it comes to 5 G, many people undefined first reaction must be "quick", which is inevitable. At present, the peak speed of 4G network is 75Mbps. Therefore, the target of 5G will be the maximum 10Gbpss, which is more than 100 times the speed of 4G network, so the download speed of 5G network can reach 1-10G / s. In other words, in 5 G network, a 4G high-definition movie can be downloaded in about 1 second.

If the 5G era comes, 4K video and even 8K video will be able to play smoothly and in real time; cloud technology will be better used, life, work and entertainment will be "cloud"; on the other hand, The speed of the network also means that hard drives will be replaced by cloud disks, uploading large files to the cloud anytime and anywhere.

In addition, the 5G network has a delay of only 1/1000000 seconds, which is about 50 times faster than the 4G network. Its reliability is equivalent to fiber-optic connection and can guarantee that sudden interruption will not happen again, which is very important for security. Since 4G, the smart home industry has been on the rise, but it is only in its infancy that 4G is still a long way from the real "interconnection of everything", and 5G traffic will provide the necessary conditions for "interconnection of all things". By then, human beings may indeed be able to live an intelligent life in which they reach for their clothes and eat their mouths:

In the morning, your pillow, quilt, or bed wakes you up from your sleep in a more natural and softer way, and the curtains and lights that need to be turned on in the room are automatically turned on for you; when you go to the bathroom, the lights will be adjusted for you. The temperature of the water or even the toilet seat; after grooming, the basic physical data of your body have been detected through the household items you use. If further examination is necessary, you will be reminded to go to the hospital for an examination.

When you open the door, your self-driving car has automatically driven from the garage or parking space to the downstairs, you just need to enter the destination and demand (avoid congestion or the nearest trip, your car will automatically plan the route. At this point, you can wear a VR helmet into a virtual world, where you can interact with others, play games and even "physically touch."

Of course, the changes brought about by the 5G network go far beyond that; smart cities, smart grids, smart grazing / planting, real-time logistics tracking, remote driving, industrial control. All these are likely to come with the 5G age.