Five central enterprises expressed their views on 5G licensing! 40 years of minimalist mobile communication history! Six questions that you care about most.

On June 6th, the Ministry of Industry and Information Technology officially issued 5G commercial licenses to China Telecom, China Mobile, China Unicom and China Radio and Television. China officially entered the first year of 5G commercialization. Enterprises will be market-oriented and business-oriented, actively promote the application and innovative development of 5G convergence, focus on industrial Internet, Internet of Things, Internet of Vehicles and other fields, empower more vertical industries, and promote the digital, networked and intelligent development of all walks of life.

Five central enterprises, the collective position is here!

China Telecom: Building a 5G network with the goal of high-quality development.

After obtaining the 5G license, China Telecom will continue to practice the development concept of "innovation, coordination, green, openness and * * * enjoyment", carry out 5G network construction with the goal of high-quality development, actively explore and promote the * * * enjoyment of 5G networks, reduce network construction and operation and maintenance costs, and ensure high-quality network quality and rich application services. We sincerely welcome domestic and foreign enterprises to participate in China Telecom's 5G network construction, business innovation and application R&D promotion, so as to promote industrial prosperity and enjoy development achievements.

China Unicom: It will continuously improve the network quality and service level.

China Unicom will adhere to the road of high-quality network construction and development, accelerate the pace of 5G commercialization, and promote the enjoyment of 5G networks; Continue to further promote Internet operations, build a 5G business ecosystem, develop 5G featured services, put relevant work in place with tangible corporate actions, continuously improve network quality and service level, and let hundreds of millions of consumers enjoy the fruits of 5G development.

China Mobile: Customers can open 5G services without changing their cards or numbers.

After obtaining the business license of 5G, China Mobile will accelerate the deployment of 5G network, build the world's largest 5G boutique network, and vigorously promote the "5G+" plan. By the end of September this year, customers can open 5G services without changing cards or numbers, and will continue to expand the scope of services in the future, so that customers can use 5G services conveniently and quickly and enjoy the benefits brought by new 5G technologies.

China Tower: Building 5G infrastructure quickly, economically and efficiently.

In the 4G era, the deepening of the construction of China Tower has provided a strong support for building a network power, and promoted China to quickly build the world's largest 4G network. In the 5G era, it is even more important to play the role of overall planning, tap * *, and build 5G infrastructure quickly, economically and efficiently, laying a "cornerstone" for the development of the "5G+ Plan". China Tower has the ability to improve the standardization work level, shoulder the heavy responsibility of coordinating the construction of 5G, and is confident to support the country to quickly build the world's largest and highest quality 5G network.

China Xinke: Building a 5G Industrial Ecology with Industrial Chain Partners

China Xinke has made many achievements in participating in the formulation of 5G standards, researching and developing 5G series commercial products, enriching their applications, and promoting industrial ecological cooperation, making preparations for 5G commercialization. China Shinco will actively build a 5G industrial ecosystem including terminals, chips, networks, business applications and test instruments with industrial chain partners such as China Telecom, China Unicom, China Mobile, China Radio and Television, China Tower and Huawei. , and create special 5G technologies, products and service solutions, such as wireless and transmission integration and mobile edge computing.

These six questions are all you want to know!

Question 1: The four high-profile 5G licenses must be very expensive. What can a license do?

Large-scale commercial use

The official issuance of 5G licenses means that China's 5G communication industry chain is mature and has the conditions for large-scale commercialization. And it was sent in June, much earlier than expected! Please note that it's not a pilot advertisement, it's a commercial advertisement, and the time is greatly advanced.

This shows that the industrial chain from equipment vendors to operators to terminal vendors has been opened, and large-scale commercialization is just around the corner.

Question 2: 5G is so good, when can everyone use it?

In 2020.

The issuance of licenses means that the technology is mature, and 5G has not been fully liberalized, because it is the standard of global development. After the standard is determined, 5G can be officially commercialized from the end of this year to the first half of next year. Real industrial explosion and large-scale commercialization will be realized in 2020.

Question 3: Someone asked, 5G is coming, should we change our mobile phones?

This really needs to change.

In the 5G era, mobile phones will be changed, because the network standard of each generation of communication technology is different, so the chip and mobile phone architecture used are different, so it is really difficult to achieve multi-purpose of one machine.

In the 5G era, the mobile phone is not only a communication terminal, but also a port for the Internet of Everything as a sensor, and related products such as smart wearable devices and smart homes will also come out one after another. In 2020, terminal products will be increasingly abundant, and diversified types will provide users with multiple choices.

In fact, last year, Xiao Xin reminded everyone not to change their mobile phones in a hurry, and wait for 5G-friends who change their mobile phones! ! 5G is coming, coming, coming! !

Question 4: I heard that I sent three card photos before, but why did I send four in the end?

Increase competition, * * create * * enjoyment.

The joining of radio and television network will increase the sufficiency of market competition, and at the same time, issuing licenses to radio and television to promote the release of 700 MHz frequency band will effectively use precious and scarce spectrum resources.

Question 5: China welcomes the first year of 5G commercialization. What is the international level?

We are indeed in the first echelon.

China's 5G technology has become increasingly mature, and it can be put into commercial use when the standard is established, and it is in the forefront of the world. On the other hand, China's 5G core patents account for more than 30% of the world's total, and it has a certain voice in the formulation of standards, making due contributions to the formulation of global 5G industry standards.

Question 6: Why is the official commercialization of 6:5G one year ahead of schedule?

The industrial chain is mature and the conditions are better.

The announcement of the issuance of the 5G commercial license was one year earlier than the previously disclosed information. On the one hand, China's 5G communication industry chain is constantly improving and has commercial conditions; On the other hand, after the 3G era and the 4G era kept pace, China made great efforts to lead the world from the day when 5G was put forward, and the industry developed rapidly and orderly.

Send you a copy of minimalist mobile communication history.

From 1G to 5G

I promise you will understand-

What does 5G mean? It is the abbreviation of English Generation, which means "the first generation" in Chinese and "the fifth generation" in 5G. Similarly, the previous 1G, 2G, 2.5G, 3G, 4G also indicated the meaning of which generation.

The history of mobile communication from 1G to 5G is not long. The first generation wireless communication system in the world was born in the 1980s, and it has only been more than 30 years today. It is the standard post-80 s.

1G

Before 1G, there were wired telephones in the world. However, the wired telephone limits the location of the call, and the telephone cannot move freely. If you don't sit next to the telephone, you have to walk a long way to make a phone call or answer it, which is very uncomfortable to use.

In Hong Kong movies in the 1990s, you often see a big boss or gangster holding a big brick, which is very funny and unique. That was the first generation of wireless communication telephone. Of course, you can also call it the first generation "mobile phone". At that time, "bricks" were valuable, more expensive than today's top iPhone, and most people could not afford them. In the 1990s, owning a "brick" was the dream of many people.

By the way, this "brick" also has a name-"Big Brother". Its inventor is no stranger to us-Motorola.

Wired telephone was born in bell laboratory, and the first generation wireless communication system, as a supplement to wired telephone, was also born in the United States.

There are two reasons: on the one hand, at that time, the center of world communication technology was in the United States, and other countries did not enter this field at all; On the other hand, technology is hereditary. Wireless communication system and wired communication system still have the same or similar technology in many aspects, except that wireless access and wired access have the so-called "last mile" difference, and other aspects are very close.

At that time, there were Lucent and Motorola in the United States, Nortel Network in Canada, and the three communication equipment manufacturers in North America jointly established the dominant position of North America in the world communication rivers and lakes.

2G

The first generation wireless communication system, like the wired communication system at that time, was based on analog signals.

Analog signals have many shortcomings, such as the signal is easily disturbed, the voice quality is low, and the coverage is not wide enough. There is also the problem of "crosstalk" that many people have encountered when making fixed calls, that is, you hear the voice of someone else's telephone line instead of the voice of the person you are talking to.

This brings new challenges and opportunities to the communication industry. As a result, the second generation communication system appeared, which is the wireless system of the first mobile phone that we are familiar with and used by many people, which is the so-called 2G.

The first mobile phones used by our generation, whether Nokia, Ericsson or Siemens, were mostly based on GSM. GSM is the abbreviation of global mobile communication system, and it is a digital mobile communication standard formulated by ETSI, a European telecommunications standards organization.

At that time, communication technology in Europe took advantage of this opportunity to rise. At the same time as the rise, new players appeared. Ericsson, Nokia and Siemens not only launched their own mobile terminals, but also launched their own wireless communication systems, becoming new communication equipment suppliers. Their appearance broke the situation that North America unified rivers and lakes.

Different from Europeans, Americans take another road, called CDMA, and its base station can support 1600 users at most, nearly twice as many as TDMA. The characteristic of CDMA is that although users are in the same frequency band, the characteristics of each user, that is, the code, are different. Users send and receive information through their own unique code, that is, an identification.

Compared with 1G, the biggest breakthrough of 2G is the evolution from analog transmission to digital transmission, which is a digital revolution of communication.

third generation

When people make phone calls and send text messages on 2G mobile phones, they will feel very cool at first. After a long time, new problems come. This problem is brought by the Internet and promoted by some ISPs, that is, information service providers.

Internet provides convenience for people to obtain information. It is a traditional way to get information from the Internet through PC. Just like the early telephone, after all, PC is not convenient to carry. People still want to be able to get information anytime and anywhere like calling.

People's desire for mobile internet access is so urgent that there will be supply when there is demand, so 2.5G appeared. At this time, it is still divided into two camps: Europe and North America. Europe is based on GSM evolution, GPRS and general packet radio technology, while North America is based on CDMA evolution.

In the final analysis, 2G provides telephone voice service, while 2.5G makes mobile communication enter a new field, that is, data service. Simply put, it is surfing the internet. Data on the Internet can be divided into three types: text, pictures and videos. The bandwidth of 2.5G can already be used to read text and small pictures and download music on mobile phones.

People's endless pursuit of information demand has promoted the further development of mobile communication technology. The slow bandwidth of 2.5G limits viewing information. For example, you can't get a bigger picture, let alone a video.

Therefore, 3G is ready to come out.

In the 3G era, besides Europe and North America, a new player has appeared, and that is China. Europe is WCDMA and North America is CDMA2000. China made the wisest decision at this time and decided to develop its own standard-TD-SCDMA.

With China's entry, the pattern of wireless communication has changed again: 1G era-one dominant company, 2G era-two powerful companies confront each other, and 3G era-three pillars stand upright.

China's research and development of TD-SCDMA is equivalent to "two bombs and one satellite" in the communication field. From then on, we are no longer subject to people in technical standards.

Compared with 2.5G, 3G is faster, wider in bandwidth, and more importantly, users have a better online experience.

Its more important significance lies in opening the era of mobile Internet. Smartphones and 3G networks have become two huge engines, which have promoted a new wave of mobile Internet. From mobile phones to applications, it has spread rapidly around the world.

This has not only changed the way people communicate, but also changed people's way of life. People's clothing, food, housing and transportation are gradually inseparable from mobile phones. The function of mobile phone is no longer to make phone calls and watch news, but to transition to playing WeChat Weibo, paying by mobile phone and taking a taxi. ...

the 4th generation mobile communication technology

Compared with 2.5G, the rate of 3G network has been greatly improved, reaching14.4 Mbps (theoretical downlink rate of WCDMA), which can meet the basic multimedia service requirements.

However, people's pursuit of network speed is endless, and people are more eager to fly. Once people go to a place without WiFi but with 3G, they will always compare with WiFi intentionally or unintentionally, hoping that the mobile network can have the speed of WiFi.

So, 4G came.

If 3G is the take-off stage of China's wireless communication technology, then when it comes to 4G, China has entered a stage of all-round development, both for operators and equipment suppliers.

Compared with 3G and 4G networks, the specifications are unprecedentedly unified, and the LTE/LTE-Advanced standard introduced by 3GPP is adopted all over the world. Under the latest standards, the key technology of air interface has abandoned CDMA and adopted OFDM, that is, orthogonal frequency division multiplexing, translated from Chinese. This is a completely different technology from the 3G era.

4G has achieved a faster Internet access speed, which basically meets everyone's Internet access needs. People can use the Internet at will, including playing online games, watching videos, watching live broadcasts, and brushing short videos with their mobile phones, which completely achieves a WiFi-like experience.

From the past 1G to 4G, we can see four changes:

First, technological changes, from analog to digital, from voice to data, from narrowband to broadband, and then to ultra-wideband.

The second is the change of people's mobile phones, from mobile phones to 2G mobile phones to smart phones.

Third, lifestyle changes, from making phone calls to sending text messages, to watching news and chatting online, and then watching videos, people can't live without mobile phones all the time.

Fourth, China has changed in the world map, from the leading position in North America to the top two countries in Europe and America, and then to China, and its voice in the communication field is getting bigger and bigger. China achieved a comprehensive breakthrough from system to terminal and occupied it. In the map of world communication, China has occupied a place.

5G

If 4G only changed us personally, then the influence of 5G is much greater. The application of 5G can be divided into three parts, one is the improvement of the existing 4G experience, the other is the application like autonomous driving, VR/AR, and more importantly, the Internet of Things.

Some people describe the speed of 5G as follows: it only takes one second to download a movie with a file size of1g. This is a very popular explanation, very appropriate.

It is precisely because of such high speed and low latency that applications that require massive high-speed data exchange, such as autonomous driving, are possible.

The Internet of Things makes every device from public infrastructure to factories to homes can be connected, so it has a wide influence. The availability, reliability, stability and security of this network are extremely important. It involves all aspects of production and life, so its status can rise to the height of national strategy.

Therefore, 5G has gone far beyond the influence of personal life and become an important part of national infrastructure. It is also for this reason that various countries have comprehensively promoted 5G technology.

Less than forty years of mobile communication history

It tells the history of communication.

It is also the history of social development.

It is also the history of China's rise.

1G era, blank

In the 2G era, follow

3G era, breakthrough

4G era, synchronization

5G era, leading

We are fortunate to witness this history.

We are grateful to participate in this counterattack.

Central enterprises will join hands with all enterprises in China.

In more and more fields

Realize the counterattack of China people!

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