Countercurrent 1982

Chapter 2101 2G Communication Era
Duan Yun had thought of researching 2G communication networks since the first time he bought a mobile phone several years ago. The retired professors of Shanxi University of Science and Technology are only college students who have just graduated, and because of different majors, it is basically unrealistic for Duan Yun to rely on these people to study the extremely difficult 2G communication network.

As early as the mid-80s, West Germany, France and Italy signed an agreement to jointly develop GSM. In Paris, GSM made eight suggestions to European countries and major companies after extensive research and experiments.Field experiments were carried out for the wireless system, and the main wireless transmission technologies were selected.

At that time, Duan Yun had just arrived in Shenzhen not long ago, and his electronics factory could only produce the simplest electronic products, and he did not have enough technical strength to touch this industry.

From that time on, the Europeans went ahead of the Americans and started the research and development of the 2G communication network. Until 1990, the first demonstration system was opened in Europe, and the first 2G call was made by an operator in Finland. At the same time, GSM was renamed as Global System for Mobile Communications, and mobile communications entered the second generation of digital mobile communications systems.

In the same year, the 2G network completed the specification of public European telecommunications services in the 1800m Hz frequency band. In 1992, the first 2G operating network started operating in Finland, and the first international roaming agreement was signed by Finnish Telecom and Vodafone UK. In December 1992, there were 12 12G networks operating in seven countries, most European operators started commercial business, and the first SMS was successfully sent.

At this time, Tianyin Group has developed into the largest private enterprise in China. Its capital and technical strength are the strongest in the country, but it has missed the era of 2G network development. In addition, the research and development of this kind of digital communication network is often not a company. It can be completed. The scientific and technological strength of Europe is not far behind that of the United States, but it still requires the joint efforts of more than a dozen European countries to develop it. It can be seen that the threshold of communication technology in Zhejiang is very high.

Since it is unable to catch up with the express train of research and development of 2G communication systems, Tianyin Group, which now has sufficient funds and considerable research and development capabilities, will naturally consider the research and development of 3G communication systems. There are more resources and manpower to work on this project, so Duan Yun planned to cooperate with ZTE and Huawei, two holding companies, to jointly develop the research and development of this project.

In addition, the mobile phone that Motorola showed this time supports the 2G communication system, which also reminded Duan Yun that he needs to lay out the research and development project of smartphones in advance.

In fact, there are currently no 2G communication network operators in China. Until the beginning of this year, 43 69G networks in 2 countries and regions have been operating in the world, with more than 100 operator members and more than 1000 million users.

In my previous life, China and Russia only started to operate 1996G communication networks in 2, and 8k SIM cards and prepaid 2G phone cards were launched in my childhood. At that time, there were 94 network operators in 167 countries and regions around the world. , with more than 5000 million users.

In Duan Yun’s impression, it was not until around 2001 that 2G communication mobile phones began to be popularized in China. At that time, the mobile phones were not smart, and the screen was a small black and white screen. , which can display some date and time, has caller ID function, and can also receive text messages.

At that time, Duan Yun was still in college, and his parents spent thousands of dollars to buy him a mobile phone. The first mobile phone he used was quite fashionable, and there was a small game called Snake in it. It is not as advanced as the later big-screen smartphones, but it still brings a lot of fun to Duan Yun.

But now Duan Yun still uses the big mobile phone he bought a few years ago. In fact, he still has two satellite communication phones, one in his car, and the other is mainly installed in his private jet. Gulfstream specially customized it for Duan Yun, but because it is not convenient to carry, Duan Yun often uses the big brother he bought in the early years.

The mobile phone uses a 1G cellular network, which is not bad in Guangdong Province. Several major cities in China also have a 1G network, but if you go to some remote areas, there is no signal at all. Duan Yun is very helpless about this.

So after seeing the mobile phone that supports 2G communication network displayed by Motorola this time, he has a strong desire to buy it, but this mobile phone has not been officially released, and there is no 2G communication network in China, so even if he buys it back , it is simply useless in the country.

In addition, although 1996G communication network-related technologies and equipment were introduced in China in 2, the real popularization in China began in 2001. Before that, 2G communication network was only used in some provinces and big cities in China. , it is still not possible to cover a large area of ​​the country.

There is a very important reason for this, that is, the equipment of the 2G communication network is very expensive, and the equipment using the 2G communication network is still very small, mainly because of the introduction of mobile phones produced by Motorola, but the price of this mobile phone is also very expensive. The price of mobile phones is as high as 6000 yuan, and the conference calls are also surprisingly high. Therefore, Motorola’s mobile phones are affordable for a few rich people. Without the support of sufficient number of users, communication operators cannot take them back. Cost, so it is naturally impossible to popularize this technology.

In addition, in the mid-to-late 90s, landline telephones were still the main means of communication for Chinese people. Many families had their own private telephones. There were a large number of domestic public telephones. Compared with expensive mobile phones, landline phones are far more popular and economical than mobile phones.

Even in Duan Yunlai, in the next one to two years or even longer, it is impossible for his own company to develop a real smartphone, and even if it is developed, the performance and cost will hardly meet Duan Yun's expected requirements.

However, as a long-term research and development project, Duan Yun really needs to plan in advance. He wants to get a share of the 2G communication era, but it is difficult to do it with the strength of his family alone, and he does not have many resources and resources. Manpower to complete such a project alone.

So after returning from the US inspection this time, he will cooperate with ZTE, Huawei and other technology companies to jointly develop China's 2G mobile phones.

(End of this chapter)