The first generation of personal mobile communication adopts analog technology and belongs to cellular analog mobile communication.

1. The first generation mobile communication technology (1G) refers to the original analog and pure voice cellular telephone standard, which was formulated in the 1980s.

Nordic Mobile Phone (NMT) is such a standard, which has been applied in Nordic countries, Eastern Europe and Russia. Others include Advanced Mobile Phone System (AMPS) in the United States, Total Access Communication System (TACS) in Britain, JTAGS in Japan, C-Netz in West Germany, Radiocom 2000 in France and RTMI in Italy. In many places, analog cellular services are being phased out.

Second, the first generation mobile communication system is mainly used to provide analog voice services.

1976, marty cooper, an engineer from Motorola, USA, applied radio to mobile phones for the first time.

In the same year, the International Radio Conference approved the frequency allocation scheme of 800/900 MHz band for mobile phones.

Later, until the mid-1980s, many countries began to build the first generation mobile communication systems (1G, 1st generation) based on frequency division multiple access (FDMA) and analog modulation technology.

When it comes to the first generation of mobile communication systems, we can't help but mention the famous Bell Laboratories.

1At the end of 978, bell laboratory successfully developed the world's first mobile cellular phone system-Advanced Mobile Phone System (AMPS).

Five years later, the system was officially put into commercial use in Chicago, and was quickly popularized in the United States, achieving great success.

At the same time, not to be outdone, European countries have established their first generation mobile communication systems.

Sweden and other four Nordic countries have successfully developed NMT-450 mobile communication network and put it into use in 1980.

The Federal Republic of Germany completed C-NETZ in 1984;

In Britain, 1985 developed a total access communication system (TACS) with a frequency band of 900MHz.

Among various 1G systems, the AMPS mobile communication system in the United States is the most widely used in the world. It has been operated in more than 72 countries and regions, and it is still used in some places until 1997. At the same time, nearly 30 countries and regions have adopted the British TACS 1G system. These two mobile communication systems are the most influential 1G systems in the world.

China's first generation analog mobile communication system was put into use in the 6th National Games of Guangdong Province on June198718, and was officially commercialized, using the British TACS system.

From China Telecom 1987 1 1 to the end of February 20001,China Mobile closed the analog mobile communication network. 1G system has been used in China for 14 years, with the highest number of users reaching 6.6 million. Nowadays, the mobile phone, a brick-like handheld terminal in the 1G era, has become a memory of many people.