Mobile Internet (4)-Mobile Communication Network

In 1978, bell Lab scientists successfully tested the world's first cellular mobile communication system in Chicago, USA, and officially put it into commercial use in 1983. This is a major invention in the development history of mobile communication. In 10 million, China Mobile had more than 10 million users, ranging from 0 to. It took only 10 years for China Mobile phones to complete this process.
Mobile Data Communication combines mobile communication with the Internet. Mobile phone Internet access and office in the mobile status are currently very fashionable hot topics. Therefore, the construction of mobile data communication networks has become a hot topic for mobile communication operators.

Mobile Data has actually evolved since the end of 1980s and early 1990s. Mobile data can also be implemented on analog cellular networks or on digital cellular networks. The mobile data of circuit exchange is transmitted through a dedicated modem on the cellular communication network, with a speed of up to 14.4 kbps. Mobile Data Exchange by group has two technologies. One is to add a group data processing device on the simulated cellular network, and transmit data through idle voice channels at a rate of 10-13 kbps; the other is to use a specially designed group switching cellular system to transmit data, the speed is between 2.4-8 kbps. Due to technical and market restrictions, the above mobile data development speed is far slower than that of mobile phones.

Mobile communication and the Internet are the two major businesses with the fastest development, the largest market potential, and the most attractive prospects in the world today. Their growth rate is unexpected by any industry. People's demand for mobility and information has risen sharply. More and more people want to connect to the Internet at a high speed during the mobile process, get the information they need, and do what they want to do. Therefore, at the turn of the century, people's enthusiasm shifted from mobile data to mobile Internet.

In Japan, NTT DoCoMo's mobile Internet model, I-mode, has achieved remarkable results. Since the launch of I-mode in February 1999, Japan has become the world's fastest growing Internet market. According to a number published by NTT DoCoMo on December 31, March 5, 2001, the company launched more than March 4, 2001 registered users of the mobile phone Internet service "I-mode" in 20 million, achieving great success. I-mode has also attracted worldwide attention-because it is the first standard-compliant Mobile Data Service and is completely Japanese.