Mobile communication is the communication between mobile objects, or between mobile objects and fixed objects. The moving body can be a person, or it can be a car, a train, a ship, a radio, and other objects in a moving state.

Mobile communication is a modern technology for wireless communication, which is one of the important achievements of the development of electronic computers and mobile Internet. After the development of the first generation, the second generation, the third generation and the fourth generation, the mobile communication technology has entered the era of the fifth generation development (5G mobile communication technology), which is one of the main technologies changing the world at present.
Modern mobile communication technology can be mainly divided into low frequency, medium frequency, high frequency, very high frequency and ultra-high frequency frequency bands, in these frequency bands, technicians can use mobile station technology, base station technology, mobile switching technology, the terminal equipment in the mobile communication network to connect to meet people's mobile communication needs. From the analog mobile communication system, digital cellular communication system, mobile multimedia communication system, to the current high-speed mobile communication system, the speed of mobile communication technology continues to increase, the delay and error phenomenon is reduced, and the stability and reliability of the technology continue to improve, providing a variety of flexible communication methods for people's production and life.
In the past half century, the development of mobile communication has had a profound impact on people's life, production, work, entertainment and even politics, economy and culture. 30 years ago, the fantasy of drones, smart homes, online video, online shopping and so on have been realized. Mobile communication technology has experienced analog transmission, digital voice transmission, Internet communication, personal communication, a new generation of wireless mobile communication five stages of development.