Through the computer network we can communicate with each other, and the development of the mobile communication technology cannot do without the computer technology. The program-controlled exchange, management, billing and so on in the telecommunication network are completed using the computers. The core network of the mobile communication system depends on the support of computer technology, and many of its elements are the computers of specific functions. The mobile communication and the computer network communication are the science processing the information, with the same signal styles, and they have many of the same subject theories, and a lot of the same technologies are also used in practice.
