Research On The WCDMA Wireless Network Planning Method

The individual communication is an important development target for modern communication network, which means people could communicate with others by any way at any time, any where. That is the ideal world what human worked for many years. The invention and development of mobile communication make people's beautiful dream come into realization.Since the appearance of the first mobile telephone at the end of the 40s of 20th century, mobile communication began to be applied on a large scale in 80's on the basis of frequency duplication in the airspace by cell structure brought forth by Bell lab US in 60's. However, the most important requirement source is the most powerful increase impetus of modern communication field—internet.The fast development of internet offers more and more abundant information and content for the users. Along with a great deal of applying portable communication equipments,such as mobile telephones, book-computers, pocket computers, PDA and automatic information equipments, wireless communication industry must have a new height of development.As the increase of the users and the appearance of new service type, users need better voice service and introduce high-speed date and multi-media service in wireless network, so the demand for increasing wireless service makes many systems beyond capability, such as D-AMPS, GSM, PDC, PHS, which cannot meet users' demand if being optimized. Therefore, a new technology system appears.Chinese government has promised in public to apply the third generation mobile communication system to improve high-speed communication operation in Olympic Games 2008. Therefore, the construction of the third mobile communication system should be bulit on an urgent basis. For the advanced and mature technology and the ability of smooth transition from GSM system, WCDMA, one of the main technologies of 3G, will be the preferred technology system by many suppliers in domestic in the terms of 3G supply and license for supply.This article shows the development and the standardized situation of the third generation mobile communication system on brief first, Compared among the...