Wireless Planning Design Analysis Of WCDMA Mobile Communications Network Based On GSM/GPRS

The development of mobile communication technology can trace back to the twenties of the 20th century, mainly present the special-purpose mobile communication system of the shortwave this stage, as the development of technology is ripe that the wireless transmission, channel of mobile communication are managed and moved and exchanged,etc, such mobile communication systems as cordless telephone, wireless bleep, land honeycomb mobile communication, mobile communication of the satellite,etc. are developed in succession. 1990s, Cell mobile communication system develop the second generation of digital mobile communication system into while being the first generation of mobile communication. Europe proposes the global mobile communication system at first (GSM) ,Getting unprecedented development, already more than one hundred operators have run in the frequency band that GSM assign in the world at present. GSM can offer the cover analogous to the range to users, it is users that realize roaming in the numerous countries, called qualified " global mobile communication".GPRS (General Packet Radio Service) is a kind of new business of bearing the weight of coming out in development in existing GSM system, in a certain meaning, can think GPRS is GSM to IP and X.25 data network extension; Conversely, we can say too GPRS is the extension that Internet used in the wireless. Can realize such Internet's application as FTP, Web browser, E-mail,etc. on GPRS. GGPRS divides into groups to serve the important development that is GSM, the improvement of exchanging wirelessly through the bag and transfer rate, GPRS has opened the multimedia and moved the gate used, make mobile communication level and smooth and carry out the transition to the third generation of mobile communication.The third generation of mobile communication systematic UMTS (Universal Mobile Telecommunications System) ,By the European telecommunication standards committee (ETSI) Propose, accord with the third generation of mobile communication system standard globalized. Because of dividing frequently duplexingly (FDD)WCDMA technology,introduce in the sky in large for data speed not variable of range for interface, and wireless lower structure and independent concept of business platform that insert, make the third generation of mobile communication offer comprehensive more available wireless communication service to user.The development of mobile communication is urged by the two respects of technology, market, has put forward very high demand to the capacity, grade of service and ability of the integrated service of the network. The planning and design of the mobile network should adapt to different grade of service and business, on the basis of already there is investment to protect the operatoring, the whole network develops the business of the data in good time, such as directing against existing channel resources of China Mobile GSM900MHz, adopt radio frequency is it carry out the transition way frequently to jump, in potentiality to excavate 900MHz, is it move resource foundation, frequency band of 1800MHz and bandwidth of 10MHz to utilize fully, develop GPRS GPRS. Put forward in different service grade, gradual progress stage dividing into groups speech capacity and interference index, honeycomb of network calculate, have described it on the basis of the gradual progress goal to network development of WCDMA of GSM\GPRS network finally.This text is based on research of GSM\GPRS principle, introduce 2G network toward gradual progress of 3G network, draw systematic structure of WCDMA technology and key technology. Pass the characteristic to WCDMA wireless network, analysis and research with difference, WCDMA network planning principles and key problem of WCDMA network planning of network planning of GSM, make the mentality of designing of network planning of WCDMA, the result studied according to the network planning of WCDMA finally, propose the concrete designing requirement and realize to Jinan WCDMA network planning. Utilize artificial software to give artificial analysis result of network planning at the same time.