Network Planning For TD-SCDMA RAN

Along with the continuous development of modern communications technology, mobile communications system has obtained a rapid growth in recent years. The capacity of mobile communications system have been expanding quickly and higher capacity, higher coverage, higher quality are the target of the system. On the other hand, the mobile communications system is moving to the stage of combining the data services, multimedia services and intelligent services. The transmitting rate of radio data will reach the speed of 2Mb/s.The 3^rd mobile communications can provide many high quality services. Users can roam globally and can get any kind of communications in any time anywhere by mini terminals.TD-SCDMA has attracted the general users and the operation business attention as the China proprietary intellectual property rights 3G standard by its advanced technical characteristic and the richly colorful service type. In order to obtain the final outcome in 3G mobile communication , taking the initiative, China Mobile communication Limited liability company is preparing the TD-SCDMA constructing positively, this article unified the city wireless environment analysis to the Harbin mobile communication development forecasting,and used the method of theoretical calculation , based on the TD-SCDMA technology wireless network, this article has carried on a series of work such as the capacity estimate, the determination of cover scope, the quantity of station sites computation and so on. After obtaining the theoretical calculation results, also use the network planning software has conducted the computer simulation research to the results, inspected the designed system on the cover of geographic information system, the pilot frequency disturbance and the grade of service situation, has carried on the optimization and the revision to the results, finally obtained the Harbin Mobile communication Subsidiary company TD-SCDMA wireless network construction plan.Finally, the conclusions are that the sites number is 127 in urban areas of 55km²,and the amounts are also perfect in the computer simulation study. The paper has the reliability in constructing operation of 3^rd generation wireless network. It gives the solid foundation of next decision-making in network construction.