TD-SCDMA Radio Network Planning

Along with the mobile communication rapid development, the traditional 2nd generation communication systems has not been able to meet people's request gradually, because of the primary services of the voice and the low-speed data, but the emerging data and the multimedia service, such as Email, video transmission, document downloading and so on, will become the indispensable service composition in the mobile communication. At present, each large mobile communication operator is positively deploying the third generation mobile communication system for the arrival of the 3G time.With the research and development of the third generation mobile communication, the 3G frequency band of china has been decided, the TD-SCDMA system, which is the first global communication system standard in China, has become a focus of attention even more. As for the future of TD-SCDMA network operators. How cost-effective to build a TD-SCDMA cell net is a guarantee of high quality and low cost network operators are concerned about. Network planning purposes, generally speaking, it is in support of a variety of multimedia services and QoS to meet certain conditions have a good network capacity to meet certain requirements of wireless coverage, by adjusting capacity, coverage, Links between the balances between providing the best quality of service. As for the future of the TD-SCDMA network operators, Due to adopt TD-SCDMA is the only ITU support TDM (TDD), CDMA (C DMA) system. Both WCDMA and CDMA2000 and frequency division multiplexing (FDD) technology compared to the CDMA system than using the time division multiplexing, multi-user detection uplink, uplink time synchronization and advanced smart antenna technology TD-SCDMA network makes more flexible and complex. FDD traditional 2G and 3G CDMA systems use planning methods can not meet the demand. TD-SCDMA system must step in the planning for deep study TD-SCDMA conforms to the characteristics of the new plan.This thesis first gives a general description of Third-generation mobile communication system, introducing the developing history and technical characteristics of TD-SCDMA, and especially it is mainly devoted to introducing the core technology ofTD-SCDMA, such as the special frame structure, smart antenna technology, baton handover and so on, thus it explains the background of the study. Chapter 2 of the thesis gives a detailed description of the network planning of TD-SCDMA and draws a conclusion. In Chapter 3 of the thesis, a detailed discussion of the core issues: Network Planning Link Budget, wireless communication model and wireless capacity analysis. Chapter 4 explains TD-SCDMA's organized network scheme in typical environment and independent or mixed organized network scheme.This thesis can serve as a guide for the 3G construction work, which will soon be carried out.