高速移动环境下TD-SCDMA系统组网方案研究

TD-SCDMA System Network Organization Research under High-speed Mobile Environment

本文针对TD-SCDMA网络高速移动环境下的组网问题,分析了高速移动对系统性能可能产生的各类影响,包括多普勒频移对解调性能影响、智能天线赋形、功率控制和同步、网络切换、重选及车体穿透损耗的影响;结合频偏校正算法,给出了满足覆盖质量和切换要求的基站布局原则,并对专网和大网两种组网方式进行了分析比较。

This paper carries out the analysis of potential influences of high-speed mobile on TD-SCDMA network organization, including the doppler frequency shift, smart antenna, power control and synchronization, network switching and re-elected, and train penetration loss. In conjunction with the frequency shift correction algorithm, base stations layout principles are given to meet the quality of coverage and the requirements of switching. At the same time the two networking methods of private and public network are analyzed and compared.