无线通信系统公共信道干扰储备的非线性拟合估计 Nonlinear Fitting Estimation of Common Channel Interference Reserve in Wireless Communication System

本文针对无线通信系统公共信道(主要是BCH和FACH信道)链路预算随机参数估计的问题，提出采用曲线拟和的方法，先直接计算出公共信道的等效路径损耗，再计算出干扰储备的方法，最后得到实际路径损耗。同时，通过对不同的场景仿真，采用加权的方法，给出干扰消除因子和邻小区与本小区干扰之比。最后，得到小区边缘覆盖率和区域覆盖率的映射关系，可以用于无线通信网络的规划和优化。 In this paper we provide a solution to problem existing in link budget of common channel in wireless communication system, adopting curve fitting to calculate equivalent path-loss first, then get cell interference margin; last the real path-loss is obtained. During the procedure, we also select different scene to simulate interference cancellation factor and Interference Ratio between adjacent cell and local cell through weight method. At the end, we get the map of cell edge coverage and area coverage, as reference for wireless network planning and optimization.