WCDMA网络规划中的小区呼吸效应

The Cell Breathing Effect in WCDMA Network Planning

文章详细分析了WCDMA无线网络规划中的小区呼吸效应,即小区容量与覆盖的关系:当小区负荷增大时,容量增大,链路所需要的干扰余量增大,小区覆盖范围变小;当小区负荷减小时,容量减小,链路所需要的干扰余量减小,小区覆盖范围变大。并用MATLAB软件仿真,最后提出了小区呼吸效应对WCDMA网络规划的影响。通过此项研究可以更好地规划WCDMA无线网络,节省投资成本,更有效地利用系统资源。

In this paper, the cell breathing effect in WCDMA radio network planning is analyzed in detail. That is the relation of capacity and coverage： when the cell load turns larger, the capacity turns larger, the interference margin of the link turns larger too, so the cell coverage turns smaller; when the cell load turns smaller, the capacity turns smaller, the interference margin of the link turns smaller too, so the cell coverage turns larger. Finally it is simulated with MATLAB software, and the impact of cell breathing effect on WCDMA radio network planning is proposed. Through this research, we can program the WCDMA radio network for better, save the cost of investment and make use of the resource of system more effectively.