UMTS宏蜂窝结构与室内穿透覆盖关系研究

Research on relation between network structure of macro-cell and indoor coverage in UMTS system

在链路预算估计覆盖的基础上,分析了2GHz频段建筑物穿透损耗对宏蜂窝结构的影响;在室内外平衡覆盖的原则下,阐述了穿透损耗、覆盖可靠度与链路余量三者之间的关系,给出了穿透损耗均值的取定方法及其建议值,使UMTS网络在最佳平衡点得到合理的覆盖半径和良好的宏蜂窝结构,这种宏蜂窝室内外兼顾覆盖,最大程度上减少基站过密带来的浪费和控制困难,同时也避免了基站过少带来的容量受限,使网络性能得到充分利用。

The influence of radio transmission at 2GHz into buildings was quite obvious, the result were analyzed by for network structure of macro-cell in UMTS system. The relation of restriction between the three factors, including building penetration loss, coverage credibility and the link margin also were discussed based on the principle of equilibrium coverage in the indoor and the outdoor. How to take the expectation of building penetration loss and its＇ value were recommended were also presented in detail to obtain the much more optimum network structure of macro-cell. With the approach of equilibrium coverage, the waste of base station and the difficulty of controlling will be avoided to the utmost. On the other hand, the insufficiency of base station will also be prevented, and the network performance will be adequately exerted.