LTE网络中部署小基站覆盖问题研究

Research on the Coverage of Small Cell Deployment in LTE Network Deployment

在LTE网络建设中,可引入小基站作为宏基站的覆盖补充和延伸,但若部署不当也会因干扰等问题而对网络整体性能造成一定的负面影响。通过在典型场景下实地搭建测试环境,重点研究了在LTE宏微协同组网架构下引入小基站对LTE网络覆盖质量所造成的影响程度,并探讨相应解决措施。测试结果表明,小基站的引入可有效提升整网覆盖质量,但也会在部分区域内因干扰而导致覆盖性能指标出现一定程度的下降,故在建设中应精确规划部署小基站,以降低其对网络覆盖性能造成的不利影响。

In LTE network construction, small cell can be introduced to be the supplement and extension of macro base station. However, the improper deployment of small cell would have a negative impact on overall network performance due to interference. After building testing environment in typical scenarios, the impact of small cell on LTE network coverage quality under LTE macro-micro collaborative networking architecture was investigated in depth and corresponding solution was discussed. Test results demonstrate that small cell can effectively enhances overall network coverage quality, but local coverage performance deteriorates due to the interference in some regions. Therefore, the planning and deployment of small cell should be accurate to mitigate the adverse effect to network coverage quality.