Small Cell网络的接入方法研究

Study on Cell Association of Small Cell Network

针对小基站(small cell)与传统蜂窝混合网络的接入问题,文章对两种基于参考信号接收质量(RSRQ:Reference Signal Receiving Quality)的接入方法进行研究。通过计算机仿真的方法对这两种接入方法在不同的场景中的接入情况进行分析和比较。结果表明,在small cell均匀分布和群簇分布的场景下,分别采用相对门限及绝对门限的接入方法能获得更好的总体性能,即在起到用户分流作用的同时使得宏基站和small cell中的用户都有着较高的数据速率。

In the light of the access aspect of a heterogeneous network of small cell and macro cellular network,this paper researches on two access methods based on the measure of the RSRQ.And the it analyses and compares the performances of the two access methods in different scenarios through computer simulation.The results indicate that adopting the relative threshold access method in the scenario where small cell are unifromly distributed,while the absolute threshold for the clustered scenario,will lead to a better overall performance,meaning that users are offloaded to the small cells reasonably and both macro and small cells＇ users can reach a higher data rate.