一种LTE异构网络下的移动性优化方法  

Mobility Optimization in LTE Heterogeneous Network

作　　者：陈国平[1,2] 杜庆波[1] 

机构地区：[1]南京信息职业技术学院,南京210023 [2]中兴通讯学院移动通信实验室,深圳518057

出　　处：《电信科学》2014年第10期151-155,172,共6页Telecommunications Science

基　　金：江苏省第四期"333高层次人才培训工程"科研基金资助项目(No.BRA2011117);中兴通讯学院科研基金立项课题基金资助项目(No.YK20130503)

摘　　要：长期演进(LTE)网络是3GPP定义的先进移动网络系统,相比现有的2G和3G网络,LTE网络的用户(UE)更加密集、站间距更小、更多的小基站加入系统,从而使UE移动性管理面临更大的挑战。为此,提出了一种新型UE切换方法。仿真结果显示,新方法能够很好地解决密集LTE异构网络中UE切换失败率高的问题,性能优化显著。The long term evolution （LTE） network is an advanced mobile network defined in 3GPP. The nodedensity of LTE network is higher than traditional 2G and 3G mobile networks, because not only the inter-sectordistance is smaller, but also more and more small cells are integrated into the network. The mobility managementhas become a challenge in a dense heterogeneous network. An advanced handover mechanism to solve the highhandover failure rate problem in LTE heterogeneous network （HetNet） was proposed. Simulation results show that theproposed mechanism increases the handover performance in HetNet.

关 键 词：LTE 切换 异构网络 测量 

分 类 号：TN929.5[电子电信—通信与信息系统]