LTEFDD网络上行覆盖增强技术分析  

Analysis of the Uplink Coverage Enhancement Techniques for LTE FDD

作　　者：连蓉蓉 李洪波 李磊 

机构地区：[1]中国通信建设集团设计院有限公司,北京100079

出　　处：《邮电设计技术》2014年第8期57-61,共5页Designing Techniques of Posts and Telecommunications

摘　　要：在远距离覆盖场景下,由于LTE终端采用单天线发射模式,且最大发射功率较低,因而上行覆盖能力成为主要限制因素。分析了安装塔顶放大器和部署多天线2种上行覆盖增强技术,对其在LTE FDD宏基站和分布式基站方式下的覆盖增强效果进行了链路预算分析,用仿真验证2种技术对上行覆盖增强的有效性,并给出了LTE FDD上行覆盖增强建议。In the case of long-distance coverage, because of the single-antenna transmit mode and lower transmit power of LTE termi-nals, the uplink coverage become the main limitation. Uplink coverage enhancement techniques of tower mounted amplifier and multi-antenna are analyzed. In order to verify the efficiency of the two techniques, link budget and simulations are carried out in the scene of LTE FDD macro base station and distributed base station. Suggestions on LTE FDD uplink coverage en-hancement are made according to the results of the analysis.

关 键 词：长期演进 覆盖增强 上行链路 塔顶放大器 多天线 

分 类 号：TN929.5[电子电信—通信与信息系统]