基于GSM Refarming频率重耕的GSM-HI升级技术方案研究被引量：1

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摘要 TD-LTE网络为我国自主研发的第四代移动通信技术,该网络制式有很多的技术优势:OFDMA正交频分复用、TDMA上下行共用同一频段通过时间区分、简单的网络架构(减少RNC)、MIMO技术提升网络容量等等,但同时TDMA时分系统存在的系统固有"劣势":TD-LTE无线帧结构复杂(存在上行导频时隙UPPTS/特殊间隔GP/下行导频时隙DWPTS)、超远干扰、大气波导干扰(海拔高的基站辐射距离超过了GP的保护间隔),FDD-LTE较TDD-LTE技术而言,覆盖的距离更远且在小区边缘获得更好的SINR和RSRP电平值。文章介绍了基于GSM Refarming频率重耕的GSMHI技术试验(FDD-LTE),重点概述了如何在900和1800频段频率Refarming腾挪频点和GSM设备硬件升级改造方案。

作者王宇

机构地区中国移动通信集团湖北有限公司宜昌分公司

出处《信息通信》 2017年第7期197-199,共3页 Information & Communications

关键词 GSM网络清频 GSM Refarming频率重耕 GSM-HI硬件升级改造

分类号 TN929.532 [电子电信—通信与信息系统]

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