TD-HSUPA及LTE中上行峰均比问题的研究  

Research on Uplink PAR in TD-HSUPA and LTE

作　　者：李频钟[1] 杨旭[1] 王海燕[2] 

机构地区：[1]北京邮电大学 [2]工业和信息化部电信研究院通信标准研究所

出　　处：《现代电信科技》2010年第11期38-42,共5页Modern Science & Technology of Telecommunications

摘　　要：16QAM调制等技术的引进,使得TD-HSUPA与LTE的信号峰均比(PAR:Peak toAverage Ratio)大大增加,从而带来更大的带外干扰。文章讨论了峰均比抑制、功放线性化等技术,提出了解决峰均比问题的相应方案,最后通过仿真实现了功率回退技术应用在TD-HSUPA及LTE中的具体方案并得出相应结果。The PAR of TD-HSUPA and LTE signal have been greatly increased because of the introduction of 16QAM,which resulted in greater interference out of band.The article discussed the related techniques such as the PAP reduction,the linearization of power amplifier and so on,and then proposed the corresponding solutions to solve the problem of PAR.Finally the paper realized the specific solution of power de-rating applying in TD-HSUPA and LTE through simulation and obtained the results.

关 键 词：TD-HSUPA LTE 峰均比 16QAM OFDM CubicMetric 

分 类 号：TN929.5[电子电信—通信与信息系统]