中文摘要：

在无线通信领域，由于晶振的精度、无线信道的多普勒效应等诸多因素的存在，使得接收端产生的载波频率和发射端的载波频率有一定的频差，从而影响数据的正常接收。本文提出一种LTE系统中基于Cell RS的频偏估计设计，该方法可以根据实际场景在频偏估计精度和频偏估计范围之间灵活选择，不但解决了高速场景下频偏估计范围小的问题，而且设计易于工程实现，在无线通信领域有很强的应用价值。

英文摘要：

In wireless communication field, carrier frequency difference always exists between the TX and RX because of the frequency accuracy of crystal oscillator、doppler effect and so on. It will result in data error for RX. This paper proposes a method of carrier frequency difference estimation by cell RS for LTE system, which has a flexible selection between the accuracy and the range of frequency difference. It not only resolves the problem of small rang of the frequency difference under the fast-moving scenario, but also easy for engineering implementation. So it has a widely application in wireless communication field.