Implementation of DSP-based FDD-LTE PUSCH frequency offset estimation

Wu Jianhai1; Li Hanbing1; Guan Bao1

doi:10.13756/j.gtxyj.2012.02.021

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Implementation of DSP-based FDD-LTE PUSCH frequency offset estimation

- Implementation of DSP-based FDD-LTE PUSCH frequency offset estimation
- Study on Optical communication Issue 2, Pages: 64-66(2012)
- 作者机构：
  
  1. 光纤通信技术和网络国家重点实验室
  2. 武汉虹信通信技术有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2012.02.021
  CLC： TN929.5
- Published：2012，
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[1]吴舰海,李汉兵,管鲍.基于DSP的FDD-LTE PUSCH频偏估计的实现[J].光通信研究,2012(02):64-66.

Wu Jianhai1, Li Hanbing1, Guan Bao1. Implementation of DSP-based FDD-LTE PUSCH frequency offset estimation. [J]. (2):64-66(2012)
[1]吴舰海,李汉兵,管鲍.基于DSP的FDD-LTE PUSCH频偏估计的实现[J].光通信研究,2012(02):64-66. DOI： 10.13756/j.gtxyj.2012.02.021.

Wu Jianhai1, Li Hanbing1, Guan Bao1. Implementation of DSP-based FDD-LTE PUSCH frequency offset estimation. [J]. (2):64-66(2012) DOI： 10.13756/j.gtxyj.2012.02.021.

摘要

频偏估计是FDD-LTE（频分双工长期演进）系统接收端的重要模块之一。文章介绍了FDD-LTE系统上行信道解调参考信号的产生原理以及时频位置映射方式

通过对硬件性能的评估

采用基于导频的残留频偏估计算法提出了一种PUSCH（物理上行共享信道）频偏估计实现方案。通过分析其实现复杂度和定点运算误差

表明该方案可以满足实时处理的要求

并具有较好的性能。

Abstract

Frequency offset estimation is one of the major modules of the receiving end in a Frequency Division Duplex-Long Term Evolution（FDD-LTE） system.This paper introduces the generation principle of the uplink channel demodulation reference signals and the way of their time-frequency location mapping.On the basis of the hardware performance estimation

it presents an implementation scheme for the Physical Uplink Shared Channel（PUSCH） frequency estimation by using the pilot-frequency-based residual frequency offset estimation algorithm.The analysis of the complexity of its implementation and the fixed-point computation errors shows that this scheme has fairly good performance and can satisfy the requirements of real-time processing.

关键词

解调参考信号频分双工长期演进频偏估计数字信号处理

Keywords

demodulation reference signalFDD-LTEfrequency offset estimationDSP

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