The Application of a Precoding Method Based on Non-Codebook in LTE Downlink Under Spatial Correlated Rice Channel

XIE Wen-wu; LIU Shou-yin

doi:10.3969/j.issn.0372-2112.2016.04.032

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The Application of a Precoding Method Based on Non-Codebook in LTE Downlink Under Spatial Correlated Rice Channel

更新时间：2025-07-16

- The Application of a Precoding Method Based on Non-Codebook in LTE Downlink Under Spatial Correlated Rice Channel
- Acta Electronica Sinica Vol. 44, Issue 4, Pages: 983-987(2016)
- 作者机构：
  
  1. 华中师范大学物理科学与技术学院,湖北,武汉,430079
  2. 上海晨思电子科技有限公司,上海,201210
  3. 华中师范大学物理科学与技术学院,湖北,武汉,430079
  4. 上海晨思电子科技有限公司,上海,201210
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2016.04.032
  CLC： TN911
- Published：2016
- 稿件说明：
移动端阅览
XIE Wen-wu, LIU Shou-yin. The Application of a Precoding Method Based on Non-Codebook in LTE Downlink Under Spatial Correlated Rice Channel[J]. Acta Electronica Sinica, 2016, 44(4): 983-987.
DOI：

XIE Wen-wu, LIU Shou-yin. The Application of a Precoding Method Based on Non-Codebook in LTE Downlink Under Spatial Correlated Rice Channel[J]. Acta Electronica Sinica, 2016, 44(4): 983-987. DOI： 10.3969/j.issn.0372-2112.2016.04.032.

摘要

本文所提出的预编码生成方法适合在TD-LTE系统中工作

包括基于信道互易性获取信道状态信息模块

能量分配模块

波束形成模块.该方法充分利用了TDD系统的信道互易性特性

获取下行信道的信道状态信息

并使用基于非码本的预编码方式来增强传输的抗干扰性能

提升小区覆盖范围.与单纯考虑无视距LOS(Line-Of-Sight)分量的衰落信道不同

本文所提出的是在接收端天线之间存在空间相关的下行MIMO系统中

针对拥有LOS分量的莱斯(Rice)信道发射机的预编码设计方案.该方案可以保证非码本预编码算法的快速收敛

且保持较低的计算复杂度.

Abstract

This paper proposed a method to generate precoding

which is applicable to the TD-LTE system.This method contains three parts:channel state information (CSI) model

energy distribute model

and beam-forming model.This scheme fully uses the character of exchanging channel for the TDD system

which can obtain the CSI of the downlink channel

and enhances the performance of anti-interference by using the precoding based on the non-codebook.Furthermore

it can enlarge the range of the serving cell.The background of this paper is LTE downlink system equipped with these spatial-correlated receive antennas

where a transmitted precoding method is designed for Rice channel with LOS.This method can keep the precoding algorithm based on non-codebook at a quick convergence speed with low calculation complexity.

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