重庆邮电大学学报（自然科学版）2012，Vol.24Issue(2)：159-163,5.DOI:10.3979/j.issn.1673-825X.2012.02.007
基于DSP的LTE TDD上行解传输预编码实现
Implementation of LTE TDD uplink transformation deprecoding based on DSP
摘要
Abstract
In the TD-LTE (time division-long term evolution) system, Located DFT-Spread OFDM has been adopted in Uplink Transmission. According to the limitation of the length of IDFT sequence by 3GPP protocol, compared with a variety of performance of DFT/IDFT algorithms by simulating, this paper adopts a method of combining FFT algorithm based on 2-N point with symbol selecting of linear interpolation by evaluation of hardware performance and implementing complexity, and proposes an implementing scheme. Firstly, conjugate every troops of the sequence after equalization, then Fast Fourier transform it by adopting algorithm based on 2-N point and selecting the symbol by linear interpolating. Implementing flow chart and the efficiency of algorithm executing are presented, and feasibility and effectiveness of the proposed scheme is verified through the analysis of implementing complexity.关键词
长期演进/传输预编码/离散傅里叶逆变换(IDFT)/DSP实现Key words
long term evolution(LTE)/transmission precoding/inverse discrete Fourier transform (IDFT)/DSP realization分类
信息技术与安全科学引用本文复制引用
李小文,彭德义,王丹..基于DSP的LTE TDD上行解传输预编码实现[J].重庆邮电大学学报（自然科学版）,2012,24(2):159-163,5.基金项目
国家科技重大专项(2009ZX3002-009) （2009ZX3002-009）
国家科技重大专项(2011 ZX03001-003-01) （2011 ZX03001-003-01）
