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应用科学学报 >

2012 , Vol. 30 >Issue 1: 14 - 18

DOI: https://doi.org/10.3969/j.issn.0255-8297.2012.01.003

通信工程

一种LTE系统的主同步信号快速捕获方法

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  • 1. 中国科学院上海微系统与信息技术研究所，上海200050
    2. 上海无线通信研究中心，上海200335
作者简介：杨秀梅，博士生，研究方向：LTE物理层关键技术，E-mail: xiumei.yang@shrcwc.org

收稿日期: 2011-01-21

  修回日期: 2011-06-17

  网络出版日期: 2012-01-30

基金资助

国家科技重大专项基金(No.2009ZX03002-003-004); 国家科技重大专项基金(No.2010ZX03003-001)； 上海市自然科学基金(No.09ZR1430500)资助

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Fast Acquisition of Primary Synchronization Signal in LTE Systems

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  • 1. Shanghai Institute of Microsystem and Information Technology, Chinese Academy Sciences, Shanghai 200050, China
    2. Shanghai Research Center for Wireless Communications, Shanghai 200335, China

Received date: 2011-01-21

  Revised date: 2011-06-17

  Online published: 2012-01-30

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摘要

摘要： 针对长期演进（long term evolution，LTE）系统小区边缘用户，提出一种主同步信号的快速捕获方法.
该方法首先在LTE网络可用频段内接收信号，然后对接收到的信号进行自身滑动镜像相关. 检测到明显峰值后，在
峰值点进行主同步信号的本地相关，从而获取主同步信号索引. 分析和仿真结果表明，该方法的运算复杂度低，适
用于小区间保持时间同步的多小区网络，尤其是小区边缘用户主同步信号的快速检测.

关键词： 长期演进; 主同步信号; 滑动镜像相关

本文引用格式

杨秀梅1;2， 熊勇1;2， 贾国庆1;2 . 一种LTE系统的主同步信号快速捕获方法[J]. 应用科学学报, 2012 , 30(1) : 14 -18 . DOI: 10.3969/j.issn.0255-8297.2012.01.003

Abstract

A method is proposed to fast acquire primary synchronization signal (PSS) for cell edge users in
long term evolution (LTE) systems. In this method, signals are received in the configured bandwidths of LTE
networks, and the sliding mirror is then correlated. The PSS index is achieved from the local PSS correlation
at peak position after a clear peak value is observed. Analysis and simulation results show that it is applicable
especially to cell edge users in synchronized multi-cell networks to fast acquire PSS with low complexity.
Keywords:

Key words： long term evolution (LTE); primary synchronization signal (PSS); sliding mirror correlation

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