DS/WCDMA中小区的同步捕获

Synchronization Acquisition of Cells in DS/WCDMA

同步是扩频通信中的关键问题 ,它一般分为同步捕获和同步跟踪两个阶段。 3GPP ( 3rdGenerationProjectPartner)标准中采用了具有良好非周期相关特性的序列集 ,快速哈达玛变换 (FHT)等技术来实现快速同步捕获 。

As a significant problem in spread spectrum system design the synchronization can be generally divided into two phases:acquisition and tracking.In order to achieve fast initial acquisition of cells,many techniques such as using sequences with a good aperiodic correlation property,fast Hadamard transformation,noncoherent integration etc.are proposed in the standards of 3GPP (3rd Generation Project Partner).This article explains the principle of the initial synchronization(acquisition) of cells in DS/WCDMA and presents a concrete method of its realization.