LTE及其回传网解决方案综述

LTE and Its Backhaul Solution Introduction

长期演进(LTE,Long Term Evolution)是移动网络演进的下一代主流版本,将引领移动通信进入真正的宽带时代。相比现有的2G/3G网络,LTE产生了一些新的需求,从而导致其承载网解决方案相应发生较大变化。本文主要围绕LTE发展情况、对承载网的要求以及承载解决方案等内容进行介绍,并在此基础上对目前几种主流的承载方案的优劣势进行了较详细的分析和比较。

LTE（Long Term Evolution） is the leading version of next generation mobile network,it will make mobile telecommunication enter into the real broadband times.Compared with 2G/3G,LTE have some new needs,so great changes have take place in LTE backhaul solution.This article first introduces the LTE development,LTE new needs for the bear network and some backhaul network solution.In this base,it shows the advantages and disadvantages of these several solutions..