摘要
4G是我国通信行业发展的必然趋向,当前的新兴LTE技术是通向4G项目的大门,本形象的称为准4G和3.9G。LTE在技术方面,在3G基础上改善了空中接口这一关键技术,实现了可以在20MHz频谱带宽下能够提供下行100Mbit/s与上行50Mbit/s的峰值速率;在服务方面,可为用户提供综合多样化的服务内容,即使用户身处小区边缘也不会再受接受通信信号接受困难的影响,则是可实现真正意义上的全球漫游,使得移动用户一直在线的梦想变为现实,甚至还支持高清电视节目的点播与播放。文章介绍了LTE的内涵,及国际、国内的发展过程及现状,同时也对影响LTE发展的几方面因素做了相关说明。
4G is the inevitable trends of China＇s communications industry.The emerging LTE technology is the key to 4G project.LTE is a key technology improved air interface based on 3G,which achieves the performance of providing downlink 100Mbit / s and uplink 50Mbit / s in a 20MHz spectrum bandwidth;in services,it can provide comprehensive and diversified services,even if the user is at the edge of housing estate,he no longer be impacted by the weak signal.It achieves the truly global roaming,and makes the dream of online become true,even supports broadcast on-demand and broadcast.This paper introduces the content of LTE,and international and domestic development and the status quo,but also describes the factors influencing LTE development.
出处
《价值工程》
2012年第6期141-141,共1页
Value Engineering
