3G时代位置服务技术研究  

Study on Location-based Service Technology of 3G

作　　者：王春[1,2] 

机构地区：[1]中国地质大学(武汉)经济管理学院,湖北武汉430074 [2]中国联通湖北分公司,湖北武汉430048

出　　处：《通信技术》2010年第5期159-161,共3页Communications Technology

摘　　要：由于具备动态3D地图、POI实时更新、实时交通导航等2G时代不具备的特点,3G时代的位置服务必将获得广阔的应用前景。首先介绍了当前三大类主流定位技术——基于网络的定位技术、基于移动终端的定位技术和混合定位技术,并简要分析了COO、AFLT、AGPS、GPSOne等技术的优缺点;然后按被定位单元、位置服务核心子系统、位置服务业务子系统、监控和管理端四个子系统讲解了国内运营商所采纳的主流位置服务平台的体系结构,描述了PDE、MPC、LCSClient等主要网元的功能,最后以一个移动台发起的定位过程为例说明了3G时代位置服务的实现过程。For its dynamic 3D maps,POI real-time updates,real-time traffic and navigation not available for 2G era,location-based services of 3G era would be of broad application prospects.This article first gives the three categories of major positioning technology：Network-based technology,mobile terminal-based technology and hybrid technology.Then it discusses the advantages and disadvantages of such techniques as COO,AFLT,AGPS,GPSOne.Then it explains the architecture of main location-based services platform adopted by the domestic operators according to the positioned unit,core subsystem,services subsystem,monitor and management unit.It also describes PDE,MPC,LCS Client and other major functions of network elements.Finally,with the positioning process sponsored by mobile station as an example,it provides the location-based service implementation of 3G era.

关 键 词：3G 位置服务 定位实体单元 移动定位中心 

分 类 号：TN929.5[电子电信—通信与信息系统]