GPS定位技术是目前移动运营商推出的移动位置服务中所采用的精度最高的定位方式，它结合了GPS定位技术及移动通信网络的优势于一身。
A-GPS is adopted by mobile operation companies as the highest accurate position way in mobile location-based service. It combined the technology of GPS and mobile communication network.
同时由于WLAN的灵活性、移动性和简单的点对点技术等有优势，使得基于WLAN的位置服务系统逐渐成为研究热点。
While the flexibility, mobility and simple point to point technologies, WLAN positioning system has gradually become a research hotspot.
随着手持设备的日益普及和基于位置服务技术的逐渐成熟，移动地图服务成为人们关注的热点。
With the development of Pocket PC and technique of LBS services, mobile map services is becoming the hot topic in the world.
把这种新匿名技术应用于移动互联网络的位置服务(LBS)上，提出了分层匿名用户标识的方法，实现了LBS中的位置隐私保护。
Using this new anonymous technology into the mobile Internet Location-Based Services (LBS), this paper realizes the privacy protection by the methods of user identification anonymous.
把这种新匿名技术应用于移动互联网络的位置服务(LBS)上，提出了分层匿名用户标识的方法，实现了LBS中的位置隐私保护。
Using this new anonymous technology into the mobile Internet Location-Based Services (LBS), this paper realizes the privacy protection by the methods of user identification anonymous.
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