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位置服务是通过移动网络获取移动终端用户的位置信息(经纬度坐标),在电子地图平台的支持下,为用户提供相应服务的一种增值业务。在位置服务(Location-Based-Service LBS)的形成期(约从一1997年到2001年),电信运营商通过七号信令(SS7)内核中可提供移动装置位置的功能,从而提供位置服务的。这些目前已经确立的标准元素,在IS-41网络中命名为移动定位中心
Location service is a kind of value-added service that provides users with the corresponding services under the support of the electronic map platform through the mobile network to obtain the location information (longitude and latitude coordinates) of the mobile terminal users. In the formative period of Location-Based-Service LBS (from about 1997 to 2001), telecom operators provide location-based services through the SS7 core, which provides the location of mobile devices of. These currently established standard elements, named in the IS-41 network as Mobile Positioning Centers