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无线电定位技术有着广泛的应用前景 ,传统的无线电定位技术主要有根据来波方向和时差定位两种。在移动通信网中通过增加网络功能单元和信令流程可以实现定位业务 ,但由于移动通信环境的影响 ,在移动通信网中实现移动终端的精确定位尚有许多技术难点亟待解决。通过移动通信网提供定位业务目前已得到了欧洲电信标准化组织和美国电信电子行业协会和世界各大通信公司的广泛重视。
Radio positioning technology has a wide range of applications, the traditional radio positioning technology are based mainly on the direction of arrival and time lag positioning of two. In the mobile communication network, the positioning service can be realized by adding network functional units and signaling flows. However, due to the influence of the mobile communication environment, there are still many technical difficulties to be solved in the mobile communication network to realize the precise positioning of the mobile terminal. The provision of positioning services through the mobile communications network has now gained the widespread attention of the European Telecommunications Standards Institute and the Telecommunications Industry Association of the United States and the world’s major telecommunications companies.