Mobile positioning in CDMA cellular networks

Mobile positioning in cellular networks will provide several services such as, locating stolen mobiles, emergency calls, network self optimisation, different billing tariffs depending on where the call is originated and many more. The IS-95 2/sup nd/ generation digital code division multiple access (CDMA) cellular standard has potential to accommodate mobile positioning in its architecture. Moreover, on the eve of the 3/sup rd/ generation (3G) wireless network standardization, required steps must be taken for the implementation of mobile positioning. In this paper, mobile positioning in CDMA cellular networks has been discussed, the simulation and the measurement results using standard CDMA mobile phones, are presented. The purpose of this study is to analyse the accuracy of mobile positioning using standard CDMA mobile phones. Positioning calculations were performed in the mobile station using the CDMA forward link channels in order to provide total privacy. This technique can also be incorporated in the 3G WCDMA networks.