Wenzhou Area Location Service System Based On The Cdma Network Design And Realization

Location Services (LBS - Location Based Service) is one of most promising businesses in 3G mobile data services.With the continuous development of mobile communication technology, mobile value-added services has brought a multi-level type of service to the mobile Internet, and no doubt has brought opportunities and new economic growth point to the mobile communications business. Its research and development, will have a revolutionary impact on people's living habits, thus achieve truly "anytime, anywhere" wireless life. As a country with most number of mobile phone users worldwide, China has broad prospects on location services business. It is of great significance to research on technology of location-based service system based on CDMA.This thesis is mainly researching on the location of services based on CDMA network system. With large-scale investigation and reading of a lot of materials, the thesis firstly introduced the development of application status, and describes location service system structure, and introduces the key technology used in the system. On the basis of location services and related technology theory, we design CDMA-based location service system overall, including system architecture design, GIS database design and functional design. This thesis publish electronic map by a WebGIS platform ArcIMS, and on this basis implement the location search service and bus search service, where location search service including location query and surrounding query, and bus search service including direct path query and change-path query. This thesis gives system instance. Finally, the thesis summarizes the work done, and points out the advantages and disadvantages of its existence, and discusses improvements to future.