Ubiquitous Terminal Assisted Positioning Prototype

Statistical terminal assisted mobile positioning is a methodology that enhances the performance of existing localization techniques, by exploiting historical measurements collected at the terminal side. We propose a unified positioning framework in which different types of network related measurements may be employed by multiple techniques to derive coarse position estimates, while filtering is applied as a post processing step to further increase accuracy. The proposed architecture is applicable to user plane location architectures, while its open and modular design allows easy integration of new positioning algorithms and post processing techniques. The implementation of this concept in ubiquitous terminal assisted positioning prototype concentrates particularly on quality of position issues and compatibility with currently available standards and communication protocols.