Location dataflow analysis of mobile objects in GSM network is performed in this project. Dataflow are analyzed in these network nodes: BTS, BSC, MSC, and HLR. During research it is analyzed how data flows changes during day period, how these changes influence network nodes. The possibilities to gather and store data about subscribers' location are explored. The main target of this project is to set guidelines for implementation of European Union directive ST15449 in real GSM networks. Statistic data about data flow types is supplied by real GSM network operator. Experiments were performed using emulator of GSM network data flows. Additional features necessary for analysis were specified and implemented. After analysis it is determined that lowest impact of location dataflow is for BSC component. It is proposed to implement any location data gathering device in BSC nodes.