Location-based services provide two-way communication and interaction. LBS services are information services available to mobile devices via the mobile network and use the possibilities of location of a mobile device. There is a wide range of different services based on the user's location. The steady increase in the number of different applications and opportunities leads to a wide area of application of LBS services. Determining the location is the heart of any location-based services and LBS quality of services is principally engaged in the performance of location measurement, including errors in determining the location, methods of determining the location and the response time one of location sensors or a combination of them. Te quality of service has been identified as one of the major challenges in the development of LBS. Positioning and positioning infrastructure can be classified based on different criteria: integrated and stand-alone infrastructure positioning, positioning based on the terminal and the network as well as satellite, cellular and internal infrastructure. LBS is a heterogeneous technology and contains a number of general architecture of the client division, LBS server, network, Web applications, GIS and spatial databases, cartography.