In cellular telephony mobile equipment location-based services data transmission an application carries out measures on Base Transceiver Stations or associated cells by detecting, storing and transmitting respective information to a remote Service Center by means of messages, and a processing system, applying calculation procedures and a Base Transceiver Stations geographic position database, computes data associated with the location-based services. In the application at least one message is generated containing a set of data in compressed format, the set of data being selected from a set comprising specific data on each single message, specific data on the message set, specific data on measurements and specific data on the cells monitored by the mobile equipment. The dimensions of the specific data on the measurements generated in compressed format depend on results of the measurements made at a current instant and those obtained at an earlier time.