US Patent 8718619 Predicting presence of a mobile user equipment

A method, system, user equipment and computer program for predicting presence of a mobile user equipment, that includes: determining a set of time-distributed locations of a number of mutually associated mobile user equipments; calculating an aggregated location as a function of a location distribution of the set of locations; for each mobile user equipment, predicting a probability that the mobile user equipment will be present at the aggregated location at a future time; and initiating sending, to any of the mobile user equipments, a message indicating that another mobile user equipment of the mobile user equipments is predicted to be present at the aggregated location at a specific future time.