LOCATION VALIDATION IN CELLULAR COMMUNICATION SYSTEMS

摘要

A method for location validation of a UE in a cellular communications system uses measurements on a very low power "presence cell" in order to determine whether a UE is close to the presence cell rather than trying to provide this validation of proximity to the presence cell by accessing service through the presence cell. When the owner of the UE is performing a transaction (for example, a cash withdrawal at a cash machine) for which it is required to verify that their UE is in the immediate vicinity of where that transaction is taking place, a location validation centre may request that the UE takes specific measurements of the signal strength of a cell identified by a particular cell identifier which has been assigned to the presence cell. If the UE can detect the specified presence cell can report this to the location validation centre thereby confirming its location.