Patent attributes
A system for restricting access to a mobile communications network by mobile communications devices within a restricted area includes one or more transmitters, one or more designated test mobile communications devices, and an access control entity. The access control entity is arranged to determine, using first measurement data received from one of the designated test mobile communications devices, whether one of the one or more transmitters is positioned correctly and functioning correctly for restricting the access to the mobile communications network by the mobile communications devices in the restricted area. The access control entity is further arranged to decide, based on second measurement data received from a second mobile communications device which is not a designated test mobile communications device, whether or not to provide the second mobile communication device with access to a service of the mobile communications network.
