Patent attributes
A communication system is presented in which a base station operates a first cell using a first component carrier and a second cell using a second component carrier. A control channel and reference signals of a first type are provided using the first component carrier. The control channel and the reference signals of the first type are not provided, and reference signals of a second type are provided, using the second component carrier. The base station determines from results of measurements performed on reference signals of the second type whether or not the mobile communication device is within an area covered by said second cell and, if it is, transmits cell configuration information to the mobile communication device.