A method of distributing system information to one or more mobile terminals in a cellular telecommunications network, the cellular telecommunications network comprising at least one first transceiver providing at least one signaling cell serving a first coverage area, wherein the signaling cell is operative to exchange a signaling message with the one or more mobile terminals, and cellular telecommunications network further comprising one or more second transceivers, each of the second transceivers providing a data cell such as to provide one or more data cells associated with the at least one signaling cell, wherein each one of the one or more data cells serves a respective partial coverage area covering at least a part of the first coverage area, and wherein the one or more data cells enable data communication with the one or more mobile terminals, the method comprising:
- switching each of the one or more data cells, by the second transceiver associated with the respective data cell, for operating said data cell in either an active communication mode or an inactive communication mode, wherein for performing the switching, the second transceiver determines:
- whether there is at least one mobile terminal of the one or more mobile terminals present in the partial coverage area of the data cell associated with the respective second transceiver and whether said at least one mobile terminal is operating in an active terminal mode;
- whether said at least one mobile terminal is not served by other data cells than the data cell associated with the respective second transceiver;
- and
- wherein the second transceiver performs the switching based on the determination;
- wherein the method further comprises;
- determining at least one of a number or identity of the data cells that are operated in or will be switched into the active communication mode;
- and
- transmitting, by the first transceiver of the at least one signaling cell, a common indicator channel and one or more system information blocks, the common indicator channel including one or more pointers to said one or more system information blocks, wherein a size of the common indicator channel is based on the determined number or identity of the data cells that are operated in or will be switched into the active communication mode, and wherein each one of said one or more system information blocks including system information for at least one of the one or more data cells that operates in the active communication mode.