Patent ID: 8046006

Claim:
A method for carrying out paging in a cellular mobile communication system, wherein a user equipment unit (UE), which is in an idle state, is operated in a first radio cell of the mobile communication system, wherein data, which is to be transmitted to the user equipment unit, is waiting to be transmitted in a data transmission device (A) of the mobile communication system, comprising transmitting the data directly to a first radio transmission device (C alt ) supplying the first radio cell with radio signals, and sending a paging message to the user equipment unit (UE) solely by the radio transmission device (C alt ), and upon receipt of the paging message, changing the user equipment unit from the idle state to an active state, in order to receive the data from the radio transmission device (C alt ), wherein if the user equipment unit (UE) has moved during its idle state from a first radio cell to a second radio cell, and the first radio transmission device (C alt ) of the first radio cell has transmitted the paging message to the user equipment unit, but the user equipment is unreachable, the first radio transmission device in the case of unreachability of the user equipment transmits a paging request to a mobility control device (B), whereupon the mobility control device (B) transmits a paging request to all radio transmission devices (C alt , C neu ) of a specified paging area, whereupon the corresponding radio transmission devices (C alt , C neu ) transmit a paging message to the user equipment unit, whereupon the user equipment unit upon receipt of the paging message switches from the idle state to an active state, in order to receive the information from the data transmission device (A) via a second radio transmission device (C neu ) serving the second radio cell.