Mobile radio access network comprising a plurality of radio cells, the radio cells comprising at least a first cell type (21, 23) of radio cells and a second cell type of radio cells, the first cell type (21, 23) of radio cells being at least one Closed Subscriber Group cell, CSG-cell, or at least one hybrid cell and the second cell type radio cells being at least one open cell, non-CSG-cell, wherein the mobile radio access network comprises a charging unit, characterised in that the mobile radio access network is provided such that at least for one subscriber out of a plurality of subscribers (30, 40) of the mobile radio access network, the charging unit receives a cell information dependent on whether the at least one subscriber has entered or left or accessed a radio cell of the first cell type (21, 23), wherein the plurality of radio cells of the mobile radio access network comprise at least one Closed Subscriber Group cell, CSG-cell, and/or at least one hybrid cell, wherein the transmission of the cell information to the charging unit occurs or not at the at least one subscriber entering or leaving or accessing the Closed Subscriber Group cell, CSG-cell, or the hybrid cell, wherein the transmission of the cell information depends on the at least one subscriber entering or leaving or accessing either the Closed Subscriber Group cell, CSG-cell, or the Closed Subscriber Group part, CSG part, of the hybrid cell or the open part of the hybrid cell, wherein the mobile radio access network comprises a database, wherein -- the database comprises a first information, a third information and a fourth information, wherein the first information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the Closed Subscriber Group cell, CSG-cell,, wherein the third information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the Closed Subscriber Group part, CSG part, of the hybrid cell, and wherein the fourth information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the open part of the hybrid cell or -- the database comprises a third information and a fourth information, wherein the third information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the Closed Subscriber Group part, CSG part, of the hybrid cell, and wherein the fourth information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the open part of the hybrid cell. -- the database comprises a first information, a third information and a fourth information, wherein the first information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the Closed Subscriber Group cell, CSG-cell,, wherein the third information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the Closed Subscriber Group part, CSG part, of the hybrid cell, and wherein the fourth information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the open part of the hybrid cell or -- the database comprises a third information and a fourth information, wherein the third information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the Closed Subscriber Group part, CSG part, of the hybrid cell, and wherein the fourth information indicates whether the cell information is to be transmitted or not to the charging unit in case that the at least one subscriber enters or leaves or accesses the open part of the hybrid cell.