A communication network in which access prioritisation is provided for home base stations operating using a hybrid access mode, the communication network comprising: a plurality of home base stations that operate using a hybrid access mode; a mobile communication device comprising: means for receiving (23, 25) information identifying a closed subscriber group, CSG, associated with a home base station that operates, using a hybrid access mode, in which members and non-members are allowed to access the CSG; means for identifying (27, 43) the CSG associated with said home base station from the received information; means for determining (27, 43) whether the mobile communication device is a member of the identified CSG associated with said home base station; means for generating (27, 42) a message comprising a measurement report and including an indication of whether the mobile communication device is a member of the identified CSG, in dependence on a result of a determination made by the determining means; wherein when said mobile communication device is not a member of the identified CSG but has access to the associated home base station the measurement report includes an indication that said mobile communication device is not a member of the identified CSG, and when said mobile communication device is a member of the identified CSG the measurement report includes an indication that said mobile communication device is a member of the identified CSG; and means for sending (23, 25) said generated message to a base station to which the mobile communication device is connected; a further base station via which a plurality of mobile communication devices are connectable in the communication network, the further base station comprising: means for receiving (51, 53) the generated measurement report from the mobile communication device when it has an established connection with the base station. a plurality of home base stations that operate using a hybrid access mode; a mobile communication device comprising: means for receiving (23, 25) information identifying a closed subscriber group, CSG, associated with a home base station that operates, using a hybrid access mode, in which members and non-members are allowed to access the CSG; means for identifying (27, 43) the CSG associated with said home base station from the received information; means for determining (27, 43) whether the mobile communication device is a member of the identified CSG associated with said home base station; means for generating (27, 42) a message comprising a measurement report and including an indication of whether the mobile communication device is a member of the identified CSG, in dependence on a result of a determination made by the determining means; wherein when said mobile communication device is not a member of the identified CSG but has access to the associated home base station the measurement report includes an indication that said mobile communication device is not a member of the identified CSG, and when said mobile communication device is a member of the identified CSG the measurement report includes an indication that said mobile communication device is a member of the identified CSG; and means for sending (23, 25) said generated message to a base station to which the mobile communication device is connected; means for receiving (23, 25) information identifying a closed subscriber group, CSG, associated with a home base station that operates, using a hybrid access mode, in which members and non-members are allowed to access the CSG; means for identifying (27, 43) the CSG associated with said home base station from the received information; means for determining (27, 43) whether the mobile communication device is a member of the identified CSG associated with said home base station; means for generating (27, 42) a message comprising a measurement report and including an indication of whether the mobile communication device is a member of the identified CSG, in dependence on a result of a determination made by the determining means; wherein when said mobile communication device is not a member of the identified CSG but has access to the associated home base station the measurement report includes an indication that said mobile communication device is not a member of the identified CSG, and when said mobile communication device is a member of the identified CSG the measurement report includes an indication that said mobile communication device is a member of the identified CSG; and means for sending (23, 25) said generated message to a base station to which the mobile communication device is connected; a further base station via which a plurality of mobile communication devices are connectable in the communication network, the further base station comprising: means for receiving (51, 53) the generated measurement report from the mobile communication device when it has an established connection with the base station. means for receiving (51, 53) the generated measurement report from the mobile communication device when it has an established connection with the base station.