A first radio station for Dual Connectivity configured to operate a first cell, the first radio station comprising: means for communicating with a radio terminal configured to perform Dual Connectivity (S1101, S1102) using the first cell as a Primary Cell and a second cell operated by a second radio station as a Secondary Cell; means for determining to change the Secondary Cell of the radio terminal from the second cell to a third cell operated by a third radio station; means for sending, to the second radio station, an instruction for the second radio station to abort providing user data to the radio terminal in the second cell; means for receiving, from the second radio station, a response; means for sending to the third radio station a preparation request for the Secondary Cell and receiving from the third radio station a preparation request acknowledgement for the Secondary Cell; means for instructing, by transmitting a Radio Resource Control, RRC, connection reconfiguration message, the radio terminal to release the second cell and configure the third cell; means for receiving an RRC connection reconfiguration complete message from the radio terminal; and means for instructing the radio terminal to start using the third cell as the Secondary Cell characterised in that the instruction to the second radio station further comprised an instruction to report communication status information; the response comprises communication status information of the Secondary cell of the radio terminal; and the first radio station further comprises: means for sending, to a core network, a bearer switch request to change a bearer for a service of the radio terminal, which passes through the second radio station, to a bearer passing through the third radio station; and means for sending the communication status information to the third radio station, wherein said sending the communication status information is performed after transmitting said RRC connection reconfiguration message. means for communicating with a radio terminal configured to perform Dual Connectivity (S1101, S1102) using the first cell as a Primary Cell and a second cell operated by a second radio station as a Secondary Cell; means for determining to change the Secondary Cell of the radio terminal from the second cell to a third cell operated by a third radio station; means for sending, to the second radio station, an instruction for the second radio station to abort providing user data to the radio terminal in the second cell; means for receiving, from the second radio station, a response; means for sending to the third radio station a preparation request for the Secondary Cell and receiving from the third radio station a preparation request acknowledgement for the Secondary Cell; means for instructing, by transmitting a Radio Resource Control, RRC, connection reconfiguration message, the radio terminal to release the second cell and configure the third cell; means for receiving an RRC connection reconfiguration complete message from the radio terminal; and means for instructing the radio terminal to start using the third cell as the Secondary Cell characterised in that the instruction to the second radio station further comprised an instruction to report communication status information; the response comprises communication status information of the Secondary cell of the radio terminal; and the first radio station further comprises: means for sending, to a core network, a bearer switch request to change a bearer for a service of the radio terminal, which passes through the second radio station, to a bearer passing through the third radio station; and means for sending the communication status information to the third radio station, wherein said sending the communication status information is performed after transmitting said RRC connection reconfiguration message. means for sending, to a core network, a bearer switch request to change a bearer for a service of the radio terminal, which passes through the second radio station, to a bearer passing through the third radio station; and means for sending the communication status information to the third radio station, wherein said sending the communication status information is performed after transmitting said RRC connection reconfiguration message.