A method of operating a terminal device as part of a handover procedure in a wireless communication network, the wireless communication network comprising a first network access node associated with a first cell of the wireless communication network and a second network access node associated with a second cell of the wireless communication network, the method comprising: establishing, by the terminal device, a first radio connection between the terminal device and the first network access node for supporting the transmission of data via a first bearer and a second radio connection between the terminal device and the first network access node for supporting the transmission of data via a second bearer; based on a first quality of service requirement for the data transmission via the first bearer and irrespective of a second quality of service requirement for the data transmission via the second bearer, establishing a third radio connection between the terminal device and the second network access node for supporting the transmission of the data via the first bearer; configuring the terminal device to operate the first bearer in a dual connectivity mode wherein the first and third radio connections combine to support the transmission of the data via the first bearer; after establishing the third radio connection between the terminal device and the second network access node, based on the second quality of service requirement and irrespective of the first quality of service requirement, establishing a fourth radio connection between the terminal device and the second network access node for supporting the transmission of the data via the second bearer; releasing, by the terminal device, the second radio connection with the first network access node when the fourth radio connection with the second network access node is established, and releasing, by the terminal device, the first radio connection with the first network access node . establishing, by the terminal device, a first radio connection between the terminal device and the first network access node for supporting the transmission of data via a first bearer and a second radio connection between the terminal device and the first network access node for supporting the transmission of data via a second bearer; based on a first quality of service requirement for the data transmission via the first bearer and irrespective of a second quality of service requirement for the data transmission via the second bearer, establishing a third radio connection between the terminal device and the second network access node for supporting the transmission of the data via the first bearer; configuring the terminal device to operate the first bearer in a dual connectivity mode wherein the first and third radio connections combine to support the transmission of the data via the first bearer; after establishing the third radio connection between the terminal device and the second network access node, based on the second quality of service requirement and irrespective of the first quality of service requirement, establishing a fourth radio connection between the terminal device and the second network access node for supporting the transmission of the data via the second bearer; releasing, by the terminal device, the second radio connection with the first network access node when the fourth radio connection with the second network access node is established, and releasing, by the terminal device, the first radio connection with the first network access node . <EOS>