Methods and apparatuses are disclosed for facilitating roaming of terminal device. According to an embodiment, a session management node operable in a home network receives, from another session management node operable in a visiting network, a quality of service (QoS) policy per a roaming agreement between the visiting network and the home network during establishment of a protocol data unit (PDU) session for a terminal device. The session management node retrieves, from a subscriber management node, subscribed QoS parameters of the terminal device. The session management node obtains a result that is generated based on the QoS policy per the roaming agreement and the subscribed QoS parameters of the terminal device.