Transmitting QoS during handover between systems

摘要

A method for transmitting quality of service (QoS) during a handover process between systems and a network system and a destination network thereof are provided, which enable the QoS to be transmitted to a second access network during a handover process of a user equipment (UE) between systems. The method comprises: a second network mobility management network element acquires QoS of a UE during a handover process of the UE from a first network to a second network; and the second network mobility management network element transmits the acquired QoS to the second network access network and/or a user plane network element. The network system comprises a UE, a first network and a second network. The second network comprises: a second network mobility management network element and a second network access network; the second network mobility management network element is adapted to acquire QoS of the UE during a handover process of the UE from the first network to the second network, and transmit the QoS to the second network access network; the second network access network is adapted to receive the transmitted QoS from the second network mobility management network element.