QoS processing method, application server, QoS control network element and mobile network

Disclosed are a quality of service (QoS) processing method, an application server, a QoS control network element and a mobile network. The method comprises: obtaining initial QoS information of a user equipment in a mobile network; according to the initial QoS information, determining to request the mobile network to increase the QoS level of the user equipment; sending to the QoS control network element a QoS increase request used for requesting to increase the QoS level of the user equipment; and receiving a QoS increase response sent by the QoS control network element, the QoS increase response comprising enhanced QoS information allocated to the user equipment by the mobile network. Using the QoS processing method, the application server, the QoS control network element and the mobile network of embodiments of the present invention, the QoS level of the user equipment can be dynamically adjusted, thereby improving user experience, and facilitating the promotion of application services.