METHOD, DEVICE AND SYSTEM FOR ACQUIRING ADDRESS OF APPLICATION SERVER

摘要

Embodiments of the present invention provide a method, device and system for acquiring an address of an application server. The method comprises: an AP entity receives a service setting message sent by a user equipment (UE); the AP entity sends a first request message to a BSF entity according to the service setting message, the first request message being used for requesting subscription data of a user using the UE; and the AP entity receives the subscription data of the user sent by the BSF entity, the subscription data of the user comprising an address of an AS that the user belongs to. Therefore, the AP entity can acquire the AS that the user belongs to.