METHOD AND SYSTEM AND NETWORK ELEMENT FOR SERVICE PROCESSING AFTER NETWORK ELEMENT DATA INVALIDATED AND OCCURRING FAULT

摘要

A method, a system, and a network element for service processing after data of a network element is invalid or a network element fails are provided. The method includes sending a data invalid message to a calling end when the calling end sends a service request message to a service network element (1) in a network but user data of the calling end stored in the service network element (1) is invalid. When the service network element (1) receives the service request message from the network and initiated to a called end and the user data is invalid, the service network element (1) returns a data invalid message of the called end to the network. A method and a system for returning user data, a home subscriber server (HSS), and a serving call session control function (S-CSCF) are also provided. The HSS receives a user data request message containing a user identity from the S-CSCF; the HSS queries an S-CSCF assigned to a user according to the user identity; when the assigned S-CSCF is the requesting S-CSCF, the HSS returns the user data according to the request message. When a network element containing registration data of a user is abnormal and the registration data of the user is invalid, by using the present invention, the service unavailable time is shortened, and user services can be recovered rapidly.