| 摘要 |
A method and system for authentication of a mobile device that includes a mobile device and a network element in a communications network. The network element may be a call state control function. If the network element detects an incorrect event related to a mobile device (S3), the network element shortens a registration validity time for the mobile device (S4) and sends the mobile device a notification to re-authenticate (S5). The incorrect event can be, for example, an incorrect authentication response, an incorrect action by the mobile device, a session over a time maximum, traffic generated being over a maximum, or credit run out. The mobile device is de-registered if the mobile device falls to re-authenticate within the shortened registration validity time (S8), and re-registered if the mobile device re-authenticates within the shortened registration validity time (S10). The registration validity time for the mobile device is extended after re-registration. |
