Patent ID: 7298726

Claim:
A method for processing a service connection between a WLAN and a WLAN user terminal, applicable to a WLAN interactive network at least including the WLAN user terminal, a WLAN access unit, a service control unit and a user information storage unit, comprising: setting a first flag and a second flag representing either an attached status or a detached status for the service connection between the user terminal and the WLAN respectively in the WLAN user terminal and the service control unit; and establishing or canceling the service connection between the user terminal and the WLAN based on at least an interaction between the WLAN user terminal and the WLAN, and modifying the first flag and the second flag; wherein the process for establishing the service connection between the user terminal and the WLAN includes attaching the WLAN user terminal to the WLAN, the process for attaching the WLAN user terminal to the WLAN further comprising: a 11 . when the WLAN user terminal accesses the WLAN, the WLAN user terminal sending an attach request to the service control unit via the WLAN access unit; a 12 . upon receiving the attach request, the service control unit determining whether to allow the WLAN user terminal to establish the service connection; if not, the service control unit denying the attach request sent by the user terminal, and ending the process for attaching the WLAN user terminal to the WLAN; otherwise, the service control unit recording a service connection status of the WLAN user terminal as WLAN attached, and returning an access response to the WLAN user terminal; wherein said attach request includes a permanent or temporary identification of the WLAN user terminal; on receiving the attach request, the service control unit determining whether the permanent or temporary identification of the user terminal in the attach request is valid; if not, the service control unit initiating a request procedure to the user terminal to fetch a valid flag of the user terminal; otherwise, the service control unit determining whether itself has stored user information of the user terminal sending the attach request; if there is no such information, the service control unit sending a request for the user information of the user terminal to the user information storage unit; otherwise, performing the process a 12 directly.