A method for fast initial link setup (FILS) for use in a wireless station, is disclosed. The method comprises receiving a FILS discovery (FD) frame from an access point (AP). The FD frame comprises an FD frame control field and FD frame contents. The FD frame control field comprises a service set identifier (SSID) indicator, indicating whether an SSID field in the FD frame contents contains a full SSID or a short SSID and an SSID length field, indicating a size of the full SSID or the short SSID contained in the SSID field in the FD frame contents. The method further comprises determining whether to associate with the AP based on the received FD frame; and on a condition the determination is positive, the method further comprises transmitting an association request frame to the AP. A wireless station is also disclosed.