Patent ID: 8565199

Claim:
A Tunneled Direct Link Setup (TDLS) establishment method for an intended peer station, the method comprising: associating a Basic Service Set (BSS) which comprises an Access Point (AP); receiving a TDLS setup request frame through the AP from a TDLS initiator, the TDLS setup request frame requesting to establish a TDLS direct link between the TDLS initiator and the intended peer station, the TDLS setup request frame including a link identifier identifying the TDLS direct link, the link identifier including a basic service set identifier (BSSID) field, a transmitter address field and a receiver address field, the BSSID field being set to a BSSID of the BSS to which the TDLS initiator is associated, the transmitter address field being set to the TDLS initiator's medium access control (MAC) address, the receiver address field being set to the intended peer station's MAC address; determining whether to accept a request by the TDLS setup request frame by confirming whether the BSSID of the BSSID field in the link identifier matches a BSSID of the BSS to which the intended peer station is associated; and transmitting a TDLS setup response frame including a status code field through the AP to the TDLS initiator in response to the TDLS setup request frame, the status code field indicating whether or not the request by the TDLS setup request frame is accepted, wherein if the status code field indicates the request is accepted: the BSSID of the BSSID field in the link identifier matches the BSSID of the BSS to which the intended peer station is associated, the TDLS setup response frame further includes the link identifier, and the method further comprises receiving a TDLS setup confirm frame from the TDLS initiator through the AP in response to the TDLS setup response frame, the TDLS setup confirm frame including the link identifier, and wherein, if the BSSID of the BSSID field in the link identifier does not match the BSSID of the BSS to which the intended peer station is associated, the status code field indicates the request is rejected, and wherein the TDLS setup confirm frame includes an HT (High Throughput) operation information element that includes a secondary channel offset element.