Patent ID: 8767692
Filing Date: 2014-07-01
Classification: H04L,H04W

Abstract:
1. A method for directly linking stations in an IEEE 802.11 WLAN environment, comprising: (a) performing a negotiation for setting a direct link by a wireless channel, a secondary channel other than a basic service set (BSS) channel used for communicating between a station, an access point (AP), and another station, when traffic destined to the other station is generated in the station; (b) switching an operation channel of the station from the BSS channel to the secondary channel when the negotiation requires the switching, and the negotiation for setting the direct link by the secondary channel succeeds according to the negotiation performance results; (c) transmitting data of the generated traffic to the other station through the secondary channel; (d) releasing the direct link setup from the other station when the traffic destined to the AP is generated in the station after step (c); (e) switching the operation channel of the station from the secondary channel to the BSS channel; (f) transmitting the data of the generated traffic to the AP through the BSS channel; and (g) performing a negotiation for setting the direct link by the BSS channel with the other station only in the case in which the traffic destined to the other station is generated at the time when a predetermined time does not lapse from the time when the data are finally transmitted and received to and from the AP after the step (e).