Patent ID: 8144722
Filing Date: 2012-03-27
Classification: H04W

Abstract:
1. A multi-channel scheduling method in a wireless network comprising a plurality of Wireless Local Area Network (WLAN) devices with a single radio interface, the method comprising: setting a time interval of duration P and a Channel Coordination Window (CCW) to be repeated in a period of the duration P; switching from present channels of the plurality of WLAN devices to a first channel at a start point of the CCW; and allowing a pair of arbitrary WLAN devices among the plurality of WLAN devices to transmit control frames in the time interval of the CCW, wherein the control frames comprise a transmission proposal control frame for proposing communication in a second channel and a response frame, responding to the transmission proposal control frame for indicating whether the second channel has been accepted or rejected, and wherein the pair of arbitrary WLAN devices are switched to the second channel after acceptance in response to the transmission proposal control frame, and wherein the pair of arbitrary WLAN devices return from the second channel to the first channel upon completion of a transmission of a data frame corresponding to the control frames and an acknowledgement (ACK) frame for the data frame.