Patent ID: 8913510
Filing Date: 2014-12-16
Classification: H04L,H04W

Abstract:
1. A method to communicate using wideband transmissions, comprising: monitoring for traffic in a plurality of secondary channels using a station (STA) configured for wideband transmission in a primary channel and the plurality of secondary channels; determining that one or more channels of the plurality of secondary channels is idle; selecting a largest contiguous available bandwidth from at least bandwidths of 20 MHz, 40 MHz and 160 MHz; transmitting a multichannel request to send (RTS) frame to a responder on the primary channel and one or more of the secondary channels that the STA determined to be idle, wherein the multichannel RTS frame is a single frame occupying the selected contiguous available bandwidth and indicates the selected available bandwidth; receiving a multichannel clear to send (CTS) frame from the responder on the primary channel and at least one of the one or more of the secondary channels on which the multichannel RTS was transmitted that have also been determined to be idle by the responder, wherein the multichannel CTS frame indicates available bandwidth at the responder; and transmitting data by the STA using the available bandwidth indicated by the responder in the multichannel CTS frame.