| CPC H04W 56/0015 (2013.01) [H04L 1/1614 (2013.01); H04L 1/1657 (2013.01); H04W 28/0268 (2013.01)] | 25 Claims |

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1. An apparatus comprising logic and circuitry configured to cause an Access Point (AP) to:
transmit a frame over a wireless communication channel, the frame comprising a field according to a first Physical layer Protocol Data Unit (PPDU) version decodable by a wireless communication (STA) of a first STA type, the field configured to indicate to the STA of the first STA type that the wireless communication channel is to be reserved for a reserved duration; and
communicate a low-overhead PPDU with a STA of a second STA type over the wireless communication channel during a Synchronized Transmit Opportunity (S-TxOP), wherein the S-TxOP is within the reserved duration, wherein the low-overhead PPDU is configured according to a second PPDU version decodable by the STA of the second STA type, the low overhead PPDU comprising a low-overhead preamble excluding one or more preamble fields of the first PPDU version.
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