Mike Albano

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802.11k

Channel Support

802.11r

Min & Max Power (dBm)

802.11v

Spatial Streams

20/40 MHz Operation & LDPC

MU & SU MIMO Beamformer & Beamformee

MCS (256-QAM is Optional in 802.11ac)

160MHz channels (incl. 80+80) 80MHz support=Mandatory in 802.11ac

802.11ac Sounding (Beamforming Feedback/Channel Measurements)

802.11w

This advertises support for MFP-Optional. You can not determine if the device supports an 802.11w-mandatory BSS.

For reference, below is the 802.11ac-2013 Specification section on Optional V. Mandatory features:

4.3.10a Very high throughput (VHT) STA

This subclause summarizes the normative requirements for an IEEE 802.11 VHT STA stated elsewhere in this standard.

The IEEE 802.11 VHT STA operates in frequency bands below 6 GHz excluding the 2.4 GHz band.

A VHT STA is an HT STA that, in addition to features supported as an HT STA, supports VHT features identified in Clause 8, Clause 9, Clause 10, Clause 13, Clause 18, and Clause 22.

The main PHY features in a VHT STA that are not present in an HT STA are the following:

— Mandatory support for 40 MHz and 80 MHz channel widths

— Mandatory support for VHT single-user (SU) PPDUs

— Optional support for 160 MHz and 80+80 MHz channel widths

— Optional support for VHT sounding protocol to support beamforming

— Optional support for VHT multi-user (MU) PPDUs

— Optional support for VHT-MCSs 8 and 9

The main MAC features in a VHT STA that are not present in an HT STA are the following:

— Mandatory support for the A-MPDU padding of a VHT PPDU

— Mandatory support for VHT single MPDU

— Mandatory support for responding to a bandwidth indication (provided by the RXVECTOR

parameters CH_BANDWIDTH_IN_NON_HT and DYN_BANDWIDTH_IN_NON_HT) in a nonHT

and non-HT duplicate RTS frame

— Optional support for MPDUs of up to 11 454 octets

— Optional support for A-MPDU pre-end-of-frame (pre-EOF) padding (see 9.12.2 (A-MPDU length limit rules)) of up to 1 048 575 octets

— Optional support for VHT link adaptation

Most VHT features, among other benefits, increase the maximum throughput achievable between two VHT STAs over that achievable using HT features alone. The VHT features are available to VHT STAs associated with a VHT AP in a BSS. A subset of the VHT features is available for use between two VHT STAs that are members of the same IBSS. Similarly, a subset of the VHT features is available for use between two VHT STAs that have established mesh peering. A subset of the VHT features is available for use between two VHT STAs that have established a TDLS link.

The support for VHT transmit beamforming sounding and VHT MU PPDUs in a VHT AP and more than one VHT STA within a VHT BSS enables the optional use of downlink MU multiple input, multiple output (DL-MU-MIMO). With DL-MU-MIMO the AP can create up to four A-MPDUs, each carrying MPDUs destined for an associated MU-capable STA. The AP uses group identifiers (GIDs) to signal potential recipient STAs. The AP transmits the A-MPDUs simultaneously in separate space-time streams such that each recipient STA is able to demodulate the space-time streams carrying its A-MPDU. The simultaneous transmission of A-MPDUs in a single VHT MU PPDU provides a means to increase aggregate throughput

over that achieved by sending the A-MPDUs in separate SU PPDUs.