VHT Capabilities and Operation elements and VHTC field Month Year doc.: IEEE 802.11-yy/xxxxr0 VHT Capabilities and Operation elements and VHTC field Date: 2010-11-08 Authors: Yong Liu, Marvell John Doe, Some Company

Contents VHT Capabilities element VHT Operation element VHT Control field Yong Liu, Marvell

VHT Capabilities element Yong Liu, Marvell

HT Capabilities element The HT Capabilities element is present when dot11HighThroughputOptionImplemented attribute is true The HT Capabilities element contains a number of fields that are used to advertise optional HT capabilities of an HT STA The HT Capabilities element is present in Beacon, Association Request, Association Response, Reassociation Request, Reassociation Response, Probe Request, and Probe Response frames An HT STA declares that it is an HT STA by transmitting the HT Capabilities element HT BSS is a BSS in which Beacon frames transmitted by an HT station (STA) include the HT Capabilities element Yong Liu, Marvell

VHT Capabilities element What capabilities are included in VHT Capabilities element? Capabilities for VHT but not for HT; and Capabilities for both HT and VHT, but have different definitions and/or scopes for HT and VHT; and Capabilities for both HT and VHT, and need to be set independently for HT and VHT A VHT STA declares that it is a VHT STA by transmitting both the VHT Capabilities element and HT Capabilities element Yong Liu, Marvell

Capabilities Info: HT vs. VHT (OK) (Change) (TBD) (Change) (Change) (OK) (Change) (TBD) (Change) (TBD) (TBD) (TBD) (TBD) (TBD) Yong Liu, Marvell

Other fields: HT vs. VHT (Change) (OK) (TBD) (Change) (TBD) Yong Liu, Marvell

VHT Capabilities element x: 0-7 => 2(13+x) -1 B Element ID Length VHT Capabilities Info A-MPDU Parameters Supported MCS Set Beamforming Capabilities Octets: 1 2 (TBD) 1 LDPC Coding Capabilities Supported Channel Width Set Short GI for 20/40/80/160 Tx STBC RX STBC Max A-MSDU Len. Tx MU MIMO Rx MU MIMO Other fields Bits: 1 2 (TBD) 1 00: No support for 160MHz and 80+80MHz 01: Support 160MHz 10: Support 80+80MHz 11: reserved 00: 3839B 01: 7935B 10: 11414B 11: rsvd Support at least 2x1 STBC Yong Liu, Marvell

Pre-motion 1 Should the spec framework document be updated to include a VHT Capabilities element defined in slide 8? Yes No Abstain Yong Liu, Marvell

VHT Operation element Yong Liu, Marvell

HT Operation element The HT Operation element is included by an AP when dot11HighThroughputOptionImplemented attribute is true. The operation of HT STAs in the BSS is controlled by the HT Operation element. Yong Liu, Marvell

Operation element: HT vs. VHT (Change) (Change) (Change) (Change) (TBD) (TBD) (TBD) (TBD) (TBD) (TBD) (TBD) (TBD) Yong Liu, Marvell

VHT Operation Element Element ID Length VHT Operation Information Basic MCS Set Octets: 1 2 (TBD) STA Channel Width Channel Center Frequency Segment 1 Channel Center Frequency Segment 2 Other Fields Octets: 1 1 TBD 0: 20MHz 1: 40MHz 2: 80MHz 3: 160MHz 4: 80+80MHz Channel number corresponding to the center frequency for 20/40/80/160MHz or 1st segment of 80+80MHz Channel number corresponding to the center frequency for 2nd segment of 80+80MHz; set to 0 for 20/40/80/160MHz Note that the primary/secondary channels are indicated in the HT operation element Yong Liu, Marvell

Pre-motion 2 Should the spec framework document be updated to include a VHT Operation element defined in slide 13? Yes No Abstain Yong Liu, Marvell

VHTC field Yong Liu, Marvell

11n HTC field The HT Control field is always present in a Control Wrapper frame and is present in QoS Data and management frames as determined by the Order bit of the Frame Control field Yong Liu, Marvell

VHTC field (1) (TBD) (TBD) VHT-MFB Change it to “HT/VHT”: 0: HTC Yong Liu, Marvell

VHTC field (2) The HT/VHT Control field is always present in a Control Wrapper frame and is present in QoS Data and management frames as determined by the Order bit of the Frame Control field An HT/VHT subfield is added to the HT/VHT control field The HT/VHT subfield (TBD) is set to 0 to indicate an HTC field The HT/VHT subfield (TBD) is set to 1 to indicate a VHTC field Yong Liu, Marvell

Pre-motion 3 Should the spec framework document be updated to define HT/VHT control field as in slide 18? Yes No Abstain Yong Liu, Marvell