Insert section 7.3.2.61: VHT Capabilities element VHT Capabilities element structure A VHT STA declares that it is a VHT STA by transmitting the VHT Capabilities element. The VHT Capabilities element contains a number of fields that are used to advertise additional optional VHT capabilities of a VHT STA. The VHT Capabilities element is present in Beacon, Association Request, Association Response, Reassociation Request, Reassociation Response, Probe Request, and Probe Response frames. The VHT Capabilities element is defined in Figure 74. Element VHT Capabilities Supported MCS Length A-MPDU parameters ID Info Set Octets: 1 1 TBD 1 TBD Figure 74--VHT Capabilities element format VHT Capabilities Info field The subfields of the VHT Capabilities Info are defined in Table 714. Table 714--Subfields of the VHT Capabilities Info field Subfield Definition Encoding Maximum Indicates maximum Set to 0 for 3839 octets Length length. See 9.7c. Set to 1 for 7935 octets Set to 2 for 11414 octets The value 3 is reserved Supported Set to 0 if the STA does not support Channel Width either 160 or 80+80 MHz Set Set to 1 if the STA supports 160 MHz Set to 2 if the STA supports 160 MHz and 80+80 MHz The value 3 is reserved LDPC Coding Indicates support for Set to 0 if not supported Capability receiving LDPC coded Set to 1 if supported packets Short GI for Indicates support for TBD 20/40/80/160 receiving packets using the short guard interval in various bandwidths Tx STBC Indicates support for the Set to 0 if not supported transmission of at least Set to 1 if supported 2x1 STBC Rx STBC Indicates support for the TBD reception of using STBC
Insert section 7.3.2.61: VHT Capabilities element VHT Capabilities element structure A VHT STA declares that it is a VHT STA by transmitting the VHT Capabilities element. The VHT Capabilities element contains a number of fields that are used to advertise additional optional VHT capabilities of a VHT STA. The VHT Capabilities element is present in Beacon, Association Request, Association Response, Reassociation Request, Reassociation Response, Probe Request, and Probe Response frames. The VHT Capabilities element is defined in Figure 74. Element ID Length VHT Capabilities Info A-MPDU parameters Supported MCS Set Octets: 1 1 TBD 1 TBD Figure 74--VHT Capabilities element format VHT Capabilities Info field The subfields of the VHT Capabilities Info are defined in Table 714. Table 714--Subfields of the VHT Capabilities Info field Subfield Definition Encoding Maximum Length Indicates maximum length. See 9.7c. Set to 0 for 3839 octets Set to 1 for 7935 octets Set to 2 for 11414 octets The value 3 is reserved Supported Channel Width Set Set to 0 if the STA does not support either 160 or 80+80 MHz Set to 1 if the STA supports 160 MHz Set to 2 if the STA supports 160 MHz and 80+80 MHz The value 3 is reserved LDPC Coding Capability Indicates support for receiving LDPC coded packets Set to 0 if not supported Set to 1 if supported Short GI for 20/40/80/160 Indicates support for receiving packets using the short guard interval in various bandwidths TBD Tx STBC Indicates support for the transmission of at least 2x1 STBC Set to 0 if not supported Set to 1 if supported Rx STBC Indicates support for the reception of using STBC TBD
11-10-1361-02-00ac-proposed-tgac-draft-amendment.docx