9.3.1.20 VHT/HE NDP Announcement frame format The HE NDP Announcement uses the same Frame Control Type as the VHT NDP Announcement. The frame format of the HE NDP Announcement frame with multiple STA info field is shown in Figure xxx (HE NDP Announcement frame format). FIG-XXX HE NDP Announcement frame format Table-XXX HE Sounding Dialog Token Subfield Description Sounding Dialog Token Bit 1 of the Sounding Dialog Token is set to 1 to indicate HE NDP Announcement The STA Info for a HE NDP Announcement Frame is shown in FIG xxx – FIG-XXX STA Info for HE NDP Announcement Frame The Bit’ is the HE NDP Announcement Frame is set to 1 to prevent a VHT STA from ‘Disambiguition wrongly determining it’s AID in the HE STA Info. Table-XXX HE NDP Announcement Frame Encoding Subfield Description AID11 contains the 11 least significant bits of the AID of a STA expected to process the AID11 following HE NDP and prepare the sounding feedback. Inidicates the RU26 Start Index and the RU26 End Index. Partial BW Info Indicates the feedback type, Ng and the Codebook that the beamformee shall provide Feedback Type + feedback. Ng+Codebook Set to 1 to prevent a VHT STA from wrongly determining it’s AID in the Disambiguition HE STA Info Indicates the number of columns, in the compressed beamforming feedback matrix Nc, Nc minus 1: Set to 0 for = 1 Nc Set to 1 for = 2 Nc … Set to 7 for = 8 Nc The Partial BW Info Field is shown below FIG-XXX Partial BW Info Field Table-XXX Partial BW Info Field Encoding Partial BW Info Field Description
9.3.1.20 VHT/HE NDP Announcement frame format The HE NDP Announcement uses the same Frame Control Type as the VHT NDP Announcement. The frame format of the HE NDP Announcement frame with multiple STA info field is shown in Figure xxx (HE NDP Announcement frame format). FIG-XXX HE NDP Announcement frame format Table-XXX HE Sounding Dialog Token Subfield Description Sounding Dialog Token Bit 1 of the Sounding Dialog Token is set to 1 to indicate HE NDP Announcement The STA Info for a HE NDP Announcement Frame is shown in FIG – xxx FIG-XXX STA Info for HE NDP Announcement Frame The ‘Disambiguition Bit’ is the HE NDP Announcement Frame is set to 1 to prevent a VHT STA from wrongly determining it’s AID in the HE STA Info. Table-XXX HE NDP Announcement Frame Encoding Subfield Description AID11 AID11 contains the 11 least significant bits of the AID of a STA expected to process the following HE NDP and prepare the sounding feedback. Partial BW Info Inidicates the RU26 Start Index and the RU26 End Index. Feedback Type + Ng+Codebook Indicates the feedback type, Ng and the Codebook that the beamformee shall provide feedback. Disambiguition Set to 1 to prevent a VHT STA from wrongly determining it’s AID in the HE STA Info Nc Indicates the number of columns, Nc, in the compressed beamforming feedback matrix minus 1: Set to 0 for Nc = 1 Set to 1 for Nc = 2 … Set to 7 for Nc = 8 The Partial BW Info Field is shown below FIG-XXX Partial BW Info Field Table-XXX Partial BW Info Field Encoding Partial BW Info Field Description
11-16-0773-01-00ax-comment-resolution-section-25-6-he-sounding.docx