Proposed resolution provides more details on this aspect. Make the changes to (use similr language I have in my documents for the instructiosn to the editor). 1000 kaiying Lv 25.6 High efficient sounding sequence should be provided comment resolution and supporting PPT will be provided Revised --. The comment fails to provide sufficient details. The proposed resolution is to finalize the details for the two sequences for HE sounding that have been defined. 1221 Liwen Chu 25.6 The condition when HE sounding protocol is supported is missing. Add the related rules. As in comment. Revised Agree in principle. The proposed resolution accounds for the suggested change by clarifying the conditions which cause HE sounding are provided. 1915 Sigurd Schelstraete 25.6 Change "NDP Announcement frame" to "HE NDP Announcement frame" See comment Revised – Proposed resolution accounts for the suggested change. Note: There has to be somewhere a statement that defines the HE NDP Announcement as an HE variant VHT NDP announcement frame. 2234 Tomoko Adachi 25.6 Clarify what kind of sequence variations are allowed for the HE sounding protocol. The variations should be limited to a minimum for simplicity. As in comment. Revised Agree in principle with the coment. Proposed resolution provides the details for the SU and MU sounding sequences
802 Jing Ma 60.36 the draft doesn't clarify how an HE AP solicit beamforming feedback from multiple STAs sequentially through SU transmission. Does it mean that we just follow the sounding protocol with multi-user in 11ac (the example procedure shown in Figure of the sounding protocol with a single VHT beamformee) "An example of soliciting beamforming feedback from multiple STAs through SU transmission sequences are shown in Figure 9-41b41a (Example of the sounding protocol with a single VHT beamformee)" should be added at the end of "an HE AP solicit beamforming feedback from multiple STAs sequentially through SU transmission" Revised. Agree in principle the comment. Proposed clarifies these details. Provided details 1695 Oghenekome Oteri 61.39 No details on Feedback for HE sounding protocol Update draft to reflect March agreements Revised and as above. Provided details TGax Editor: Add the subclause below as resolution to (#CID 55, 1000, 1221, 1915, 2234, 2459, 2665,802,1695): Example
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
9.4.1.6x HE MIMO Control Field Insert the following sentences at the beginning of section 9.4.1.6x: The HE MIMO Control field is included in every HE Compressed Beamforming frame (see 9.4.1.62. The HE MIMO Control field is defined in Figure xxx (HE MIMO Control field). FIG-XXX HE MIMO Control Field The subfields for the HE MIMO Control Fields are defined in Table xxx Table-xxx HE MIMO Control Field Encoding Subfield Description 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 Nr Indicates the number of rows, Nr, in the compressed beamforming feedback matrix minus 1: Set to 0 for Nr = 1 Set to 1 for Nr = 2 … Set to 7 for Nr = 8 BW Indicates the Channel Width that shall be used to determine the starting and ending subcarrier indexes when interpreting the RU Start Index and RU End Index. Set to 0 for 20 MHz 1 for 40 MHz 2 for 80 MHz 3 for 160 & 80+80 MHz Grouping Indicates the subcarrier grouping, Ng, used for the compressed beamforming feedback matrix: Set to 0 for Ng = 4 Set to 1 for Ng = 16