11895 Hongyuan Zhang 248.1 For accurate timing synchronization at each STA responding a trigger frame, the legacy part preamble (L-STF, L-LTF, ...) of the PPDU carrying trigger frame shall not be beamformed. There are existing implementations that may beamform the legacy preamble or the whole non-HT PPDU, but it is better to be disallowed if the PPDU is carrying a trigger frame. Add a note: "Beamforming the non-HT preamble of the PPDU carrying a Trigger Frame is not Revised. Change to as in the resolution of CID11895 in doc ax editor: please make the following change in D2.0 Clause 27.5.3.2.3 On P248L1 (CID #11895): Please add the following sentence on P248L3. An HE AP shall not use STBC encoding for a PPDU that carries a Trigger frame. 11545 Dorothy Stanley 142.47 I can't find a definition or equation for N_STS,total as in comment Revised. Change to as in the resolution of CID11545 in doc 11546 Dorothy Stanley 142.56 I can't find a definition or equation for N_STS,total as in comment Revised. Change to as in the resolution of CID11546 in doc ax editor: please make the following change in D2.0 Clause 9.4.2.237.3 On P142L47 (CID #11545): replace with “the total number of space-time streams” On P142L56 (CID #11546): replace with “the total number of space-time streams” ax editor: please make the following change in D2.0 Clause 9.3.1.23
On P88L14 (CID #11545, CID #11546): replace with For a PPDU, the number of HE-LTF symbols is a function of the total number of space-time streams, and the encoding of the Number Of HE-LTF Symbols And Midamble Periodicity subfield is defined in Table 21-13. On P88L18 (CID #11545, CID #11546): replace with For an OFDMA PPDU, the number of HE-LTF symbols is greater than or equal to the maximumacross all allocated RUs and the encoding of the Number Of HE-LTF Symbols And Midamble Periodicity subfield is the same as the Number of HE-LTF Symbols field defined in Table 28-19 (HE-SIG-A field of an HE MU PPDU). 11590 Dorothy Stanley 28.3.8 392.52 for an HE MU PPDU, N_STS is a function of N_STS,r,total. But then on pg 393, line 12 N_STS,r,total is equal to N_STS. Something seems wrong with this logic. as in comment Rejected. on pg 393, line 12 N_STS,r,total is equal to N_STS which only applies pre-HE modulated fields when BEAM_CHANGE is set to 0. BEAM_CHANGE does not apply to HE MU PPDU. 11591 Dorothy Stanley 28.3.8 393.12 On Pg 346, line 56, BEAM_CHANGE is "Not present" for formats other than HE_SU or HE_EXT_SU. So how is N_STS,r,total determined for HE MU PPDU or HE TB PPDU? as in comment Revised. Change to as in the resolution of CID11591 in doc ax editor: please make the following change in D2.0 Clause 28.3.8 On P393L12 (CID #11591): For pre-HE modulated fields, is undefined when the TXVECTOR parameter BEAM_CHANGE is 1 and when BEAM_CHANGE is 0. 13453 Sigurd 28.3.8 389.42 pre-HE preamble is not defined. define Revised. Change to as in the resolution of CID13453 in doc
Parameters listed in 28-13 not only apply to Data field but aslo apply to other HE-modulated fields in a non-OFDMA HE PPDU. It is more accurate to rename Table 28-13 to “Tone allocation related constants for the HE-modulated fields in a non-OFDMA HE PPDU” ax editor: please replace Table 28-13 title “Tone allocation related constants for the Data field in a HE PPDU” with “Tone allocation related constants for the HE-modulated fields in a HE PPDU” and change the corresponding references throughout the draft. 11383 Bin Tian 28.3.9 397.13 Remove "and HE TB PPDU" since alpha_r doesn't apply to TB PPDU in eq 28-4 as in the comment Revised. Change to as in the resolution of CID11383 in doc ax editor: please make the following change in D2.0 Clause 28.3.9 On P397L13 (CID #11383): For an HE SU PPDU HE ER SU PPDU, is always set to 1. 11384 Bin Tian 28.3.9 397.23 In equation (28-5), it should be |Kr Field| instead of Kr Field as in the comment Revised. Change to as in the resolution of CID11383 in doc ax editor: please make the following change in D2.0 Clause 28.3.9 On P397L23 (CID #11384): replace “, for HE modulated fields in an HE TB PPDU” with “, for HE modulated fields in an HE TB PPDU” in Equation (28-5). 11385 Bin Tian 28.3.9 398.43 It's better to add a subscript r (i.e. RU id) to the spatial mapping matrix Q_k_(iseg) and Q_k,u_(iseg) since its dimension depends on Nsts_r,total which varies per RU. as in the comment Rejected. Subcarrier index k is a function of RU index r. RU index r can be inferred from subcarrier index k.