bandwidth, whether L-STF is transmitted in the user's 20 MHz or the entire PPDU BW. Something in this equation needs to be indexed on a per-user basis, perhaps i_BW or Omega_20MHz? modulated fields, which include L-STF, L-SIG, RL-SIG and HESIGA fields, are sent only on the 20 MHz channels where the STA's HE modulated fields are located." So it indicates L-STF is transmitted in the user’s 20MHz. Discussions: It is not necessary to have a separate equation for UL MU. is defined as the set of channels on which L-STF, L-LTF, L-SIG, RL-SIG and HESIGA fields are transmitted in an HE TB PPDU. can be defined more precise. ax editor: please make the following change in D2.1 Clause 28.3.10.3 On P403L8 (CID #11601): is a set of 20 MHz channels where pre-HE modulated fields are located. 11603 Dorothy Stanley 400.40 some of the variables are defined below Eq 28-6, and some are not. Lets define or provide references to definitions of all the variables. As in comment Rejected. The variables are not defined below Equation (28-6) are defined in 28.3.9 below equation (28-4). Doc provides guidelines for Equation variable definitions. 11604 Dorothy Stanley 400.63 “N20MHz” is not defined for 20 MHz. as in comment Revised. Change to as in the resolution of CID11604 in doc
over all users with HE TB PPDU? Discussions: BEAM_CHANGE value set to 0 does not apply to HE MU or HE TB PPDU. Hence definition is not needed for HE MU or HE TB PPDU. The commentor is right that should be defined for HE ER SU PPDU since BEAM_CHANGE value set to 0 does apply to HE ER PPDU. ax editor: please make the following change in D2.1 Clause 28.3.8 On P394L50 (CID #11606, CID #11615, CID #11624, CID #11632, CID #11519, CID #11525): For an HE SU PPDU ,. Remove Line 52 11608 Dorothy Stanley 401.25 Lets define or provide references to definitions of all the variables. As in comment Revised. Change to as in the resolution of CID11608 in doc 14066 Youhan Kim 401.23 Nsts is undefined. Define Nsts used in Equation Revises. Change to as in the resolution of CID14066 in doc ax editor: please make the following change in D2.1 Clause 28.3.10.2.3 On P403L25 (CID #11608, CID #14066): Please add the following to P403L31 Dorothy Stanley 401.53 some of the variables are defined below Eq 28-9, and some are not. Lets define or provide references to definitions of all the variables. As in comment Revised. Change to as in the resolution of CID11612 in doc 11613 Dorothy Stanley 401.53 In Clause 28.3.4 says: "In the HE TB PPDU, the pre-HE modulated fields, which include L-LTF, L-SIG, and HESIGA fields, are sent only on the 20 MHz channels where the STA's HE as in comment Rejected. It is not necessary to have a separate equation for UL MU. is defined as the set of 20MHz channels on which L-STF,
modulated fields are located." I don't see how this equation matches this statement for UL MU. There needs to be a per-user component for UL MU. This equation needs to be modeled like Eq 28-4. Best would be to create separate equations for UL MU. L-LTF, L-SIG, and HESIGA fields are transmitted in an HE TB PPDU. 11611 Dorothy Stanley 401.53 its not clear in an HE TB PPDU for a user with an RU <=242 in a 40, 80, or 160/80+80MHz bandwidth, whether L-STF is transmitted in the user's 20 MHz or the entire PPDU BW. Something in this equation needs to be indexed on a per-user basis, perhaps i_BW or Omega_20MHz? as in comment Rejected. Same reason as CID #11602 ax editor: please make the following change in D2.1 Clause 28.3.10.4 On P403L53 (CID #11612): Please add the following to 11617 Dorothy Stanley 402.20 Lets define or provide references to definitions of all the variables. As in comment Rejected. It is defined under Equation (28-8). Doc provides guidelines for Equation variable definitions. 14067 Youhan Kim 402.20 Nsts is undefined. Define Nsts used in Equation Rejected. Reasons as above.
11621 Dorothy Stanley 403.37 some of the variables are defined below Eq 28-9, and some are not. Lets define or provide references to definitions of all the variables. As in comment Revised. Change to as in the resolution of CID11621 in doc 11620 Dorothy Stanley 403.27 its not clear in an HE TB PPDU for a user with an RU <=242 in a 40, 80, or 160/80+80MHz bandwidth, whether L-STF is transmitted in the user's 20 MHz or the entire PPDU BW. Something in this equation needs to be indexed on a per-user basis, perhaps i_BW or Omega_20MHz? as in comment Rejected. Same reason as CID #11602 11622 Dorothy Stanley 403.27 In Clause 28.3.4 says: "In the HE TB PPDU, the pre-HE modulated fields, which include L-LTF, L-SIG, and HESIGA fields, are sent only on the 20 MHz channels where the STA's HE modulated fields are located." I don't see how this equation matches this statement for UL MU. There needs to be a per-user component for UL MU. This equation needs to be modeled like Eq 28-4. Best would be to create separate equations for UL MU. as in comment Rejected. Same reason as CID #11613 11629 Dorothy Stanley 404.45 its not clear in an HE TB PPDU for a user with an RU <=242 in a as in comment Rejected. Same reason as CID #11602
40, 80, or 160/80+80MHz bandwidth, whether L-STF is transmitted in the user's 20 MHz or the entire PPDU BW. Something in this equation needs to be indexed on a per-user basis, perhaps i_BW or Omega_20MHz? 11630 Dorothy Stanley 404.45 In Clause 28.3.4 says: "In the HE TB PPDU, the pre-HE modulated fields, which include L-LTF, L-SIG, and HESIGA fields, are sent only on the 20 MHz channels where the STA's HE modulated fields are located." I don't see how this equation matches this statement for UL MU. There needs to be a per-user component for UL MU. This equation needs to be modeled like Eq 28-4. Best would be to create separate equations for UL MU. as in comment Rejected. Same reason as CID #11613 ax editor: please make the following change in D2.1 Clause 28.3.10.5 and Clause 28.3.10.6 On P405L41 (CID #11621): Please add the following to P405L41 11626 Dorothy Stanley 404.16 Lets define or provide references to definitions of all the variables. As in comment Rejected. It is defined Equation (28-8). Doc provides
the user's 20 MHz or the entire PPDU BW. Something in this equation needs to be indexed on a per-user basis, perhaps i_BW or Omega_20MHz? Dorothy Stanley 419.25 In Clause 28.3.4 says: "In the HE TB PPDU, the pre-HE modulated fields, which include L-LTF, L-SIG, and HESIGA fields, are sent only on the 20 MHz channels where the STA's HE modulated fields are located." I don't see how this equation matches this statement for UL MU. There needs to be a per-user component for UL MU. This equation needs to be modeled like Eq 28-4. Best would be to create separate equations for UL MU. as in comment Rejected. Same reason as CID #11613 ax editor: please make the following change in D2.1 Clause 28.3.10.7.4 On P421L24 (CID Please add the following to P421L34 14073 Youhan Kim 420.4 Nsts is undefined. Define Nsts used in Equation Rejected. It is defined Equation (28-8). Doc provides guidelines for Equation variable definitions.
11607 Dorothy Stanley 401.25 In Clause 28.3.4 says: "In the HE TB PPDU, the pre-HE modulated fields, which include L-LTF, L-SIG, and HESIGA fields, are sent only on the 20 MHz channels where the STA's HE modulated fields are located." I don't see how this equation matches this statement for UL MU. There needs to be a per-user component for UL MU. This equation needs to be modeled like Eq 28-4. Best would be to create separate equations for UL MU. as in comment Rejected. BEAM_CHANGE value set to 0 does not apply to HE TB PPDU format. 11616 Dorothy Stanley 402.20 In Clause 28.3.4 says: "In the HE TB PPDU, the pre-HE modulated fields, which include L-LTF, L-SIG, and HESIGA fields, are sent only on the 20 MHz channels where the STA's HE modulated fields are located." I don't see how this equation matches this statement for UL MU. There needs to be a per-user component for UL MU. This equation needs to be modeled like Eq 28-4. Best would be to create separate equations for UL MU. as in comment Rejected. BEAM_CHANGE value set to 0 does not apply to HE TB PPDU format. 11625 Dorothy Stanley 404.16 In Clause 28.3.4 says: "In the HE TB PPDU, as in comment Rejected. BEAM_CHANGE value set to 0 does
since symbol is later used to represent the final 52 output symbols (see lines 17 and 18) ax editor: please make the following change in D2.1 Clause 28.3.10.7.4 On P421L10 (CID #13463): HE-SIG-A symbols shall be BCC encoded at rate, R = 1/2, interleaved, mapped to a BPSK constellation, and have pilots inserted following the steps described in 17.3.5.6 (Convolutional encoder), 28.3.11.8 (BCC interleavers), 17.3.5.8 (Subcarrier modulation mapping), and 17.3.5.9 (Pilot subcarriers), respectively. Dorothy Stanley 421.3 Lets define or provide references to definitions of all the variables. As in comment Rejected. Equations (28-18) and (28-19) are extensions of equation (28-16) and (28-17), describing HE ER PPU HE-SIG-A time domain waveforms. All variables common to equations are already defined after equations (28-16) and The variables unique to equations (28-18) and (28-19) are defined for each equation. Dorothy Stanley 421.22 Lets define or provide references to definitions of all the variables. As in comment Rejected. Reasons as 11524 Dorothy Stanley 421.3 instead of defining N_20MHz=1, remove i_BW and K_shift from the equation As in comment Revised. Change to as in the resolution of CID11524 in doc 11527 Dorothy Stanley 421.22 instead of defining N_20MHz=1, remove i_BW and K_shift from the equation As in comment Revised. Change to as in the resolution of CID11527 in doc
ax editor: please make the following change in D2.1 Clause 28.3.10.7.4 On P423L3 (CID #11524): Please remove on P423L12 and on P423L32. Replace Equations and (28-19) with the Equations below. yujin noh 419.24 wTSYML needs to be modified with As in comment Rejected. is defined in 28-12 as the duration of entire HE-SIG-A field, which consists of two OFDM symbols. is defined as the OFDM symbol duration for modulated fields. So it is correct to use . 14175 yujin noh 420.3 wTSYML to be modified with As in comment Rejected. Reasons as above. 12565 Lochan Verma 428.28 When '242-tone Empty' is signaled by RU Allocation Table in the Common Field of HE-SIG-B, no User field is present corresponding to this RU Allocation Table . Please clarify in spec. As in comment Rejected. “242-tone Empty” indicates no transmission signal in this RU in case of HE MU preamble puncturing. Youhan Kim 421.48 Common field is not always present Clarify that Common field is not always present Revised. Change to as in the resolution of CID14074 in doc ax editor: please make the following change in D2.1 Clause 28.3.10.8.2 On P423L48 (CID #14074): tone
It consists of a Common field followed by a User Specific field which together are referred to as the content channel. Please add “if present” after “common field” in figure 28-25. 11528 Dorothy Stanley 425.41 what is N_SR? Lets define or provide references to definitions of all the variables. As in comment Revised. Change to as in the resolution of CID11528 in doc 11529 Dorothy Stanley 425.58 I don't see N_20MHz used in Eq. 28-20. As in comment Revised. Change to as in the resolution of CID11529 in doc ax editor: please make the following change in D2.1 Clause 28.3.10.8.4 On P427L39 (CID #11528,CID #11529): Please add the following on P427L46 13471 Sigurd 425.29 What is meant by "the sample on the k-th data subcarrier" Clarify Revised. Change to as in the resolution of CID13471 in doc 13472 Sigurd 425.30 Add "for transmit chain i_TX and segment i_seg" See comment Revised. Change to as in the resolution of CID13472 in doc ax editor: please make the following change in D2.1 Clause 28.3.10.8.4 On P427L29 (CID #13471, CID #13472): For the c-th content channel (c = 1 or 2), denote the the k-th data subcarrier of the n-th symbol by . The time domain waveform for the HE-SIG-Bfollows Equation (28-20). Sigurd 433.62 Add reference to 28-12 when using "T_HE-STF-NT" See comment Revised. Change to as in the resolution of CID13479 in doc
ax editor: please make the following change in D2.1 Clause 28.3.10.9 On P435L62 (CID #13479): The duration of the HE-STF for HE PPDUs that are not HE TB PPDUs is (periodicity of 0.8 μs with 5 periods) and the duration of the HE-STF field for an HE TB PPDU is (periodicity of 1.6 μs with 5 periods). 11413 Bin Tian 434.7 "and coefficients selected out of or at indices which are null but shall have the HE-STF coefficients after mapping M sequences to each 20 MHz subchannel." What does this sentece mean? as in the comment Revised. Change to as in the resolution of CID11413 in doc 13480 Sigurd 434.7 Unclear sentence: "...at tone indices which are null but shall have the HE-STF coefficients after mapping M sequences to each 20 MHz subchannel.." Clarify Revised. Change to as in the resolution of CID13480 in doc Discussions: The extra coefficients selected out of or at tone indices which are null but shall have the HE-STF coefficients after mapping M sequences to each 20 MHz subchannel referes to the HE-STF sequence values assigned to tones inside center 26-tone RUs for 80MHz, 160MHz or 80+80MHz transmission. The sentence can be improved for better readability. ax editor: please make the following change in D2.1 Clause 28.3.10.9 On P436L6 (CID #11413,CID #13480) The HE-STF field is constructed the M sequence(s) multiplied by or or tone indices which are . 11414 Bin Tian 435.49 Please use more accurate description of alpha_r in P397L8 as in the comment Revised. Change to as in the resolution of CID11414 in doc 13377 Yan Zhang 435.49 The statement " alpha_r is the power boost factor for the Change to " alpha_r is defined in Revised. Change to as in the resolution of CID13377 in doc
11534 Dorothy Stanley 434.64 Eq 28-28 is not clear. Both equations have a value at HES_248 and HES_-248. The top equation has the value (1+j)/sqrt(2) and (-1-j)/sqrt(2), but bottom equation has the value 0. Which is it? As in comment Revised. Change to as in the resolution of CID11534 in doc 11535 Dorothy Stanley 435.01 Eq 28-29 is not clear. Both equations have a value at HES_504 and HES_-504. Which is it? As in comment Revised. Change to as in the resolution of CID11535 in doc Dorothy Stanley 435.14 Eq 28-30 is not clear. Both equations have a value at HES_1016 and HES_-1016 and HES_8 and HES_-8. Which is it? As in comment Revised. Change to as in the resolution of CID11642 in doc Dorothy Stanley 435.27 Eq 28-31 is not clear. Both equations have a value at HES_504 and HES_-504. Which is it? As in comment Revised. Change to as in the resolution of CID11643 in doc ax editor: please make the following change in D2.1 Clause 28.3.10.9 On P436L15 (CID #11533): Please add the following on P436L16 On P436L64 (CID #11534): Please add the following on P436L64 On P437L7 (CID #11535): Please add the following on P437L7 On P437L16 (CID #11642): Please add the following on P437L16 , On P437L28 (CID #11643): Please add the following on P437L7 11644 Dorothy Stanley 435.31 Regarding "For an OFDMA transmission, As in comment Rejected.
the coefficients in Equation (28-22) to Equation (28-31) are set to zero if those values are corresponding to tone indices that fall within RUs that have no users assigned to them." Please provide analysis that not assigning values to tone indices with blank RU's will not degrade correlation performance, as there will effectively be a different sequence/pattern for each combination of blank RU's. Do all sequences have good correlation properties? The main purpose of the HE-STF field is to improve automatic gain control estimation in a MIMO transmission. The HE-STF sequence is not designed for correlation purpose. 11645 Dorothy Stanley 435.48 Lets define or provide references to definitions of all the variables. As in comment Revised. Change to as in the resolution of CID11645 in doc Dorothy Stanley 436.21 Lets define or provide references to definitions of all the variables. As in comment Revised. Change to as in the resolution of CID11648 in doc ax editor: please make the following change in D2.1 Clause 28.3.10.9 On P438L8 (CID #11645,CID #11648): Please add the following on P438L8
11646 Dorothy Stanley 435.63 What is the difference between K_r and K_r^HE-STF? As in comment Revised. Change to as in the resolution of CID11646 in doc Discussions: It is stated on P437L65 that is the set of subcarriers that have non-zero values within in the HE-STF It could be better to refer the definition of in 28.3.9 in this subclause. ax editor: please make the following change in D2.1 Clause 28.3.10.9 On P437L64 (CID #11646) is the cardinality of the set of subcarriers 11647 Dorothy Stanley 436.15 Provide an equation to compute N_STS,r,total based on information from the Trigger. As in comment Rejected. The calucuation of is provided in Table 28-15. The equation applies to both HE MU PPDU and HE TB PPDU. 13367 Ron porat 435.60 Need consistent indexing here for the definition of beta_r.(r=1 to N_{RU}) is not consitent with usage in other places The indexing should go from r=0 to N_{RU}-1 Revised. Change to as in the resolution of CID13367 in doc ax editor: please make the following change in D2.1 Clause 28.3.10.9 On P437L60 (CID #13367): Replace the Equation for with the Equation below 13634 Tianyu Wu 436.28 For 1x/2x LTF, the transmitter shall be mandate to select spatial mapping matrices to preserve the smoothness of the physical channel otherwise the channel estimation accuracy Add a note to emphasis that for 1x/2x LTF, bad smoothness may lead to significant performance loss. Rejected. Smoothing spatial mapping matrices is a recommendation. It is up to the implementation. There is no metrics to measure what is good smoothness or bad smoothness.