8214 Aboulmagd Clause 27.2.3 doesn specify clearly when an EDCA for UL MU Capable STAs is obtained. It focuses on the different parameter settings. explain which counters are involved in obtaining the TXOP. Does HEMUEDCATimer[AC] only used to contrl the values of Cwmin, Cwmax, etc as implied in the last paragarph of this clause. Need to be clear Revised – in principle with the comment. Clarify the spec by changing the spec text as in the proposed changes in doc . 8264 Pascal HEMUEDCATimer[AC] shall uniformly count down to 0. Is this countdown continuously performed along time, or is the countdown suspended in between each medium access (that means only counting down during contention procedure periods) ? Please clarify when countdown is executed. Revised – Clarify that can not be any suspensions. Modify the sentence as defined in the proposed changes in fdoc . 8295 Patrice Nezou When a STA is in MU EDCA mode, how the QoS data are selected from the ACs ? Proposal: "The HE PPDU is built based on the current backoff values of ACs. The backoff values must be updated after the transmission". Rejected – this comment does not to this section, but to subclause 27.10.4 A-MPDU with multiple TIDs where these rules are already defined. 8296 Patrice When a STA switches from MU EDCA to EDCA, how the backoff are restored ? Proposal: "The backoff values must be resetted and CW is set to when switching from MU EDCA to EDCA." Rejected – the spec currently says that only the CWmin,max and AIFSN values are updated, not the backoff nor the CW. The backoff and CW are updated based on legacy procedures, using the updated parameters. The intent is not to reset CW and backoff values. 8297 Patrice Nezou A STA, exchanging QoS data frame with another in DLS mode and setting in MU EDCA mode, cannot transmit any QoS data frame related to the DLS transmission because the scheduled RU allocated by the AP are dedicated to transmit QoS data frame to the AP. Disable MU transmission mode when direct link transmissions are initiated by sending a containing an OMI A-Control field, and reset EDCA parameters. Revised – add , as described in the proposed text in doc
4742 Alfred Asterjadhi 94.27 Only UL MU Capable STAs update their MIBs. And they do so when certain conditions occure as defined in10.2.4.2. Change to something like this: The most recent MU EDCA Parameter Set element is used by an "UL MU Capable STA" to update the appropriate MIB variables, "as defined in 10.2.4.2 (HCF contention based channel access (EDCA))." Add quoted text as in comment. Revised – in principle with the comment. Modify the sentence to limit it to HE non-AP STAs and to reference section 27.2.3, as in the proposed text in doc . 4744 Alfred Asterjadhi 94.63 This sentence is unclear. Rephrase it so that it is clear that this is the time during which the STA is supposed to use the MU EDCA parames. Replace with "The MU EDCA Timer field indicates the duration of time, in units of TUs, during which the HE STA uses the provided MU EDCA parameters for the corresponding AC, as defined in 27.2.3 (Obtaining an EDCA TXOP for UL MU capable STAs). Revised – in principle with the comment. Modify the sentence by including the proposed changes in doc . 5843 Huizhao Wang 94.62 MU EDCA timer field description is not clear Change the sentence: "The MU EDCA Timer field indicates the duration of time, in units of 8 TUs, for which the provided MU EDCA parameters are used by an HE STA after reception of a Basic variant Trigger frame for the corresponding AC." To: "The MU EDCA Timer field indicates the duration of time, in units of 8 TUs, is used by an HE non-AP STA to disable EDCA function after reception of a Basic variant Trigger frame which contains User Info field AID matching its AID for the corresponding AC." Revised – agree in principle with the comment. Modify the sentence by including the changes defined in the proposed changes in doc . 5911 James Yee 94.31 The 2nd sentence of the paragraph describing the EDCA Parameter Set Update Count is a repeat of the description in 9.4.2.29 (802.11-2016) and is unnecessary. Delete the sentence. Rejected – the sentence clarifies that it is for MU EDCA parameters and not for EDCA parameters.