8214 Clause 27.2.3 doesn specify explain which counters are Revised in – Aboulmagd clearly when an EDCA for UL involved in obtaining the principle with the MU Capable STAs is obtained. TXOP. Does comment. Clarify the It focuses on the different HEMUEDCATimer[AC] spec by changing the parameter settings. only used to contrl the values spec text as in the of Cwmin, Cwmax, etc as proposed changes in implied in the last paragarph doc . of this clause. Need to be clear 8264 Pascal HEMUEDCATimer[AC] shall Please clarify when Revised Clarify that – uniformly count down to 0. Is countdown is executed. can not be any this countdown continuously suspensions. Modify performed along time, or is the the sentence as countdown suspended in defined in the between each medium access proposed changes in (that means only counting fdoc . down during contention procedure periods) ? 8295 Patrice When a STA is in MU EDCA Proposal: "The HE Rejected this – Nezou mode, how the QoS data are based PPDU is built based on comment does not selected from the ACs ? the current backoff values of to this section, ACs. The backoff values but to subclause must be updated after the 27.10.4 A-MPDU transmission". with multiple TIDs where these rules are already defined. 8296 Patrice When a STA switches from Proposal: "The backoff values Rejected the spec – MU EDCA to EDCA, how the must be resetted and CW is currently says that backoff are restored ? set to when switching only the CWmin,max from MU EDCA to EDCA." and AIFSN values are updated, not the backoff nor the CW. The backoff and CW are updated on legacy procedures, using the updated parameters. The intent is not to reset CW and backoff values. 8297 Patrice A STA, exchanging QoS data Disable MU transmission Revised add , as – Nezou frame with another in DLS mode when direct link described in the mode and setting in MU transmissions are initiated by proposed text in doc EDCA mode, cannot transmit sending a containing an any QoS data frame related to OMI A-Control field, and the DLS transmission because reset EDCA parameters. the scheduled RU allocated by the AP are dedicated to transmit QoS data frame to the AP.
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
11-17-0204-05-00ax-cid-for-27-2-3-mu-edca-parameters.docx