Discussion: Yes, there is no precedent usage of such term trigger”. Propose to use “unicast “an individually addressed Trigger frame” to replace trigger”. “unicast Proposed Resolution: already fixed in D0.5. 964 42.00 10.3.2.11.3 The figure 10-ax4, "Backoff or Please clarify it. PIFS " is confusing. Does "Backoff or PIFS " mean that an AP uses bacoff or PIFS to contend the primary channel or an AP uses backoff to contend the primary channel and PIFS to determine the status of the sencondary channels? Discussion: are multiple cases that a PIFS could be used. Please refer to 10.3.2.3.4 and also TWT operation. However, the TXOP is not accurately drew in the figure. Proposed Resolution: Remove in all the figures (10.ax4-10.ax8) to eliminate confusion. “PIFS” 823 43.01 10.3.2.11.3 If spec does not allow UL MU Change the following MIMO Block ACK and Ack An AP shall not set Ack Policy policy, STAs with UL MU MIMO to "01" in QoS Control field in capability and without UL MU MPDUs of HE MU PPDU if OFDMA capablity cannot be the (both) UL MU OFDMA Capable target of Ack Policy '01' in QoS subfield (and UL MU MIMO Control field in MPDUs. Capable subfield) of the HE Capabilities element of the receiver of the MPDUs are set to 0. or Specify MU MIMO Ack procedure Discussion: In general, agree with the commenter’s intention to differentiate UL MUMIMO and UL MU OFDMA capability. To remove confusion, the paragraph is to be deleted. Also see CID 2607 Proposed Resolution: Already fixed in D0.5 798 44.46 10.3.2.11.4 in Figure 10-ax5, TXOP starts Make the figures consistent or from the middle of the Backoff describe the difference in or PIFS. On the other hand, all Figure 10-ax5 TXOP start from the beginning of the Trigger frame
Discussion: Yes, there is no precedent usage of such term “unicast trigger”. Propose to use “an individually addressed Trigger frame” to replace “unicast trigger”. Proposed Resolution: already fixed in D0.5. 964 42.00 10.3.2.11.3 The figure 10-ax4, "Backoff or PIFS " is confusing. Does "Backoff or PIFS " mean that an AP uses bacoff or PIFS to contend the primary channel or an AP uses backoff to contend the primary channel and PIFS to determine the status of the sencondary channels? Please clarify it. Discussion: are multiple cases that a PIFS could be used. Please refer to 10.3.2.3.4 and also TWT operation. However, the TXOP is not accurately drew in the figure. Proposed Resolution: Remove “PIFS” in all the figures (10.ax4-10.ax8) to eliminate confusion. 823 43.01 10.3.2.11.3 If spec does not allow UL MU MIMO Block ACK and Ack policy, STAs with UL MU MIMO capability and without UL MU OFDMA capablity cannot be the target of Ack Policy '01' in QoS Control field in MPDUs. Change the following An AP shall not set Ack Policy to "01" in QoS Control field in MPDUs of HE MU PPDU if (both) UL MU OFDMA Capable subfield (and UL MU MIMO Capable subfield) of the HE Capabilities element of the receiver of the MPDUs are set to 0. or Specify MU MIMO Ack procedure Discussion: In general, agree with the commenter’s intention to differentiate UL MUMIMO and UL MU OFDMA capability. To remove confusion, the paragraph is to be deleted. Also see CID 2607 Proposed Resolution: Already fixed in D0.5 798 44.46 10.3.2.11.4 in Figure 10-ax5, TXOP starts from the middle of the Backoff or PIFS. On the other hand, all TXOP start from the beginning of the Trigger frame Make the figures consistent or describe the difference in Figure 10-ax5
11-16-1332-02-00ax-some-cids-on-mu-acknowledgement-procedure.docx