190.22 27.9.1 In "... not update its NAV As in the Rejected may not – 3196 timers based on frames comment update its NAV is valid carried in the PPDU ...", for all possible NAV for consistency, it should updates, be there with be stated that the STA TxOP field in HE-SIG-A may not update its NAV or with MAC frame. based on TXOP field in the HE SIG-A if present 6025 190.36 27.9.2.1 The spatial reuse rules are Please clarify. Revised clarify the – not easy-to-understand. Is rules for the the reuse allowed only for transmission of the SR the PPDU duration when PPDU by defining an HE MU PPDU is OBSS_PD SR transmitted and in all opportunity, as in the other cases the channel proposed changes in may be considered as IDLE doc . and there is no limitation of the duration when the spatial reuse may be performed? 7823 190.24 27.9.2.1 Inconsistency in basic NAV Add "or cannot be Rejected the SR – operation. At P150L36, identified as operation only applies P151L1 and P151L28, a BSS or inter-BSS" to PPDUs that can be frame (matching the other to the first bullet. identified as inter-BSS. If criteria) that is "cannot be they can not be identified as intra-BSS or classified, then the SR inter-BSS" will update the conditions are not met basic NAV. But at and SR is not possible. P190L24, does not include the "cannot be determined" case. 8233 190.24 27.9.1 The rules starting on line Clarify Rejected The rules in – 24 are not clear. Does it SR are orthogonal to the mean that both of the NAV timers. SR simply NAV timers are not going allows to not update the to be updated if the PPDU NAV if specific is an inter-BSS PPDU? It conditions are met. If seems there is a those conditions are not contradiction with the met, the NAV rules rules for updating the two apply. NAV timers
3196 190.22 27.9.1 In "... not update its NAV timers based on frames carried in the PPDU ...", for consistency, it should be stated that the STA may not update its NAV based on TXOP field in the HE SIG-A if present As in the comment Rejected – may not update its NAV is valid for all possible NAV updates, be there with TxOP field in HE-SIG-A or with MAC frame. 6025 190.36 27.9.2.1 The spatial reuse rules are not easy-to-understand. Is the reuse allowed only for the PPDU duration when HE MU PPDU is transmitted and in all other cases the channel may be considered as IDLE and there is no limitation of the duration when the spatial reuse may be performed? Please clarify. Revised – clarify the rules for the transmission of the SR PPDU by defining an OBSS_PD SR opportunity, as in the proposed changes in doc . 7823 190.24 27.9.2.1 Inconsistency in basic NAV operation. At P150L36, P151L1 and P151L28, a frame (matching the other criteria) that is "cannot be identified as intra-BSS or inter-BSS" will update the basic NAV. But at P190L24, does not include the "cannot be determined" case. Add "or cannot be identified as or inter-BSS" to the first bullet. Rejected – the SR operation only applies to PPDUs that can be identified as inter-BSS. If they can not be classified, then the SR conditions are not met and SR is not possible. 8233 190.24 27.9.1 The rules starting on line 24 are not clear. Does it mean that both of the NAV timers are not going to be updated if the PPDU is an inter-BSS PPDU? It seems there is a contradiction with the rules for updating the two NAV timers Clarify Rejected – The rules in SR are orthogonal to the NAV timers. SR simply allows to not update the NAV if specific conditions are met. If those conditions are not met, the NAV rules apply. BSS
11-17-0267-01-00ax-cr-for-25-9-2-2-obss-pd-spatial-reuse.docx