27.9.2.2 338.23 The devices have temptation to increase the time when a Revised We can extend the – set the STA cannot use spatial reuse rule to the current beacon after transmitting a frame interval and the previous value at the end of with beacon interval. Apply the the beacon period, because changes as proposed in . there is no penalty for doing it, Set allow i.e. the time when reuse cannot the spatial reuse only after be used for non-SRG the following beacon period, transmissions is only to the next i.e. after two beacon TBTT. This may cause variation transmissions, or when STAs allow the reuse. alternatively calculate the When reuse is allowance varies, duration of one beacon then the interfernce level varies period from the time when as well. In order to minimize the frame with interference level variation for more precise link adaptation, was the interference level should transmitted. not vary. Also there should not be easy benefits for denying other STAs to use the SRG at transmissions at the end of the beacon period. 15175 27.9.2.2 338.25 The settings and where this As in comment. values are allowed or not allowed is still very confusing. Suggest to have a table that mentions where certain settings of this SPATIAL REUSE are allowed and were they are not. 15742 27.9.2.2 338.36 It is unclear why RTS needs to Delete the sentence Rejected RTS is mentioned – be mentioned in the spatial starting:"or the received..." here because there is a special reuse rules. If CTS is received, case where OBSS_PD is then it will deny the spatial allowed when receiving both reuse. The complicated RTS and CTS. sentences on possible RTS reception before the CTS frame are not needed. The sentence does not enable any special operation when RTS is received.
27.9.2.2 338.23 The devices have temptation to set the value at the end of the beacon period, because there is no penalty for doing it, i.e. the time when reuse cannot be used for non-SRG transmissions is only to the next TBTT. This may cause variation when STAs allow the reuse. When reuse is allowance varies, then the interfernce level varies as well. In order to minimize interference level variation for more precise link adaptation, the interference level should not vary. Also there should not be easy benefits for denying other STAs to use the SRG at transmissions at the end of the beacon period. increase the time when a STA cannot use spatial reuse after transmitting a frame with Set allow the spatial reuse only after the following beacon period, i.e. after two beacon transmissions, or alternatively calculate the duration of one beacon period from the time when the frame with was transmitted. Revised – We can extend the rule to the current beacon interval and the previous beacon interval. Apply the changes as proposed in . 15175 27.9.2.2 338.25 The settings and where this values are allowed or not allowed is still very confusing. Suggest to have a table that mentions where certain settings of this SPATIAL REUSE are allowed and were they are not. As in comment. 15742 27.9.2.2 338.36 It is unclear why RTS needs to be mentioned in the spatial reuse rules. If CTS is received, then it will deny the spatial reuse. The complicated sentences on possible RTS reception before the CTS frame are not needed. The sentence does not enable any special operation when RTS is received. Delete the sentence starting:"or the received..." Rejected – RTS is mentioned here because there is a special case where OBSS_PD is allowed when receiving both RTS and CTS.
11-18-1495-02-00ax-cr-for-obss-pd.docx