Yee In the bullet "The received PPDU is Please clarify. Revised Disagree – an PPDU (see 27.2.2 in principle with 8 (Intra-BSS and inter-BSS frame the comment. This determination)) defines that if you and the received PPDU is not a receive both the non-HT PPDU carrying a response RTS and the CTS, frame (Ack, BlockAck or you can still do SR. CTS frame), or the received PPDU If you receive only contains a CTS and a CTS, you can not transition from do SR. The BUSY to IDLE occurred within the sentence is PIFS time immediately preceding modified per the received CTS and that resolution to CID transition corresponded to the end 13929. of an inter-BSS PPDU that contained an RTS that was ignored following this procedure", it is not clear why the prior RTS can affect the STA's decision on later the received CTS and what if the this prior RTS is never received by the STA. Yongho "The received PPDU is an Change as the following: partially – Seok PPDU (see 27.2.2 (Intra-BSS and "The received PPDU is an with the inter-BSS frame determination)) BSS PPDU (see 27.2.2 (Intra-BSS commenter. Only and the received PPDU is not a and inter-BSS frame BA can be non-HT PPDU carrying a response determination)) and the classified as frame (Ack, BlockAck or CTS received PPDU is not a non-HT BSS PPDU. Ack and frame),..." PPDU carrying a response frame CTS can not. The prerequisite of the second (BlockAck),..." condition is that the received PPDU is an inter-BSS PPDU. Because the Ack and CTS frame can't be classifed as an inter-BSS PPDU, the prerequisite of the second condition never be met. Please remove the unnecessay example.
Yee In the bullet "The received PPDU is an PPDU (see 27.2.2 (Intra-BSS and inter-BSS frame determination)) and the received PPDU is not a non-HT PPDU carrying a response frame (Ack, BlockAck or CTS frame), or the received PPDU contains a CTS and a transition from BUSY to IDLE occurred within the PIFS time immediately preceding the received CTS and that transition corresponded to the end of an inter-BSS PPDU that contained an RTS that was ignored following this procedure", it is not clear why the prior RTS can affect the STA's decision on later the received CTS and what if the this prior RTS is never received by the STA. Please clarify. Revised – Disagree in principle with the comment. This defines that if you receive both the RTS and the CTS, you can still do SR. If you receive only CTS, you can not do SR. The sentence is modified per resolution to CID 13929. Yongho Seok "The received PPDU is an PPDU (see 27.2.2 (Intra-BSS and inter-BSS frame determination)) and the received PPDU is not a non-HT PPDU carrying a response frame (Ack, BlockAck or CTS frame),..." The prerequisite of the second condition is that the received PPDU is an inter-BSS PPDU. Because the Ack and CTS frame can't be classifed as an inter-BSS PPDU, the prerequisite of the second condition never be met. Please remove the unnecessay example. Change as the following: "The received PPDU is an PPDU (see 27.2.2 (Intra-BSS and inter-BSS frame determination)) and the received PPDU is not a non-HT PPDU carrying a response frame (BlockAck),..." – partially with the commenter. Only BA can be classified as PPDU. Ack and CTS can not. 8 BSS BSS