James Yee In the bullet "The received PPDU is Please clarify. Rejected This – an PPDU (see 27.2.2 defines that if you 8 (Intra-BSS and inter-BSS frame receive both the determination)) RTS and the CTS, and the received PPDU is not a you can still do SR. non-HT PPDU carrying a response If you receive only frame (Ack, BlockAck or CTS, you can not CTS frame), or the received PPDU do SR. 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. Yongho "The received PPDU is an inter-BSS Change as the following: Revised partially – Seok PPDU (see 27.2.2 (Intra-BSS and "The received PPDU is an agree 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),..." Remove CTS and condition is that the received apply the changes PPDU is an inter-BSS PPDU. as in doc 1852r0 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.
James 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. Rejected – 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. Yongho Seok "The received PPDU is an inter-BSS 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),..." Revised – partially agree with the commenter. Only BA can be classified as PPDU. Ack and CTS can not. Remove CTS and apply the changes as in doc 1852r0 8 BSS BSS
11-17-1852-00-00ax-cr-for-27-9.docx