the primary AC and at least one secondary AC, the frames in the primary AC queue shall be transmitted to the destination first, among a series of downlink transmissions within a TXOP. The decision of which secondary ACs and destinations are selected for TXOP sharing, as well as the order of transmissions, are implementation specific and out of scope for this specification. (28) When sharing, the TXOP duration that applies is the TXOP limit of the primary AC. NOTE—An AP can protect the immediate response by preceding the VHT MU PPDU (which might have TXVECTOR parameter NUM_USERS > 1) with an RTS/CTS exchange or a CTS-to-self transmission. (29) An illustration of TXOP sharing is shown in Illustration of TXOP sharing and PPDU construction. In this figure, the AP has frames in queues of three of its ACs. It is assumed that the TXOP was obtained by AC_VI and is shared by AC_VO and AC_BE. It is also assumed that these frames are targeting three STAs, STA-1 to STA-3. Illustration of TXOP sharing and PPDU construction(11ac)
the primary AC and at least one secondary AC, the frames in the primary AC queue shall be transmitted to the destination first, among a series of downlink transmissions within a TXOP. The decision of which secondary ACs and destinations are selected for TXOP sharing, as well as the order of transmissions, are implementation specific and out of scope for this specification. (28) When sharing, the TXOP duration that applies is the TXOP limit of the primary AC. NOTE—An AP can protect the immediate response by preceding the VHT MU PPDU (which might have TXVECTOR parameter NUM_USERS > 1) with an RTS/CTS exchange or a CTS-to-self transmission. (29) An illustration of TXOP sharing is shown in Illustration of TXOP sharing and PPDU construction. In this figure, the AP has frames in queues of three of its ACs. It is assumed that the TXOP was obtained by AC_VI and is shared by AC_VO and AC_BE. It is also assumed that these frames are targeting three STAs, STA-1 to STA-3. Illustration of TXOP sharing and PPDU construction(11ac)
11-14-0533-03-000m-proposed-resolution-for-revmc-cid-2458.docx