2604 For VHT MU PPDU sent Modify the text to "Responses Revised- to A-MPDUs within a VHT to HE STA, MU-BAR Agree in principal. MU PPDU or an HE MU frame can additionally be PPDU that are not immediate used for soliciting TGax editor makes responses to the VHT MU responses. changes as shown in the PPDU or the HE MU PPDU as specified in are transmitted in response to explicit BlockAckReq or explicit MU-BlockAckReq frames by the AP.". 2487 "A non-AP STA that is the As per comment Rejected- recipient, within a HE MU VHT MU PPDU can not PPDU, of an MPDU that solicit immediate solicits an immediate responses in UL MU response with Ack Policy format from the target HE '01' in QoS Control STAs. shall send the immediate It additional response according to the complexity to the scheduling information receiver. defined by the UL trigger information that is carried either in the Trigger frame(s) or in MAC header." When the HE AP transmits the VHT MU PPDU that is destined to VHT STAs and HE STAs, the VHT MU PPDU can also solicit immediate responses from the target HE STAs with Ack Policy '01'. Change the corresponding sentence as the following: "A non-AP STA that is the recipient, within a VHT MU PPDU or an HE MU PPDU, of an MPDU that solicits an immediate response with Ack Policy '01' in QoS Control field, shall send the immediate response according to the scheduling information defined by the UL trigger information that is carried either in the Trigger frame(s) or in MAC header." 2396 The BA cannot be Insert the following sentence Rejected- in the paragraph as below: sent within EIFS duration Regarding the below When receiving multiple in 20MHz bandwidth for proposed wording, frames from more than one MCS0 and Nss=1, even in BlockAck or Multi-STA “If STA that are part of an UL single user case. Specific BlockAck frames are MU transmission (Clause transmitted, it should be rules to transmit BlockAck 9.42.2) and that require an transmitted using frames or Multi-STA
2604 For VHT MU PPDU sent to HE STA, MU-BAR frame can additionally be used for soliciting responses. Modify the text to "Responses to A-MPDUs within a VHT MU PPDU or an HE MU PPDU that are not immediate responses to the VHT MU PPDU or the HE MU PPDU are transmitted in response to explicit BlockAckReq or explicit MU-BlockAckReq frames by the AP.". Revised- Agree in principal. TGax editor makes changes as shown in the as specified in 2487 "A non-AP STA that is the recipient, within a HE MU PPDU, of an MPDU that solicits an immediate response with Ack Policy '01' in QoS Control shall send the immediate response according to the scheduling information defined by the UL trigger information that is carried either in the Trigger frame(s) or in MAC header." When the HE AP transmits the VHT MU PPDU that is destined to VHT STAs and HE STAs, the VHT MU PPDU can also solicit immediate responses from the target HE STAs with Ack Policy '01'. Change the corresponding sentence as the following: "A non-AP STA that is the recipient, within a VHT MU PPDU or an HE MU PPDU, of an MPDU that solicits an immediate response with Ack Policy '01' in QoS Control field, shall send the immediate response according to the scheduling information defined by the UL trigger information that is carried either in the Trigger frame(s) or in MAC header." As per comment Rejected- VHT MU PPDU can not solicit immediate responses in UL MU format from the target HE STAs. It additional complexity to the receiver. 2396 The BA cannot be sent within EIFS duration in 20MHz bandwidth for MCS0 and Nss=1, even in single user case. Specific rules to transmit BlockAck frames or Multi-STA Insert the following sentence in the paragraph as below: When receiving multiple frames from more than one STA that are part of an UL MU transmission (Clause 9.42.2) and that require an Rejected- Regarding the below proposed wording, “If BlockAck or Multi-STA BlockAck frames are transmitted, it should be transmitted using
11-16-0861-01-00ax-comment-resolution-on-mu-acknowledgment-procedure.docx