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Hi all, Based on the comments raised regarding the allowed transmission modes with 20us PE duration. My modifications are highlighted in yellow.
A PE field of duration 20
µs is only allowed in
an EHT PPDU with at least one participating STA being modulated with 4096-QAM, or in an EHT PPDU with more than 8 spatial streams transmitted on at least one RU/MRU, or in a 320 MHz EHT MU PPDU if
the size of the one of the allocated RU or MRU is greater than 2x996, or in a 320MHz (TBD) EHT TB PPDU.
I don’t think we need to talk about non-AP STA support of 20us transmit/receive in this section. Non-AP STA support of transmit/receive 20us PE duration should be described in HE PHY capabilities subfield “Nominal Packet
Padding”, and PPE Thresholds field section, as in 11ax. Besides, I don’t think the statement above indicates every non-AP STA has to support 20us PE duration since AP can schedule the non-AP STAs in EHT MU PPDU or EHT TB PPDU according to their PE support
indications. In this section, we just clarify what the specific properties are required for an EHT PPDU to be allowed to transmit with 20us PE duration. The statement
“an EHT PPDU with at least one participating STA being
modulated with 4096-QAM, or in an EHT PPDU with more than 8 spatial streams transmitted on at least one RU/MRU”
covers EHT MU PPDU with OFDMA, or MU-MIMO, and EHT TB PPDU with OFDMA, or MU-MIMO, and EHT MU PPDU with only one STA. Please let me know if you have other concerns. Thanks Yan To unsubscribe from the STDS-802-11-TGBE list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=STDS-802-11-TGBE&A=1 |