802.11ax draft6.0.pdf
P802.11ax/D6.0, Nov 2019 - IEEE Draft Standard for Information Technology -- Telecommunications and Information Exchange Between Systems Local and Metropolitan Area Networks -- Specific Requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment Enhancements for High Efficiency WLAN from https://ieeexplore.ieee.org/document/8935585