May 2023 IEEE 802.11-23/0807r0 UL MU-MIMO Updates
"Explore the latest updates in UL MU-MIMO technology for IEEE 802.11 utilizing S1G and TB-PPDU formats. Discover enhanced features for camera and video applications, along with changes in trigger frames and sounding methods to improve efficiency and resource allocation."
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May 2023 doc.: IEEE 802.11-23/0807r0 S1G+ UL MU-MIMO Date: 2023-05-10 Authors: Name Affiliation Address Phone email David Halasz Morse Micro dave.halasz@morsemicro.com Ganesan Thiagarajan Morse Micro ganesan.thiagarajan@morsemicro.com Dave Goodall Morse Micro dave@morsemicro.com Submission Slide 1 Dave Halasz, Morse Micro
May 2023 doc.: IEEE 802.11-23/0807r0 Abstract Follow up submission to 11-22/1831, which is about updating Sub 1 GHz with functionality already in the IEEE 802.11 specification. Three functionalities identified were, 1024 QAM Uplink Multi User MIMO Preamble Puncturing This submission reviews UL MU-MIMO changes from High Efficiency(.11ax) to Sub 1 GHz(.11ah) Submission Slide 2 Dave Halasz, Morse Micro
May 2023 doc.: IEEE 802.11-23/0807r0 Faster Use Case Camera & Video Use Case IEEE 802.11ah useful for low power cameras and video. UL MU-MIMO will enable greater number of concurrent camera streams. Submission Slide 3 Dave Halasz, Morse Micro
May 2023 doc.: IEEE 802.11-23/0807r0 Changes Identified S1G-TB-PPDU format will be new Sounding changes from High Efficiency Trigger frames from High Efficiency Broadcast TWT for scheduling DL/UL MU-MIMO High Efficiency MAC to enable the above Other : PICS & MIB Submission Slide 4 Dave Halasz, Morse Micro
May 2023 doc.: IEEE 802.11-23/0807r0 S1G TB PPDU Will need to introduce S1G TB PPDU, analogous to the HE TB PPDU Submission Slide 5 Dave Halasz, Morse Micro
May 2023 doc.: IEEE 802.11-23/0807r0 Sounding changes from High Efficiency More efficient sounding Trigger MAC/Control frame (11ax) Submission Slide 6 Dave Halasz, Morse Micro
May 2023 doc.: IEEE 802.11-23/0807r0 Trigger frames from High Efficiency Allocates resources for and solicits one or more HE TB PPDU transmissions Basic Trigger - For data BFRP Trigger - For HE trigger based sounding MU-BAR - Multi User Block Ack Request MU-RTS - For protection of data BSRP - Buffer Status Report Assists AP in allocating UL MU resources GCR MU-BAR - Groupcast w/retries BAR BQRP - Bandwidth Query Report Assists AP in allocating UL MU resources NFRP - NDP Feedback Report Submission Slide 7 Dave Halasz, Morse Micro
May 2023 Broadcast TWT for scheduling DL/UL MU- MIMO High Efficiency brought in Broadcast TWT to have different clients have their traffic scheduled at the same time. doc.: IEEE 802.11-23/0807r0 S1G to follow additional rules in 26.8 (TWT operation) which includes Broadcast TWT. Submission Slide 8 Dave Halasz, Morse Micro
May 2023 doc.: IEEE 802.11-23/0807r0 High Efficiency MAC to enable the above Go through the HE MAC for sections. Not bringing in OFDMA. Will also look to simplify. Examples of sections will be bringing in, 26.7 HE sounding protocol 26.8 TWT operation etc Submission Slide 9 Dave Halasz, Morse Micro
May 2023 doc.: IEEE 802.11-23/0807r0 References Submission Slide 10 Dave Halasz, Morse Micro
