802.11ax Lessons Learned | Wes Purvis | WLPC Phoenix 2020

Chapters:
00:00 - Start
01:16 - Recent Wi-Fi Timeline
02:03 - Where are we in the Wi-Fi 6 HYPE Lifecycle?
04:03 - Stability Above All Else
05:26 - The Culprit
06:31 - Mitigation Techniques
08:47 - What's working in Wi-Fi 6?
10:50 - Spatial Reuse
12:10 - Target Wait Time (TWT)
13:01 - MU-MIMO
14:26 - MU-MIMO + OFDMA
16:28 - General State of OFDMA
18:39 - OFDMA in the Wild Uplink
19:55 - OFDMA in the Wild Downlink
21:05 - OFDM Waveform
23:02 - 8 User Uplink OFDMA
23:32 - OFDMA Concurrent Users
25:36 - Max OFDMA Users at one time
30:27 - Datarate Overload
31:57 - 802.11AX Design
32:54 - Migrating From 802.11N or 802.11ac
34:10 - Considerations For Deploying Wi-Fi 6
37:21 - Qualcomm and BroadCom
39:34 - 4x4 vs. 8x8 Access Point
42:47 - MULTIGIGABIT
43:37 - Does 802.11AX Require A Switch Upgrade?
45:44 - Wi-Fi 6 Clients
47:36 - Wi-Fi 6 Troubleshooting
48:27 - Capturing Single User Wi-Fi 6 Data Traffic
49:40 - Capturing Multi-User Data Traffic
51:41 - WIi-Fi 6E
52:36 - Achieving 1.2 GHz(1,200MHz) of New Wi-Fi in the US
52:56 - Wi-Fi 6E in The EU
53:07 - Wi-Fi 6E in the UK

[sarode]

15:32, In your explanation of MU-MIMO + OFDMA. Having wider RU for far away clients will reduce the range of the clients (decrease in SNR, noise increases over BW). Closer clients should be given larger RU's so that they can handle higher capacity.

[jeffm]

So many home users jumping on the wagon not realizing that 90% of the devices in the home don't support the benefits of AX and are not going to. IOT devices being a good example. Not to mention they don't really get any advantages out of 1024 QAM or OFDMA in that normal home environment. Years from now, sure, but people are still going to have that same old IOT device for years.

[sarode]

Thanks for the presentation, some inconsistencies I would like to point out:
time 21:26: You have mentioned 106 RU . A RU is 2 MHz, then your total BW is 212MHz. I think what you meant was 106 tones.