On 9/19/2019 6:05 PM, Johannes Berg wrote:
Hi Tim,
I have been using the debug hw_sniffer_params file to tune the AX200 to a specific AID. This
works well for capturing OFDMA DL. But I have yet to capture any UL OFDMA frames, or at least I
don't think I have.
I am looking for QoS data frames that have HE_MU PPDU format. Is this correct?
I can see plenty of HE_SU PPDU frames from STA to AP, but no HE_MU uplink.
Am I looking for the wrong thing or can the AX200 not sniff OFDMA UL?
UL OFDMA frames should be HE_TB PPDU format, not HE_MU. They can only be
sent as a response to trigger frames, so all the participants are
synchronized etc.
johannes
Thanks, Johannes. I believe Wireshark shows HE_TB as HE_TRIG (0x3) under HE information > HE Data 1, correct?
