I use an intel x86 Linux PC and mount a wifi 6 module on it. The module is designed on the WCN6856 chipset. The Linux kernel is version 5.17 with the ath11k wifi driver. I use the iperf/iperf3 utility to test the capability of the module. Since the HW supports 80MHz bandwidth and 2x2 mimo stream, the physical rate can reach up to 1200 Mb/s. The uplink data throughput can only reach around 350 Mb/s. However, when I test the downlink, the data rate can reach up to 1 Gb/s and meets the physical capability. As a result, the RF channel should be fine.
Besides, if I use the multiple UDP streams with iperf command -P 6 or 8, the data throughput looks normal as the downlink, around 1 Gb/s.
I build up an end-to-end testing environment. To minimisze the interference from the exsting wifi signal, I have found a shielding environment to test. If everything is normal, the iperf result should be up to 1Gb/s due to some header is removed. I have used the latest wifi FW to conduct the experiment.
The following is the test setup.
|x86 Linux ubuntu 20.04 server|---ethernet---|wifi 6 AP|--- RF cable ---| x86 PC debian 11 with wifi6 module (client)|
command: on server: iperf -s -u -i 1 on client: iperf -c [server ip] -u -i 1 -b 1200M -P 1
