Re: Precise time synchronization via wifi interface (intel AX201 iwlwifi driver)

[Wei Liu <wei.liu1011@gmail.com>]

Hi Toke,

Yes, it is challenging, but IEEE802.1AS already takes consideration of 
IEEE802.11 MAC. So I count on the standardization to take care of the 
challenge :)

Point being that the Intel AX201 card claims Timesync feature 
(https://www.mouser.com/pdfDocs/wi-fi-6-ax201-module-brief.pdf), which 
is based on IEEE802.1AS. So there must be some way to run gptp like 
application on the AX201 intel card.

I appreciate any help here if someone has relevant experiences.

Best,

Wei

On 3/5/2020 12:29 PM, Toke Høiland-Jørgensen wrote:
> Wei Liu <wei.liu1011@gmail.com> writes:
>
>> Hi,
>>
>> I am trying to achieve precise time synchronization via wifi
>> interface.
> Erm, good luck with that? :)
>
> You do realise that there's a whole bunch of stuff going on below the
> driver level (listen-before-send, etc) that makes 'precise' timing (as
> in microsecond-accuracy like ptp)... shall we just say challenging?
>
> -Toke
>