From: Wei Liu <wei.liu1011@gmail.com>
To: "Toke Høiland-Jørgensen" <toke@redhat.com>,
linux-wireless@vger.kernel.org, linuxwifi@intel.com
Subject: Re: Precise time synchronization via wifi interface (intel AX201 iwlwifi driver)
Date: Thu, 5 Mar 2020 14:57:37 +0100 [thread overview]
Message-ID: <627ba0df-e4c6-7fe6-0d1a-e3d77d35c564@gmail.com> (raw)
In-Reply-To: <87r1y72g60.fsf@toke.dk>
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
>
prev parent reply other threads:[~2020-03-05 13:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-05 9:07 Precise time synchronization via wifi interface (intel AX201 iwlwifi driver) Wei Liu
2020-03-05 11:29 ` Toke Høiland-Jørgensen
2020-03-05 13:57 ` Wei Liu [this message]
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