From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ali Abedi <a2abedi@uwaterloo.ca>
Date: Tue, 25 Jun 2013 12:04:22 -0400
Subject: [ath9k-devel] CSI support
In-Reply-To: <51C9BF5E.10607@mailservices.uwaterloo.ca>
References: <51C9BF5E.10607@mailservices.uwaterloo.ca>
Message-ID: <51C9BF86.4030600@mailservices.uwaterloo.ca>
List-Id: <ath9k-devel.lists.ath9k.org>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: ath9k-devel@lists.ath9k.org

Hello everyone,

I am also interested in accessing CSI. Please update us as soon as you 
got some good news.

Best,
Ali


On 13-04-02 08:18 AM, Nikolay Makarov wrote:
> Dear Andres,
>
> Adrian preliminary confirmed it is possible to get CSI out of 
> hardware. He helped me to send an internal request to Atheros to 
> assist on the issue. We sent the request 30 of March.
>
> I am not clear what to do next and I am waiting directions from Adrian 
> at the moment.
>
> I think that it might be helpful to send to Atheros another request 
> from you.
>
> Best regards,
> Nikolay Makarov
>
>
> On Tue, Apr 2, 2013 at 1:52 PM, Andr?s Garc?a Saavedra 
> <agsaaved at it.uc3m.es <mailto:agsaaved@it.uc3m.es>> wrote:
>
>     Hi Adrian, Nikolay,
>
>     any luck on this line? I am also interested in obtained CSI
>     information from hw for research purposes.
>
>     Thanks!
>     Andr?s
>
>
>     On Sun, Mar 10, 2013 at 10:43 AM, Nikolay Makarov
>     <opnmakarov at gmail.com <mailto:opnmakarov@gmail.com>> wrote:
>
>         Thank you very much Adrian. I would appreciate your help.
>
>         ? ?????????,
>         ??????? ???????
>         +7 (926) 284 80 81 <tel:%2B7%20%28926%29%20284%2080%2081>
>
>         On 10.03.2013, at 10:21, Adrian Chadd <adrian@freebsd.org
>         <mailto:adrian@freebsd.org>> wrote:
>
>         > On 8 March 2013 23:16, Nikolay Makarov <nmakarov@live.ru
>         <mailto:nmakarov@live.ru>> wrote:
>         >> Sorry. My bad.
>         >>
>         >> The CSI (channel state information) is similar to RSSI
>         which describes the
>         >> power of received signal. But unlike RSSI, CSI is energy
>         over multiple
>         >> subcarriers. In 802.11 g/n, there are 64 subcarriers. So
>         CSI is a vector
>         >> with 64 elements, each is a complex value. At the physical
>         layer of wifi,
>         >> they will do channel estimation, CSI is the channel
>         estimation results for
>         >> every subcarrier.
>         >
>         > Oh, right. Yes. I think there's a way to get the CSI out of
>         the hardware.
>         > I don't know any ETA for that though; sorry.
>         >
>         > I'll poke some people to see if I can get some documentation
>         about how
>         > to get CSI values and how to interpret them.
>         >
>         > Thanks,
>         >
>         >
>         >
>         > Adrian
>         _______________________________________________
>         ath9k-devel mailing list
>         ath9k-devel at lists.ath9k.org <mailto:ath9k-devel@lists.ath9k.org>
>         https://lists.ath9k.org/mailman/listinfo/ath9k-devel
>
>
>
>
>
> -- 
> ? ?????????,
> ??????? ???????
> +7 926 284 80 81
>
>
> _______________________________________________
> ath9k-devel mailing list
> ath9k-devel at lists.ath9k.org
> https://lists.ath9k.org/mailman/listinfo/ath9k-devel




-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.ath9k.org/pipermail/ath9k-devel/attachments/20130625/25e888f5/attachment.htm