From: Denis Kenzior <denkenz@gmail.com>
To: James Prestwood <prestwoj@gmail.com>,
Simonas Kazlauskas <iwd.lists.linux.dev@kazlauskas.me>
Cc: iwd@lists.linux.dev
Subject: Re: Is the data rate estimation for 5GHz channels overly pessimistic?
Date: Tue, 24 Oct 2023 10:32:37 -0500 [thread overview]
Message-ID: <1740def7-87b2-4d14-a6b1-c4522b9dcbf1@gmail.com> (raw)
In-Reply-To: <8a9039e3-1db3-459f-874b-e53d8dcdc16d@gmail.com>
Hi James,
>>
>> They are not made up, they're direct from 802.11. But again, they're the
>> _minimum_ specified sensitivity. Hardware typically does better.
>
> The rates/MCS table (ht_vht_rates) is from 802.11, but the mapping from RSSI to
> MCS index's (ht_vht_he_base_rssi) is not. The spec just has a formula for
> calculating the rate using a given MCS/channel width. IWD just chooses what it
> thinks the MCS will be for a given RSSI.
Sheesh! Everything is directly from 802.11.
80211-2020.pdf, page 2835, Table 17-18.
80211ax-2021.pdf, page 642, Table 27-51
>
> I don't remember exactly where I got those values from but this seems to match:
>
The spec?
Regards,
-Denis
next prev parent reply other threads:[~2023-10-24 15:32 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-14 9:23 Is the data rate estimation for 5GHz channels overly pessimistic? Simonas Kazlauskas
2023-10-14 16:02 ` James Prestwood
2023-10-14 17:36 ` Denis Kenzior
2023-10-14 17:45 ` Simonas Kazlauskas
2023-10-14 18:07 ` Denis Kenzior
2023-10-15 19:40 ` Simonas Kazlauskas
2023-10-16 11:35 ` James Prestwood
2023-10-16 12:38 ` James Prestwood
2023-10-16 19:12 ` Denis Kenzior
2023-10-16 20:20 ` Simonas Kazlauskas
2023-10-21 23:23 ` Simonas Kazlauskas
2023-10-22 20:14 ` Denis Kenzior
2023-10-24 12:32 ` James Prestwood
2023-10-24 14:26 ` Denis Kenzior
2023-10-24 15:06 ` James Prestwood
2023-10-24 15:32 ` Denis Kenzior [this message]
2023-10-24 15:40 ` James Prestwood
2023-10-24 15:19 ` Simonas Kazlauskas
2023-10-24 15:29 ` Denis Kenzior
2023-10-16 18:36 ` Denis Kenzior
2023-10-14 17:42 ` Simonas Kazlauskas
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