From: Johannes Berg <johannes@sipsolutions.net>
To: Ben Greear <greearb@candelatech.com>
Cc: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: Re: Allowing station to over-ride default VHT-oper element?
Date: Wed, 10 Jun 2015 21:55:20 +0200 [thread overview]
Message-ID: <1433966120.3145.15.camel@sipsolutions.net> (raw)
In-Reply-To: <5578901C.60502@candelatech.com> (sfid-20150610_212943_327894_FFEA768B)
On Wed, 2015-06-10 at 12:29 -0700, Ben Greear wrote:
> First, is this even a valid thing to do, or does VHT imply
> that stations are always available to do 80Mhz?
According to the spec, a VHT STA must support 80 MHz:
802.11ac-2013, 22.1.1:
A VHT STA shall support the following features:
[...]
- 20 MHz, 40 MHz, and 80 MHz channel widths
Consequently, there's no bit indicating whether or not 80 MHz bandwidth
is supported (like there is, for VHT, indicating 40 MHz is supported or
not.)
Also it is invalid to advertise a VHT capabilities IE and an HT
capabilities IE without 40 MHz.
johannes
next prev parent reply other threads:[~2015-06-10 19:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-10 19:29 Allowing station to over-ride default VHT-oper element? Ben Greear
2015-06-10 19:55 ` Johannes Berg [this message]
2015-06-10 19:58 ` Ben Greear
2015-06-10 20:01 ` Johannes Berg
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