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Re: [PATCH v3 v3] mac80211: 160MHz support per IEEE802.11ax standard

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On 13/11/2020 11:04, Johannes Berg wrote:
On Sun, 2020-11-08 at 10:11 +0200, Shay Bar wrote:
On 06/11/2020 12:35, Johannes Berg wrote:
On Mon, 2020-10-19 at 16:26 +0300, Shay Bar wrote:
According to the new IEEE802.11ax standard center frequency of the 160MHz
should be published in segment2 field of HT operation IE when using EXT NSS
(when supporting smaller number of NSS in VHT in 160MHz BW).
No, it is referring to IEEE P802.11-REVmd™/D5.0, September 2020 Table
9-81- "Setting of the Channel Width subfield and 160/80+80 BW subfield
at a VHT STA transmitting the Operating Mode field" (where it doesn't
refer to OM)
But you said above "according to the new IEEE802.11ax"? I guess that
confuses me.

Or did D5.0 incorporate 802.11ax? But that seems unlikely, 802.11ax D8.0
was still in circulation until yesterday, i.e. after you sent the patch?

"Setting of the VHT Channel Width and VHT NSS at an HE STA transmitting the OM Control subfield" table in the 802.11ax D* files is identical to the "Setting of the Channel Width subfield and 160/80+80 BW subfield at a VHT STA transmitting the Operating Mode field" table in the Draft P802.11REVmd_D* files.

This is the source of confusion, sorry :)

The nl80211.c change is also described in the first 3 rows of Table
9-274 "VHT Operation Information subfields".
OK, thanks, I'll have to check that out.
Thanks.



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