If this discussion is about Japan, then yes, VHT160 on the allowed channels for Japan, can be enabled now. Or is the question about enabling VHT80 & VHT160 in world mode(s) using passive scanning? Michael Green green at qca.qualcomm.com Qualcomm Atheros, Inc. 781-400-1491 (office) 508-380-4921 (cell) -----Original Message----- From: mcgrof@xxxxxxxxx [mailto:mcgrof at gmail.com] On Behalf Of Luis R. Rodriguez Sent: Tuesday, April 09, 2013 4:26 AM To: Johannes Berg Cc: John W. Linville; wireless-regdb at lists.infradead.org; Kandala, Srinivas; linux-wireless; qca_vkondrat; Green, Michael; Wang, Yunsen Subject: Re: [PATCH 2/3] wireless-regdb: enable VHT80 when world roaming On Mon, Apr 8, 2013 at 11:51 PM, Johannes Berg <johannes at sipsolutions.net> wrote: > On Mon, 2013-04-08 at 22:52 -0700, Luis R. Rodriguez wrote: >> From: "Luis R. Rodriguez" <mcgrof at do-not-panic.com> >> >> For VHT, the wider bandwidths (up to 160 MHz) need to be allowed. >> Since world roaming only covers the case of connecting to an AP, it >> can be opened up there, we will rely on the AP to know the local >> regulations. >> >> Based on a patch by Johannes Berg for upstream Linux. > >> --- a/db.txt >> +++ b/db.txt >> @@ -6,10 +6,10 @@ country 00: >> # Channel 14. Only JP enables this and for 802.11b only >> (2474 - 2494 @ 20), (3, 20), PASSIVE-SCAN, NO-IBSS, NO-OFDM >> # Channel 36 - 48 >> - (5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS >> + (5170 - 5250 @ 80), (3, 20), PASSIVE-SCAN, NO-IBSS >> # NB: 5260 MHz - 5700 MHz requies DFS >> # Channel 149 - 165 >> - (5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS >> + (5735 - 5835 @ 80), (3, 20), PASSIVE-SCAN, NO-IBSS > > I also have a separate upstream patch that I haven't sent here yet to > enable 160 MHz by enabling the radar channels (passively), see below; > any thoughts on that? Enabling it passively seems fine to me. Michael if we take care of DFS / passive scan, etc, are we still OK to use VHT160 if we find an AP that uses it on the DFS channels (assuming client follows channel change announcements, etc)? Luis
