Date: Wed, 24 Sep 2014 20:33:15 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-wireless@FreeBSD.org Subject: [Bug 193907] New: [ath] in HT40 mode set the final rate table entry to be 20MHz, just in case HT40 reception is terrible. Message-ID: <bug-193907-21060@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193907 Bug ID: 193907 Summary: [ath] in HT40 mode set the final rate table entry to be 20MHz, just in case HT40 reception is terrible. Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: Needs Triage Severity: Affects Only Me Priority: --- Component: wireless Assignee: freebsd-wireless@FreeBSD.org Reporter: adrian@freebsd.org It may be that transmitting 40MHz rates (eg in HT40 2GHz mode) performs really crappy due to adjacent channel interference. So: * teach ath_rate_sample to set the 20MHz flag for the final rate in the rate table, so there's at least a good fallback * .. and then maybe have it track how good 20/40 rates are and if too many fallbacks to 20MHz is done, just fallback to transmitting on 20MHz for a while. -- You are receiving this mail because: You are the assignee for the bug.
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