Hi list, I just stumbled on this patch that IMHO was rejected for a bad reason: [PATCH v3 4/4] cfg80211: DFS use 10 minutes CAC when weather channels At http://www.spinics.net/lists/linux-wireless/msg115296.html The reason given is the "unachievable" requirement in the ETSI norm of 99.99% detection success. It was even considered disabling the weather channels. *But the norm (ETSI EN 301 893 V1.7.1) does not say this.* It states that 99.99% is the target performance: - during conformance tests only, (5.3.8.1.1 paragraph 5) - specifically *not* a requirement with specific real life radars, (5.3.8.1.1 paragraph 5) - on a limited series of 20 tests, (5.3.8.2.1.2 item g) - with a pulse power at +10dB above other pulse detection tests, (5.3.8.2.1.2 item f) - with some patterns excluded from the test. (5.3.8.2.1.2 item g) Hence it is very possible that existing products can achieve the conformance test target. That being said, would it be possible to reexamine that dropped patch and apply it? Best regards, Jean-Pierre Tosoni -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
