Show pagesourceOld revisionsBacklinksBack to top × Table of Contents Wireless Standards 802.11a 802.11b 802.11g 802.11n 802.11ac 802.11ad 802.11ax Features in Drivers Links Wireless Standards This article lists common standards and basic features that are relevant to OpenWrt. 802.11a Old standard that operates in 5GHz frequency band IEEE_802.11a-1999 802.11b IEEE_802.11b-1999 Operates in 2.4GHz Band Old standard. 802.11g IEEE_802.11g-2003 Operates in 2.4GHz Band Old standard. 802.11n IEEE_802.11n-2009 802.11ac IEEE_802.11ac Also called “Wifi 5” 802.11ad IEEE_802.11ad Not very common in OpenWrt. 802.11ax IEEE_802.11ax Also called “Wifi 6” Features in Drivers Each hardware has certain features that can be queried in OpenWrt by using iw phy <phy interface> info Mismatching features result in compatibility problems and possibly reduced data transfer rates. example: RX LDPC HT20/HT40 SM Power Save disabled RX HT20 SGI RX HT40 SGI TX STBC RX STBC 1-stream Max AMSDU length: 3839 bytes DSSS/CCK HT40 MIMO multiple-input and multiple-output Technology that uses multiple antennas to increase data transfer rates. see also MCS tables STBC is part of MIMO. MU-MIMO HT, VHT, HE Required for higher throughput - 802.11n, 802.11ac, 802.11ax standards. HT ... 802.11n , VHT ... 802.11ac, HE ... 802.11ax HT20 : 20 MHz wide channels HT40: 40 MHz VHT80 : 80 MHz VHT160: 160MHz see also MCS table MCS Modulation and Coding Scheme often visualized as a table. The MCS Index is a value that the hardware supports and uses when communicating. Low data rates mean the higher indexes are not used. Reasons might be configuration or interference. RSDB DBDC Acronym for Radio Simultan Dual Band, Dual Band Dual Concurrent Use two frequency bands at the same time by one endpoint. Supported by: mt76 and potentially brcmfmac ( BCM4359 ) Normally radios operate in Single Band Single Concurrent (SBSC) (OpenWrt: 802.11an, 802.11bgn) or are capable of Dual Band Single Concurrent (DBSC): having 2 frequency bands selectable (OpenWrt: 802.11abgn capable). WOW Wake On Wlan Wake-on-LAN Links some MCS Tables This website uses cookies. By using the website, you agree with storing cookies on your computer. Also you acknowledge that you have read and understand our Privacy Policy. If you do not agree leave the website.OKMore information about cookies Last modified: 2021/03/15 05:05by plntyk