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802.11x refers to a group of evolving wireless local area network (WLAN) standards that are under development as elements of the IEEE 802.11 family of specifications, but that have not yet been formally approved or deployed. As of August 2004, these incomplete standards included the following:
- 802.11e -- Adds Quality of Service (QoS) features to existing 802.11 family specifications
- 802.11f -- Adds Access Point Interoperability to existing 802.11 family specifications
- 802.11h -- Resolves interference issues with existing 802.11 family specifications
- 802.11j -- Japanese regulatory extensions to 802.11 family specifications
- 802.11k -- Radio resource measurement for 802.11 specifications so that a wireless network can be used more efficiently
- 802.11m -- Enhanced maintenance features, improvements, and amendments to existing 802.11 family specifications
- 802.11n -- Next generation of 802.11 family specifications, with throughput in excess of 100 Mbps
These standards are being developed with the goal that they support all the 802.11 family specifications in current use.
802.11x is also sometimes used as a generic term for any existing or proposed standard of the 802.11 family.