IEEE 802.11e标准:Overview of 802.11e Formed in Sep. 1999. TheQoSbaseline document was approved in November 2000. The first draft was available in late 2001. Aim to support bothIntServandDiffServ The new standard is still in debate and unstable Wireless Multimedia Enhancement (WME) –Subset of 802.11e to be implemented by the industry NewQoSmechanisms –EDCF (Enhanced DCF) –HCF (Hybrid Coordination Function) Backwardly compatible with the DCF and PCF