This standard specifies the WirelessMAN-Advanced Air Interface@ including the medium access control layer (MAC) and physical layer (PHY)@ of a broadband wireless access (BWA) system supporting multiple services. The WirelessMAN-Advanced Air Interface supports the International Telecommunication Union (ITU)'s IMT-Advanced requirements. Purpose This standard enables rapid worldwide deployment of innovative@ cost-effective@ and interoperable multivendor broadband wireless access products@ facilitates competition in broadband access by providing alternatives to wireline broadband access@ encourages consistent worldwide spectrum allocation@ and accelerates the commercialization of broadband wireless access systems. The standard serves as a basis for IMT-Advanced recommendations within the ITU.