This ARIB STANDARD specifies the physical (PHY) layer, the media access control (MAC) layer and the radio network control (RNC) layer of the radio equipment of portable base stations and mobile stations for the broadband wireless communication systems using 200 MHz band stipulated in the Ministry of Internal Affair and Communications (MIC) Ordinance Regulating Radio Equipment (ORE), Article 49.30. Especially, this specifies the multi-stage relay function, which is one of the possible operation forms. Organization of this standard is as follows. Chapter 2 describes the system overview. Chapter 3 describes the general technical requirements of the radio facilities. Chapter4 specifies technical requirements of physical (PHY) layer of the system. Chapter 5 specifies technical requirements of media access control (MAC) layer of the system. Chapter 6 specifies technical requirements of radio network control (RNC) layer of the system. Chapter 7 describes measurement method of the equipment. Chapter 8 summarizes terms and abbreviations used in this standard.