IEEE 802.16-2004 standard is developed by a different standard IEEE 802.16 access: a, c, d which 802.16 802.16 deployment 2-66 GHz frequency in a radius of 30 miles away or about 50 km.
A standard developed by the IEEE 802.16-2004 standard, in combination with the IEEE 802.16a, 802.16c, 802.16d, which can be used in the 2-66 GHz frequency range is available in a range of 30 miles or 50 kilometers.