HSOPA uses Orthogonal Frequency Division Multiplexing (OFDM) and multiple-input multiple-output (MIMO) antenna technology to support up to 10 times as many users as W-CDMA based systems, with lower processing power required on each handset.[1]. Still in development, experimental performance is 37 Mbit/s in the downlink over a 5 MHz channel, close to the theoretical maximum of 40 Mbit/s.
'''Difference: HOSPA - WiMAX'''
While both WiMAX and the HSOPA use OFDM/OFDMA, HSOPA enhanced UMTS will most likely be optimized for wide area mobile voice communications. HSOPA will use OFDMA for the down-link and Single Carrier FDMA (SC-FDMA) for the up-link. WiMAX/802.16e-2005 uses OFDMA for both the up and down links. ===Standards===SC-OFDM can maintain connections at longer distance but has lower bandwidth than OFDMA. However, WiMAX advocates perceive evolution of WBB as also shifting the 'architectural evolution' of wireless networks to more granular, symmetrical, higher bandwidth micro-cell and mobile multi-hop relay network topologies.===companies===Multi-mode WiMAX plus CDMA and other technologies can work together to fulfill both long range, low bandwidth and shorter range, high bandwidth requirements on the basis of providing the user with 'always best connected' experience.===Products======IP information===
==3GPP2 Ultra Mobile Broadband==