HSDPA technology is a new cellular technology based on 3G.
3G includes WCDMA, CDMA2000 and TD-SCDMA.
WCDMA is the most popular used in the world. WCDMA includes HSDPA and HSUPA at the beginning. Now there are new coming of HSPA and HSPA+.
HSDPA provides maximum 7.2mbps download, and HSUPA provides maximum 14.4Mbps.
HSDPA technology brings people high data transmission possibility. So it’s used in popular device, such as hsdpa router, hsdpa modem, cell phone with hsdpa, laptop with hsdpa, etc.
Written by zouyanbing from blog of Wireless & Cellular Modem/Router/AP Device