HSPA

ABSTRACT

The volume of IP (internet protocol) traffic has already exceeded that for circuit- switched traffic in most fixed networks. The same change will happen in mobile networks as new IP-based mobile services, such as video news bulletins, downloading music or checking bus arrivals, become available and are used by more people in their daily communications. Delivery of digital content over mobile networks, as well as IP based person-to-person communication that combine different media and services into a single session will generate additional traffic and revenue. The volume of data bits used in communication will grow faster than revenue, driving operators to optimize their networks to support the dominant traffic type. While downlink optimization is enough for content-to-person IP-based services require uplink optimization as well. Two key technologies, HSDPA (high speed downlink packet access) and HSUPA (high speed uplink packet access), offer breakthrough in high data speeds.