Available bandwidth for HSDPA and HSUPA services

The article proposes an analytical method of determining average bandwidth offered to a user in UMTS applying HSDPA (High Speed Downlink Packet Access) and HSUPA (High Speed Uplink Packet Access) technologies. The application of HSDPA/HSUPA increases the transmission speed between the base station and the end-user´s terminal in UMTS networks. This has, in turn, made it possible for cellular systems operators to offer new services that require greater data flow both in the uplink direction and downlink direction such as, e.g., broadband Internet access. In the paper there is considered multi-rate traffic generated by both infinite and finite population of traffic sources. The proposed analytical method is based on recurrent Kaufman- Roberts recursion.