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UMTS (Universal Mobile Telecommunications System) to technologia komunikacji mobilnej trzeciej generacji (3G), która zapewnia szybki transfer danych i usługi multimedialne, natomiast HSDPA (High-Speed Downlink Packet Access) to udoskonalenie UMTS oferujące jeszcze szybszy transfer danych stawki.
18 cze 2024 · What is the major distinction between HSDPA and UMTS? The main difference lies in the speed of transmission; whereas UMTS supports up to 384 kbps for its mobile users, HDSPA can theoretically offer speeds as high as 14.4 Mbps as it enhances on this basic capability of UMTS.
27 sie 2023 · UMTS (Universal Mobile Telecommunications Service) is synonymous with 3G. This is the protocol that the earliest 3G phones supported, and it delivers data speeds of up to 2 Mbps for downloads. What is 3G HSDPA, and how fast is it?
UMTS (Universal Mobile Telecommunications System) is a third-generation (3G) mobile communication standard offering improved data and voice services. HSDPA (High-Speed Downlink Packet Access) enhances UMTS, providing faster data transfer rates and improved network capacity.
27 lip 2011 · UMTS has a theoretical maximum data transfer of 21 Mbits/s (in the HSDPA form). However, for those currently using UMTS handsets, an expected transfer rate of 384 kbit/s and 7.2 Mbit/s is a more accurate expectation for R99 handsets and HSDPA handsets, respectively.
There are another big difference between HSDPA and HSUPA. It is about scheduling issue. Regardless of whether it is HSDPA or HSUPA, the scheduler (the decision maker) is on Node B, not on a UE. For scheduling we need two very important information, the channel quality and buffer status information.
Abstract — This paper discusses an approach to assess Video Streaming (VS) performance over live UMTS networks. The suggested methodology can be used to evaluate the service performance of Release 99 (Rel’99) or HSDPA network implementations.
