High-Speed Downlink Packet Access (HSDPA)
From Computing and Software Wiki
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Revision as of 07:04, 12 April 2009
High Speed Downlonk Packet Access is a 3.5G [G stands for generation] technology. HSDPA, short for High Speed Downlink Package Access is a new new mobile telephony protocol, which allows to have high data speed transmission and large amounts of capacity. It will provide download speed on a mobile phone same as an Asymmetric Digital Subscriber Line [ADSL]. HSDPA can archieve data transmission Speed of 8-10 Mbit/s. For future improvement, HSDPA provides up to 42Mbit/s data transmission speed.
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Technology
High Speed Downlink Packet Access technology is based on Universal Mobile Telecommunications System [UMTS] standard that enhances the capabilities of 3G by enabling higher data transfer rates. HSDPA implementations includes Multiple-Input Multiple-Output (MIMO), Hybrid Automatic Request (HARQ), fast cell search, Adaptive Modulation and Coding (AMC), and advanced receiver design
Multiple-Input Multiple-Output
Adaptive Modulation and Coding
Hybrid Automatic Request
Usage
Testing
Comparison
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