High-Speed Downlink Packet Access (HSDPA)

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Revision as of 07:04, 12 April 2009 (view source) Hanj2 (Talk) m (→Multiple-Input Multiple-Output) ← Older edit		Revision as of 07:04, 12 April 2009 (view source) Hanj2 (Talk) m (→Adaptive Modulation and Coding) Newer edit →
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	== Hybrid Automatic Request ==		== Hybrid Automatic Request ==

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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.

Contents 1 Technology 1.1 Multiple-Input Multiple-Output 1.2 Adaptive Modulation and Coding 2 Hybrid Automatic Request 3 Usage 4 Comparison

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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