3G Standard Speed Specification

Posted By Adeel On October 27th 2010. Under Tips And Tricks  Tags: , , , , , , , ,   

Many are confused ,some misinformed and mostly know little about various terms and technical specifications regarding 3G. I hope this topic will enlighten ,improve and understand 3G technology in a better way.

International Mobile Telecommunications IMT-2000 which is popularly known as 3G or 3rd Generation standard for mobile phones and telecommunications services to make 3G globally applicable.
It consists of two rival groups GSM and CDMA which have set 3G standard and guidelines. Both group have competition with each other and also no compatiblity with each others network.
3GPP 3rd Generation Partnership Project is a group of GSM telecommunication companies and associations from Europe ,Japan ,China ,North America ,South Korea. It was formed in 1998 and has set UMTS standard (also known as W-CDMA) for 3G upgrade for GSM technology. It has 250 3G W-CDMA networks in 100 countries and 275 HSDPA networks in 125 contries of Asia ,Europe ,USA ,Canada.
3GPP2 3rd Generation Partner Project 2 group was formed in 2008 and consists of CDMA telecommunication companies and participating associations from Japan ,China ,South Korea ,North America which have set CDMA2000 (also known as EVDO) for 3G upgrade in CDMA technology. Supported by 325 operators in 130 countries which are mainly from South Korea ,Japan and partially in North America ,China ,India.

Some telecom operators provide both 3G GSM and CDMA2000 both standards.

Here i will tell in detail about various 3G GSM standard and its technical specifications:

3G UMTS Universal Mobile Telecommunications System uses W-CDMA WideBand-Code Division Multiple Access as main interface. Also known with other names. In Japan called FOMA Freedom Of Mobile Multimedia Access. In China known as TD-SCDMA Time Division-Synchronous Code Division Multiple Access. Basically all these are variants which uses different radio interface.
W-CDMA networks can give speed upto 384kbps maximum.

UMTS networks can be further enhanced via software upgrade as follows:
3.5G HSUPA upgrades the uplink for higher data transfer speed and capacity of 1.4 ,1.9 ,5.8 Mbps. HSUPA name is given by Nokia and used in its phones only but 3GPP does not support this name.
HSDPA High-Speed Downlink Packet Access having faster speed from 1.8 ,3.6 ,7.2 to 14 Mbps.
3.75G HSPA High Speed Packet Access is a combination of HSUPA and HSDPA that improves the performance of W-CDMA and can attain speed 21Mbps to 28Mbps.
HSPA+ further speed increase available with HSPA Evolve or HSPA+ from 42Mbps to peak 84Mbps.
3.9G HSOPA Some networks dubbed it as 4G. This project is known as Long Term Evolution and uses OF-DMA Orthogonal Frequency-Division Multiplexing which will offer data rate at 170Mbps for up-link and 320Mbps for down-link.

UMTS operates on frequencies of 850/900/1700/1900/2100 MHz. Most 3G phones support at least 2 frequencies. No 3G phone available which supports all 3G frequencies.
It depends on service provider what speed and frequency it adopts for its 3G network and what type of 3G compatible phone you have to fully exploit ,utilize and enjoy the services.
Compiled by Wasif Abbas

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