| Author |
What is 3G, edge, umts. |
RedStar
Joined: Jan 23, 2005
Posts: 105
PM |
Would somebody be ever so kind to orient us lowly mortals what 3G, EDGE and UMTS are? 
|
|
|
HyperiaBlue
Joined: Jan 09, 2005
Posts: 424
From: Outerspace!
PM |
1G:
The first generation of analogue mobile phone technologies including AMPS, TACS and NMT
2G:
The second generation of digital mobile phone technologies including GSM, CDMA IS-95 and D-AMPS IS-136
2.5G:
The enhancement of GSM which includes technologies such as GPRS
Ellaboration on the above:
You get ordinary GSM (1g) - basic voice and text messaging.
This was followed by 2G with some data capabilities - CSD/HSCSD 9.6kbps - approx 14kbps
2.5G (the GPRS era) is a little faster than 2G. about 28 - 56kbps.
3G: Stands for 3rd generation mobile network, which is able to handle higher data rates/speeds and other advanced media features.
GPRS: General Packet Radio Service (GPRS) enabled networks offer 'always-on', higher capacity, Internet-based content and packet-based (theoretical max. of 172kbps) data services. This enables services such as colour Internet browsing, e-mail on the move, powerful visual communications, multimedia messages and location-based services.
EDGE: Enhanced Data rate for GSM Evolution - EDGE (or Enhanced Data Rates for Global Evolution) is a 3G technology that delivers broadband-like data speeds to mobile devices (essentially an Air interface). It allows consumers to connect to the Internet and send and receive data, including digital images, web pages and photographs, three times faster than possible with an ordinary GSM/GPRS network. EDGE enables GSM operators to offer higher-speed mobile-data access, serve more mobile-data customers, and free up GSM network capacity to accommodate additional voice traffic.
UMTS: Universal Mobile Telephone System - the word universal should give you a good idea what this means.
 Sony Ericsson - the marriage of the consumer electronics Beauty to the telecomms Beast If you have any se-nse, then you will visit http://www.se-nse.com  |
wrecked_porsche
Joined: Jul 01, 2002
Posts: > 500
From: I'm not telling u !
PM, WWW
|
This should be helpful....
http://www.esato.com/board/viewtopic.php?topic=79424&r=a
Funny, I was just reading it then a few minutes later I saw your post |
Ing. FijoK
Joined: Sep 11, 2004
Posts: > 500
From: Prague, Czech Republic
PM, WWW
|
I heard something about 3,5G in Britain 
I saw the man who can change my destiny... He stood in the mirror. |
whizkidd
Joined: May 14, 2004
Posts: > 500
From: India
PM, WWW
|
Thanks for that dude! But is EDGE a 3G technology? Isn't it 2.5g?
This message was posted from a T230 |
Dragonfly_TP
Joined: Aug 11, 2004
Posts: > 500
From: Belgium
PM |
UMTS is a 3G network
Everything was ugly, but your beautiful face. |
wrecked_porsche
Joined: Jul 01, 2002
Posts: > 500
From: I'm not telling u !
PM, WWW
|
EDGE is 2.5G as far as I know....
Never argue with an idiot. They will drag you down to their level and beat you with experience.  I Nokia N95 8GB and N82 |
Ing. FijoK
Joined: Sep 11, 2004
Posts: > 500
From: Prague, Czech Republic
PM, WWW
|
Quote:
|
On 2005-02-16 12:50:20, whizkidd wrote:
Thanks for that dude! But is EDGE a 3G technology? Isn't it 2.5g?
This message was posted from a T230
|
|
EDGE has usually operators which has not license to UMTS site. I think it is 2,5G too...
I saw the man who can change my destiny... He stood in the mirror. |
Aivar
Joined: Jan 14, 2003
Posts: > 500
From: Estonia
PM |
A bit out of topic: HSDPA (high-speed downlink packet access) is called like a 3,5G. |
Ing. FijoK
Joined: Sep 11, 2004
Posts: > 500
From: Prague, Czech Republic
PM, WWW
|
Quote:
|
On 2005-02-16 13:00:49, Aivar wrote:
A bit out of topic: HSDPA (high-speed downlink packet access) is called like a 3,5G.
|
|
thanx....
I saw the man who can change my destiny... He stood in the mirror. |
HyperiaBlue
Joined: Jan 09, 2005
Posts: 424
From: Outerspace!
PM |
If u read my post carefully u will notice that i stated that EDGE is an Air interface...its is only one of the two interfaces being used in a 3G/UMTS network. The other Air interface is W-CDMA.
A little about what CDMA is...:
CDMA:
Code Division Multiple Access; also known as spread spectrum, CDMA cellular systems utilise a single frequency band for all traffic, differentiating the individual transmissions by assigning them unique codes before transmission. There are a number of variants of CDMA (eg. W-CDMA, B-CDMA, TD-SCDMA etc.)
3GSM represents third generation services delivered on an evolved core GSM network. 3GSM services are delivered at a technical level on third generation standards developed by 3GPP, which utilise Wideband-CDMA and, in some markets, EDGE air interfaces
The 3GSM standard is significantly more powerful than any other wireless technology and that competitive advantage needs to be promoted collectively. No other standard offers the flexible combination of voice and data performance and capacity delivered by 3GSM/UMTS underpinned by Wideband-CDMA. No other standard is as open as 3GSM.
Hope this hasn't confused you further!
Sony Ericsson - the marriage of the consumer electronics Beauty to the telecomms Beast If you have any se-nse, then you will visit http://www.se-nse.com |
wrecked_porsche
Joined: Jul 01, 2002
Posts: > 500
From: I'm not telling u !
PM, WWW
|
So, in other words, WCDMA is the most widely used for 3G correct?
Never argue with an idiot. They will drag you down to their level and beat you with experience. I Nokia N95 8GB and N82 |
Dragonfly_TP
Joined: Aug 11, 2004
Posts: > 500
From: Belgium
PM |
EDGE is an advanced GSM service using circuit switched data, so it is 2G, GPRS is a data network only using the GMS network or UMTS network for access.
Everything was ugly, but your beautiful face. |
HyperiaBlue
Joined: Jan 09, 2005
Posts: 424
From: Outerspace!
PM |
Correct!
EDGE is used mainly in the US. I am aware that it is also going to be used in South Africa, which ultimately would lead to it being used in many of the other African countries too.
Sony Ericsson - the marriage of the consumer electronics Beauty to the telecomms Beast If you have any se-nse, then you will visit http://www.se-nse.com |
Dragonfly_TP
Joined: Aug 11, 2004
Posts: > 500
From: Belgium
PM |
some networks in Europe that could not get the UMTS licenses are now going to upgrade there 2G-GMS network with EDGE to keep up with UMTS of competetors.
Everything was ugly, but your beautiful face. |
|
|
Posted: 2005-02-16 12:01
Sony Ericsson - the marriage of the consumer electronics Beauty to the telecomms Beast
