3g and gprs
Category: Science > Technology
Asked by: alfaromeo_gel-ga
List Price: $2.00
03 Nov 2002 02:46 PST
Expires: 03 Dec 2002 02:46 PST
Question ID: 97182
What is the difference between gprs and 3g networking?
Re: 3g and gprs
Answered By: aditya2k-ga on 03 Nov 2002 03:30 PST
Hi alfaromeo_gel, Good day and thanks for your question. 3G is an ITU specification for the third generation (analog cellular was the first generation, digital PCS the second) of mobile communications technology. 3G promises increased bandwidth, up to 384 Kbps when a device is stationary or moving at pedestrian speed, 128 Kbps in a car, and 2 Mbps in fixed applications. 3G will work over wireless air interfaces such as GSM, TDMA, and CDMA. The new EDGE air interface has been developed specifically to meet the bandwidth needs of 3G. Source :: http://www.webopedia.com/TERM/3/3G.html GPRS, short for General Packet Radio Service, a standard for wireless communications which runs at speeds up to 115 kilobits per second, compared with current GSM (Global System for Mobile Communications) systems' 9.6 kilobits. GPRS, which supports a wide range of bandwidths, is an efficient use of limited bandwidth and is particularly suited for sending and receiving small bursts of data, such as e-mail and Web browsing, as well as large volumes of data. Source :: http://www.webopedia.com/TERM/G/GPRS.html An interesting article can be found here : GPRS vs 3G - Hold on to your data http://www.vnunet.com/Features/1131343 There is also an interesting discussion on 3G Vs. GPRS in the Usenet http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&frame=right&th=aa53759f8c8a612&seekm=397362B9.1FDCCBF8%40videotron.ca#link1 I hope you got the answer to your question. In case you have a clarification, the please don't hesitate to ask. Thank you for using this service and have a good day Warm Regards, Aditya2K
Re: 3g and gprs
From: jim_lipsit-ga on 03 Nov 2002 07:29 PST
alfaromeo_gel, Analog = 1G (1984 - Present) Digital = 2G (1992 - Present) GPRS = 2.5G (~2001 - Present) UMTS = 3G (~ 2003/4) GPRS "in practice" allows your phone to transmit at about 10K uplink and 40K downlink. It uses "packet data" so you are always connected, but not paying for the entire time you are always connected. Typically you pay for what you transmit and receive. This is much better than "circuit switched" data because you pay for the entire time you are connected. (For example if you were to get a stock quote on a phone; after the data was put on the screen, you would be paying for the time you were reading the screen (or a news story is a better example). With GPRS you only pay for the data that is transmitted and received. 3G is the next data standard that will boost speeds even higher. In practice it will likely be about "100K" downloads. but if the econonomy doesn't turn around soon, it may not be out for a number of years... since the wireless companys need to shell out big bucks to deploy it. I use GPRS on a Motorola 720 wireless phone on AT&T and it works really well. You can get an Ericsson T68i and connect it to a laptop via bluetooth or infra red and surf the net at about 30K download. Which is VERY GOOD for wireless communication. Jim
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