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whats the differnce between the edge and gprs with class? |
bahraini
Joined: Nov 27, 2001
Posts: 361
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some phones says it has edge
and other says gprs class 4 for example..
so what the differnce between these two??
also who brought this techonolgy first
nokia or SE??
cuz if im not mistaken , i think the 6600 has it
im right on this thing? |
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wapt
Joined: Jan 10, 2003
Posts: > 500
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Not 6600, Nokia has edge phones 6220, 6200(north america), 6820, 6230 and more. Sony Ericsson has an edge pc card GC-83(800/1900/1800) available.
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Atlis
Joined: Dec 09, 2003
Posts: > 500
From: European Union
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Class of GPRS means configuration in timeslots:
For example:
2+1 is class 4
3+2, 3+1 is class 6
4+1 is class 8
4+2 is class 10
4+4 is class 12
First number stands for download, second for upload
One time slot is 14.4 kilobits/s I guess...
This is the same for EDGE but dunno the speed...
no cellphone... |
Hell Fire
Joined: Feb 13, 2004
Posts: 30
From: Hell or Heaven ?
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N7200 also has EDGE. EDGE faster than GPRS,especially 4 video sending. Network/Fones with EDGE usually called 3G, GPRS called 2.5G
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Atlis
Joined: Dec 09, 2003
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From: European Union
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 Yes... EDGE is faster, but itīs because of signal modulation and coding scheme: MCS1 - MCS9
Theoretically 236.6 kbps download, 118,4 kbps upload
no cellphone... |
wapt
Joined: Jan 10, 2003
Posts: > 500
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@Atlis, That speed is for a multislot 4+2 EDGE terminal with MCS-9.
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Atlis
Joined: Dec 09, 2003
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From: European Union
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Exactly... SE Z500 for example
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martin4058
Joined: Jun 27, 2004
Posts: 3
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Modulation Coding Scheme 9 in EDGE is like Coding Scheme 4 in GPRS (no error correction) hence in reality we are unlikely to ever see it.
Class 10 is max 4 downlink and 2 uplink but can only total 5 timeslots in a frame so it's really 4+1 or 3+2.
[ This Message was edited by: martin4058 on 2004-06-27 19:55 ] |
Atlis
Joined: Dec 09, 2003
Posts: > 500
From: European Union
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Welcome, my dear, where did you find this non sense?
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martin4058
Joined: Jun 27, 2004
Posts: 3
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non sense ?
I know a little bit about GPRS because I work in telecoms 
[ This Message was edited by: martin4058 on 2004-06-27 21:21 ] |
bico
Joined: May 19, 2003
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From: Stockholm, Sweden.
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@Atlis: Why did you use such a depreciating tone in your last post above? What martin4058 states, at least about GPRS Class 10, is obviously correct. To learn about GPRS classes, take a look at GSM World - GPRS Class Type.
Unfortunately I haven't been able to verify the information about coding schemes, but, until proved otherwise, I hold that it's correct too.
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Atlis
Joined: Dec 09, 2003
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From: European Union
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Sorry guys, didn't want to offend both of you but what I found, and seen my post is correct... So...
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martin4058
Joined: Jun 27, 2004
Posts: 3
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I didn't mean to offend you either Atlis.
All I way saying is that 59.2kbit/s is the actual (user) data rate on an EDGE timeslot so it may be very difficult to get 4x59.2 using MCS9 when you have to consider the air interface. Error correction is such important part of data transfer on the GSM radio network.
Who knows, you might get away with MCS9 in video streaming or something where the errors are not deemed important but I would have thought that general web surfing or file transfer will require a much lower coding scheme.
Maybe I'm wrong but at least tell me why
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Draqula
Joined: Jun 22, 2002
Posts: 197
From: Estonia
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So is Z500 the only SE phone available supporting EDGE? In Estonia we had the first public testing of EDGE this week. |
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Posted: 2004-06-26 16:51
