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DJcreamz Posts: 463

Im using 02 pay monthly GPRS it loads fairly quickly and i can browse sites with a lot of images pretty quickly, but i am unsure what the actual speed is on a p800/900/910 i have a vodafone card for my laptop that uses gprs and it boasts 16kbps connection (not a 3g card) now i assume the phones dont hold this capabilities but what are they ?
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Posted: 2004-10-13 14:34:02
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masseur Posts: > 500

The P910i white paper says it supports 4+1 (thats 4 slots downstream and 1 slot upstream) and the speed achieved depends on the coding scheme supported by the network

there is a table as follows showing each coding scheme, the speed available on each channel and therefore the maximum transmit and receive data speeds

CS-1 9.06Kbps Rx 36.2Kbps Tx 9.05Kbps
CS-2 13.4Kbps Rx 53.6Kbps Tx 13.4Kbps
CS-3 15.6Kbps Rx 62.4Kbps Tx 15.6Kbps
CS-4 21.4Kbps Rx 85.6Kbps Tx 21.4Kbps

for HSCSD it supports 2 + 1
so if the network supports 9.6Kbps Rx is 19.2Kbps Tx is 9.6Kbps
if the network supports 14.4Kbps Rx is 28.8Kbps Tx is 14.4Kbps

I've read that vodafone use CS-2 but a quick google couldn't provide evidence of that

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Posted: 2004-10-13 14:51:52
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nickorooster Posts: > 500

When downloading using O2 PAYG gprs I'm getting around 5Kb/s (about the same as a 56k modem....)

Nick
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Posted: 2004-10-13 15:09:36
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_LAU_ Posts: > 500

5 Kb = 40 Kbps
40 Kbps / 4 downstreams = 10 Kbps
CS-2 is 13.4 Kbps. Seems it must be CS-2 to me.

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Posted: 2004-10-13 15:21:57
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Aled Posts: 320

I assume the speeds quoted are connection speeds not the actual amount of content recieved? It's hard to gauge the speed as the only gprs phones i've used (t68 and t610) are so horribly slow at interpreting wml anyway which slows everything to a crawl, but i would assume it would be the same as your gprs computer card as the technology is the same. This message was posted from a T610
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Posted: 2004-10-13 15:23:47
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masseur Posts: > 500

yes, its connection speeds but some of that is lost to overhead

indeed CS-1 has maximum error correction while CS-4 has none and CS-2 and CS-3 have somewhere between
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Posted: 2004-10-13 15:27:06
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