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Nokia Open Studio Fall 2006

N75 N95 5300 Comments  

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Confused about WCMDA / HSDPA capabilities in N75

Sam K

Sep 28, 2006, 12:21 PM
The article states that the N75 supports WCDMA but "lacks HSDPA". I thought they were the same but after looking at the PhoneScoop glossary, it appears that HSDPA is an upgraded version WCDMA. I thought that Cingular only supports HSDPA. Does that mean that they also support WCDMA kind of like how EDGE phones also support GPRS? Can a WCDMA capable phone like the N75 take advantage of the HSDPA capabilities on the Cingular network but just at a slower speed?
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Lostentropy

Sep 28, 2006, 1:00 PM
WCDMA is a top speed of 700kb per second. while hsdpa is 1.8mb per second. they are based of the same principals but hsdpa is significantly faster. think of the way that edge and gprs phones are. gprs may be available but it does not mean they are edge capable although they use similar technology.
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Rich Brome

Sep 29, 2006, 10:58 AM
Sam K said:
The article states that the N75 supports WCDMA but "lacks HSDPA". I thought they were the same but after looking at the PhoneScoop glossary, it appears that HSDPA is an upgraded version WCDMA. I thought that Cingular only supports HSDPA. Does that mean that they also support WCDMA kind of like how EDGE phones also support GPRS?

Yes. HSDPA is simply a speed enhancement to WCDMA.

In the same way, EDGE is simply a faster mode of GPRS.

Can a WCDMA capable phone like the N75 take advantage of the HSDPA capabilities on the Cingular network but just at a slower speed?

It's not accurate to say that it would "take advantage of the HSDPA capabilities". HSDPA is simply a f...
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