Thanks Gerhard,
I guess what I'm really after is how much transmission speeds typically
vary from nominal, and especially what is typical throughput in the
network (through all servers, with congestion, etc). I realize there
lots of variables, but I'd love to see some approximations if they exist.
Gerhard Fasol wrote:
> Tom,
>
> this is easy to answer: you just take the image size (in kbytes)
> and devide by the data rate.
>
> Data rates in Japan as well as image sizes vary a lot: between
> about 9.6kb/s and 28.8kb/s for PDC, 64-128kb/s for PHS
> and around 200kb/s for 3G. These are all nominal
> top speeds, and actual speed is lower.
>
> Image sizes also vary a lot in the range 4kb - 50kb,
> AU's 3G network allows the sending of VGA images
> (around 50kb), you can see some examples here:
> http://www.eurotechnology.com/camera-phone/images.html
>
> Transmission times are typically a few seconds depending
> on the network congestion and other factors. You can
> calculate nominal transmission times for the different
> networks just be deviding image size by data rate.
>
> Gerhard
>
>
>
> Tom Ahlkvist Scharfeld wrote:
>
>>Hi all,
>>I hope this is not too off topic. I'm trying to understand the
>>throughput for mailing/transfering images from keitai cameras (i.e. time
>>spend on phone, through air, in network, and back). Has anyone seen
>>such an analysis?
>>Thanks
>>-Tom
>
>
> ---------------------------------------------------------------------
> Gerhard Fasol, PhD Eurotechnology Japan K. K.
> fasol_at_eurotechnology.com http://www.eurotechnology.com/
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Received on Sat Jul 12 23:08:35 2003