Not really the right news group....

See
http://en.wikipedia.org/wiki/GSM_frequency_ranges
http://en.wikipedia.org/wiki/Global_...Communications

Guy

<ahmerghafoor@gmail.com> wrote in message
news:1156741653.936848.61790@m73g2000cwd.googlegro ups.com...
> Hi there,
>
> This is ahmer, i am student of MS Telecommunication and i want to know
> some information about frequency distribution. My question is "we know
> very well mobile communication use two frequency one for uploading and
> second is downloading between mobile station and BTS so why it is use
> downloading frequency is more than the uploading frequency, however 25
> MHz is use for uploading and downloading. Kindly give me the reason.
>
> High Regards,
>
> Ahmer Ghafoor
>