The GPRS "caveat" is "fixed" with HSCSD, for those
in need of a guaranteed channel during busy hours.
Additionally two bands, 900+1800MHz is built out in
the regular GSM world, with 1800MHz representing
smaller cell sizes and lower power.
WCDMA fills out the hierarchical system, for those
ready to pay more for handsets and batteries.
As does those going for fixed wireless, WLAN and all
that local jazz in more crowded places.
And also digital terrestrial TV,OFDMA, for those CSPAN
services.
While bluetooth glues all of that together, Tarzan
will miss his cable jungle.
Ilmarinen
GPRS is great at using that 50% capacity wasted when
one normally just listens, can and will be done
incrementally, just as EDGE, dynamic channel and
capacity alocation,etc.
And at some point there will be the same problem as the
CSPAN "digital must carry", how to add OFDMA and get
rid of old standards. (CSPAN has been pushed off
many cables as part of spectra must be reserved for digital
transmission, but transmitting the same channels as still
must be transmitted on the analog spectra) |
