"I no longer accept your issue with CDMA cell sites "breathing" when all future upgrades for GSM will sport the same feature."
The point is if there is a "tractor system" picking up those
left out on the dirt roads.
"My issue" is how QCDMA solves that??
Switching down an EDGE user to basic GSM is easy,
additionally to a lower carrier frequency,
the big thing is switching a WCDMA user to EDGE
and GSM.
Which assumes that the operator either runs on those
frequencies or standards, or has a mutual contract to
use the competitors channels.
The key word is to think "hierarchically" as that is
the way reality is in large cities where a lot of
capacity is needed.
---
yes, one problem CDMA has is that it takes a long time to
join the cocktail party in the cell, compared to getting a
carrier and timeslot for GSM.
(and GPRS has already implemented standardized improvements,
and more to come)
--
even QCDMA uses time slots, TDMA, on the down link
--
GSM uses all timeslots on a channel, but not for the
same (GPRS) handset, as it also needs to transmit (the beauty
of not speaking while listning, great for dynamics
and coverage, even at cocktail parties)
--
AMPS-DAMPS:
My impression is that the decision was an internal
US decision, one reason to keep GSM out of US until
US caught up.
Senator Holling and the Voicestream issue seem to imply
this has not yet happened.
Additionally one should know how important Motorola was
in building the GSM standard, all those patents and
so little left now 10-15 years later
---
HDTV-MUSE
Btw, lots of things happening with Digi-TV in Europe
and maybe especially in Finland.
(EU, Nokia,etc going for a modular system where
competition will be tough, others for a "free" box
which only works with one program source)
Ilmarinen |
