[Serusers] Open source GSM/CDMA network

Aimable Habiyakare aimabh at mtn.co.rw
Mon Jul 10 15:30:27 CEST 2006

When you put into consideration Software Defined Radio, whereby software
and (general hardware) is used to generate radio signals which were
being generated by analog integrated circuits, maybe there is a

Look at what GNU Radio is trying to do.

Together with SER/Asterisk, maybe something can be built.

BTW there is an open source WCDMA software base station already around.



From: serusers-bounces at lists.iptel.org
[mailto:serusers-bounces at lists.iptel.org] On Behalf Of CM0002 at aol.com
Sent: Monday, July 10, 2006 2:46 PM
To: serusers at iptel.org
Subject: [Serusers] Open source GSM/CDMA network


GSM suppliers working on that already and implementing softswitches in
order to increase capacity and lower cost. However GSM is circuit
switched - not packet switched (except GPRS) and here is the point cost
can't really dropped.


The way it will be more probably is that GSM CDMA might be used in the
furture in the suburbans and in metropolitan areas we will see a
WIMAX/VOIP scenario. This will result in a hybrid network for at least a
transitional period. We already experienced it with AMPS/TDMA to GSM

CDMA (spread spectrum) is almost dead because high cost and leck of
roaming capacity. WCDMA/UMTS (spread spectrum 3G) is very expencive and
hard to manage (in Europe the launch was delayed by 2 years because hard
and software problems). 


I recently started with a project (small scale) to setup such WIMAX
based networks. The aim is to develop a low cost internet/phone network
for rural communities in third world countries. Anybody with routing
experience who wants to join me on a professional base is welcome.


Regards Christian

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