Hi Harald,
thank you for your answer.
Ellen,
There are no BTS in UMTS. There is no BSC in UMTS. There's only NodeB,
On Fri, Jun 22, 2012 at 01:30:45PM +0200, Ellen Apolinar wrote:
> 1st idea: Implement OpenBSC for several BTS, also for UMTS.
RNC. As the Iub interface is completely unlike Abis, and UMTS (except
call control and sms) is completely unlike GSM, I really don't
understand what a BTS and a BSC would have to do with UMTS.
> how to build libs to implement the BTS to the OpenBSC-project. I don't knowIf you are talking about a classic GSM BTS that speaks a dialect of
> if it is possible and how long it takes. We will see it.
A-bis RSL (08.58), adding support for them to OpenBSC shouldn be hard.
Can you give us a list of BTS models that you're looking to support?
Also, just to make sure, I suppose you are planning to actively submit
or at least release the source code modifications to OpenBSC. We are
more than happy to add more A-bis dialects.
As soon as you operate a network with it, or you distribute the code to
any other entity, the AGPLv3 license requires you to release the source
code to all your additions/modifications anyway.
Based on past experience, I would say adding support for a new Abis
variant is an effort somewhere between one and three man-weeks for a
developer already familiar with OpenBSC internals and APIs.
> 2nd idea: Have a BTS - RNC - MSC - HLR - connection with parts of OpenBSC.Have you actually studied the specifications? Do you realize that the
RNC-MSC interface is RANAP based. Do you realize that those interfaces
and protocols are nothing like anything that exists in GSM or OpenBSC?
Regards,
Harald
--
- Harald Welte <laforge@gnumonks.org> http://laforge.gnumonks.org/
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