Update on GSM network at 26C3
246tnt at gmail.com
Thu Dec 17 23:03:35 CET 2009
If you are interested, you could work on the SMS implementation. Somehow
> we have a number of known bugs:
> * inconsistent/incompatible/incorrect handling of transaction ID's
> * interleaved 04.11 CP-DATA transfers if a phone sends a multi-part
> message or multiple SMS at the same time. If you do this right now,
> we will use one full cycle of channel request -> immediate assignment
> -> establish indication -> cm service request -> cm service ack and
> then the full CP and RP transfers for each part of the message. However,
> the phones use the MMS (more messages to send) and overlapped /
> CP-DATA transfers in order to do all of this in one go, in one RR
> We need to support this.
Ok, after sending a couple of big messages I see what you mean.
I don't get multiple RR connections but I get multiple CM service requests
one after another in a single RR connection.
Looking into it ...
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