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Reply To: GSM traffic channels

#32537
Brett
Guest

Yes we normally treat a GSM tslots (TCH) the same as a fixed wire 64KBs ccts, etc etc.

There is some question as to whether Erlang B or C should be used, but generally in the Industry, Erlang B is used.

I have worked in GSM for 4 years with a number of companies and all have dimensioned TCH this way.

That said, there are some special situations, where Erlang B is used, but in a different way, specifically fractionally loaded networks. Here TCH’s on the BCCH carrier may be considered separately to hopping TCH’s in another group of channels.

Hope this helps