Tuesday, August 23, 2011

VOICE SWITCHING IN CELLULAR NETWORKS :GSM : A DIGITAL CIRCUIT SWITCHED NETWORK

 

VOICE SWITCHING IN CELLULAR NETWORKS :GSM : A DIGITAL CIRCUIT SWITCHED NETWORK

This is the structure of GSM network. It gives us a simplified overview of the GSM system.

Now , A GSM system consists of 3 subsystems-

1. RSS : Radio subsystem

2. NSS : Network & switching subsystem

3. OSS : Operation subsystem.

But , a GSM customer only notices a very small fraction of the whole network :

A. The mobile stations(MS)

B. Some antenna masts of the base transceiver stations(BTS)

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