Intro to GSM Wireless Communications



Intro to GSM Wireless Communications
GSM 

Before talking about the GSM system and the features and the bands in details of this system i will talk quickly about  the 1G and the 2G(GSM) standard using some pictures and little words.

Single Cell Systems :

The single cell system suffers from handover (the call is disconnected when moving from one cell to the other ) as shown in the figure 
 
and the solution of this problem is  to use the cellular systems

Cellular Systems:

 


1st & 2nd Generations:

   

2nd Generation Standards:


  


GSM Phases:

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