GSM Protocol Stack

GSM air Interface Protocol Stack:






MS End Protocol Stack:

Physical Layer
Data Link Layer
Layer 3
     -Radio Recourse Management
     -Mobility Management
     -Connection Management

BTS End Protocol Stack:

Physical Layer
Data Link Layer
Layer 3
   -Radio Recourse
   -Base Transreceiving Station  Management

BSC End Protocol Stack:

Physical Layer
Data Link Layer
Layer 3
   -Radio Recourse
   -Base Tranreceiving Station  Management
   -Signaling Connection Control Part
   -Direct Transfer Application Part
   -Base Station Subsystem Management Application Part


MSC End Protocol Stack:

Message Transfer Part
Signaling Connection Control Part
Direct Transfer Application Part
Base Station Subsystem Management Application Part
Connection Management
Mobility Management
Mobile Application Part
Transaction Capabilities Application Part