Thursday, 3 July 2014

GSM INTERFACE

GSM  INTERFACE


Interface means in which medium the information flow from one node to other node : like how the information flow from  mobile to BTS and which type of interface is used?


From
To
Interface
Technology used
MS
BTS
Air / Um / Radio interface
FDMA + TDMA Hybrid
BTS
BSC
Abis   Interface
LAPD Technology
BSC
MSC
A   Interface
SS7 Technology
MSC
VLR
B   Interface
MAP/ TCAP ( SS7 Layers) 
MSC
HLR
C   Interface
MAP/ TCAP ( SS7 Layers) 
VLR
HLR
D   Interface
MAP/ TCAP ( SS7 Layers) 
MSC 1
MSC 2
E   Interface
MAP/ TCAP + TUP + ISUP 
MSC
EIR
F   Interface
MAP/ TCAP ( SS7 Layers)
VLR 1
VLR 2
G   Interface
MAP/ TCAP ( SS7 Layers) 
HLR
AuC
H   Interface
INTERNAL TECHNOLOGY