N I DUNG









 !"

# $%&'(%) 

*&+,
2
Gi i thiêu h th ng GSM  

-./01)
.0

234/567.89::3;<%;=%
;>?*#
3

@A6

 !"#$%&'(

@34

JI$9#%#K

I$ $.

J!-.)9)) 18M $.% NKM E$$I$$O$
P% N

QJ1 R.!-)R $)9)) 18M $.$<8F$
%B8FKM$<$$;$< $<8F$

SJ.C1!- .)9)) 18M $.%TBKMUV(W .B9
8F
5
GSM: t ng quanX
Các mạng cố định
BSC
BSC
MSC MSC
GMSC
OMC, EIR,
AUC
VLR
HLR
NSS
with OSS
RSS
VLR
6
GSM: Các thành ph n và giao di n, 
NSS

Hệ thống
con chuyển
mạch và
mạng
U
m
A
bis
A
BSS
MS MS
BTS
BSC
BTS
BTS
BSC
BTS
MSC
MSC
Các mạng cố định
IWF
ISDN
PSTN
PSPDN
CSPDN
SS7
EIR
HLR
VLR
ISDN

A
BSS
MS MS
BTS
BSC
MSC
BTS
BTS
BSC
BTS
MSC
9
H th ng con vô tuy n  N

MNO+#



 $. !F8$JLKM

?!F8 CI $JL?KMLCI 9 - 1

L3< !F8$JLKM$<8F$'-$I$L?)
3<L?)@V(W B68F$<X$I$6
% NJ\
8
K B$I$6 04

L]LZ)8JL?KZ(6N


MSC
Mạng cố
định
IWF
ISDN
PSTN
PSPDN
CSPDN
SS7
EIR
HLR
VLR
ISDN
PSTN
11
Thực hiện các chức năng chuyển mạch và liên kết mạng
GSM

#M
+34'?P
.8Q

!/R
+34+,
KS.8


TUV
.!NC
+!MW

UV(W$I$045

[PW%BT E$

UV(W E$%B3<
QSd

?E$$O$P e8N8J?e8
!.LK
GSM components – visitor location register (VLR)

*HMIR!+AAE)U

\,3[XE*HM

(B$f)='(%30450"$
$TCT (6 &$045 .g$
!4%5C&$%&$>-

? 048)h$A8 
0fOA%5C&$%& 04
0"$;(B_
GSM – visitor location register (VLR)

? $>-8 d ! !.M

Q$>-$I$045- E$
)Ec8 !.%5C&$%&_

d !0"$ F.!-%B.%5


WI); $

H^!Q

_4]HM

VSN4X]HM

NKI``

A)T+?.?.N 
3[XY

_.N _

+S&',/56

_.? T_


 +SN)KE[)')\ 
$
19
GSM - EIR
l
R! E.AGa`ML

f)='( TC !<DI$T$I$)d



H $.$I$#$%&C&0n-D-)(JI$
 N L( !$I$  NC NCI$K
GSM components – mobile stations (MS)

VdC/&X8?
e::]f

opqropqs- t  04qs)+
&$.$I$ N 9# !6D1%Bpqs
5$.$I$ N 9#$,8 -

V7qppu$A-8O$$)* M7%Bpors

]a3[+34EE
+!8?e::gh::+Z[
VS+C+34A6
G3iL
GSM – mobile stations (SIM)

C 
E(.I`G./).0)`00L

`C/I

J 1!- .-(.9(19)$!91!1  KM)
TF 69 @$ Nt7rv 9 Y8
.9(1. !.1.9(1Q1 R.!.1.9(1
9)$!91!1 w$- .Q891!


G/))LVVI
>%./MW
aa>MQ
+L