*3563URWRFROV *356 3URWRFROV
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
½*3563URWRFROV
VXEVFULEHUORFDWLRQFHOOVHOHFWLRQURDPLQJDQGPDQ\RWKHUIXQFWLRQVWKDW DQ\FHOOXODUQHWZRUNQHHGVIRULW VRSHUDWLRQ$SDUWIURPWKHVHSURWRFROV *356XVHVWKH*60606SURWRFRODQGWKH*6000SURWRFRO ZKLFKLW FDOOV*00 Gb
Um
Gn
(S G S N )
(B SS )
M O B ILE S TATIO N (M S)
Gi
(G G S N )
A pplication
IP / X .25
IP / X .25
R elay elay R
SNDCP SNDCP
UDP /
UDP /
TC P
TC P
B S SG P
IP
IP
N etw ork N etw ork S ervice S ervice
S CL2C P
L2
L1
L1
LLC
LLC
R elay elay R
R LC
GTP GTP
B S SG P R LC MAC MAC
GSM RF
GSM RF
N etw ork S ervice
L1b is
L1b is
*356WUDQVPLVVLRQSODQ
7KLVFKDSWHUGHVFULEHVWKHIROORZLQJ*356SURWRFROV • 16 1HWZRUN6HUYLFH • %66*3 %DVH6WDWLRQ6\VWHP*3563URWRFRO • *73 *3567XQQHOOLQJ3URWRFRO • //& /RJLFDO/LQN&RQWUROOD\HUSURWRFROIRU*356 • 61'&3 6XE1HWZRUN'HSHQGDQW&RQYHUJHQFH3URWRFRO
*3563URWRFROV¾
7KHIROORZLQJGLDJUDPLOOXVWUDWHVWKH*356SURWRFROVLQUHODWLRQWRRWKHU WHOHSKRQ\SURWRFROVDQGWKH26,PRGHO Application INAP
Presentation
ISUP
IS41/MAP TUP
VLR
AUC
EIR
HLR
TCAP
Session Transport GMS/CDMA B-ISUP
BSSMAP
DTAP
DUP
BSSAP
BTSM
SCCP
From LAPD
GPRS GTP Network
From UDP SNDCP
To IP
V5 Link Control V5 PSTN
GMM To X.25
SMS
MTP3
NM
Data Link
SS MM RR CM/CC SMS
LLC
V5 Control V5 Protection
LAPv5 MTP2
BSSGP
V5 NS-Network Physical
From Frame Relay
MTP1
*356LQUHODWLRQWRWKH26,PRGHO
½*3563URWRFROV
16 *60YHUVLRQKWWS ZZZHWVLIU
7KH1HWZRUN6HUYLFH 16 SHUIRUPVWKHWUDQVSRUWRI166'8VEHWZHHQWKH 6*61 VHUYLQJ*356VXSSRUWQRGH DQG%66 EDVHVWDWLRQV\VWHP 6HUYLFHV SURYLGHGWRWKH16XVHULQFOXGH • 1HWZRUN6HUYLFH6'8WUDQVIHU7KH1HWZRUN6HUYLFHSURYLGHVQHWZRUN VHUYLFHSULPLWLYHVDOORZLQJIRUWUDQVPLVVLRQDQGUHFHSWLRQRIXSSHUOD\HU SURWRFROGDWDXQLWVEHWZHHQWKH%66DQG6*617KH166'8VDUH WUDQVIHUUHGLQRUGHUE\WKH1HWZRUN6HUYLFHEXWXQGHUH[FHSWLRQDO FLUFXPVWDQFHVRUGHUPD\QRWEHPDLQWDLQHG • 1HWZRUNFRQJHVWLRQLQGLFDWLRQ&RQJHVWLRQUHFRYHU\FRQWURODFWLRQVPD\ EHSHUIRUPHGE\WKH6XE1HWZRUN6HUYLFH HJ)UDPH5HOD\ &RQJHVWLRQUHSRUWLQJPHFKDQLVPVDYDLODEOHLQWKH6XE1HWZRUN6HUYLFH LPSOHPHQWDWLRQDUHXVHGE\16WRUHSRUWFRQJHVWLRQ • 6WDWXVLQGLFDWLRQ6WDWXVLQGLFDWLRQLVXVHGWRLQIRUPWKH16XVHURIWKH 16DIIHFWLQJHYHQWVHJFKDQJHLQWKHDYDLODEOHWUDQVPLVVLRQFDSDELOLWLHV 7KHVWUXFWXUHRIWKH163'8LVVKRZQLQWKHIROORZLQJLOOXVWUDWLRQ 8
7
6
5 4 3 PDU type Information elements
10KHDGHUVWUXFWXUH 3'8W\SH
3'8W\SHPD\EH 16$/,9( 16$/,9($&. 16%/2&. 16%/2&.$&. 165(6(7 165(6(7$&. 1667$786 1681%/2&. 1681%/2&.$&. 1681,7'$7$
2
1
Octet 1 2-n
16¾ ,QIRUPDWLRQHOHPHQWV
7KHSDUWLFXODU,(VSUHVHQWLQD3'8GHSHQGRQWKH3'8W\SH7KH VWUXFWXUHRI,(VLVDVVKRZQLQWKHIROORZLQJLOOXVWUDWLRQ 8
7
6 5 4 3 Information element ID (IEI) Length indicator Information element value
2
1
Octet 1 2 3
,(VWUXFWXUH ,QIRUPDWLRQHOHPHQW,'
7KHILUVWRFWHWRIDQLQIRUPDWLRQHOHPHQWKDYLQJWKH7/9IRUPDWFRQWDLQV WKH,(,RIWKHLQIRUPDWLRQHOHPHQW,IWKLVRFWHWGRHVQRWFRUUHVSRQGWRDQ ,(,NQRZQLQWKH3'8WKHUHFHLYHUDVVXPHVWKDWWKHQH[WRFWHWLVWKHILUVW RFWHWRIWKHOHQJWKLQGLFDWRUILHOG7KLVUXOHDOORZVWKHUHFHLYHUWRVNLS XQNQRZQLQIRUPDWLRQHOHPHQWVDQGWRDQDO\]HDQ\VXEVHTXHQWLQIRUPDWLRQ HOHPHQWV 7KHIROORZLQJ,(VPD\EHSUHVHQWGHSHQGLQJRQWKH3'8W\SH &DXVH 169&, 163'8 %9&, 16(, /HQJWKLQGLFDWRU
,QIRUPDWLRQHOHPHQWVPD\EHYDULDEOHLQOHQJWK7KHOHQJWKLQGLFDWRULVRQH RUWZRRFWHWVORQJWKHVHFRQGRFWHWPD\EHDEVHQW7KLVILHOGFRQVLVWVRIWKH ILHOGH[WHQVLRQELWH[WDQGWKHOHQJWKRIWKHYDOXHILHOGZKLFKIROORZV H[SUHVVHGLQRFWHWV7KHILHOGH[WHQVLRQELWHQDEOHVH[WHQVLRQRIWKHOHQJWK LQGLFDWRUWRWZRRFWHWV%LWRIWKHILUVWRFWHWLVUHVHUYHGIRUWKHILHOG H[WHQVLRQELW,IWKHILHOGH[WHQVLRQELWLVVHWWR ]HUR WKHQWKHVHFRQG RFWHWRIWKHOHQJWKLQGLFDWRULVSUHVHQW,IWKHILHOGH[WHQVLRQELWLVVHWWR RQH WKHQWKHILUVWRFWHWLVWKHILQDORFWHWRIWKHOHQJWKLQGLFDWRU
½*3563URWRFROV
%66*3 *60YHUVLRQKWWS ZZZHWVLIU
7KH16WUDQVSRUWV%66 EDVHVWDWLRQV\VWHP *356SURWRFRO3'8VEHWZHHQ D%66DQGDQ6*61 VHUYLQJ*356VXSSRUWQRGH 7KHSULPDU\IXQFWLRQV RIWKH%66*3LQFOXGH • 3URYLVLRQE\DQ6*61WRD%66RIUDGLRUHODWHGLQIRUPDWLRQXVHGE\WKH 5/&0$&IXQFWLRQ LQWKHGRZQOLQN • 3URYLVLRQE\D%66WRDQ6*61RIUDGLRUHODWHGLQIRUPDWLRQGHULYHG IURPWKH5/&0$&IXQFWLRQ LQWKHXSOLQN • 3URYLVLRQRIIXQFWLRQDOLW\WRHQDEOHWZRSK\VLFDOO\GLVWLQFWQRGHVDQ 6*61DQGD%66WRRSHUDWHQRGHPDQDJHPHQWFRQWUROIXQFWLRQV 7KHVWUXFWXUHRI%66*33'8VLVVKRZQLQWKHIROORZLQJLOOXVWUDWLRQ 8
7
6
5 4 3 PDU type Information elements
%66*3KHDGHUVWUXFWXUH 3'8W\SH
3'8W\SHPD\EH 8/81,7'$7$ 5$&$3$%,/,7< 37081,7'$7$ 3$*,1*36 3$*,1*&6 5$&$3$%,/,7<83'$7( 5$&$3$%,/,7<83'$7($&. 5$',267$786 6863(1' 6863(1'$&. 6863(1'1$&. 5(680( 5(680($&. 5(680(1$&. )/86+//
2
1
Octet 1 2
%66*3¾
)/86+//$&. //&',6&$5'(' )/2:&21752/%9& )/2:&21752/%9&$&. )/2:&21752/06 )/2:&21752/06$&. %9&%/2&. %9&%/2&.$&. %9&81%/2&. %9&81%/2&.$&. %9&5(6(7 %9&5(6(7$&. 67$786 6*61,192.(75$&( ,QIRUPDWLRQHOHPHQWV
7KHIROORZLQJ,(W\SHVPD\EHSUHVHQW7KHKH[FRGLQJLVWKHYDOXHRIWKH ,(,ILHOG [ $OLJQPHQW2FWHWV [ %PD[GHIDXOW06 [ %66$UHD,QGLFDWLRQ [ %XFNHW/HDN5DWH [ %9&, [ %9&%XFNHW6L]H [ %9&0HDVXUHPHQW [ &DXVH [ &HOO,GHQWLILHU [ &KDQQHOQHHGHG [D '5;3DUDPHWHUV [E H0/333ULRULW\ [F )OXVK$FWLRQ [G ,06, [H //&6'8 [I //&)UDPHV'LVFDUGHG [ /RFDWLRQ$UHD [ 0RELOH,G [ 06%XFNHW6L]H [ 065DGLR$FFHVV&DSDELOLW\ [ 20&,G [ 3'8,Q(UURU [ 3'8/LIHWLPH
½*3563URWRFROV
[ 3ULRULW\ [ 4R63URILOH [ 5DGLR&DXVH [D 5$&DS83'&DXVH [E 5RXWLQJ$UHD [F 5BGHIDXOWB06 [G 6XVSHQG5HIHUHQFH1XPEHU [H 7DJ [I 7//, [ 706, [ 7UDFH5HIHUHQFH [ 7UDFH7\SH [ 7UDQVDFWLRQ,G [ 7ULJJHU,G [ 1XPEHURIRFWHWVHIIHFWHG $OOYDOXHVQRWH[SOLFLWO\VKRZQDUHUHVHUYHGIRUIXWXUHXVHDQGDUHWUHDWHGE\ WKHUHFLSLHQWDVDQXQNQRZQ,(,
*73¾
*73 *60 YHUVLRQKWWS ZZZHWVLIU
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
x
7 Version
x
6
5
4 3 Reserved Message type Length Sequence number Flow label LLC frame number x x x x Reserved TID
*73KHDGHUVWUXFWXUH
2
x
1 LFN
FN
Octet 1 2 3 4 5 6
½*3563URWRFROV 9HUVLRQ
6HWWRWRLQGLFDWHWKHILUVWYHUVLRQRI*73 5HVHUYHG
5HVHUYHGELWVIRUIXWXUHXVHVHWWR /)1
//&IUDPHQXPEHU)ODJLQGLFDWLQJZKHWKHUWKH//&IUDPHQXPEHULV LQFOXGHGRUQRWVHWWRLQVLJQDOOLQJPHVVDJHV 0HVVDJHW\SH
,QGLFDWHVWKHW\SHRI*73PHVVDJH,QVLJQDOOLQJPHVVDJHVLWLVVHWWRWKH XQLTXHYDOXHWKDWLVXVHGIRUHDFKW\SHRIVLJQDOOLQJPHVVDJH /HQJWK
,QGLFDWHVWKHOHQJWKLQRFWHWVRIWKH*73PHVVDJH *3'8 ,QVLJQDOOLQJ PHVVDJHVWKLVLVWKHOHQJWKLQRFWHWVRIWKHVLJQDOOLQJPHVVDJHLQFOXGLQJWKH *73KHDGHU 6HTXHQFHQXPEHU
$WUDQVDFWLRQLGHQWLW\IRUVLJQDOOLQJPHVVDJHVDQGDQLQFUHDVLQJVHTXHQFH QXPEHUIRUWXQQHOHG73'8V )ORZODEHO
,GHQWLILHVXQDPELJXRXVO\D*73IORZ,QVLJQDOOLQJ3DWK0DQDJHPHQW PHVVDJHVDQG/RFDWLRQ0DQDJHPHQWPHVVDJHVWKH)ORZODEHOLVQRWXVHG DQGLVVHWWR //&IUDPHQXPEHU
8VHGDWWKHLQWHU6*61URXWLQJXSGDWHSURFHGXUHWRFRRUGLQDWHWKHGDWD WUDQVPLVVLRQRQWKHOLQNOD\HUEHWZHHQWKH06DQG6*611RWXVHGIRU VLJQDOOLQJVHWWRE\WKHVHQGHUDQGLJQRUHGE\WKHUHFHLYHU 7,'
7KHWXQQHOLGHQWLILHUWKDWSRLQWVRXW00DQG3'3FRQWH[WVLQWKH GHVWLQDWLRQ*61,QVLJQDOOLQJPHVVDJHVLWLVVHWWRLQDOO90DQDJHPHQW PHVVDJHV/RFDWLRQ0DQDJHPHQWPHVVDJHVDQG0RELOLW\0DQDJHPHQW PHVVDJHV7KHIRUPDWRIWKH7,'LVDVIROORZV
*73¾
8
7 6 MCC digit 2 MNC digit 1 MSIN digit 1 MSIN digit 3 MSIN digit 5 MSIN digit 7 MSIN digit 9 NSAPI
5
4
3 2 MCC digit 1 MCC digit 3 MNC digit 2 MSIN digit 2 MSIN digit 4 MSIN digit 6 MSIN digit 8 MSIN digit 10
7,'VWUXFWXUH 0&&01&06,1GLJLWV
3DUWVRIWKH,06, GHILQHGLQ*06 16$3,
1HWZRUNVHUYLFHDFFHVVSRLQWLGHQWLILHU
1
Octet 1 2 3 4 5 6 7 8
½*3563URWRFROV
//& *60YHUVLRQKWWS ZZZHWVLIU
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• 8QDFNQRZOHGJHGSHHUWRSHHURSHUDWLRQ • $FNQRZOHGJHGSHHUWRSHHURSHUDWLRQ $OO//&OD\HUSHHUWRSHHUH[FKDQJHVDUHLQIUDPHVRIWKHIROORZLQJIRUPDW 8
7
6
5 4 Address Control Information FCS
3
2
1
Octet 1 2
//&KHDGHUVWUXFWXUH $GGUHVVILHOG
7KHDGGUHVVILHOGFRQWDLQVWKH6$3,DQGLGHQWLILHVWKH'/&,IRUZKLFKD GRZQOLQNIUDPHLVLQWHQGHGDQGWKH'/&,WUDQVPLWWLQJDQXSOLQNIUDPH7KH OHQJWKRIWKHDGGUHVVILHOGLVE\WHDQGLWKDVWKHIROORZLQJIRUPDW 8 PD
7 C/R
6
5 XX
4
3
2 SAPI
1
Octet 1
//&DGGUHVVILHOGVWUXFWXUH 3'
3URWRFROGLVFULPLQDWRUELWLQGLFDWHVZKHWKHUDIUDPHLVDQ//&IUDPHRU EHORQJVWRDGLIIHUHQWSURWRFRO//&IUDPHVKDYHWKH3'ELWVHWWR,ID
//&¾
IUDPHZLWKWKH3'ELWVHWWRLVUHFHLYHGWKHQLWLVWUHDWHGDVDQLQYDOLG IUDPH &5
,GHQWLILHVDIUDPHDVHLWKHUDFRPPDQGRUDUHVSRQVH7KH06VLGHVHQGV FRPPDQGVZLWKWKH&5ELWVHWWRDQGUHVSRQVHVZLWKWKH&5ELWVHWWR 7KH6*61VLGHGRHVWKHRSSRVLWH LHFRPPDQGVDUHVHQWZLWK&5VHW WRDQGUHVSRQVHVDUHVHQWZLWK&5VHWWR7KHFRPELQDWLRQVIRUWKH 6*61VLGHDQG06VLGHDUHDVIROORZV 7\SH
'LUHFWLRQ
&RPPDQG &RPPDQG 5HVSRQVH 5HVSRQVH
6*61VLGHWR06VLGH 06VLGHWR6*61VLGH 6*61VLGHWR06VLGH 06VLGHWR6*61VLGH
&5YDOXH
;;
5HVHUYHG ELWV 6$3,
6HUYLFH$FFHVV3RLQW,GHQWLILHULGHQWLILHVDSRLQWDWZKLFK//&VHUYLFHVDUH SURYLGHGE\DQ//(WRDOD\HUHQWLW\ &RQWURO
,GHQWLILHVWKHW\SHRIIUDPH)RXUW\SHVRIFRQWUROILHOGIRUPDWVDUH VSHFLILHG • &RQILUPHGLQIRUPDWLRQWUDQVIHU ,IRUPDW • 6XSHUYLVRU\IXQFWLRQV 6IRUPDW • 8QFRQILUPHGLQIRUPDWLRQWUDQVIHU 8,IRUPDW • &RQWUROIXQFWLRQV 8IRUPDW ,QIRUPDWLRQ
&RQWDLQVWKHYDULRXVFRPPDQGVDQGUHVSRQVHV )&6
)UDPHFKHFNVHTXHQFHFRQVLVWVRIDELW&5&FRGHZKLFKLVXVHGWRGHWHFW ELWHUURUVLQWKHIUDPHKHDGHUDQGLQIRUPDWLRQILHOGV
½*3563URWRFROV
61'&3 *60YHUVLRQKWWS ZZZHWVLIU
6XE1HWZRUN'HSHQGDQW&RQYHUJHQFH3URWRFRO 61'&3 XVHVWKHVHUYLFHV SURYLGHGE\WKH/RJLFDO/LQN&RQWURO //& OD\HUDQGWKH6HVVLRQ 0DQDJHPHQW 60 VXEOD\HU61'&3VSOLWVLQWRHLWKHU,3RU; 7KHPDLQIXQFWLRQVRI61'&3DUH • 0XOWLSOH[LQJRIVHYHUDO3'3V SDFNHWGDWDSURWRFRO • &RPSUHVVLRQGHFRPSUHVVLRQRIXVHUGDWD • &RPSUHVVLRQGHFRPSUHVVLRQRISURWRFROFRQWUROLQIRUPDWLRQ • 6HJPHQWDWLRQRIDQHWZRUNSURWRFROGDWDXQLW 13'8 LQWR/RJLFDO /LQN&RQWURO3URWRFRO'DWD8QLWV //3'8V DQGUHDVVHPEO\RI// 3'8VLQWRD13'8 7KH61'$7$3'8LVXVHGIRUDFNQRZOHGJHGGDWDWUDQVIHU,WVIRUPDWLV DVIROORZV 8 X
7 6 C T DCOMP
5 M
4
3 2 NSAPI PCOMP
1
Data
Octet 1 2 3-n
61'$7$3'8VWUXFWXUH
7KH6181,7'$7$3'8LVXVHGIRUXQDFNQRZOHGJHGGDWDWUDQVIHU,WV IRUPDWLVDVIROORZV 8 X
E
7 6 5 4 3 2 C T M NSAPI DCOMP PCOMP Segment offset N-PDU number N-PDU number (continued) N-PDU number (extended) Data
6181,7'$7$3'8VWUXFWXUH
1
Octet 1 2 3 4 5 6-n
61'&3¾ 16$3,
1HWZRUNVHUYLFHDFFHVVSRLQWLGHQWLILHU9DOXHVPD\EH (VFDSHPHFKDQLVPVIRUIXWXUHH[WHQVLRQV 3RLQWWRPXWOLSRLQWPXOWLFDVW 3700 LQIRUPDWLRQ 5HVHUYHGIRUIXWXUHXVH '\QDPLFDOO\DOORFDWHG16$3,YDOXH 0
0RUHELW9DOXHVPD\EH /DVWVHJPHQWRI13'8 1RWWKHODVWVHJPHQWRI13'8PRUHVHJPHQWVWRIROORZ 7
613'8W\SHVSHFLILHVZKHWKHUWKH3'8LV61'$7$ RU61 81,7'$7$ &
&RPSUHVVLRQLQGLFDWRU$YDOXHRILQGLFDWHVWKDWFRPSUHVVLRQILHOGV '&203DQG3&203DUHQRWLQFOXGHG$YDOXHRILQGLFDWHVWKDWWKHVH ILHOGVDUHLQFOXGHG ;
6SDUHELWLVVHWWR '&203
'DWDFRPSUHVVLRQFRGLQJLQFOXGHGLI&ELWVHW9DOXHVDUHDVIROORZV 1RFRPSUHVVLRQ 3RLQWVWRWKHGDWDFRPSUHVVLRQLGHQWLILHUQHJRWLDWHGG\QDPLFDOO\ 5HVHUYHGIRUIXWXUHH[WHQVLRQV 3&203
3URWRFROFRQWUROLQIRUPDWLRQFRPSUHVVLRQFRGLQJLQFOXGHGLI&ELWVHW 9DOXHVDUHDVIROORZV 1RFRPSUHVVLRQ 3RLQWVWRWKHSURWRFROFRQWUROLQIRUPDWLRQFRPSUHVVLRQLGHQWLILHU QHJRWLDWHGG\QDPLFDOO\ 5HVHUYHGIRUIXWXUHH[WHQVLRQV 6HJPHQWRIIVHW
6HJPHQWRIIVHWIURPWKHEHJLQQLQJRIWKH13'8LQXQLWVRIRFWHWV
½*3563URWRFROV 13'8QXPEHU
ZKHQWKHH[WHQVLRQELWLVVHWWR LIWKHH[WHQVLRQELWLVVHWWR (
([WHQVLRQELWIRU13'8QXPEHU 1H[WRFWHWLVXVHGIRUGDWD 1H[WRFWHWLVXVHGIRU13'8QXPEHUH[WHQVLRQV
