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8/9/2019 OWG003411 SCCP Signaling Analysis and Process ISSUE1.0.ppt
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HUAWEI TECHNOLOGIES CO., LTD. All rights reserved
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Internal
OWG003411 SCCP
Signaling Analysis and
Process
ISSUE 1.0
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HUAWEI TECHNOLOGIES CO., LTD. All rights reserved "age #
Chapter 1 General
Chapter 1 General
Chapter 2 Features and Functions of SCCPChapter 2 Features and Functions of SCCP
Chapter 3 Addressing and Routing Functions of SCCPChapter 3 Addressing and Routing Functions of SCCP
Chapter 4 Brief Introduction to SCCP Message ForatChapter 4 Brief Introduction to SCCP Message Forat
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1.1 Limitation o !"P "ransmission
"#e signaling $oint code is not t#e standard international code%
it is only eecti&e 'it#in a certain net'or(.
"#e limited ca$acity o t#e signaling $oint code )14*+it as
s$eciied +y CCI"", also limits t#e n-m+er o t#e signaling$oint to +e mar(ed.
"#e 4*+it SI can not satisy t#e increased re-irements o t#e
modern comm-nication as 'ell% since it can only +e assigned
to si/teen dierent -ser $arts.
inally% !"P can only $ro&ide t#e connectionless transmission
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1. "#e Location o SCCP in CCS2
W#en SCCP and !"P is com+ined toget#er% t#ey are
called as SP )net'or( ser&ice $art,.
SCCP and !"P*3 all locate in t#e net'or( layer o t#e
OSI model.
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Chapter 1 GeneralChapter 1 General
Chapter 2 Features and Functions of SCCP
Chapter 2 Features and Functions of SCCP
Chapter 3 Addressing and Routing Functions of SCCPChapter 3 Addressing and Routing Functions of SCCP
Chapter 4 Brief Introduction to SCCP Message ForatChapter 4 Brief Introduction to SCCP Message Forat
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eat-res and -nctions o SCCP
.1 A$$lication eat-res o SCCP
. Ser&ice -nctions o SCCP et'or(
8/9/2019 OWG003411 SCCP Signaling Analysis and Process ISSUE1.0.ppt
8/38HUAWEI TECHNOLOGIES CO., LTD. All rights reserved "age )
.1 A$$lication eat-res o SCCP
Ena+le to transer +ot# circ-it related and non*circ-it*
related signalling and -ser inormation in
telecomm-nication net'or(s.
Pro&ide en#anced addressing and ro-ting -nction% and
ena+le to ac#ie&e t#e direct glo+al transmission +et'een
dierent CCS2 net'or(s.
Ena+le to $ro&ide connectionless ser&ice and connection*
oriented net'or( ser&ice.
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"#ere are t'o (inds o ser&ice
$ro&ided +y t#e SCCP
$rotocol
Connectionless Ser%ice
Connection&'riented Ser%ice
. Ser&ice -nctions o SCCP et'or(
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#he four classes are(
2 Basic connection&oriented class!
3 Flo) control connection&oriented class!
1 In&se*uence deli%er+ connectionless class!
, Basic connectionless class!
. Ser&ice -nctions o SCCP et'or(
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In the connectionless ser%ice-
the routing inforation ust .e
contained in each data pac/et!
$o logical connection is
esta.lished .et)een theend nodes!
..1 Connectionless ser&ices
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#he connectionless SCCP offers t)o ser%ices(
..1 Connectionless ser&ices
"#e class 0 ser&ice allo's t#e SCCP to insert SLS &al-es
randomly% or 'it# t#e aim to ac#ie&e an a$$ro$riate loads#aring 'it#in t#e -nderlying !"P net'or(5
"#e class 1 ser&ice re-ires t#e SCCP to insert t#e same SLS
or all t#e SCCP*S6Us )ser&ice data -nit, associated 'it#
gi&en $arameters 7se-ence control7 and 7called address7.
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originating
SCCP
rela+
SCCP
terinating
SCCP
U6" U6"
U6" U6"
U6"
U6"Sail-re
SCCP procedure of connectionless class
..1 Connectionless ser&ices
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Connection&oriented net)or/ ser%ice is a )a+ to
reali5e the echange of signalling inforation .+
esta.lishing a logical signaling connection
.et)een the net)or/ ser%ice users!
#he logical signaling connection is achie%ed .+
gi%ing a local reference nu.er to the signaling
essages .elonging together!
.. Connection*oriented ser&ice
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originating
SCCP
relay
SCCP
terminating
SCCP
C8 C8
CC CC
6"6"
6" 6"
A9A9
8SL6 8SL6
8LC 8LC
.. Connection*oriented ser&ice
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Chapter 1 GeneralChapter 1 General
Chapter 2 Features and Functions of SCCPChapter 2 Features and Functions of SCCP
Chapter 3 Addressing and Routing Functions of SCCPChapter 3 Addressing and Routing Functions of SCCP
Chapter 4 Brief Introduction to SCCP Message ForatChapter 4 Brief Introduction to SCCP Message Forat
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Addressing )ith in the SCCP of CCS6
a/es use of three separate eleents(
PC7
Glo.al #itle 8G#97
Su.&S+ste $u.er 8SS$97
3 Addressing and 8o-ting -nctions o SCCP
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SPA
S#PB
S#PC
SP
A eaple(
3 Addressing and 8o-ting -nctions o SCCP
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4 Brief Introduction to
SCCP Message Forat
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Chapter 1 GeneralChapter 1 General
Chapter 2 Features and Functions of SCCPChapter 2 Features and Functions of SCCP
Chapter 3 Addressing and Routing Functions of SCCPChapter 3 Addressing and Routing Functions of SCCP
Chapter 4 Brief Introduction to SCCP Message ForatChapter 4 Brief Introduction to SCCP Message Forat
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8o-ting la+el
!essage ty$e code
!andatory $arameter A
............
!andatory $arameter I
Pointer to $arameter !
................
Pointer to $arameter P
Pointer to start o o$tional $artLengt# indicator o $arameter !
Parameter !
..........
Lengt# indicator o $arameter P
Parameter P
Parameter name:;
Lengt# indicator o $arameter ;
Parameter ;
..........
Parameter name: ?
, , , , no special options
, , , 1 to , 1 1 1 spare
1 , , , return essage on error
1 , , 1 to 1 1 1 1 spare
=rie Introd-ction to Im$ortant Parameters o SCCP !essage
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"a.e
Message #+pe80#9
Protocol class
called part+ address pointer
calling part+ address part+
data pointer
called part+ address length
called part+ addresscalling part+ address length
calling part+ address
data length
data8#CAP9
F C; SIF "I FIB FS$ BIB BS$ F
!essage E/am$le
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2! Address
octet 1 Address indicator
octet 2 ! ! ! octet n Address
=rie Introd-ction to Im$ortant Parameters o SCCP !essage
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> 2 ? @ 4 3 1
8eser&ed
ornational-se
8o-ting
indicator
Glo+al
titleindicator
SS
indicator
Point
codeindicator
Address indicator
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,,,, ,,,, SS$ not /no)n@not used
,,,, ,,,1 SCCP anageent
,,,, ,,1, Reser%ed for I#0 allocation
,,,, ,,11 IS$ user part IS0P
,,,, ,1,, 'peration- aintenance andadinistration part 8'MAP9
,,,, ,1,1 Mo.ile application part MAP
,,,, ,11, Doe location register D"R
,,,, ,111 Eisitor location register E"R
,,,, 1,,, Mo.ile s)itching centre MSC
,,,, 1,,1 !!! !!! 1111 111, Idle
1111 1111 Reser%ed for e3pansion of nationaland international SS$
SS
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> 2 ? @ 4 3 1
8eser&edor
national-se
8o-tingindicator
Glo+altitle
indicator
SSindicator
Pointcode
indicator
Address indicator
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,,,, glo.al title not contained
,,,1 glo.al title onl+ contains address indication
,,1, glo.al title onl+ contains translation t+pes
,,11 glo.al title onl+ contains translation t+pes-nu.ering plan and encoding schee
,1,,Glo.al title onl+ contains translation t+pes-
nu.ering plan- encoding schee and natureof address indicator
,1,1F111, Reser%ed for international
111,F1111 Reser%ed for e3pansion
G" Code
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= 6 > ? 4 3 2 1
octet 1 #ranslation #+pe
octet 2 $P S
octet 3 $AI
octet 4 $o!2 $o!1
octet n
"y$e 4 G"
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> 2 ? @ 4 3 1
8eser&ed
ornational
-se
8o-ting
indicator
Glo+al
titleindicato
r
SS
indicator
Point
codeindicator
Address Indicator
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8311 03 0 0@ 06,=1 ,3 , 1=
0B 12 06 00 12 04 68 31 39 31 00 00 ,A 12
,6 ,, 12 ,4 >= 31 , 4, >6 2A >2 2= 4= ,4
2B =1 11 ,, >C =, A1 =, ,2 ,1 ,, ,2 ,1
,2 3, 1> ,4 ,= >4 ,, 3, 31 ,= ,, ?1 F4 =1,> 1 >= 31 , 4, >6 ,, ,, ,, ,,
#his is a SCCP essage .egan )ith SI'!
message e/am$le
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S-mmary
1 General
eat-res and -nctions o SCCP
3 Addressing and 8o-ting -nctions o SCCP
4 =rie Introd-ction to SCCP !essage ormat
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