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8/12/2019 Zain MobileBroadband v1.0
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Nokia Siemens Networks
IP Backbone HLD fori-HSPA ImplementationMobile Broadband Internet AccessZain, Sadi Arabia
!"#$
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1. DOCUMENT HISTORY................................................................................................3
2. INTRODUCTION..........................................................................................................4
2.1 Scope............................................................................................................................................................ .......... .5
2.2 Audience...................................................................................................................................................... .......... .5
3. SOLUTION OVERVIEW..............................................................................................6
3.1 Standardization......................................................................................................................................................6
3.2 Flat All IP architecture benefits............................................................................................................................7
3.3 Loical !onnecti"it# $iara%..............................................................................................................................&
3.' Iu (SI)*+A,- o"er A*............................................................................................................................ .......1/
3.5 Iu o"er IP................................................................................................................................................... .......... .11
3.6 Internet0SPA..................................................................................................................................................... .11
4. ZAIN IHSPA NETWORK ARCHITECTURE..............................................................13
'.1 +,! Interation ith IP ,etor4................................................................................................................15
'.2 S)S, Interation ith IP ,etor4............................................................................................................. .17
'.3 Flei IS, Interation ith IP ,etor4........................................................................................................1&
'.' i* ,ode0 areator Interation ith IP ,etor4................................................................................2/
'.5 LA, Structure for traffic separation and routin.........................................................................................22
'.6 !apacit# di%ensionin for IP netor4.........................................................................................................2'
'.7 ualit# of Ser"ice.................................................................................................................................................27
'.8 Securit#......................................................................................................................................................... ........27
5. IP ADDRESS PLANNING FOR MOBILE BROADBAND.........................................2
5.1 IP Address in +A,.............................................................................................................................................. .28
5.2 IP Address in Pac4et !ore...................................................................................................................................2&
5.3 IP Address Su%%ar# for Pac4et !ore.......................................................................................................... .....2&
6. NETWORK MANAGEMENT......................................................................................3!
". ABBREVIATIONS......................................................................................................31
%op&ri'(t )$$* Nokia Siemens Networks#
All ri'(ts reser+ed# Pa'e ) of .)
IPBB HLD /or ZainIHSPA
!ersion "#$
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"# Docment Histor&0pdate t(e docment (istor& eac( time t(ere are c(an'es made to t(e docment#
!ersion %(an'es Modified b& Date
"#$ /irst +ersion Swara1 Bara )$$2-$3-"4
%op&ri'(t )$$* Nokia Siemens Networks#
All ri'(ts reser+ed# Pa'e . of .)
IPBB HLD /or ZainIHSPA
!ersion "#$
8/12/2019 Zain MobileBroadband v1.0
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)# Introdction
ZAIN is t(e t(ird Mobile operator in Sadi Arabia, and (a+e a Sccessfll& deplo&mentof 5elase 6#$ t(ird 7eneration network sin' IP8MPLS network to pro+ide a reliablesecre and scalable IP Network to offer ser+ices to Mobile sbscribers# 9(e IPbackbone is bilt sin' MPLS core for applications sc( as 9raffic :n'ineerin', /ast5e-5ote and MPLS !PN fnctionalit 9(e IP8MPLS network is presentl& carr&in'+oice, Si'nallin' and also pro+ides 7i and 7n interface connecti+it& for PS core#
9(e resilient IP MPLS network w(ic( can be sed to transport an& t&pe of real time andlatenc& sensiti+e traffic can also be sed for Mobile ;ireless Broadband deplo&ment#
Nokia Siemens Networks is proposes to deplo& t(e iHSPA network sin' t(e IP8MPLStransport t(s le+era'in' on t(e eradio access and Direct 9nnel =D9> tec(nolo'& between radio and core network# 9(eHSPA tec(nolo'& (as two +ariants# 9(e first option is to rote all t(e traffic +ia t(e 5adio
Network %ontroller =5N%> and anot(er one called Internet HSPA =i-HSPA> re?ires t(att(e special i-HSPA adapter w(ic( contains 5N% fnctionalit& is deplo&ed at t(e radiosite#
9o'et(er t(e HSPA and t(e D9 tec(nolo'ies enable (i'(er bandwidt( wit( lower latenc&and more reliable packet transport# ;it( t(e redced cost per Mb&te HSPA and D9impro+e t(e end ser e
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reference arc(itectre of t(e /lat All IP arc(itectre and describe t(e mi'rationpossibilities from t(e le'ac& interfaces to t(e new IP based mobile network elementinterfaces# 9(e docment also 'i+es t(e recommendations for IP rotin' arran'ementsbetween different domains and t(e switc(in' infrastrctre for t(e Packet %ore site#Also t(e implementation of t(e co-e
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.# Soltion +er+iew
.#" Standardiation
9(e .7PP release 22 defined a (ierarc(ical network topolo'& w(ere t(e end serpa&load tra+erses t(ro'( +arios mobile network elements#
/i're "E .7PP release 22 arc(itectre
All t(e I interfaces were based on A9M w(ile t(e 7n was carried o+er IP wit(otspecif&in' t(e nderl&in' transport tec(nolo'
9(e .7PP release 4 introdced t(e HSPA and t(e D9 standards to enable betterperformin' packet data ser+ices#
/i're )E .7PP release 4 arc(itectre
9(e IPS interface in release 4 is based on IP and (as no more specified la&er )
tec(nolo' 9(e I PS control plane is still (andled b& S7SN w(ile t(e ser plane isroted directl& between 5N% and 77SN# 9(is enables (ardware cost-sa+in's in S7SNconfi'ration w(ile ser plane switc(in' capacit& is no more needed t(at mc(# 9(ereare few e w(ere t(e trafficb&passes t(e 5N%#
%op&ri'(t )$$* Nokia Siemens Networks#
All ri'(ts reser+ed# Pa'e 4 of .)
IPBB HLD /or ZainIHSPA
!ersion "#$
#$%&B RNC SGSN GGSN
GGSNGGSN
I'( I'PS G#
P)*+&, C$-& /,&
GGSNGGSN
#$%&B RNC
SGSN
GGSN
P)*+&, C$-& /,&
I'(
I'PSG#
E%0&
R$',&-
D/-&*, T'##&
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/i're .E Internet-HSPA arc(itectre
Dependin' on t(e mobile back(al tec(nolo'& and topolo'& t(e w(ole 5N% site can beb&passed bt it mst be considered t(at t(e circit switc(ed traffic is still roted +ia t(ele'ac& 5N%#
So t(e transition of t(e mobile networks own and t(eir transport networksF topolo'& is
on'oin'# :speciall& at t(e transport side t(e transition from circit switc(ed to packetswitc(ed transport and moderniation and restrctrin' of t(e network topolo'& andtec(nolo'& is ine+itable bt it is not tri+ial# 9(e e and :t(ernetinterfaces can rn clearl& (i'(er traffic capacities compared to A9M# 9o reac( t(e7i'abits a''re'ation capacit& t(e amont of necessar& links at t(e Packet %ore siteredces dramaticall& wit( PoS and :t(ernet
A00-&0),/$# C$., C$2)-/.$#
G$
GC$ $$$
G"$$ $$$
G"C$ $$$
G)$$ $$$
G)C$ $$$
G.$$ $$$
$ $#4 " ) C "$
G(.
5oter wit( PoS
5oter wit( A9M
5oter wit( :t(ernet
A9M Switc(in'
/i're 6E A''re'ation cost comparison
%op&ri'(t )$$* Nokia Siemens Networks#
All ri'(ts reser+ed# Pa'e * of .)
IPBB HLD /or ZainIHSPA
!ersion "#$
GGSNGGSN
#$%&B /,
RNC '#*,/$#)/,7
SGSN
P)*+&, C$-& /,&
I'PS
G#
E%0&
R$',&-
D/-&*, T'##&
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9(e fi're 6 illstrates t(at t(e a''re'ation of A9M based S9M-" links does not scaleeconomicall& w(en t(e PS traffic a''re'ation capacit& at t(e Packet %ore site increasesto 'i'abits per second##
If t(e operator (as is tiliin' t(e fibres or (as one SDH network t(ese in+estments canbe protected b& c(an'in' t(e A9M interfaces to (i'(er capacit& :t(ernet or PoSinterfaces# In t(e lon' rn wit( t(e diminis(ed need of le'ac& interfaces operationalsa+in's can be ac(ie+ed w(ile t(ere are fewer tec(nolo'ies to operate#
9(e Direct 9nnel between i-HSPA adapter and 77SN =/i're .> enables t(e rotin'optimiation of t(e ser data from t(e radio node into t(e 77SN node# 9(e HSPA canpro+ide p to "6,6 Mbps sbscriber capacit& and wit( t(e D9 t(e 5N% and S7SNcapacit& is re+ealed from switc(in' t(is traffic# 9(e 77SN pro+ides t(e connecti+it& toInternet and ot(er IP ser+ice networks and remo+in' of t(ese e
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3.3 L$0/*) C$##&*,/8/,7 D/)0-)
9(e Standard interface as defined b& .7PP 5elease 4 arc(itectre are as followsE
I'9PS: IPS is t(e lo'ical interfacebetween t(e S7SN877SNand 5N%#9(e IPS trafficcan be carried o+er IP8MPLS network# 9(e IP8MPLS network is sed for t(e transport#9(e IPS comprises of t(e Si'nalin' part between t(e 5N% and S7SN also known asIPS %P =%ontrol Plane># It also comprise of IPS 0P =0ser plane>, w(ic( consist oft(e actal pa&load#
I'-:Ir is t(e lo'ical interface between t(e 5N% =5adio Network %ontrollers>#9(ecommnications between t(e 5N%s are e
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3.4 I' ;SIGTRAN< $8&- ATM
9(e ne
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9(e redndanc& of t(e links and t(e network can be based on d&namic rotin'protocols and t(e standard IP8MPLS reco+er& tec(nolo'ies#
.#C I o+er IP
9(e difference between I =SI795AN> o+er A9M and I o+er IP is t(e 5N%s capabilit&to spport :t(ernet based IPS interfaces# 9(e pre+ios =I o+er A9M> implementationalread& enabled t(e /lat All IP arc(itectre and tiliation of e#'# :t(ernet tec(nolo'& inIPS interface# 9(e I o+er IP enables t(e remo+in' of A9M tec(nolo'& from t(e w(oleIPS domain#
/i're 3 I o+er IP
9(e I o+er IP and /lat All IP arc(itectre pro+ides more cost effecti+e wa& to a''re'atet(e I traffic from t(e se+eral 5N%s and ot(er mobile network elements at t(e samesite, simplif& t(e 5N% cablin', site arc(itectre, (ardware and network confi'ration#
9(e /lat All IP arc(itectre pro+ides also more fle
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In case t(e IPSec is sed t(is means t(at also t(e Ir traffic is roted +ia t(e secrit&'atewa& actin' as !PN (b#
9o spport i-HSPA as well t(e mltiser+ice roter needs to spport IP termination o+erA9M IMA interfaces and IPSec encr&ption as well#
IP8MPLSI'-
S%9PM.0A
S%%P
5ANAP
IPS %ontrol
Plane
:t(ernetor
A9M89DM
IP
:t(ernetor
A9M89DM
IP
0DP
79P-0
I 0ser Plane
IPS 0ser
Plane =7n>
9%P 8 /9P
B9S @ Adapter @M
Mana'ement
Plane
:t(ernet
orA9M89DM
IP
#$%&B /, /9HSPA )%),&-
GGSNSGSN
GGSNGGSN
I'PS
RNC
I'CS
/i're 2E i-HSPA topolo'& and interfaces
%op&ri'(t )$$* Nokia Siemens Networks#
All ri'(ts reser+ed# Pa'e ") of .)
IPBB HLD /or ZainIHSPA
!ersion "#$
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6# Zain iHSPA Network Arc(itectre
9(e dia'ram s(ows t(e iHSPA deplo&ed network# 9(ere are "46* Node-B sites in t(enetwork ot of w(ic( "33 sites will (a+e new iHSPA kit Node-B implemented for t(e
on'oin' Zain Mobile Broadband network implementation#
9(e e to t(e S5 roter at t(e local site# 9(e distribtions of"33 sites are in 5i&ad(, Makka(, Jedda( and Ab(a re'ion#
9(e e
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;it( Increase in Broadband traffic t(ere will be re?irement to increase t(e
IPBB capacit&, it (as been decided to p'rade all ftre leased line capacit& interms of S9M-6#Hence all t(e core sites ie# 5i&ad(, Jedda( and Dammam willbe e?ipped wit( S9M-6 line cards#
9(e IP Back Bone capacit& is dimensioned based on t(e traffic 'oin' to t(e PS
core elements ie# S7SN and /le
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6#" 5N% Inte'ration wit( IPBB Network
9(e e
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9(e fi're below s(ows t(e 5N% S9M-" inte'ration wit( t(e IPBB S5 roters# 9(ist&pe of connecti+it& will be rele+ant for t(e e
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". NSN 5N% =5adio Network %ontrollers> will contine to (a+e A9M8S9M-"
ports and will be connected to t(e S5 roters on t(e IPBB#
6Motorola 5N% w(ic( (as A9M ports will be mi'rated to 7i'abit :t(ernet and
will connect to t(e S5 roters at Dammam" and Madina("#
9able " s(ows t(e distribtion of A9M ports in t(e IPBB network# A total of
".="">, total )4 A9M ports will be re?ired in t(e IPBB network#
6#) S7SN Inte'ration wit( IPBB Network
9(e fi're below s(ows t(e inte'ration and connecti+it& dia'ram for S7SN =Ser+in'7P5S Spport Node> wit( t(e IPBB network# In all t(e . packet core +i# 5i&ad(",Jedda(" and Dammam) locations S;0 =Switc( 0nits> of S7SN will be mlti (omed tot(e S5 roter#
In 5i&ad(" and Jedda() S7SN presentl& t(ere are 4 S;0s w(ic( are connected to t(eS5 roters for 7i, 7a, 7n and LI7 traffic#
/i're ".E 7eneric %onnecti+it& dia'ram of 5N% and S7SN wit( IPBB
%op&ri'(t )$$* Nokia Siemens Networks#
All ri'(ts reser+ed# Pa'e "* of .)
IPBB HLD /or ZainIHSPA
!ersion "#$
8/12/2019 Zain MobileBroadband v1.0
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Additional ) S;0s will be added bot( in 5i&ad(" and Jedda(" location# 9(e totalre?irement of 7i'abit :t(ernet electrical Ports at 5i&ad( and Jedda( are 6 eac(#
Howe+er for Dammam) Packet core site t(ere will be new installation of S7SN at t(esite# 9(e total re?irement of 7i'abit :t(ernet ports at Dammam) S5 roter will be ")ports, si< eac( in S5#
9(e table below pro+ides t(e details of t(e port re?irements for connecti+it& wit( t(eS5 roters#
S No#Network:lement
:
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9(ere are ) /le
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9(e table below pro+ides t(e distribtion of t(e 7i'abit :t(ernet re?irements forPacket core sites of 5i&ad(", Jedda(" and Dammam)
S No#Network:lement
No# of:
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/i're "4E Inte'ration of HSPA Node-Bs wit( t(e IPBB Network for HSPA#
%op&ri'(t )$$* Nokia Siemens Networks#
All ri'(ts reser+ed# Pa'e )" of .)
IPBB HLD /or ZainIHSPA
!ersion "#$
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6#C !LAN Strctre for traffic separation and rotin'
Mobile networks (a+e different t&pes of traffic and t(ose s(old be kept separated# 9(e
traffic separation leads to increased secrit& and mana'eabilit& of t(e network#
Packet core traffic t&pesE
79P traffic between S7SN and ISN =7n>
0ser traffic between 77SN and e
%ontrol traffic between 5N% and S7SN =I-PS control plane>
0ser traffic between 5N% and S7SN, if direct tnnel between# 5N% and ISN =I-PSser plane>
9raffic between BS% and S7SN =7b o+er IP>
Network mana'ement traffic =@M>, %(ar'in' traffic =7a>
Statistics =traffica>, L5AS =between PAP0s>, lawfl interception =LI% control, LIB
ser >
!irtal rotin' and forwardin' =!5/> instances are sed in t(e %isco mltila&er siteswitc(es to keep t(e different traffic t&pes in separate rotin' tables in t(eir own !5/s#9(ese can be e to keep t(e different traffic t&pes separated#
/or capacit& reasons p(&sical interfaces can be dedicated for onl& one traffic t&pe, e#'#in NSN ISN t(e 7n and 7i interfaces are sin' dedicated 7i': interfaces#
;it( t(e implementation of HSPA in t(e network also re?ires direct tnnelin' featre tobe enabled between t(e 5N% to t(e 77SN#9(e Si'nalin' for HSPA call is between t(e5N% and S7SN#
/or 5i&ad(" and Jedda(" w(ic( are e
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9able 4E +lans for HSPA traffic 5i&ad(" S5 roter
Similarl& in Jedda(" t(e followin' !lans will (a+e to be created on t(e Jedda(" and
Jedda() S5 roters#
9able *E +lans for HSPA traffic Jedda(" S5 roter
Dammam) will (ost t(e new S7SN and /le, /; Access
.$4 data PS %ore - 7i) 77SN, 5adis =AS>, /; Access
.$* data PS %ore - DM)S7N$" 7B S7SN 9rnk
."$ data PS %ore - DM)"S7N$" %P S7SN 9rnk
."" data PS %ore - DM)S7N$" 0P S7SN 9rnk
.*$ data 5N% 0P 5N% Access
.*" data 5N% %P 5N% Access
2$$ oam PS %ore - AM All PS %ore N:s 9rnk
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9able 4E 5e?9able *E !lan re?irement at Dammam) S5 roters
!irtal rotin' and forwardin' =!5/> instances are sed in t(e S5 roters to keep t(edifferent traffic t&pes in separate rotin' tables in t(eir own !5/s# 9(ese are t(ene, 5N% /ISN =IPS 0P> and also between t(e 5N% 5N% =Ir%P, Ir 0P>
S N$. VPN #)& VLAN /#*'%&% /# ,& VPN
" IPS0P ."",.$", .$)
) IPS%P ."$, .$" ,.$)
. Ir0P .*", 2$$
6 Ir%P .*),2$$
9able 3E !PNs for HSPA network
6#4 %apacit& dimensionin' for IPBB network
9(e capacit& dimensionin' of t(e IPBB8MPLS network is forecasted based on t(enmber of sbscribers per re'ion# 9raffic anal&sis for t(e backbone indicates t(at t(erewill be sr'e in traffic between t(e core sites +i# 5i&ad(, Jedda( and Dammam#9rafficwill also 'row for ma1or sites like Makka(, Madina(, Ab(a and Bra&da#;it( additionalInternet 7atewa& at Dammam site pro+isions (a+e to be de+eloped to tilie it forBackp for 5i&ad( and Jedda( re'ion# 9(e capacit& is dimensioned on t(e IPBB sc(t(at it can cater to C$ percent of t(e internet traffic, if one Internet 7atewa& or ISP fails#
9(e total traffic t(ro'(pt forecast for S7SN and 77SN for 5i&ad( re'ion is C 7bps,for Jedda( re'ion is 4 7bps and for Dammam re'ion is . 7bps#
;it( traffic increase t(e core backbone, sbse?entl& t(e 7i'abit :t(ernet connecti+it&between t(e site roters +i# %A5,S5 and %5S roters is dimensioned as follows#
A%%/,/$#) G/0)(/, E,&-#&, C$##&*,/8/,7SN$. POP L$*),/$# OSR1 9 OSR2 OSR1 9 CAR OSR2 9 CAR CAR 9 CRS
%op&ri'(t )$$* Nokia Siemens Networks#
All ri'(ts reser+ed# Pa'e )6 of .)
IPBB HLD /or ZainIHSPA
!ersion "#$
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" 5i&ad(" . . . .
) 5i&ad() . . . .
. Jedda( " . . . .
6 Jedda( ) . . . .
C Dammam" ) ) ) )4 Dammam) ) ) ) )
9able 2E 7i'abit :t(ernet Port re?irement for %ore sites
#
9(e table below pro+ides t(e nmber of 7i'abit :t(ernet connecti+it& to be a'mentedfor remote sitesE
A%%/,/$#) G/0)(/, E,&-#&, C$##&*,/8/,7
S N$. POP L$*),/$# OSR1 9 OSR2
" Makka(" )
) Makka( ) )
. Bra&da "
6 Madina(" "
C Madina() "
4 Ab(a "
9able "$E 7i'abit :t(ernet Port re?irement for remote sites
9(e capacit& a'mentation s(eet for IPBB Leased Lines is mentioned below# 9(eseleased lines will be a'mented based on t(e traffic tiliation# 9(e met(od adopted b&
Zain is OA'ment as &o 'row Omodel#
L/#+ D&*-/,/$#A%%/,/$#)
;#>STM4 Bsiness 0nit create software soltionst(at atomate operational and bsiness processes to redce comple
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9(e .rdpart& element mana'ement tools pro+ide also t(e prpose bilt tools for t(econfi'ration mana'ement, ser+ice pro+isionin' and network le+el trobles(ootin'#
*# Abbre+iations
Describe and e
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NMS Network Mana'ement S&stem
@M peration and Maintenance
SP/ pen S(ortest Pat( /irst
PAP0 Packet processin' nit
PM Performance Mana'ementPoS Packet o+er SN:9
PS Packet Switc(ed %ore
oS alit& of Ser+ice
5ADI0S 5emote At(entication Dial-In 0ser Ser+ice
5N% 5adio Network %ontroller
5S9P 5apid Spannin' 9ree Protocol
S%9P Stream %ontrol 9ransmission Protocol
SDH S&nc(ronos Di'ital Hierarc(&
S7SN Ser+in' 7P5S Spport Node
SN:9 S&nc(ronos optical networkin'
SS* Si'nalin' S&stem *
S9M-" S&nc(ronos 9ransport Modle
9A%A%S 9erminal Access %ontroller Access-%ontrol S&stem Pls
9%P 9ransport %ontrol Protocol
9DM 9ime-di+ision mltiple