Zain MobileBroadband v1.0

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#

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IPBB HLD /or ZainIHSPA

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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


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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%#


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#$%&B RNC SGSN GGSN

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I'( I'PS G#

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GGSNGGSN

#$%&B RNC

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GGSN

P)*+&, C$-& /,&

I'(

I'PSG#

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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$2)-/.$#

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G(.

5oter wit( PoS

5oter wit( A9M

5oter wit( :t(ernet

A9M Switc(in'

/i're 6E A''re'ation cost comparison


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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

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IPS %ontrol

Plane

:t(ernetor

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:t(ernetor

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IPS 0ser

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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


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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#


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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


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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

Zain MobileBroadband v1.0

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