Siemens Canada WQE5237001 User manual



User’s Manual & Installation Guide for:

WiN52XX/WiN51XX Series Outdoor CPE

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Disclaimer Of Liability

We have checked the contents of this manual against the hardware and software described. However, deviations from the description

cannot be completely ruled out.

RuggedCom shall not be liable for any errors or omissions contained herein or for consequential damages in connection with the

furnishing, performance, or use of this material.

The information given in this document is reviewed regularly and any necessary corrections will be included in subsequent editions. We

appreciate any suggested improvements. We reserve the right to make technical improvements without notice.

Registered Trademarks

RuggedMAX-BST™, RuggedServer™, RuggedWireless™, RuggedCom Discovery Protocol™ (RCDP™), RuggedExplorer™, Enhanced

Rapid Scanning Tree Protocol™ (eRSTP™), are trademarks of RuggedCom Inc. Rugged Operating System® (ROS®) and

RuggedSwitch® are registered trademarks of RuggedCom Inc. Other designations in this manual might be trademarks whose use by

third parties for their own purposes would infringe the rights of the owner.

Warranty

Five (5) years from date of purchase, return to factory. For warranty details, visit www.ruggedcom.com or contact your customer service

representative.

Contacting RuggedCom

Corporate Headquarters US Headquarters Europe Headquarters

RuggedCom Inc

30 Whitmore Road

Woodbridge, Ontario

Canada, L4L 7Z4

Tel: (905) 856-5288

Fax: (905) 856-1995

Toll-free: 1 (888) 264-0006

RuggedCom

1930 Harrison St., Suite 209

Hollywood, Florida

USA, 33020

Tel: (954) 922-7938x103

Fax: (954) 922-7984

Toll-free: 1 (888) 264-0006

RuggedCom

Unit 41, Aztec Centre,

Aztec West, Almondsbury, Bristol

United Kingdom BS32 4TD

Tel: +44 1454 203 404

Fax: +44 1454 203 404

Toll-free: 1 (888) 264-0006

Email: [email protected]

WiN5200 Table of Contents | 3

Table of Contents

Introduction.........................................................................................................6

1.1About this Manual................................................................................................................7

1.2General Description ............................................................................................................7

1.2.1Features.....................................................................................................................8

1.3Package Components and Unpacking.............................................................................8

1.4Safety Information...............................................................................................................8

Product Description .........................................................................................11

2.1Introduction.........................................................................................................................12

2.2IEEE 802.16e Mobile WiMAX Compliance....................................................................13

2.3Block Diagram....................................................................................................................14

2.4Features..............................................................................................................................15

2.4.1Mobile WiMAX Wave 2 MIMO Features.............................................................15

2.4.2Security....................................................................................................................17

2.4.3Time Division Duplexing (TDD)............................................................................20

2.4.4Coding Rate............................................................................................................20

2.4.5Modulation...............................................................................................................20

2.4.6Convolution Coding Error Correction ..................................................................21

2.5Deployment Models ..........................................................................................................21

2.5.1PTP Deployment ....................................................................................................21

2.5.2PMP Deployment ...................................................................................................21

2.5.3Non Line-of-Sight ...................................................................................................21

2.5.4Channelization........................................................................................................21

2.6Service Flows.....................................................................................................................22

2.6.1Service Flow Classification...................................................................................22

2.6.2Dynamic Service Addition.....................................................................................22

2.6.3Default Service Flows............................................................................................23

WiN5200 Table of Contents | 4

2.6.4Scheduling...............................................................................................................23

2.7Physical Description..........................................................................................................24

2.7.1Physical Interfaces Description............................................................................24

2.7.2LED Indication Description....................................................................................25

Mounting............................................................................................................27

3.1General ...............................................................................................................................28

3.2Site Survey.........................................................................................................................28

3.3Pole Mounting....................................................................................................................29

3.4Wall Mounting ....................................................................................................................29

Installation Procedure......................................................................................30

4.1Safety Hazards..................................................................................................................31

4.2Tools and Cables Required for the Installation.............................................................31

4.3Installing the WiN5200......................................................................................................31

4.3.1Pole Mounting.........................................................................................................32

4.3.2Wall Mount ..............................................................................................................33

4.4Cable Connections............................................................................................................35

4.4.1Installing the WiN1010 data adapter for WiN5200............................................35

Equipment Configuration and Monitoring......................................................38

5.1Configuring WiN5200 Basic Parameters .......................................................................39

5.2Aligning the CPE Antenna................................................................................................41

5.2.1CPE Antenna Alignment Procedure....................................................................42

5.2.2Link Indication.........................................................................................................43

Management......................................................................................................44

6.1General ...............................................................................................................................45

6.2SW Download/Upgrade....................................................................................................45

6.3Web-page Management...................................................................................................46

6.4SNMP Management..........................................................................................................50

WiN5200 Table of Contents | 5

Appendix A – Product Specification...............................................................51

Appendix B – IDU to ODU Cable Specifications............................................52

List of Acronyms ..............................................................................................54

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WiN5200 Introduction | 6

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ntroduction

WiN5200 Introduction | 7

1.1 About this Manual

ThismanualdescribestheinstallationproceduresofWiN51XX/WiN52XXOutdoorCPEwith

Ethernetinterfaceandiswrittenfortheinstallersandoperators.

WiN51XX/WiN52XX2productswillbereferredinthismanualasWiN5200fromnowon.

TheRuggedComWiN5200isamemberoftheWin‐Max™Efamily,alineofmobileWiMAX

broadbandwirelessaccesssystemsbasedonthe802.16emobileWiMAXstandard.TheWin‐

Max™EfamilyisdetailedintheSystemDescriptionmanualofRuggedCom.

ThismanualassumesthatusershavesomeexperiencewithWiMAXtechnologiesand

procedures.

Whilesomesafetyprecautionsarereviewedhere,thismanualassumesthatinstallershave

beentrainedinsafeinstallationpractices.Users,whoarenewtoWiMAXtechnologiesand

serviceprocedures,shouldnotrelyonthismanualforcomprehensiveguidance.

1.2 General Description

TheRuggedComWiN5200ODUisamemberoftheWin‐Max™Efamily,alineofWiMAX

BroadbandWirelessAccesssystemsbasedonthe802.16emobileWiMAXstandard,specially

designedforquadruple‐playapplications.

WiN5200isahigh‐performanceoutdoorunitthatprovidescomplete802.16emobileWiMAX

broadbandwirelessaccessfunctionalitytoarangeofindoormulti‐servicegateways.

TheWiN5200enablesthefullscopeoftriple‐play(includingtelephony,data,Video‐on‐Demand)

overtheWiMAXnetwork.Inthehome,tripleplayservicesaredistributedtoasinglegateway

forasimplehome‐networkingsolution.

TheWiN5200isbasedontheIEEE802.16estandardstoeffectivelymeettheuniquerequirements

ofthewirelessMetropolitanAreaNetwork(MAN)environmentandtodeliverbroadband

accessservicestoawiderangeofcustomers.Specificallydesignedforpoint‐to‐multipoint

broadbandwirelessaccessapplications,theWiN5200providesefficientuseofthewireless

spectrum,supportingarangeofuserenvironments.Theaccessandbandwidthallocation

mechanismsaccommodatehundredsofsubscriberunitspersector,supportingdifferentiated

servicestoamultipleofend‐users.

WiN5200 Introduction | 8

1.2.1 Features

 IntelligentWiMAXsubscriberunitforwirelesstriple‐playservicedelivery

 OutdoorunitwithETHinterfacetoindoorunit

 Automatic,self‐configured,plug‐n‐play

 Supporting1.X,2.Xand3.XGHzbands

1.3 Package Components and Unpacking

Checkthatthepackagecontains:

1.WiN52xxODUwithintegratedflatantenna

2.Pole/wallmountinghardware

Incaseofdamage,contacttheshippingcompany.

1.4 Safety Information

RF Exposure

TheWiN5200,anoutdoorCPE,iscompliantwiththerequirementssetforthinCFR47section

1.1307,addressingRFExposurefromradiofrequencydevicesasdefinedinOETBulletin65.

TheoutdoorCPEmobileunitshouldbepositionedmorethan0.6feet(20cm)fromhumans.

TheoutdoorCPEfixedunitshouldbepositionedatleast7feet(2m)fromhumans.

Lightning Protection

WhenWiN5200isinstalledinanoutdoorlocation,allindoorcomponents(Ethernet,power

supply)shouldbeconnectedthroughalightningprotector.

Thepurposeofthelightningprotectionistoprotectpeopleandequipmentlocatedindoors

fromlightningthatmightstriketheWiN5200oritsoutdoorcables.Therefore,thelightning

protectordeviceshouldbeinstalledindoors,ascloseaspossibletothepointwherethecables

enterthebuilding.Thelightningprotectorcanalsobeinstalledoutdoors,aslongasthecables

thatleadfromitindoorsarewellprotectedfromlightningbetweentheboxandthebuilding

entrance.

Power Cord Protection

TheWiN5200shouldalwaysbeconnectedtotheWiN1010dataadapterforbothpower

supplyanddatatransferpurposes.

WiN5200 Introduction | 9

Anyothertypeofconnection/applicationoftheWiN5200and/orWiN1010isnotallowed.

Routeallpowersupplycordssothatpeoplecannotwalkonthem,orplaceobjectsonor

againstthem.Thiscanpinchordamagethecords.

Servicing

Donotopenthecoverofthisproductandperformcorrectiveactionsunlessinstructedtodo

sointheoperatinginstructions.

Outdoor Grounding System

Verifythattheantennaorcablesystemisgrounded(earthed).

TheantennaisanintegralpartoftheCPE(ModelsWiN51XX)

TheCPE(antenna)installationmustbeasperArticle810oftheNEC.Ofparticularnoteisthe

requirementthatthegroundingconductornotbelessthan10AWG(Cu).Theschemeshould

beeitherinaccordancewithUL96and96A.LightningProtectionComponentsand

InstallationRequirementsforLightningProtectionSystems,ortestedinaccordancewithUL

50andUL497.

CAUTION

Toreducetheriskoffire,useonlyNo.26AWGorlargertelecommunicationlinecord

betweentheindoorandoutdoorunits.



WiN5200 Introduction | 10



NOTE:Thisequipmenthasbeentestedandfoundtocomplywiththelimits

foraClassBdigitaldevice,pursuanttopart15oftheFCCRules.Theselimits

aredesignedtoprovidereasonableprotectionagainstharmfulinterferenceina

residentialinstallation.Thisequipmentgenerates,usesandcanradiateradio

frequencyenergyand,ifnotinstalledandusedinaccordancewiththe

instructions,maycauseharmfulinterferencetoradiocommunications.

However,thereisnoguaranteethatinterferencewillnotoccurinaparticular

installation.Ifthisequipmentdoescauseharmfulinterferencetoradioor

televisionreception,whichcanbedeterminedbyturningtheequipmentoffand

on,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreofthe

followingmeasures:

‐Reorientorrelocatethereceivingantenna.

‐Increasetheseparationbetweentheequipmentandreceiver.

‐Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhich

thereceiverisconnected.

‐Consultthedealeroranexperiencedradio/TVtechnicianforhelp.



ThisdevicecomplieswithPart15oftheFCCRules.

Operationissubjecttothefollowingtwoconditions:

(1)Thisdevicemaynotcauseinterference,and(2)thisdevicemustacceptany

interference,includinginterferencethatmaycauseundesiredoperationofthe

device

Changesormodificationstothisequipmentnotexpresslyapprovedbytheparty

responsibleforcompliance(RuggedComInc.)couldvoidtheuser’sauthorityto

operatetheequipment.



WiN5200 Product Description | 11

roduct Description



WiN5200 Product Description | 12

2.1 Introduction

TheWiN5200ODUCPEisanIEEE802.16‐2005compliantwirelessdevicefordeploymentof

point‐to‐multipoint(PMP)andpoint‐to‐point(PTP)networkarchitectures.

TheWiN5200ODUCPEisanoutdoordevice.TheWiN5200ODUCPEisWiMAXForum

802.16eWave2(MIMO)Certifiedsubscribers.Eachsubscriberregistersandestablishesabi‐

directionaldatalinkwiththebasestationsectorcontroller.

TheCPEterminalsaregroupedintotwoclasses,OutdoorCPEsandResidentialGateways

(RG)whichareindoorunits.Therelationshipbetweenalltheunitsisillustratedbelow.

WiN5200 Product Description | 13

House

WiN1030-1

WiN1020-1

WiN1010-1

CPE

WiN52xx

BST

WiN70xx

CPE

WiN52xx

CPE

WiN52xx

Figure 2-1: Functional Overview of the CPEs

Thebasestationisconnectedtothehead‐endoverIPBackhaulorviawirelesschannels.The

outdoorCPEsareconnectedtothebasestationoverwirelesschannels.TheoutdoorCPEis

connectedtotheindoorresidentialgatewayoverEthernetorcoaxialnetworks.

2.2 IEEE 802.16e Mobile WiMAX Compliance

TheIEEE802.16‐2005specificationsdescribeaPMPbroadbandwirelessaccessstandardfor

systems.ThisstandardincludesdescriptionsforboththeMediaAccessControl(MAC)and

thephysical(PHY)layers.

TheWiN5200ODUCPEiscomplianttoIEEE802.16‐2005WiMAXforumWave2profile.

WiN5200 Product Description | 14

Note

The 802.16e standards are subject to amendment, and Win-MaxTM product family design compliance

applies to a specific revision of the standard. The Win-MaxTM product family does not support mesh

communication (direct subscriber-to-subscriber).

2.3 Block Diagram

TheCPEconsistsofthefollowingmodules:

1.Base‐Bandboard–includingtheWiMAX16eMIMOBase‐BandSoC(runningthe16e

MAC+PHY)plustheUserInterfaceplustheanalogfrontendthatinterfacetheRF

module.

2.PowerSupplyboard–DC/DCpowersupply.Convertsthe48VDCtothevariousvoltages

thatarefeedingtheDigitalandtheRFmodules

3.RFboard‐SingletransmitdualreceivemodulethatmodulatetheanalogWiMAXsignal

inputfromtheBase‐BandmodemtothehighfrequencyRFoutput.SeveralRFmodules

exist‐eachsupportingdifferentfrequencyband.

4.Chassis

5.Antenna–IntegrateddualpolarizationantennatosupporttheMIMOschemes

WiN5200 Product Description | 15

Base-Band

Power Supply

Indoor-Outdoor Cable

Antenna

Figure 2-2: WiN5200 Block Diagram

2.4 Features

2.4.1 Mobile WiMAX Wave 2 MIMO Features

Multiple‐Input,Multiple‐Output(MIMO)describessystemsthatusemorethanoneradioand

antennasystemateachendofthewirelesslink.Inthepastitwastoocostlytoincorporate

multipleantennasandradiosinasubscriberterminal.Recentadvancesinradio

miniaturizationandintegrationtechnologynowmakesitfeasibleandcosteffective.

Combiningtwoormorereceivedsignalshastheimmediatebenefitofimprovingreceived

signalstrength,butMIMOalsoenablestransmissionofparalleldatastreamsorgreater

throughput.Forexample,ina2x2MIMO(twotransmitandtworeceiveelements),dual

polarizationpoint‐to‐pointsystem,thecarrier’sallocatedfrequencycanbeusedtwice,

effectivelydoublingthethroughputdatarate.

Inpoint‐to‐multipointsystemsemployingMIMO,eachbasestationantennatransmitsa

differentdatastreamandeachsubscriberterminalreceivesvariouscomponentsofthe

transmittedsignalswitheachofitssubscriberantennasasillustratedinthefigurebelow.By

WiN5200 Product Description | 16

usingappropriatealgorithms,thesubscriberterminalisabletoseparateanddecodethe

parallelsimultaneouslyreceiveddatastreams.



Figure 2-3: MiMo Antenna System

2.4.1.1 Space-Time Coding

Space‐timecoding(STC)isatechniqueforimplementingtransmissiondiversity.Mobile

WiMAXusestransmitdiversityinthedownlinkdirectiontoprovidespatialdiversitythat

enhancesthesignalqualitytoaspecificsubscriberlocatedanywherewithintherangeofthe

antennabeam.Althoughprovidinglesssignalgainthanbeam‐forming,transmitdiversityis

morerobustformobileuserssinceitdoesnotrequirepriorknowledgeofthepath

MiMoMiMo

WiN5200 Product Description | 17

characteristicsofasubscriber’sparticularfrequencychannel.OnesuchSTCtechnique,

knownastheAlamoutiCode,waspublishedin1998[4]andhasbeenincorporatedintothe

WiMAX16estandard.

2.4.2 Security

Securitywasakeyfailingofolderbroadbandwirelesssystemsofthepast.Thewhyofitis

easytocomprehend‐‐‐anynetworkthattransmitsitsdataacrosswirelesssignalsratherthan

wiresisinherentlymoreopentointerference,intrusionorassault.Thisdoesnotmeansolid

broadbandwirelesssecurityisimpossible,justmuchmoredifficult.

Asbroadbandwirelessnetworkshavematuredsecurityfeatureshaveimproved.Withthe

adventofWiMAX,thesecuritytoolsetsavailabletobroadbandwirelessserviceproviders

havereachedalltimehighsoffunctionality.TodayʹsWiMAXnetworkscanbesecuredmore

effectivelythaneverbefore.

WiMAXandIEEE802.16SecuritySublayerprovidesforprivacy,authenticationand

confidentialityacrossthebroadbandwirelessnetwork.DefinedinitiallybyIEEE802.16‐2004

andthencorrectedandamendedbyCorrigendum1andIEEE802.16e‐2005respectively,the

SecuritySublayernowsupportsFixedandMobileoperation.

Therearetwomajordifferencesbetweenthestandards.Thefirstdifferenceisthatthesecurity

mechanismoftheIEEE802.16‐2004isbasedontheDOCSISstandard.Inthe802.16e‐2005

manychangeshavebeenmadeinthesecuritymechanisms.Theseconddifferenceisinthe

flexibilityofSSʹsconnectioncharacteristicswiththeBST.TheIEEE802.16‐2004onlysupports

fixedaccess.Infixedaccess,anSScannotmitigatetotheairinterfaceofanewBaseStation

(BST)withoutperformingthenetworkentryagainafteraconnectiontermination.TheIEEE

802.16e‐2005supportsmobileaccess.MobileaccessenablesanSStomovebetweenvarious

BSTcellswhilekeepingtheconnectionestablished.

TherearefiveprimaryaspectsofWiMAXsecuritythatshouldbeconsideredwhendesigning

asecurityplanforaWiMAXnetwork.Theserangefrommitigationtechniquesatthephysical

layertoimprovedwirelessauthenticationandencryptiontointrusionprotectionanddata

transportsecurity.Ateachlevel,choicesinimplementationandsecuritylevelscanbemade;

althoughinthecaseofthephysicallayeroptionsarelimited.

2.4.2.1 Physical Layer Security

TherearetwobasictypesofattacksthatcanaffectthephysicallayerofWiMAX.Oneis

jammingandtheotherispacketscrambling.Thefirstisrelativelystraightforward,andis

sometimestheresultofinterferenceratherthananattack.Jammingconsistsofastronger

WiN5200 Product Description | 18

signalthantheWiMAXnetworkoverwhelmingnetworkdatafeedseitherinintermittent

burstsorwithsustainedcarrierwaves.

SincemostWiMAXnetworkservicesaredeliveredoverlicensedbands(currently3.5GHz

internationallyand2.5GHzbothinternationallyandintheUS),thisoffersspectrum

relativelyquietfromaccidentalinterference.Accidentalinterferenceinlicensedspectrum

cannotalwaysbecompletelydiscountedasthereisapossibilityofsecondandthirdharmonic

interferencewaves,forexample,frommuchlowerfrequencysignalsifthoseareinclose

proximitytotheWiMAXantennasystemsorthatcrossthemwithasignalcloseenoughin

physicalproximitytolocallyoverloadtheWiMAXsignal.Inpractice,thisisrare.

Packetscramblingisanattackthatoccurswhencontrolpacketsintherespectivedownlink

anduplinksubframesaresniffedthenscrambledandreturnedtothenetwork.Thisattackis

muchhardertomountthanajammingattack.SincemostWiMAXnetworkstodayusetime

divisionduplexing(TDD),toincludetheWin‐Max™system,anattackercanparsethis

timingsequenceandcapturecontroldata,thepreambleandmap,scramblethemandsend

thembackwithcorrecttimingtointerruptlegitimatesignal,resultinginslowdownsand

effectivelyloweredbandwidth.Interceptedandscrambledpacketsarepossiblewith

frequencydivisionduplexing(FDD)aswellwhichtransmitsboththeuplinkanddownlink

simultaneously,butitisevenhardertoexploitthisattackthanwithTDDsystems.

Whileitmayseemthephysicallayerisinherentlymostvulnerableasthesecurityelementsof

WiMAXarelocatedathigherlayers,thefactishackerscanoftenfindlowerhangingfruitin

termsofusefulexploitshigherinthestack,becauseasWiMAXsupportsmultipleselections

onwhatserviceproviderscanchoosetoimplementintermsofauthentication,sometimesthe

doorcanbeleftopenforthembythechoicesmade.

2.4.2.2 Authentication

Traditionallythefirstlevelofsecurityauthenticationforolderbroadbandwireless

technologieshasbeenMACauthenticationandWiMAXsupportsthis,althoughproviders

donʹtsettleforthismethod.ThistechniqueallowedserviceproviderstologpermittedMAC

deviceaddressesandallowonlythoseaddressestoaccessthenetwork.Hackerslongago

figuredouthowtospoofthese.Ifabasestationisnotsetupwithadequateauthentication

measures,anattackercancapturecontrolpacketsandposeasalegitimatesubscribereven

witholderMACdeviceauthenticationenabled.

Asecond,newerandmuchbetterchoice,embracedbytheWin‐Max™system,isthebuiltin

supportforX.509devicecertificatesembeddedwiththeuseofextensibleauthentication

protocol‐‐‐transportlayersecurity(EAP‐TTLS)method,addedwiththe802.16estandardand

WiMAXForum.

WiN5200 Product Description | 19

EntertheEAP‐TLTSauthenticationmethod.Thistechniqueallowsboththesubscriberand

thebasestationtoauthenticateeachotherusinganX.509methodforboth,inadditiontoa

subscriberauthenticationwhichisbasedonwell‐knownsubscriberauthenticationtechniques

suchPAPandMS‐CHAP.MACcontrolheadersareneverencryptedinWiMAX,however

withEAPcarrierscanchoosetoauthenticatethem(buttheydonʹtnecessarilyhaveto).This

capabilityaddsanadditionallayerofauthenticationconfirmation.Itʹsanoperatorspecific

guidelinedecisionandistunableintheWin‐Max™system.

2.4.2.3 Encryption

ClearlythefirstlayerofdefenseforWiMAXoperatorsistoauthenticatealegitimateuseron

itsnetwork.However,WiMAX,withits802.16eratification,offerstoplinetoolsfor

encryptionofdata.Olderwirelessiterationsusedthedataencryptionstandard(DES)which

reliedona56‐bitkeyforencryption.Thisislargelyconsideredobsolete.WiMAX802.16e

certainlysupportsDES(3DES)butitalsoaddssupportfortheAdvancedEncryption

Standard(AES)whichsupports,128‐bit,192‐bitor256‐bitencryptionkeys.AlsoAESmeets

theFederalInformationProcessingStandard(FIPS)140‐2specification,requiredby

numerousgovernmentalbranches.Thistechnology,whichrequiresdedicatedprocessorson

boardbasestations,isrobustandhighlyeffective.

Trafficencryptionmaybeemployedper802.16ServiceFlowandissubjecttooperatorpolicy.

Therelevanceofencryptiontothenetworkoperatordeploymentisquestionable.Inthepast,

forexample,manycellularcarriersfocusedonauthenticationandmostlyignoredencryption.

Whetherthatwillchangeasmobileserviceprovidersrampupmorebroadbandapplications

isanopenquestion.

Thedownsidetotheseheavycomputingtasks(i.e.authenticationandencryption)isthatall

ofthisrequiresprocessorcycles,whichmayaffecttheperformanceofthesystem.

Nevertheless,theWin‐Max™systemandespecially,theSSandBST,whicharetheentities

thattakeactiveroleinheavysecurity‐relatedcomputations,werebuiltbottomtotopwitha

designgoalofoffloadingheavilycomputingtasksfromthehostprocessortoaspecificcircuit.

Consequently,noperformancedegradationisneglected.

2.4.2.4 Third Party Intrusion Protection

WeexaminedWiMAXauthenticationschemes,whichareamajorcomponentofasecure

network.Andwealsospokeofdataencryption.Clearly,WiMAXpossessessolidtools

alreadybuiltin.Butthereareconsiderationsbeyondjustgoodsecuritythatcandrivea

migrationtothirdpartyintrusiondetectionandprotectiontools‐‐‐namelybusinesscase

elements.Intrusionprotectionishowever,notdataprotection.Thesearetwodifferentclasses

ofsolution.Certainly,agoodthirdpartyintrusionprotectioncanmonitorandsecurea

networkʹsauthentication.However,manysolutionsalsoofferwormprotection,Trojanhorse

WiN5200 Product Description | 20

protection,defensesagainstviruses,backdoorexploitsanddenialofserviceattackstonamea

few.Someoftheseelementsarealmostabusinessnecessityforawirelessserviceprovider

andmayjustifythecostofanadditionalsecuritysuiteinitially.Forothercompanies,a

migrationstrategytoenhancedtoolsmakesthemostcosteffectivesense.

Agoodplacetostartisexaminingmarketandservicescenarios.Ifyourcustomerbaseis

highlysensitivetodataintegrity(financialsectororhospitalcustomers)thirdpartyintrusion

preventionsystemscanhelpsegmentcustomersfromeachotherbetteraswellassecurethem

fromoutsideattack.

Orinanotherexample,amobilenetworkthatoffersjustInternetaccessandvoicemaywish

toabrogateresponsibilityfordataencryptionandusesessioninitiationprotocol(SIP)

signalingforitsVoIPandWiMAXnativeauthenticationtools.

Referringtoencryption,clearlyanAESsupporteddataencryptionsystemgivesWiMAX

excellentsecurityinthisregard.However,additionalsolutionsthatmeetcustomerneeds

suchasvirtualprivatenetworksmayenhancethebusinessmodelandprovideadditional

sourceofrevenue.

2.4.3 Time Division Duplexing (TDD)

TheWiN5200CPEusestimedivisionduplexing(TDD)totransmitandreceiveonthesame

RFchannel.Thisisanon‐contentionbasedmethodforprovidinganefficientandpredictable

two‐wayPTPorPMPcelldeployment.Alluplinkanddownlinktransmissionschedulingis

managedbythebasestation.Thebasestationsendsdatatraffictosubscribers,pollsforgrant

requests,andsendsgrantacknowledgementsbasedonthetotalofalltraffictoallsubscribers.

2.4.4 Coding Rate

Eachburstofdatatransmittedoverthewirelessinterfaceispaddedwithredundant

information,makingitmoreresistanttopotentialover‐the‐airerrors.Thecodingrateisthe

ratioofuserdatatothetotaldatatransmittedincludingtheredundanterrorcorrectiondata.

Thebasestationsupportscodingratesof1/2,2/3,and3/4.

2.4.5 Modulation

ThemodulationtechniquespecifieshowthedataiscodedwithintheOFDMAcarriers.The

basestationsupportsQPSK,16QuadaratureAmplitudeModulation(QAM),and64QAM

modulations.

Siemens Canada WQE5237001 User manual

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