HNeBSON0214.docx

HNeBSON0214.docx

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HNeBSON0214

Overviewof3GPPworkitemsonHN（e）BandSONv0.0.3（2010-02）

Contents

Foreword

ThisdocumenthasbeenproducedbytheETSIMCC.

ThecolouredhighlightoftheUniqueIDentifier（UID）reflectsthestatusoftheworkitems:

ongoingorcompleted.

StoppedFeaturesandStudiesarelistedattheendofthepresentdocument.

Legend:

CompletedWI

Ongoing WI

MovedWItothenextRelease

StoppedWI

Scope

ThepresentdocumentcontainsH（e）NBandSONworkitemsacross3GPPReleasesandTSGs.

1Release8

1.1HomeNodeB/eNodeB（HomeNB）UID_380065

Resources:

S1,C1,C4

1.1.1Stage1forHNB_eHNBUID_380066

Resources:

S1

References

Document

Title/Contents

WID（s）

SP-070952

WIDonRequirementsforHomeNodeB/eNodeB

ImpactedSpecifications

TS22.011

Serviceaccessibility-S1

TS22.115

Serviceaspects;Chargingandbilling-S1

NewDedicatedSpecifications/Reports

-

-

Thereisongoingworkinseveral3GPPgroups（e.g.RAN2,RAN4,CT1,SA3）onspecifyingHomeNodeBandHomeeNodeB（e.g.TR25.820,TS36.300）.

"HomeNodeBandHomeeNodeB"refertothedeploymentassmallUTRAandE-UTRAcells,respectively,indomestic,smallofficeandsimilarenvironments.TheHomeNodeB/eNodeBinterconnectswiththe3Gcore/EvolvedPacketCore（EPC）overafixedbroadband（e.g.DSL,Cable,etc.）accessnetwork.

AlthoughmanyoftheexistingservicerequirementsforNodeBandeNodeBaccessapplyequallytoHomeNodeB/eNodeB,additionalservicerequirementsmayalsobeneededtoaddresse.g.security,quality,chargingandaccessrestrictionsresultingfromtheenvisageddeploymentscenarios.ItisexpectedthatHomeNodeBandHomeeNodeBwillhavecommonrequirements.

AsthereareongoingtrialsofHomeNodeBsusingnon-standardizedsolutions,thisworkdevelopscommonand,whenneeded,specificrequirementsforbothHomeNodeB/eNodeBaccesssystems.Thederivedrequirementssupportrelatedongoingworkinother3GPPTSGs.

Initialworkfocussedonreviewingthistopic,drawingupontheworkonSoLSA,withaviewtoidentifyingmodificationstoexistingspecifications.

Considerationwasgiventoservicerequirementsfore.g.:

∙HomeNodeBUTRAaccessto3Gservices;

∙HomeeNodeBE-UTRAaccesstoEvolvedPacketSystemservices;

∙SupportforClosedSubscriberGroups（CSG）;

∙SupportofEmergencyCalls;

∙OAMIssues;

∙LocalizationofHomeNodeB/eNodeBtocomplywithRadiocommunicationslicenseconditions;

∙LocalizationofHomeNodeB/eNodeBtocomplywithEmergencycallrequirements;

∙AuthenticationofHomeNodeB/eNodeB.

ServicerequirementsforbothUTRAanE-UTRAaccessforHomeNodeB/eNodeBtakeintoaccountaccesscapabilitiesandpossiblelimitationse.g.QoSandbandwidthrestrictions.ParticularattentionwasgiventotheoperationoftheequipmentinaccordancewiththelicencegrantedtothePLMNoperator.

MMI-Aspects-theneedforpossibledeploymentrequirements（e.g.plug&play）andremoteconfigurationbythePLMNoperator,anddegreeofcontrolappropriatefortheuseroftheHomeNodeB/eNodeBwereconsidered.

Considerationwasgiventodifferentialchargingfordifferentclassesofsubscribere.g.theowneroftheHomeNodeB/eNodeBandauthorized‘visitingguest'subscribers.

1.1.2SupportofClosedSubscriberGroup（CSG）UID_420019

Resources:

C4

References

Document

Title/Contents

WID（s）

-

-

ImpactedSpecifications

TS23.003

Numbering,addressingandidentification

TS23.008

Organizationofsubscriberdata

TS29.002

MobileApplicationPart（MAP）specification

TS29.272

EvolvedPacketSystem（EPS）;MobilityManagementEntity（MME）andServingGPRSSupportNode（SGSN）relatedinterfacesbasedonDiameterprotocol

NewDedicatedSpecifications/Reports

-

-

AtSP#42SP-08087422.011CR0141confirmedtheRequirementtosupportroamingsubscriberswithCSGhomenetworksubscriptionbutdidNOTconfirmedrequirementforhomenetworkindependentsupportofroamersinCSG.

ThisimpactedthefollowingCT4specifications:

TS23.003,TS23.008,TS29.002andTS29.272.

1.1.3CSGandIdleModeMobilityforLTEHomeeNodeBand3GHomeNodeBUID_410012/3

Resources:

C1

References

Document

Title/Contents

WID（s）

CP-080498

WIDonCSGandIdleModeMobilityforLTEHomeeNodeB

CP-080792

WIDonCSGandIdleModeMobilityfor3GHomeNodeB

ImpactedSpecifications

TS23.122

Non-Access-Stratum（NAS）functionsrelatedtoMobileStation（MS）inidlemode

TS24.008

MobileradiointerfaceLayer3specification;Corenetworkprotocols;Stage3

NewDedicatedSpecifications/Reports

TR24.801

3GPPSystemArchitectureEvolution（SAE）;CTWG1aspects

TS24.285

AllowedClosedSubscriberGroup（CSG）List;ManagementObject（MO）

TS24.301

Non-Access-Stratum（NAS）protocolforEvolvedPacketSystem（EPS）;Stage3

Linkedworkitems

SA3StudyonHome（e）NodeBSecurity（UID_380085）

RAN4/3/2Studyon3GHomeNodeB/eNodeB（UID_350039）

RAN3UTRANarchitecturefor3GHNB（UID_40054）

RAN2SupportofUTRAHNB（UID_400053）

RAN4Studyon3GHomeNodeB/eNodeB（UID_350039）

SA5StudyofSelf-OrganizingNetworks（SON）relatedOAMinterfacesforHomeNodeB（UID_360007）

SA1hascompletedtheservicerequirementsforLTEHomeNodeB（HeNB）inthescopeofRel-8.Asinglestandardizedsolutiongivesoperatorsatruemulti-vendorenvironmentforbothterminalsandinfrastructure.

ArchitectureandprotocolsaredevelopedinseveralWGse.g.RAN2,RAN3,RAN4,SA3,SA5（seelinkedWIs）.

Thesecanbedeployedassmall（E-）UTRAcellsindomesticandSmallOfficeHomeOffice（SoHo）environments.

The3GHNBinterconnectswiththe3Gcorenetworkoverafixedbroadband（e.g.DSL,Cable,etc.）accessnetworkviaaHNBaccessgateway（concentrator）.

TheHeNBinterconnectswiththeEPCcoreoverafixedbroadband（e.g.DSL,Cable,etc.）accessnetwork.

RAN4TR25.820（3GHomeNodeBStudyItemTechnicalReport）concludedthatHNBintroductionwouldhavedetrimentaleffectsonlegacymobiles（e.g.batterylife）andlegacysystemperformance（MMsignalling）,ClosedSubscriberGroup（CSG）functionalityisrequiredtomitigatesomeoftheseaspectsandimprovethesystemperformanceasthenumberofRel-8mobilepopulationgrows.

On3GHNB,CTdefinedabasicmechanismtosupporttheCSGconceptandidlemodemobilityto/fromCSGcells.

ForHeNBdeployment,therearenolegacyissueslikeforHomeNodeB（HNB）deploymentinUMTS.ItisthusexpectedthatmoreoptimizedsolutionsforsupportofCSGHeNBswouldbedevelopedby3GPPTSGCT.IfthisfunctionalityisnotprovidedinE-UTRANinRel-8thenE-UTRANwillhavethesamelegacyproblemsinRel-9asGSMandUMTShavehadinthepastwhenSoLSAandHNBhavebeenintroduced.

Objective

OneofthemainissueswiththedeploymentofHNBsinanexistingUMTSnetworkistomaintainbackwardcompatibilityofpre-Rel-8terminalsinaUMTSnetworksupportingHNBs.

Hence,theworkspecificto3GHNBwasrestrictedbytherequirementtoreuseasmuchaspossiblelegacyprocedures.

CTlookedattheCSGconceptandtheterminalIdleModemobilityto/frommacro3Gcellfrom/toCSG.

ThedesignofthenewEPCtakesintoaccounttherequirementtosupporttheCSGconceptforHeNBsleadingtoamoreintegratedsolutionforHeNBsupportinLTEthaninUMTS.TheCTwork:

∙DefinestheusageofCSGidatNASlayerattheUEsideandatnetworkside

∙DefinesaCSGwhitelisttoindicatetheCSGstowhichaUEhasaccess

∙ProvidesrequiredsignallingandmechanismsforLTECSGwhitelistconfigurationandmanagement.

∙Definestheidlemodemobilityproceduresto/frommacroLTEcellfrom/toLTECSGintermsofHeNBvalidationatCNlevel.

1.2UTRAHNBUID_390033

Resources:

R2,R4,R3,S5

1.2.1SupportofUTRAHNBUID_400053

Resources:

R2

Document

Title/Contents

WID（s）

RP-080752

WIDonSupportofUTRAHNB

ImpactedSpecifications

TS25.304

UserEquipment（UE）proceduresinidlemodeandproceduresforcellreselectioninconnectedmode

TS25.306

UERadioAccesscapabilities

TS25.331

RadioResourceControl（RRC）;Protocolspecification

NewDedicatedSpecifications/Reports

TS25.367

MobilityproceduresforHomeNodeB（HNB）;Overalldescription;Stage2

RAN2studyonlegacyHomeNBsupportforUTRA[R2-075466]concludedthatthepresentlyavailablemechanismsforlegacymobilemobilityforUTRAHomeNBdeploymentsarenotoptimalandhencerequirecompromisesindeployment.InthecasewhereUTRAandLTEHomeNBdeploymentreachdenselevelstheeffectonRAN&CNsignallingload,UEperformanceandfinallyUEbatterylifemaybecomesignificant.

ByimplementingspecificmobilityproceduresinRel-8mobilestosupportaCSGlikecellconcept,itshouldbepossibletoobviatethedisadvantagesposedbyUTRAHomeNBdeploymentsforRel-8mobiles.AsthepercentageofRel-8mobilespopulationgrows,thesignallingloadonthenetworkwilldiminishanduserexperiencecanbeenhanced.

TheworkspecifiesenhancedRel-8UTRAIDLEmodemobilityandtoconsiderenhancementstotheACTIVEmodemobilityinordertosupporttheCSGlikecellconcept（UTRAandLTE）.

RAN2investigatedtheadoptionofagreedLTECSGlikeconceptsforUTRA.ItisimportantthatlegacymechanismsforUTRAHomeNBco-existwiththeconceptschosenbythisWItoensurepre-Rel-8UTRANUEaresupported.TheoptimizationofUTRAHomeNBconceptsforthesupportoflegacyterminalswasnotexcluded.

ForRel-8thefollowingwereconsidered:

∙SupportofCSG（ClosedSubscriberGrouporrestrictedassociation）

∙MinimizetheimpacttoUEscampedonUTRAmacrocells

∙MinimizetheimpacttoUEsinCELL_DCHonUTRAmacrocells

∙Cellselection/reselectionfromUTRAmacrocelltoUTRAHomeNB

∙Cellselection/reselectionfromUTRAHomeNBtoUTRA

∙Cellselection/reselectionofUEsbetweenUTRAHomeNBs

∙HandoverofACTIV