To meet the requirements of use cases in areas such as the Internet of Things, AR/VR, Industry 4.0 and the automotive sector, operators need to be able to provide computing resources across the whole telco domain – all the way to the edge of the mobile network. Service exposure and APIs will play a key role in creating solutions that are both effective and cost efficient. The latest Ericsson Technology Review article explores recent advances in the service exposure area that have resulted from the move toward 5G and the adoption of cloud-native principles, as well as the combination of Service-based Architecture, microservices and container technologies. It includes examples that illustrate how service exposure can be deployed in a multitude of locations, each with a different set of requirements that drive modularity and configurability needs.

1. sites
Application cloud
Network slices
Management and monetization
device SDK
Cloud infrastructure
Access, mobility and network applications
Transport
Distributed sites National sites Web-scale
player
Market-
place
ERICSSON
TECHNOLOGY
SERVICE
EXPOSURE
IN 5G
C H A R T I N G T H E F U T U R E O F I N N O V A T I O N | # 0 4 ∙ 2 0 1 9

2. ✱ SERVICE EXPOSURE IN 5G
2 ERICSSON TECHNOLOGY REVIEW ✱ MAY 7, 2019
Exposure – and service exposure in particular – will be critical to the creation
of the programmable networks that businesses need to communicate
efficiently with Internet of Things (IoT) devices, handle edge loads and pursue
the myriad of new commercial opportunities in the 5G world.
JAN FRIMAN,
MATTIAS EK,
PETER CHEN,
JITENDRA MANOCHA,
JOÃO SOARES
While service exposure has played a notable
role in previous generations of mobile
technology – by enabling roaming, for
example, and facilitating payment and
information services over the SMS channel –
its role in 5G will be much more prominent.
■ Thehighexpectationsonmobilenetworks
continuetorise,withnever-endingrequestsfor
higherbandwidth,lowerlatency,increased
predictabilityandcontrolofdevicestoservea
varietyofapplicationsandusecases.Atthesame
time,wecanseethatindustriessuchashealthcare
andmanufacturinghavestarteddemandingmore
customizedconnectivitytomeettheneedsoftheir
services.Whilesomeofthesedemandscanbemet
throughimprovednetworkconnectivitycapabilities,
thereareotherareaswherethoseimprovements
alonewillnotbesufficient.
Forexample,inrecentyears,contentdelivery
networks(CDNs)havebeenusedinsituationswhere
deploymentswithintheoperatornetworkbecamea
necessitytoaddressrequirementslikehigh
bandwidth.Morerecently,however,newuse-case
categoriesinareassuchasaugmentedreality(AR)/
virtualreality(VR),automotiveandIndustry4.0
havemadeitclearthatcomputingresourcesneedto
beaccessibleattheedgeofthenetwork.This
developmentrepresentsagreatopportunityfor
operators,enterprisesandapplicationdevelopersto
Service
exposure:A CRITICAL CAPABILITY
IN A 5G WORLD

3. SERVICE EXPOSURE IN 5G ✱
MAY 7, 2019 ✱ ERICSSON TECHNOLOGY REVIEW 3
introduceandcapitalizeonnewservices.The
opportunityalsoextendstoweb-scaleproviders
(Amazon,Google,Microsoft,Alibabaandsoon)
thathaveinvestedinlarge-scaleanddistributed
cloudinfrastructuredeploymentsonaglobalscale,
therebybecomingthemass-marketproviderof
cloudservices.
Severalweb-scaleprovidershavealreadystarted
providingon-premisessolutions(acombinationof
full-stacksolutionsandsoftware-onlysolutions)to
meettherequirementsofcertainusecases.
However,theabilitytoexpandtheavailabilityof
web-scaleservicestowardtheedgeoftheoperator
infrastructurewouldmakeitpossibletotacklea
multitudeofotherusecasesaswell.Suchascenario
ismutuallybeneficialbecauseitallowstheweb-scale
providerstoextendthereachofservicesthatbenefit
frombeingattheedgeofthenetwork(suchasthe
IoTandCDNs),whileenablingtelecomoperatorsto
becomepartofthevaluechainofthecloud
computingmarket.
SUCHASCENARIO...[ENABLES]
TELECOMOPERATORSTOBECOME
PARTOFTHEVALUECHAINOFTHE
CLOUDCOMPUTINGMARKET
Defining exposure
Exposure in the IT/telecom sphere can be divided into a number of subareas.
Data exposure is the process by which any kind of consumer (human or machine) can access data in a
system via secure and controlled mechanisms. Data is normally exchanged in one direction only. Common
examples of data exposure include accessing data via an application programming interface (API),
downloading a file or retrieving observations from a server.
Service exposure goes beyond data exposure to also include the ordering of execution of operations in
the underlying system. Using an API to initiate operations and/or processes is a good example of service
exposure. Services can be invoked bidirectionally by triggering events, for example. Data can also be
updated via a service.
Service exposure can be applied in a domain, as in network exposure, which exposes both data and
services of the network. Enterprise resource planning (ERP) and customer relationship management
(CRM) are other examples of domains where service exposure can be applied.
To maintain security, the details of the underlying system are typically hidden in exposure scenarios.

4. ✱ SERVICE EXPOSURE IN 5G
4 ERICSSON TECHNOLOGY REVIEW ✱ MAY 7, 2019
Figure1illustrateshowacollaborationwithweb-
scaleprovidersontelecomdistributedcloudscould
bestructured.Wearecurrentlyexploringa
partnershiptoenablesystemintegratorsand
developerstodeployweb-scaleplayerapplication
platformsseamlesslyontelecomdistributedclouds.
Distributedcloudabstractionontheweb-scale
playermarketplaceencompassesedgecompute,
latencyandbandwidthguaranteeandmobility.
InterworkingwithIoTsoftwaredevelopmentkits
(SDKs)anddevicemanagementprovides
integrationwithprovisioningcertificatehandling
servicesandassignmenttodistributedcloudtenant
breakoutpoints.
Inthemidtolongterm,serviceexposurewillbe
criticaltothesuccessofsolutionsthatrelyonedge
computing,networkslicinganddistributedcloud.
Withoutit,thegrowingnumberoffunctions,nodes,
configurationsandindividualofferingsthatthose
solutionsentailrepresentsasignificantriskof
increasedoperationalexpenditure.Thekeybenefit
ofserviceexposureinthisrespectisthatitmakesit
possibletouseapplicationprogramminginterfaces
(APIs)toconnectautomationflowsandartificial
intelligence(AI)processesacrossorganizational,
technology,business-to-business(B2B)andother
borders,therebyavoidingcostlymanualhandling.
AIandanalytics-basedservicesareparticularly
goodcandidatesforexposureandexternal
monetization.
Keyenablers
The5Gsystemarchitecturespecifiedby3GPPhas
beendesignedtosupportawiderangeofusecases
basedonkeyrequirementssuchashighbandwidth/
throughput,massivenumbersofconnecteddevices
andultra-lowlatency.Forexample,enhancedmobile
broadband(eMBB)willprovidepeakdatarates
Figure 1 Collaboration with web-scale providers on telecom distributed clouds
Devices/
local network
Access sites
Application cloud
Network slices
Management and monetization
Web-scale player platform and device SDK
Mobile
Fixed Cloud infrastructure
Access, mobility and network applications
Transport
Distributed sites National sites Web-scale
player
SDK
SDK
SDK
SDK
Market-
place

5. SERVICE EXPOSURE IN 5G ✱
MAY 7, 2019 ✱ ERICSSON TECHNOLOGY REVIEW 5
above10Gbps,whilemassivemachine-type
communications(mMTC)cansupportmorethan1
millionconnectionspersquarekilometer.Ultra-
reliablelow-latencycommunications(uRLLC)
guaranteeslessthan1mslatency.
FulfillingtheseeMBB,mMTCanduRLLC
requirementsnecessitatessignificantchangesto
boththeRANandthecorenetwork.Oneofthemost
significantchangesisthatthecorenetworkfunctions
(NFs)inthe5GCore(5GC)interactwitheachother
usingaService-basedArchitecture(SBA).Itisthis
changethatenablesthenetworkprogrammability,
therebyopeningupnewopportunitiesforgrowth
andinnovationbeyondsimplyaccelerating
connectivity.
Service-basedArchitecture
TheSBAofthe5GCnetworkmakesitpossiblefor
5GCcontrolplaneNFstoexposeService-based
Interfaces(SBIs)andactasserviceconsumersor
producers.TheNFsregistertheirservicesinthe
networkrepositoryfunction,andservicescanthen
bediscoveredbyotherNFs.Thisenablesaflexible
deployment,whereeveryNFallowstheother
authorizedNFstoaccesstheservices,which
providestremendousflexibilitytoconsumeand
exposeservicesandcapabilitiesprovidedby5GC
forinternalorexternalthirdparties.Thissupportof
theservicessubscriptionmakesitcompletely
differenttothe4G/5GEvolvedPacketCorenetwork.
Becauseitisservice-driven,SBAenablesnew
servicetypesandsupportsawidevarietyof
diversifiedservicetypesassociatedwithdifferent
technicalrequirements.5GprovidestheSBIfor
differentNFs(forexampleviaSBIHTTP/2Restful
APIs).TheSBIcanbeusedtoaddressthediverse
servicetypesandhighlydemandingperformance
requirementsinanefficientway.Itisanenablerfor
shorttimetomarketandcloud-nativeweb-scale
technologies.
The3GPPisnowworkingonconceptualizing5G
usecasestowardindustryverticals.Manyusecases
canbecreatedon-demandasaresultoftheSBA.
Distributedcloudinfrastructure
Theabilitytodeploynetworkslices–animportant
aspectof5G–inanautomatedandon-demand
mannerrequiresadistributedcloudinfrastructure.
Further,theabilitytorunworkloadsattheedgeof
thenetworkrequiresthedistributedcloud
infrastructuretobeavailableattheedge.Whatthis
essentiallymeansisthatdistributedcloud
deploymentswithintheoperatornetworkwillbean
inherentpartoftheintroductionof5G.Thescale,
growthrate,distributionandnetworkdepth(howfar
outinthenetworkedge)ofthosedeploymentswill
varydependingonthetelconetworkinquestionand
thefirstusecasestobeintroduced.
Ascloudbecomesanaturalassetoftheoperator
infrastructurewithwhichtohostNFsandservices
(suchasnetworkslicing),theabilitytoallowthird
partiestoaccesscomputingresourcesinthissame
infrastructureisanobviousnextstep.Contraryto
thetraditionalclouddeploymentsoftheweb-scale
players,however,computingresourceswithinthe
operatornetworkwillbescarcerandmuchmore
geographicallydistributed.Asaresult,resources
willneedtobeusedmuchmoreefficiently,and
mechanismswillbeneededtohidethecomplexityof
thegeographicaldistributionofresources.
Cloud-nativeprinciples
Theadoptionofcloud-nativeimplementation
principlesisnecessarytoachievetheautomation,
optimizedresourceutilizationandfast,low-cost
introductionofnewservicesthatarethekeyfeatures
ofadynamicandconstrainedecosystem.Cloud-
nativeimplementationprinciplesdictatethat
softwaremustbebrokendownintosmaller,more
manageablepiecesaslooselycoupledstateless
CORENETWORKFUNCTIONS
INTHE5GCINTERACTWITHEACH
OTHERUSINGASERVICE-BASED
ARCHITECTURE

6. ✱ SERVICE EXPOSURE IN 5G
6 ERICSSON TECHNOLOGY REVIEW ✱ MAY 7, 2019
servicesandstatefulbackingservices.Thisisusually
achievedbyusingamicroservicearchitecture,
whereeachpiececanbeindividuallydeployed,
scaledandupgraded.Inaddition,microservices
communicatethroughwell-definedandversion-
controllednetwork-basedinterfaces,which
simplifiesintegrationwithexposure.
Threetypesofserviceexposure
Therearethreemaintypesofserviceexposureina
telecomenvironment:
❭❭ network monitoring
❭❭ network control and configuration
❭❭ payload interfaces.
Examplesofnetworkmonitoringservice
exposureincludenetworkpublishinginformationas
real-timestatuses,eventstreams,reports,statistics,
analyticinsightsandsoon.Thisalsoincludesread
requeststothenetwork.
Serviceexposurefornetworkcontroland
configurationinvolvesrequestingcontrolservices
thatdirectlyinteractwiththenetworktrafficor
requestconfigurationchanges.Configurationcan
alsoincludetheuploadofcompletevirtualnetwork
functions(VNFs)andapplications.
Examplesofservice-exposure-enabledpayload
interfacesincludemessagingandlocalbreakout,but
itshouldbenotedthatmanyconnectivity/payload
interfacesbypassserviceexposureforlegacy
reasons.EventhoughIPconnectivitytodevicesisa
servicethatisexposedtotheconsumer,forexample,
itiscurrentlynotachievedviaserviceexposure.The
mainbenefitofaddingserviceexposurewouldbeto
makeitpossibletointeractwiththedatastreams
throughlocalbreakoutforoptimizationfunctions.
Leveragingsoftwaredevelopmentkits
AtEricsson,wearepositioningserviceexposure
capabilitiesinrelationtodeveloperworkflowsand
practices.DevelopersaretheoneswhouseAPIsto
createsolutions,andweknowtheyrelyheavilyon
SDKs.Therearecurrentlyadvanceddeveloper
frameworksforallsortsofadvancedapplications
includingdrones,AR/VR,theIoT,roboticsand
gaming.Beyondtheintrinsicvalueinexposing
nativeAPIs,anSDKapproachalsocreates
additionalvalueintermsofenablingtheuseof
softwarelibraries,integrateddevelopment
environments(IDEs)plug-ins,third-partyprovider
(3PP)cloudplatformextensionsand3PPruntimes
onedgesites,aswellascloudmarketplacesto
exposethesecapabilities.
Softwarelibrariescanbecreatedbyprepackaging
higher-levelservicessuchaslow-latencyvideo
streamingandreversecharging.Thiscanbe
achieved,forexample,byusingthecapabilitiesof
networkexposurefunctions(NEF)andservice
capabilityexposurefunctions(SCEF),creating
ready-to-deployfunctionsorcontainersthatcanbe
distributedthroughopenrepositories,oreven
marketplaces,insomecases.Thispossibilityis
highlyrelevantforedgecomputingframeworks.
SupportforIDEplug-inseasestheintroductionof
3PPserviceswithjustafewadditionalclicks.
Selectedcapabilitieswithin3PPcloudplatform
extensionscanalsocreatevaluebyextendingIoT
devicelife-cyclemanagement(LCM)forcellular
connecteddevices,forexample.Theautomated
provisioningofpopular3PPedgeruntimesontelco
infrastructureenables3PPruntimesonedgesites.
Finally,cloudmarketplacesareanidealplaceto
exposeallofthesecapabilities.Thedeveloper
subscribestocertainservicesthroughtheirexisting
account,gainingtheabilitytoactivateavarietyof
libraries,functionsandcontainers,alongwithaccess
toplug-instheycanworkwithand/ortheautomated
provisioningrequiredforexecution.
CLOUDMARKETPLACES
AREANIDEALPLACETO
EXPOSEALLOFTHESE
CAPABILITIES

7. SERVICE EXPOSURE IN 5G ✱
MAY 7, 2019 ✱ ERICSSON TECHNOLOGY REVIEW 7
Functionalarchitectureforserviceexposure
Thefunctionalarchitectureforserviceexposureis
builtaroundfourcustomerscenarios:
❭❭ internal consumers
❭❭ business-to-consumers (B2C)
❭❭ business-to-business (B2B)
❭❭ business-to-business-to-business/consumers
(B2B2X).
Inthecaseofinternalconsumers,applicationsfor
monitoring,optimizationandinternalinformation
sharingoperateunderthecontrolandownershipof
theenterpriseitself.InthecaseofB2C,consumers
directlyuseservicesviaweborappsupport.B2C
examplesincludecallcontrolandself-service
managementofpreferencesandsubscriptions.
TheB2Bscenarioconsistsofpartnersthatuse
servicessuchasmessagingandIoTcommunication
tosupporttheirbusiness.TheB2B2Xscenariois
madeupofmorecomplexvaluechainssuchas
mobilevirtualnetworkoperators,webscale,gaming,
automotiveandtelcocloudthroughweb-scaleAPIs.
Figure2illustratesthefunctionalarchitecturefor
serviceexposure.Itisdividedintothreelayersthat
eachactasaframeworkfortherealization.Domain-
specificfunctionalityandknowledgeareappliedand
addedtotheframeworkasconfigurations,scripts,
plug-ins,modelsandsoon.Forexample,theaccess
controlframeworkdeliversthebuildingblocksfor
specializingtheaccesscontrolsforaspecificarea.
Theabstractionandresourcelayerisresponsible
forcommunicatingwiththeassets.Ifsomeassetsare
locatedoutsidetheenterprise–atasupplieror
partnerfacilityinafederationscenario,forexample
–B2Bfunctionalitywillalsobeincludedinthislayer.
Thebusinessandservicelogiclayerisresponsible
fortransformationandcomposition–thatis,when
Figure 2 Functional architecture for service exposure
API gateway
Operator's
internal
applications
Operator’s
consumer
services
Operator’s services
to enterprises
Enterprises’ services to
consumers/enterprises
Developer portal,
marketplace & SDK
API management
Exposed service execution APIs & exposed management
BSS/OSS
Transformation Composition Orchestration
Business & service logic
Protocol stacks
Radio Core OSS BSS Cloud CoS Partner/
supplier
Routing Adaptation
Abstraction and resource layer
Internal B2B B2B B2B2X
In-house assets providing raw capabilities

8. ✱ SERVICE EXPOSURE IN 5G
8 ERICSSON TECHNOLOGY REVIEW ✱ MAY 7, 2019
thereisaneedtoraisetheabstractionlevelofa
servicetocreatecombinedservices.
TheexposedserviceexecutionAPIsandexposed
managementlayerareresponsibleformakingthe
servicediscoverableandreachablefortheconsumer.
ThisisdonethroughtheAPIgateway,withthe
supportofportal,SDKandAPImanagement.
Businesssupportsystems(BSS)andoperations
supportsystems(OSS)playadoubleroleinthis
architecture.Firstly,theyserveasresourcesthatcan
exposetheirvalues–OSScanprovideanalytics
insights,forexample,andBSScanprovide“charging
onbehalfof”functionality.Atthesametime,OSS
areresponsibleformanagingserviceexposureinall
assurance,configuration,accounting,performance,
securityandLCMaspects,suchasthediscovery,
orderingandchargingofaservice.
Oneofthekeycharacteristicsofthearchitecture
presentedinFigure2isthattheserviceexposure
frameworklifecycleisdecoupledfromtheexposed
services,whichmakesitpossibletosupportboth
short-andlong-tailexposedservices.Thisisrealized
throughtheinclusionandexposureofnewservices
throughconfiguration,plug-insandthepossibilityto
extendtheframework.
Anotherkeycharacteristictonoteisthatitis
possibletodeploycommonexposurefunctionsboth
inadistributedwayandindividually–in
combinationwithothermicroservicesforefficiency
reasons,forexample.Typicalcasesaredistributed
cloudwithedgecomputingandweb-scalescenarios
suchasdownload/upload/streamingwheretheedge
siteandterminalareinvolvedintheoptimization.
Theexposureframeworkisrealizedasasetof
looselyconnectedcomponents,allofwhichare
cloud-nativecompliantandmicroservicebased,
runningincontainers.Thereisnotaone-size-fits-all
deployment–someofthecomponentsareavailable
inseveralvariantstofitdifferentscenarios.For
example,componentsintheAPIgatewaysupport
B2Bscenarioswithfullchargingbuttherearealso
scaled-downversionsthatonlysupportreporting,
intendedfordeploymentininternalexposure
scenarios.
Otherkeypropertiesoftheserviceexposure
frameworkare:
COMMONEXPOSURE
FUNCTIONS[CANBEDEPLOYED]
BOTHINADISTRIBUTEDWAY
ANDINDIVIDUALLY
Terms and abbreviations
3PP – Third-party Provider | 5GC – 5G Core | AI – Artificial Intelligence | API – Application Programming
Interface | AR – Augmented Reality | B2B – Business-to-Business | B2BCX – Business-to-Business-to-
Business/Consumers | B2C – Business-to-Consumers | BSS – Business Support Systems | CDN – Content
Delivery Network | CoS – Communication Services | CRM – Customer Relationship Management |
eMBB – Enhanced Mobile Broadband | ERP – Enterprise Resource Planning | IDE– Integrated Development
Environment | IOT – Internet of Things | LCM – Life-cycle Management | mMTC – Massive Machine-type
Communications | NEF – Network Exposure Functions | NF – Network Function | ONAP – Open Network
Automation Platform | OSS – Operations Support Systems | SBA – Service-based Architecture |
SBI – Service-based Interface | SCEF – Service Capability Exposure Functions | SDK – Software
Development Kit | uRLLC – Ultra-reliable Low-latency Communications | VNF – Virtual Network Function
| VR – Virtual Reality

9. SERVICE EXPOSURE IN 5G ✱
MAY 7, 2019 ✱ ERICSSON TECHNOLOGY REVIEW 9
❭❭ scalability (configurable latency and scalable
throughput) to support different deployments
❭❭ diversified API types for payload/connectivity,
including messaging APIs (request-response
and/or subscribe-notify type), synchronous,
asynchronous, streaming, batch, upload/
download and so on
❭❭ multiple interface bindings such as restful,
streaming and legacy
❭❭ multivendor and partner support (supplier/
federation/aggregator/web-scale value chains)
❭❭ security and access control functionality.
Deploymentexamples
Serviceexposurecanbedeployedinamultitudeof
locations,eachwithadifferentsetofrequirements
thatdrivemodularityandconfigurabilityneeds.
Figure3illustratesafewexamples.
InthecaseofOperatorBinFigure3,service
exposureisdeployedtoexposeservicesinafullB2B
context.BSSintegrationandsupportisrequiredto
handleallcommercialaspectsoftheexposureand
LCMofcustomers,contracts,orders,servicesand
soon,alongwithchargingandbilling.OperatorB
alsousesthedeployedB2Bcommercialsupportto
acquireservicesfromasupplier.
InthecaseofOperatorA,serviceexposureis
deployedbothatthecentralsiteandattheedgesite
tomeetlatencyorpayloadrequirements.Services
areonlyexposedtoOperatorA’sownapplications/
VNFs,whichlimitstheneedforB2Bsupport.
However,duetothefactthatOperatorAhostssome
applicationsforanexternalpartner,bothcentrally
andattheedge,fullB2Bsupportmustbedeployed
fortheexternallyownedapps.
TheaggregatorinFigure3deploystheservice
exposurerequiredtocreateservicesputtogetherby
Figure 3 Service exposure deployment (dark pink boxes indicate deployed components)
Operator A
Customer
app
Operator
app/VNF
Customer
app
Operator
app/VNF
Customer
Access/local site Regional/national site
Supplier
B2B
Operator B
Aggregator
Customer
App
Direct
exposed
services
Aggregated
services
Operator
app
Hosted
app
Services at
the edge
Federated/
roaming
services
Supplied
service
B2BB2BB2B
B2B
B2B

10. ✱ SERVICE EXPOSURE IN 5G
10 ERICSSON TECHNOLOGY REVIEW ✱ MAY 7, 2019
Further reading
❭ Ericsson web page, Service enablement, available at:
https://www.ericsson.com/en/portfolio/digital-services/cloud-core/service--enablement
❭ Ericsson web page, Cloud core exposure server, available at:
https://www.ericsson.com/en/portfolio/digital-services/cloud-core/cloud-unified-data-management-and-
policy/cloud-core-exposure-server
❭ Ericsson web page, Cloud packet core, available at:
https://www.ericsson.com/en/portfolio/digital-services/cloud-core/cloud-packet-core
morethanonesupplier.UnifiedDeliveryNetwork
andweb-scaleintegrationbothfallintothiscategory.
Asexposuretotheconsumerisdonethroughthe
aggregator,thisalsoservesasaB2Binterfaceto
handlespecificrequirements.Examplesofthis
includetheadvertisinganddiscoveryofservicesvia
theportalsofweb-scaleproviders.
AsubsetofB2Bsupportisalsodeployedto
providetheserviceexposurethathandlesthe
federationrelationshipbetweenOperatorAand
OperatorB,inwhichbothpartiesareonthesame
levelintheecosystemvaluechain.
Conclusion
Thereareseveralcompellingreasonsfortelecom
operatorstoextendandmodernizetheirservice
exposuresolutionsaspartoftherolloutof5G.One
ofthekeyonesisthedesiretomeettherapidly
developingrequirementsofusecasesinareassuch
astheInternetofThings,AR/VR,Industry4.0and
theautomotivesector,whichwilldependon
operators’abilitytoprovidecomputingresources
acrossthewholetelcodomain,allthewaytotheedge
ofthemobilenetwork.Serviceexposureisakey
componentofthesolutiontoenabletheseusecases.
Recentadvancesintheserviceexposurearea
haveresultedfromthearchitecturalchanges
introducedinthemovetoward5Gandtheadoption
ofcloud-nativeprinciples,aswellasthecombination
ofService-basedArchitecture,microservicesand
containertechnologies.Asoperatorsbegintouse
5Gtechnologytoautomatetheirnetworksand
supportsystems,serviceexposureprovidesthem
withtheadditionalbenefitofbeingabletouse
automationincombinationwithAItoattract
partnersthatareexploringnew,5G-enabled
businessmodels.Web-scaleprovidersarealso
showinginterestinunderstandinghowtheycan
offertheircustomersaneasyextensiontowardthe
networkedge.
Modernizedserviceexposuresolutionsare
designedtoenablethecommunicationandcontrol
ofdevices,providingaccesstoprocesses,data,
networksandOSS/BSSassetsinasecure,
predictableandreliablemanner.Theycandothis
bothinternallywithinanoperatororganizationand
externallytoathirdparty,accordingtothetermsofa
ServiceLevelAgreementand/oramodelfor
financialsettlement.
Serviceexposureisanexcitingandrapidly
evolvingareaandEricssonisplayinganactiverolein
itsongoingdevelopment.Asacomplementtoour
standardizationeffortswithinthe3GPPand
Industry4.0forums,wearealsoengagedinopen-
sourcecommunitiessuchasONAP(theOpen
NetworkAutomationPlatform).Thisworkis
importantbecauseweknowthatmodernized
serviceexposuresolutionswillbeatheartof
efficient,innovativeandsuccessfuloperator
networks.

11. SERVICE EXPOSURE IN 5G ✱
MAY 7, 2019 ✱ ERICSSON TECHNOLOGY REVIEW 11
Jan Friman
◆ is an OSS/BSS expert
in the Architecture and
Technology team within
Business Area Digital
Services, where he is driving
the architecture of service
exposure. Since joining
Ericsson in 1997, he has
held various OSS/BSS-
related positions within the
company’s R&D, system
management and strategic
product management
organizations. He holds an
M.Sc. in computer science
from Linköping University,
Sweden.
Mattias Ek
◆ joined Ericsson in 1996
and currently serves as a
strategic product manager.
He has extensive experience
in service delivery platforms
and service enablement
domains, specializing in
consumer interaction,
mobile commerce and
consumer self-service. His
focus in recent years has
shifted toward exposure
and enablement solutions
for cellular IoT, massive
IoT and machine-type
communications. Today,
Ek leads the IoT Enabler and
Network Exposure team
in Solution Area Packet
Core with responsibility for
commercial and product
strategies.
Peter Chen
◆ is the technical product
manager leading the
technical solution and
evolution for the network
exposure area in Product
Development Unit UDM &
Policy. He has been working
in different areas within the
core network at Ericsson
since 2006 including IMS,
voice over Wi-Fi and Unified
Data Management (UDM),
and he has contributed more
than 10 patents in these
areas in recent years. He
holds a B.Sc. in materials
science and engineering
from Dalian University of
Technology, China.
Jitendra Manocha
◆ is strategic product
manager (5G Core) in
Solution Area Packet
Core within Business Area
Digital Services, where he
is responsible for the Cloud
Core Exposure Server, a
component of Ericsson’s
5G Cloud Core solution. He
joined Ericsson in 2004 and
has held various leading
positions in product lines,
R&D and services. He holds
an M.Sc. from KTH Royal
Institute of Technology in
Stockholm, Sweden.
João Soares
◆ is a solution manager for
distributed cloud, leading
Ericsson’s strategic solution
development for edge
computing. Before joining
the company in 2014, he
worked for Portugal Telecom
(now Altice Portugal),
during the introduction of
cloud technologies within
the operator’s network.
He holds both an M.Sc.
and a Ph.D. in electronics
and telecommunications
engineering from the
University of Aveiro,
Portugal.
theauthors

12. ISSN 0014-0171
284 23-3328 | Uen
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