5GvisionandD2Dcommunications

Aleksandr Ometov15.03.2016

Tampere,Finland

Whatis5G?

–Wehad2G,3Gandnowhave4G.• Whatis5G,anyideas?– NoGoogling!

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”5Gissomethingthattheyaresellingtoyou”

Thefifthgenerationofmobiletechnology(5G)ispositionedtoaddressthedemandsandbusinesscontextsof2020andbeyond.

Howdidithappened?

• Thestandardsfor5Ghavenotyetbeenset. 3

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Listofchanges• NeedforSpeed

– X40timesfaster– i.e.100Mbpsperdevice

• Higherfrequencies– GHz

• Moredifferentdevices– +IoT,wearables, cars

• Differenttechnologies– HetNets

• Moredensedeployments andmobility• Newapplications/services

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Whatdowehavenowasresearchers?• Wehavenotalot,really..• WhitepapersfromIndustry

– Helpinguswithproblemstatements

• Tasksfrombusinesspartners– ProjectsfromEricssonorQualcommwouldbemostprobablyimplemented innextreleasesofLTE

• Requestsfromusers– ”WewantfullHDvideos!”

• Forecasts– Ciscoguysknowwhattheyaredoing.

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Usecases– Nokia

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Usecases– detailed• BroadbandAccessinDenseAreas

– Serviceavailabilityindensely-populated,wherethousandsofpeoplepersquarekilometerliveand/orwork

• BroadbandAccessEverywhere– 50+MbpsEverywhere(100isatarget)

• HigherUserMobility– Mobileservicesinvehicles,trainsandevenaircrafts

• MassiveInternetofThings(IoT)– Smartwearables,WSNs

• ExtremeReal-TimeCommunications– TactileInternet(thereal-timereactionthatisexpectedtobewithinsub-millisecond)

• LifelineCommunication– Naturaldisaster– nomoreinfrastructure

• Ultra-reliableCommunications– Trafficcontrol,controllablerobots,publicsafety,health

• Broadcast-like Services– News,matches,events

5GRequirements– User– UserExperience

• ConsistentUserExperience– togivewhatwasoffered• UserExperiencedDataRate• LatencyandMobility

– DeviceRequirements• OperatorControlCapabilitiesonDevices• Multi-Band-Multi-Mode SupportinDevices• ResourceandSignalingEfficiency• DevicePowerEfficiency

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5GRequirements– System– SystemPerformance

• ConnectionDensity• TrafficDensity• SpectrumEfficiency• Coverage• ResourceandSignalingEfficiency

– EnhancedServices• Connectivity Transparency• Contextual information-- Location• Security• HighAvailability• Reliability 10

5GRequirements– Deployment– NetworkDeployment,OperationandManagement

• CostEfficiency• EnergyEfficiency• EaseofInnovationandUpgrade• EaseofDeployment• FlexibilityandScalability• UltraLow-costNetworks (Ruralareas)

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Technology–Well,everythingyougotfromthepreviouslectures.

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Justarecallaboutlatency

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D2Dasoneoftheenablers– Directcommunicationbetweendevicescontrolledbythe”Bigbrother”network

– Directconnectivity:• in-bandD2Dincellularnetworks(LTEDirect)• out-of-bandD2Dincellularnetworks(WiFi,BLE?)

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D2DApplications

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Cellular base station

Coverage area

Public safetyservice

Content sharing

Vehicularcommunication

Wearables

Industrial automation

Direct communication

Infrastructure communication

Emergency communication

Direct user link

Smart home

Smart parking

Public transport

Local advertisingProximal

communication

High-density environment

D2Dapplicationlist–M2Mcommunications– Relaying– Contentdistribution– Gamming– Cellularoffloading– Directconnectivity– Advertisements– Socialnetworks–Wearables

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D2Dchallenges– ProposingadequateD2D-awarescenarios

• Howtosellit?– DevelopingD2D-centricsystemarchitecture

• ThenetworkcoreshouldbecapableofD2D– DesigningefficientD2Doperationmechanisms

• Wedonotwantourbatterytodraininstantly

– PerformanceevaluationofD2Dsolutions• Profsforindustryareneeded

– LeveragingavailableD2Dbenefits• Foroperators• Forclients

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Lessonslearned• 5Gisnotsomethingscary– It’sjustanewsetoftechnologies

• Trytomemorizetheusecases• Whatarethemaintargetsof5G?• D2Dwouldbeapartof5G• WhatisthedifferencebetweenD2DandyourBluetoothlinktotransferaphoto?– Alsousecaseshere

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Thankyou

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