w hat is in for D2D in 5G wireless support of underlay l ow-rate M2M links
5G and D2D low - TUT · 5G vision and D2D communications ... and mobility • New applications ......
Transcript of 5G and D2D low - TUT · 5G vision and D2D communications ... and mobility • New applications ......
Whatis5G?
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Thefifthgenerationofmobiletechnology(5G)ispositionedtoaddressthedemandsandbusinesscontextsof2020andbeyond.
Howdidithappened?
• Thestandardsfor5Ghavenotyetbeenset. 3
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Listofchanges• NeedforSpeed
– X40timesfaster– i.e.100Mbpsperdevice
• Higherfrequencies– GHz
• Moredifferentdevices– +IoT,wearables,cars
• Differenttechnologies– HetNets
• Moredensedeploymentsandmobility• Newapplications/services
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Whatdowehavenowasresearchers?• WhitepapersfromIndustry– Helpinguswithproblemstatements
• Tasksfrombusinesspartners– ProjectsfromEricssonorQualcommwouldbemostprobablyimplementedinnextreleasesofLTE
• Requestsfromusers– ”Wewantnewservices!”
• Forecasts– Ciscoguysknowwhattheyaredoing.
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5Gusecases– 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-likeServices– News,matches,events
5GRequirements– User– UserExperience• ConsistentUserExperience– togivewhatwasoffered• UserExperiencedDataRate• LatencyandMobility
– DeviceRequirements• OperatorControlCapabilitiesonDevices• Multi-Band-Multi-ModeSupportinDevices• ResourceandSignalingEfficiency• DevicePowerEfficiency
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5GRequirements– System– SystemPerformance• ConnectionDensity• TrafficDensity• SpectrumEfficiency• Coverage• ResourceandSignalingEfficiency
– EnhancedServices• ConnectivityTransparency• Contextualinformation– 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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TactileInternetiswherelatencyiscrucial!Watchthisvideo:https://www.youtube.com/watch?v=OoeCBL_thNg
D2Dasoneoftheenablers– Directcommunicationbetweendevicescontrolledbytheinfrastructurenetwork
– 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
D2Dapplicationslist– M2Mcommunications– Relaying– Contentdistribution– Gaming– Cellularoffloading– Directconnectivity– Advertisements– Socialnetworks–Wearables
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D2Dchallenges– ProposingadequateD2D-awarescenarios• Howtosellit?
– DevelopingD2D-centricsystemarchitecture• ThenetworkcoreshouldbecapableofD2D
– DesigningefficientD2Doperationmechanisms• Wedonotwantourbatterytodrain
– PerformanceevaluationofD2Dsolutions• Profsforindustryareneeded
– LeveragingavailableD2Dbenefits• Foroperators• Forclients
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Lessonslearned• 5Gisnotsomethingscary– It’sjustanewsetoftechnologies
• D2Dwouldbeapartof5G• Trytomemorizetheusecases• Whatarethemaintargetsof5G?• WhatisthedifferencebetweenD2DandyourBluetoothlinktotransferaphoto?
• AlsousecasesforD2D18