Ericsson's 5G network research Zoltán Turányi 5G Expert Ericsson Research, Hungary Demand 2020 … Devices & Consumers Applications … & Industry … Service Providers Network Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page Industry transformation Traditional Industries Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page Digitalize & Mobilize Transformed Industries SENSORS EVERYWHERE BROADBAND AND MEDIA EVERYWHERE 5g USE CASES SMART VEHICLES, TRANSPORT Infrastructure, monitor and control CRITICAL CONTROL OF REMOTE DEVICES INTERACTION HUMAN-IOT Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page Evolution Towards 2020 1000x Mobile Data Volumes 10x-100x Connected Devices 5x Lower Latency 10x-100x End-user Data Rates 2G 3G 4G 5G Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 10 years Battery Life for Low Power Devices Source: METIS, Ericsson AB 5G requirements 3GPP requirements expected in end-2016 IMT-2020 requirements expected finalized in mid-2017 Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page EηiΨθθδγȮθšźgšΦεεηδΦΨh 5G as a Global Standard Industry Collaborations System view on 5G LTE + new 5G radio Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page Standards, Open Source & industry alliances Academia and Research Institutes 5G radio concept 5G Radio Access ~2020 LTE Evolution Tight interworking “NX” No compatibility constraints Gradual migration “Existing” spectrum GHz GHz 10 GHz 30 GHz Below GHz Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page “New” spectrum 100 GHz GHz GHz 10 GHz 30 GHz Above GHz New spectrum below GHz 100 GHz NX ȫ Key technology features many also apply to LTE evolution Flexible, scalable and future-proof design Ultra-lean design Spectrum Energy efficient: minimize network transmissions not directly related to user data delivery Deployment Use cases Flexible and scalable system plane Massive beam-forming Multi-site coordination/connectivity System control Machine-type Access/backhaul integration communication User data Flexible PHY Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 10 Integrated D2D connectivity (Back to architecture) Principles › Functionality in two conceptual layers Actual functions (policing, QoS marking, DPI, charging, encryption (PDCP), mobility, parental control, cache, idle mode buffering, virus filter, etc ) Mobile Service Chaining (Functionality to chain these functions, execution optimization when co-located, support for context transfer at mobility) Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 36 10K feet view › There are small processing functions chained together IAP ȫ Typically smaller than a VM/container ȫ One VM/container processes many users ȫ Co-located functions execute in an optimized way (zero copy) P1 › Collectively they implement core functions and more P2 P3 BS BS BS UE Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 37 ȫ Some service network stuff (e.g., parental control) ȫ Some radio stuff (e.g., PDCP termination) › A logically centralized control plane ȫ Maps a user to a pre-established VM/container running the given function ȫ Configures that function for the user ȫ Controls chain forwarding ȫ Requests scale-in/out Example chains for a user peer Central site IP services network peer peering F3 IAP CL-DL IAP Internet CL-DL SFF SFF F2 BS site SFF peer CL-UL IAP BS SFF IP services network Local site CL-DL F4 Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 38 F1 device Beyond service chaining User Graphs › › › › Every user has (potentially) a unique graph This graph needs to be expressed The graph may change depending on events (e.g adding an additional PDN connection) A fairly wide range of function size RA_DHCP Radio IF PDCP UL only UL only DL only ULQoS-1 (QoSMark) BBV (Policer) DLQoS-1 (QoSMark) LI Radio IF-2 PDCP-2 UL only UL only ULQoS-2 (QoSMark) BBV-2 (Policer) PDN session + voice flow Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 39 APN-AMBR (BWPolicer) AMBR (BWPolicer) DL only MBR (BWPolicer) DLQoS-2 (QoSMark) PDN IF Research concept for core network Ç‹ Ç‹ Session Controller UDR Control Plane Ç‹ Chain Controller Radio Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 40 Ç‹ LR User Plane Ç‹ SF device Rx Ç‹ SFF Ç‹ IAP External networks (e.g operator, Internet) The new network Software principles Classic NFV Decomposition Non-telco small vBIG vBIG small vBIG small … Infrastructure Decomposing • Data Plane • Control Plane • Analytics • Applications • Orchestration Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 41 small small small small small small small small Platform layers Infrastructure “Same concept as microservices, but different realization” Handover with ctx transfer › Functions support context extraction/insertion › Controller can move contexts IAP ȫ Buffer for lossless handovers ȫ Buffer more for lossess and reordering free handovers P1 P2 P3 BS P4 BS UE P4 BS UE Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 42 › Many levels potentially › Other uses of live state migration ȫ ȫ ȫ ȫ Rearrange centralized/distributed Load balancing Code upgrade Scheduled maintenance Procedure › Implemented in Click › How much intelligence at the DP node? › What to expose on the CP/UP interface? Balázs Pinczel, Dániel Géhberger, Zoltán Turányi, Bence Formanek Towards High Performance Packet Processing for 5G,' IEEE Conference on Network Function Virtualization & Software Defined Networks (IEEE NFV-SDN), November 18, 2015, Los Angeles, USA Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 43 Analytics › Collection and evaluation of data for the purpose of gaining insight › A network is ideal target ȫ Generates a lot of data ȫ Correlation is required to really know what is going on ȫ Insight is actually useful › Recent advances in analytics enable real-time KPI calculation ȫ E.g., correlate all events of a subscriber with momentary bandwidth to a “satisfaction index” ȫ ~100ms timescale Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 44 The gap ȫ analytics and networking Separated location of data and action Moving data near to the action lack of analytics & business information in network actions analytics driven, programmable network behavior Analytics Analytics Architecture Analytics Analytics Action Analytics Control Action Action Action Network Architecture Analytics Action Action Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 45 Action Network Near Analytics Architecture Radio Analytics Action Radio Data Desired architecture App#2 App#1 • Top level analytics extended with node local components Analytics cloud (includes EEA/SDK) App#1 App#2 Local Analytics Local Analytics Local Analytics Local Analytics App#2 Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 46 • Flexible environment to deploy analytics applications anywhere Local Analytics • Enables closed loop use cases with actions on network level Example data flow RBS Analytics System Cell State Record ESR: Extended Session Record Streamed (~3 kbps) UE Profile Record UE Session Records Cell Trace (~10 kbps) fetched Neighbor Cells Record (~6 kbps) RBS Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 47 Architecture impact › Analytics data as first class citizen in network nodes ȫ Base decisions on readily available KPIs ȫ Not as an afterthought ȫ Not 15 mins later › Remove current information barriers ȫ ȫ ȫ ȫ Currently data is distributed in the system Certain parts not allowed to know parts Legacy limitation due to performance No need, we can better now Core network Policy & charging data, subscriber IDs, charging details, … bearer abstraction Radio network Radio situation & parameters bottleneck congestion info, location information, … Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 48 EηiΨθθδγȮθšźgšΦεεηδΦΨh 5G as a Global Standard Industry Collaborations System view on 5G LTE + new 5G radio Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 49 Standards, Open Source & industry alliances Academia and Research Institutes Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 50 ... Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page EηiΨθθδγȮθšźgšΦεεηδΦΨh 5G as a Global Standard Industry Collaborations System view on 5G LTE + new 5G radio Ericsson's 5G network... Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page 16 Implementation Efficiency, dynamic range, output power, antenna element size, … 15GHz Ericsson's 5G network research |... Service Providers Network Ericsson's 5G network research | © Ericsson AB 2016 | April 2016 | Page Industry transformation Traditional Industries Ericsson's 5G network research | © Ericsson AB 2016 |