5G: FROM MYTH TO REALITY APRIL 21, 2016 - ETSI, SOPHIA ANTIPOLIS 5G Requirements System Level Evaluation Dissemination Structuring the manifoldness of 5G via 5 „core services“ and KPI map T e c h n i c a l a p p r o a c h I – structuring the project activities via service integration drivers (SIDs) Technical approach – Basic multiplexing and scheduling of users Technical approach – MBB technology enablers Technical approach – MMC technology enablers Technical approach – MCC technology enablers Performance evaluation through system level simulations Technical Approach Start service-specific, analyse synergies/conflicts, harmonize, merge and integrate! Observation: A frame structure with dynamic adjustment of TTI size per user! T e c h n i c a l a p p r o a c h I I – Service specific resource configurations • MMC: moderate bandwidth with longer TTIs optimized for low cost and better coverage • MCC: higher bandwidth with shorter TTIs optimized for low latencies with reasonable overheads • MBB: short TTIs to quickly start TCP session followed by medium ize TTI for mimized overhead • BMS: long TTIs to maximize FEC gains from time-diversity Fantastic-5G Use Cases Positioning to ITU, 3GPP and NGM Service Use case Primary Challenge MBB UC1: 50 Mbps everywhere Coverage MBB + V2X UC2: High speed train High speed MMC UC3: Sensor networks Massive access MCC UC4: Tactile Internet Ultra-low latency MCC + V2X UC5: Automatic traffic control / driving Ultra-high reliability BMS UC6: Broadcast like services: Local, Regional, National Broadcast services MBB UC7: Dense urban society below 6GHz Capacity Core Services and KPIs KPI 1 KPI 2 KPI 3 KPI 4 KPI 5 KPI 6 KPI 7 KPI 8 Data throughput per area Latency Coverage Mobility Number of connected devices Reliability, availability Low cost Low energy MBB MCC MMC BMS V2X Primary Secondary Tertiary Mobile Broadband (MBB) Massive Machine Communications (MMC) Mission Critical Communications (MCC) Broadcast/Multicast Services (BMS) Vehicle-to-vehicle and vehicle-to- infrastructure communications (V2X) FANTASTIC-5G will avoid a one-fits-all solution for the New Air Interface! A divergence is coming: 2 asymptotes Where does 4G stumble? = 6 requirement drivers for 5G Mission & Partners M i s s i o n : The Mission of FANTASTIC-5G is to develop a flexible and scalable multi-service air interface with ubiquitous coverage and high capacity where and when needed. The air interface shall be highly efficient in terms of energy and resource consumption, shall be future proof and shall allow for sustainable delivery of wireless services far beyond 2020. To evaluate and validate the developed concepts and build up consensus on reasonable options for the standardization of 5G Funding volume: ~8 million Euro Start: July 1. 2015 Duration: 2 years . Technical Approach Technical Approach FANTASTIC-5G Flexible Air iNTerfAce for Scalable service delivery wiThin wIreless Communication networks of the 5th Generation 5G needs to enable … MCC MBB user 1 startup MMC time frequency One tile corresponds to the smallest user allocation In-resource Control Channel (CCH) with downlink scheduling grant. Downlink data payload CCH content summary: - UE identifier - PHY configuration for data payload. - HARQ information - MIMO information (a) Time-frequency multiplexing of users (b) In-resource control signaling t f MMC BMS MBB user 3 data MBB user 4 data MBB user 2 startup Small Cell: - Efficient small cell operation - Dynamic TDD operation - Optimized PHY numerology and waveform design Spectrum: - Support for FDD and TDD - Efficient aggregation of fragmented spectrum Frame Structure - Flexible frame structure - Shorter, and variable size TTIs - Flexible control channel design - Energy and complexity optimized Multinode operation - Efficient multi-node connectivity - Aggregation between layers - Aggregation between FDD and TDD Enhanced MIMO - mMIMO with enhanced MU-MIMO Interference handling - Network-based ICIC - Advanced interference-aware receivers UE eNodeB subframe index (exemplary) i i+4 i+8 i+12 Info regarding resource assignment ACK Data Service request UE eNodeB subframe index (exemplary) i i+4 • Additional delay • Depending on configuration certain amount of DL feedback required • Reduced collision probability through service request over-provisioning increases throughput • Envisaged solution for bigger packets and higher traffic load ACK Data Down to 1 bit per UE SRs >>PRACH preambles Preamble (a) One-shot transmission (b) Two-stage protocol • Faster, if successful, significantly less DL feedback • High collision probability reduces throughput, coded random access for scalability • Envisaged solution for very small packets and low traffic load • Sparse signal processing detectors time frequency 1-way low-latency transmission • Example: broadcast for V2V communication • Achieved by TDD and using a communication resource of short duration downlink uplink MCC 2-way low-latency transmission • Example: Acknowledged data transmission, the reception of ACK is included in the latency calculation • Achieving it with TDD may not be possible, needs to use FDD or full duplex • … an increase in available capacity • 1000x higher mobile data volumes, 10-100x higher end user rates • … an increase in number of connected devices • By a factor of 10-100 up to 300000 devices per access point • … an increase in offered reliability • 99.9999% for e.g. mission critical communications, control functionalities • … a decrease of Latency • reduction of up to a factor of 5 • … an increase in efficiency • resource utilization (e.g. energy and spectrum) BROADBAND Massive traffic capacity Reduce Cost Spectrum efficiency Access new spectrum EXTREME DENSITY Massive user density User content MISSION CRITICAL Very low latency High reliability High availability Security INNOVATIVE SERVICES Flexible bearer design 3 rd party policy BATTERY LIFE Signaling reduction Energy optimization NON TRADITIONAL DEVICES Short packet Sporadic access More devices and more device types 5G # of subscribers (= human or machine) amount of traffic/sub/month 2G Mobile voice, traffic scaling proportional to number of subs. 3G Start of mobile broadband. Usage per subscriber increasing. 4G Mobile entertainment, total traffic driven by average data usage instead of by number of subscribers. 5G At the same time as ultra-broadband continues to grow, the rise of M2M traffic and number of subscribers causes diverging requirements, both technical and economical. Simulation capabilities • Implement the most important features of both LTE and LTE-A technologies • Customizable network topologies, channel and propagation models (radio conditions), traffic models, mobility models • Is being extended for modelling 5G core services • Preliminary versions of the simulation environment are under development • Compliant with 3GPP LTE Rel.10+ • Politechnico di Bari LTE simulator: http://telematics.poliba.it/lte-sim Main innovations • Multi-service support and flexible network deployments with a user-friendly GUI Visualization of user’s density Visualization of QoS Red points denote higher user density around small cells Green points denote good QoS, while yellow denote medium QoS • FANTASTIC-5G VTC Spring 2016 New Air Interfaces Workshop in Nanjing/China, May 15-18 2016 • ICC 2016 Joint RAN Workshop Kuala Kumpur/Malaysia, May 23-27 2016 • EuCNC 2016 5GPPP Workshop on 5G Physical Layer Design and Hardware Aspects Below and Above 6 GHz together with Flex5Gware, mmMAGIC, Athens/Greece, June 27-30 • GLOBECOM 2016 Joint RAN Workshop Washington/USA, December 4-8 2016 Web: www.fantastic5g.eu w w w . f a n t a s t i c 5 g . e u Twitter: @fantastic5g Upcoming events: LinkedIn Group: Fantastic-5G