Towards 5G: Advancements from IoT to mmwave Communcations Next Generation and Standards Princeton IEEE 5G Summit May 26, 2015
5G requirements and challenges 1000x network capacity 10x higher data rate, 5x lower latency Industrial and vehicular applications Highly robust, reliable, responsive Mobile Broadband Internet of Things Mission Critical Applications New spectrum mmwave Long range, small data, energy efficient Massive number of devices 100x higher data rate Opportunistic access D2D/Ad-Hoc networks 2
Sub-6 GHz LTE Evolution, 10 s MHz, CA, MIMO 5G Key Technologies/Trends 5G Key Radio 5G Radio and Key Enabling Technologies/Trends Advanced MIMO and Beamforming New numerology, protocols and access schemes for IoT cm-wave (cmwave) 6 30 GHz >100 MHz, MIMO mm-wave (mmwave) > 30 GHz >500 MHz, Hybrid MIMO Beamforming Inter-RAT tight interworking D2D/Underlay networks Flexible 5G RAT air interface Network transformation and extension to edge and devices 3
Advanced MIMO/beamforming Lower frequency bands Higher frequency bands Beam aggregation to increase cell-edge data rate Adaptive 3D beamforming towards target users Multi-site coordinated transmission enabling cell-less network architecture Transmit and receive beamforming operation for both control and data channels Combination of analog and digital beamforming at both access point and user terminal 4
Inter-RAT tight interworking Tight coupling of LTE and 5G RAT to ensure smooth deployment migration, efficient traffic offloading over opportunistic radio links and seamless mobility across 5G small cells LTE serves as fallback link when 5G RAT experiences blockage (for high frequencies) Control plane anchored at coverage layer Different levels of user plane coupling envisioned: Intra-RAT and inter-rat fast and robust mobility handling and RLF recovery is essential especially in higher frequency spectrum 5
D2D/Underlay Networks Utilization of D2D connections for relay, local traffic offloading and aggregation to improve coverage, energy efficiency, robustness Enhanced D2D transmission with MIMO-BF at higher frequency bands to improve spatial reuse and spectral efficiency Network densification with self-backhauling to extend coverage for high data rates, improve capacity, and reduce channel blockage 6
5G IoT Massive IoT 106-107 connections per km2, 10 years+ battery life Small subcarrier spacing and long TTI Non-orthogonal multiplexing to support ultra-high number of connections Lightweight and connectionless protocols to reduce signaling overhead Mission critical IoT Packet loss ~10-9, end-to-end latency ~1 ms Large subcarrier spacing and short TTI Exploiting frequency diversity/robust coding schemes to improve reliability Low latency uplink access and transmission (contention or carrier sensing based shared data channel) Intel Confidential Do Not Forward 7
Putting things together: Flexible 5G RAT frame structure Mission critical IoT Massive IoT Mobile Broadban d Control and data TDM/FDM multiplexed Unified design for TDD/FDD Long TTI and short TTI support 8
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Extending the Cloud to the Edge and Devices Remote Cloud Basic Terminal To meet the content distribution and processing requirements, the cloud is moved to the edge A powerful device can also become a networking node itself to meet especially requirements for IoT Sensing/ Proximity Services 5G is about communications + computing and involves both network nodes and devices 10
5G Vision: A New Era of Mobile Computing & Connectivity SMART DEVICE S CLOUD AND DATACENTE R NETWOR K 0101010101010101010101010101 INFRAST 010101010101010101010101011 RUCTUR E Workloads Will be Shared & Coordinated: Smart Packet Processing, Network Offload, Data Analysis 5G Technologies Focus on the System, Instead of the Air Interface Alone 1 1
5G Innovation Network Multi-Radio Access Technology Virtualized Heterogeneous Network 5G Small Cell or Macro-Cell Remote Radio Head cm & mm-wave Arrays 500MHz+ Bandwidth Virtual core network (VNC) Multiband µ-wave array LTE Rel-15, WiFi 802.11ax Multi-RAT: LTE (FDD/TDD), HSPA+, 5G Internet Mobile device of 2020 IoT Device of 2020 Performance device 10Gbps+ 12
5G Innovation Device Ultra High Speed Inter-Processor Comms Multiple RATs Multi-band Support PHY processing GSM/EDGE Multi- Antenna Operation WCDMA Rel-15 Application Cores Comms Core BT 5.x Locatio n Core LTE Rel-15 GNSS WiFi 802.11ax WiGig 802.11 ad+ 5G FEM RF Proc DS P Senso rs Auto Interference Suppression (AIS) mm-wave cm and mm-wave antennas FEM Media Cores Baseband Low frequency RF (<6GHz) RF Integration Integration 4G-5G Transition Impact Advanced Baseband Signal Processing High Medium Low 13
Evolution of Wireless and Semiconductor Technologies Strained Silicon 90nm (Y2004) 65nm Hi-K Metal Gate 3D Transistors 45nm 32nm 22nm 14nm (Y2014) Mobile Internet has been riding on Moore s Law and will continue to do in the 5G era 10nm 7nm 3B Transistors/IC 300M Transistors/IC 5M Transistors/IC 3G (10 Kbps) (2 Mbps) (300 Mbps) 1994 2004 2014 14