Challenges and Scenarios of the fifth Generation (5G) Wireless Communications System

Transcription

1 Friday seminar November 15 th 2013 Challenges and Scenarios of the fifth Generation (5G) Wireless Communications System Dr. Afif Osseiran Ericsson Research METIS Project Coordinator facebook.com/metis2020 twitter.com/metis2020

2 Content About METIS 5G scenarios Examples of 5G Technical Components

3 5G Wireless access: Challenges Avalanche of Traffic Volume Massive growth in Connected Devices Wide range of Use cases & Requirements Device-to-Device Communications Car-to-Car Comm. 1000x in ten years 50 billion devices in 2020 New requirements and characteristics due to communicating machines Affordable and sustainable METIS Page 3

4 METIS Objectives Lay the foundation for Ensure a global forum for Build an early global consensus for 5G mobile communications Exploratory research Pre-standardization activities Standardization activities Commercialization WRC 12 WRC 15 WRC 18/19 METIS wireless@kth Page 4

5 METIS Objectives 50/500 B devices Up to 10Gbps Few ms E2E 10 years 1000x higher mobile data volumes x higher number of connected devices x typical end-user data rates 5x lower latency 10x longer battery life for low-power devices Develop a concept for future mobile and wireless communications system that supports the connected information society METIS wireless@kth Page 5

6 METIS Structure: work packages WP6 System Design and Performance WP1 (DOCOMO) Solutions WP2 (Huawei) WP3 (Alcatel-Lucent) WP7 Dissemination, Standardization and Regulation WP4 Multi-RAT /Multi-layer Networks WP3 Multinode/Multi-antenna Transmissions Testbed WP5 Spectrum Testbed Feedback Testbed WP2 Radio Link Concepts WP8 Project Management WP4 (NSN) WP5 (Nokia) WP6 (Ericsson) WP7 (Ericsson) Propagation Scenarios, KPIs Testbed WP8 (Ericsson) WP1 Scenarios, Requirements & KPIs METIS Page 6

7 METIS 5g Scenarios Amazingly fast Great Service in a crowd Best experience follows you Super real-time and reliable connections Ubiquitous things communicating Dense urban information society Virtual reality office bit-rate, delay METIS wireless@kth Page 7 Shopping mall Open air festival Stadium accessibility, large crowds Traffic jam Blind spots Mobile cloud processing accessibility (Coverage) mobility Emergency communications Traffic efficiency and safety Teleprotection in smart grid networks Massive deployment of sensors and actuators many simple devices, coverage delay, reliability, (redundancy) new industrial applications

8 METIS Page 8

9 METIS 5G Scenarios METIS Page 9

10 Five Challenges Very high data rate Very dense crowds of users Very low latency Very low energy, cost, and massive number of, devices Mobility METIS Page 10

11 Five Scenarios Amazingly fast Very high data rate Very dense crowds of users Great service in a crowd Super real-time and reliable connections. Very low latency Very low energy, cost, and massive number of, devices Ubiquitous things communicating Mobility Best experience.. follows you METIS wireless@kth Page 11

12 Scenario: Amazingly fast Work and infotainment unhindered by delays Amazing end-user experience provided by very high data-rates Virtual reality office Giga bit at application layer Dense urban information society Ubiquitous dense urban coverage Large and dynamic user crowds METIS Page 12

13 Scenario: Works in a crowd Great user experience even in extremely crowded situation Extreme traffic densities, dynamic in time and space Shopping mall, Stadium extreme user densities Open air festival little fixed infrastructure for temporary events METIS wireless@kth Page 13

14 Scenario: Best experience follows you Same experience at home, in the office or on the move Robust communication in remote areas, disaster areas and unforeseen local traffic demands Blind spots Accessibility in places with potential poor coverage METIS Page 14

15 Scenario: Super real-time and reliable connections Low E2E latency delay and reliable communication enabling critical machinetype applications Empowering industries to embrace new technologies in their processes Traffic efficiency and safety More efficient use of road infrastructure Reduce risk for traffic incidents METIS Page 15

16 Scenario: Ubiquitousthings communicating Very large number of small, simple, and inexpensive devices Requirement for long battery lifetime, scalability, and adaptability Inexpensive = small battery, simple device Massive deployment of sensors and actuators Handle a massive number of devices Very low cost devices with long battery lifetime Provide protocol scalability and coverage METIS wireless@kth Page 16

17 ROAD TO 5G Technical Components METIS Page 17

18 Problem to Solution Space Problem space: Scenarios from end-user perspective Solution Space: Horizontal topics and technology components METIS Concept Massive Machine Communication Ultra-reliable Communication Moving Networks Device-to-Device Communication Ultra-dense Networks Radio Link Concepts Multi-node/Multiantenna Tx Multi-RAT / Multilayer Networks Spectrum METIS wireless@kth Page 18

19 Massive MIMO: CSI Error Example of contribution: 30 Gbps simulation using 11 GHz band measured 24x24 MIMO channel Transmission scheme Signal bandwidth Subcarrier spacing Modulation scheme Channel coding 24x24 MIMO-OFDM eigenmode 400 MHz 195 khz AMC (QPSK, 16QAM, 64QAM) Turbo code, Coding rates of 1/2-3/4 Maximum bit rate 35.3 Gbps (64QAM, 3/4) Investigation points: Performance analysis of massive MIMO in higher frequency bands Clarification of requirements of CSI error and hardware impairments for high-performance massive MIMO 12-element array with dual polarization Measurement Environment/Data Omni-antenna (H) Antenna gain: 4 dbi Sector antenna 3 db beamwidth: H: 65 deg. V: 8 deg. Antenna gain: 15 dbi 12-element array with dual polarization * This METIS channel wireless@kth measurement was conducted Page 19 in Ishigaki City in partnership with Tokyo Inst. of Tech. in Japanese national project

20 Beyond Uplink & Downlink: twoway comm. Traditionally, the designs of the uplink and the downlink are decoupled The ideas related to wireless network coding suggest optimization of the two-way communication problem instead of decoupling BS FBS FBS FBS METIS Page 20

21 5G Architecture Amazingly Fast scenario high data rates high network capacities UDN ISD down to about 10 m outdoors 1>= radio nodes per room Local break out Accelerated content delivery Distributed mobile core functions MN Macro radio node* Small cell radio node*, e.g. micro, (ultra-)pico, femto Note: Indoor cells not shown! D2D / URC * Only Remote Radio Units (RRUs) assumed. C-RAN + Mobile Core Distributed Functions (incl. optional local breakout or CDN) Massive MIMO UDN CoMP Aggregation Network (local, regional, national) MMC C-RAN Centralized or distributed? Internet Mobile Co Centraliz Functions + OAM Wireless access Wireless fronthaul Wired fronthaul Wired backhaul Internet access METIS wireless@kth Page 21

22 5G Future Integration of access technologies into one seamless experience Massive MIMO Ultra-Dense Networks Moving Networks Higher Frequencies Revolution Evolution Respond to traffic explosion x higher typical user rate 1000 x higher mobile data volume per area Complementary new technologies Extend to novel applications 10 x longer battery life for low power M2M x higher number of connected devices 5 x reduced E2E latency D2D Communications Ultra-Reliable Communications Massive Machine Communications 3G Existing technologies in G Wifi METIS wireless@kth Page 22

23 Useful Links A. Osseiran et al, The foundation of the Mobile and Wireless Communications System for 2020 and beyond Challenges, Enablers and Technology Solutions, VTC Spring 2013, June 2-5, 2013, Deliverable D1.1, Scenarios, requirements and KPIs for 5G mobile and wireless system, June 2013, Deliverable D2.1, Requirements and general design principles for new air interface, Sept. 2013, Deliverable D3.1, Positioning of multi-node/multi-antenna transmission technologies, Aug. 2013, Deliverable D5.1, Intermediate description of the spectrum needs and usage principles, Sep. 2013, Deliverable D4.1, Summary on preliminary trade-off investigations and first set of potential network-level solutions, Nov. 2013, METIS Page 23