www.metis2020.com
Radio Access and Spectrum innovations for 5G
17th March 2014
Athens
Toward a 5G Mobile & Wireless
System Concept
Prof. Nancy Alonistioti, NKUA
On Behalf Dr. Afif Osseiran
METIS Project Coordinator
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Content
› Introduction
› 5G Challenges & Scenarios
› Toward a 5G System Concept
Introduction
› METIS
(Nov. 2012)
– The first stage of the 5G EU “missile”
– Contributed to the IMT.VISION Doc.
 Lay the foundation for
 Build an early global consensus for
5G mobile & wireless
communications
› Several global initiatives started in 2013
– China, Japan & Korea
– An incredible amount of Workshops & Events
Introduction
› METIS
(Nov. 2012)
– The first stage of the 5G EU “missile”
– Contributed to the IMT.VISION Doc.
 Lay the foundation for
 Build an early global consensus for
Prestandardization
activities
Exploratory
research
2012
WRC’12
2013
2014
2015
WRC’15
2016
5G mobile & wireless
communications
Standardization
activities
2017
2018
2019
WRC’18/19
Commercialization
2020
5G Challenges & Scenarios
5G Challenges
Avalanche of
Massive growth in
Large diversity of
Traffic Volume
Connected
Devices
Use cases
&
Requirements
Further expansion of
mobile broadband
“Communicating machines”
Device-to-Device
Communications
Additional traffic due to
communicating machines
“1000x in ten years”
Car-to-Car Comm.
“50 billion devices in 2020”
New requirements and
characteristics due to
communicating machines
METIS 5G Scenarios
Amazingly
fast
bit-rate,
delay
Best
Great Service
experience
in a crowd
follows you
Accessibility,
dense crowds
Accessibility,
mobility
Super real-time
and reliable
connections
delay,
reliability
Ubiquitous things
communicating
simple devices,
coverage
METIS Technical Objectives
1000x data
volume
1000x
higher mobile
data volumes
50/500 B
devices
Up to
10Gbps
10-100x
10-100x
higher number of typical end-user
connected devices
data rates
Few ms E2E
10 years
5x
10x
lower latency
longer battery life
for low-power devices
5G Future
Integration
of access technologies
into one seamless experience
Evolution
Complementary
new technologies
Revolution

Massive MIMO

Ultra-Dense
Networks



Respond to traffic explosion Extend to novel applications
Moving Networks
10 -100 x higher typical user rate
10 -100 x higher number of
connected devices
1000 x higher mobile data
volume per area
Higher Frequencies
10 x longer battery life
for low power M2M
5 x reduced E2E latency
Existing technologies in 2012
3G
4G
Wifi
D2D
Communications

Ultra-Reliable
Communications

Massive Machine
Communications
METIS 5G Requirements
Data rates
1-10Gbps (resp.100s of Mbps)
Capacity
36TB/month/user (resp. 500 GB)
Spectrum
Higher frequencies & flexibility
Energy
~10% of today’s consumption
Latency reduction
D2D capabilities
~ 1ms (e.g. tactile internet)
NSPS, ITS, resilience, …
Reliability
99.999% within time budget
Coverage
>20 dB of LTE (e.g. sensors)
Battery
Devices per area
Ultra-dense
networks
~10 years
300.000 per access node
Ultra Reliable
Comm.
Massive
Machines
Spectrum Scenario: Future Landscape
› Dedicated licensed spectrum complemented with
various forms of shared spectrum
“Toolbox” of different sharing enablers required
In order for 5G system to work under such scenarios
Toward 5G Concept:
Technology Components
Examples
Some 5G Technology Components
300 MHz
3 GHz
30 GHz
300 GHz
New spectrum bands and access methods
Nomadic nodes
Buildings
Bus stop
Park
area
Lamp posts
nodes
Dense and moving networks
Multi-hop wireless backhaul
Context-aware
interference and mobility
management
VL-MIMO
Massive multi-antenna systems
Air interfaces for new
applications and
reduced signaling
Mobile
Device-to-device
METIS 5G Concept
› A user-centric 5G system concept that efficiently
integrates:
– the support of MMC and URC,
– the support of scalable data rates including very high data
rates,
– the support of scalable data rates including very low
latencies,
› for service provision to both consumers and
devices/machines.
› The system that fulfils these requirements be flexible
to provide different services at different times.
– The system architecture must provide native support for
extreme Mobile Broadband (MBB) communication, MMC,
URC, D2D, MN, and UDN.
5G Concept: development
Best
effort
D2D
Critical
Direct
Air
Interface
#1
M2M
Air
Interface
#2
Backhaul
1000x
traffic
MMC
Gateway
100x
rate
100x
devices
Backhaul
to moving
MN
V2X
Nomadic
nodes
10x
battery
Backhaul
UDN
Air
interface
5x lower
latency
SON
URC-S
URC
URC-L
Base
Layer
Architecture
URC-E
Goals
Air
Interface
#N
METIS Concept
Useful Links
› A. Osseiran et al, Scenarios for the 5G Mobile and Wireless Communications:
the Vision of the METIS Project, IEEE Comm. Mag., May, 2014 --To appear
on https://www.metis2020.com/documents/publications/
› Deliverable D1.1, “Scenarios, requirements and KPIs for 5G mobile and
wireless system”, June 2013
› Deliverable D2.1, “Requirement analysis and design approaches for 5G 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
› Deliverable D6.1,“Simulation guidelines”, Nov. 2013
All deliverables can be downloaded from
https://www.metis2020.com/documents/deliverables/
Thank You
Back up Slides
METIS 5G Architecture
Amazingly Fast scenario
Local break out & Distributed mobile core
functions
Accelerated content delivery
Tech. Dependent
high data rates & network capacities
Ultra-Dense Networks (UDN)
ISD about 10 m
>= 1 radio nodes per room
D2D, MMC (Massive Machine Comm.), Moving
Networks (MN), UDN Ultra-reliable Comm. (URC)
C-RAN +
Mobile Core – Distributed Functions
(incl. optional local breakout or CDN)
C-RAN
D2D / URC
CoMP
MMC
Massive
MIMO
Internet
MN
UDN
Macro radio node*
Small cell radio node*, e.g.
micro, (ultra-)pico, femto
Note: Indoor cells not shown!
* Only Remote Radio Units (RRUs) assumed.
…
Aggregation Network (local, regional, national)
Centralized
or
distributed?
Mobile Core
– Centralized
Functions
+ OAM
Wireless access
Wireless fronthaul
Wired fronthaul
Wired backhaul
Internet access
Massive MIMO: CSI Error
Example of contribution:
30 Gbps simulation using 11 GHz band
measured 24x24 MIMO channel
Transmission scheme
24x24 MIMO-OFDM eigenmode
Signal bandwidth
400 MHz
Subcarrier spacing
195 kHz
Maximum bit rate
35.3 Gbps (64QAM, 3/4)
Investigation points:
› Performance analysis of massive
MIMO in higher frequency bands
› Impact of CSI error and hardware
impairments
Measurement Environment/Data
12-element array
with dual polarization
Sector antenna
3 dB beamwidth.
Antenna gain: 15 dBi
* This channel measurement was conducted in Ishigaki City
in partnership with Tokyo Inst. of Tech. in Japanese national project
Omni-antenna (H)
Antenna gain: 4 dBi
12-element array
with dual polarization
Beyond Uplink & Downlink: two-way
comm.
› Traditionally, the
design of the UL and
the DL is decoupled
› Wireless network
coding allows
optimization of the
two-way
communication
instead of
decoupling
FBS
FBS
BS
FBS
HT: Device-to-Device (D2D) Communication
› Description: Controlled by the
network, direct D2D communication
allows direct communication between
mobile devices and exchange data
packets between devices locally
› Objective: Integrate direct D2D
operation modes as a part of the
overall METIS systems
› Motivation
– End user benefits: Reduced
power consumption; Increased
throughput; Discovery of
geographically close activities;
– Operator benefits: Increased
spectrum efficiency; Extended
coverage; Growing number of
devices to be connected in the
future; Internet of Things
Push shopping offer to
users with D2D (general
or personalized)