5g systems meeting the expectations of the … systems meeting the expectations of the networked...

5G systems meeting the expectations of the Networked Society 2020

Dr Magnus Frodigh Director Wireless Access Networks

3G

4G

New technologies

Wi-Fi

5G

GSM

Commercial in confidence | 2014-01-23 |

Ericsson Research

› Technology leadership – the main driver of GSM, HSPA,

LTE, LTE-A and 5G

› Innovation – 50 % of Ericsson patent filings – a major creator of conference papers, journal

articles and books

› Cooperation – leading universities, research organizations

and operators

› Strength – a global organization spanning 3 continents – 40 % holding a Ph.D. degree

In the networked society people, knowledge, devices, and information are networked for the growth of society, life and business.


Mobile Data TRAFFIC

2013 the monthly mobile data traffic volume was

exabytes ≈2

By 2019 the monthly mobile data traffic volume will increase to

exabytes ≈20

1 exabyte = 1018 bytes


Smartphones

2013 the number of smartphones was

billion 1.9

By 2019 the number of smartphones will increase to

billion 5.6


Mobile Subscriptions by technology 2010-2019 [Billions]

Source: Ericsson (November 2013) M2M subscriptions not included


THE Networked Society

Network Cloud

Services Devices

From an operator-centric to an user-driven landscape

Redefining the network & connected devices

The network drives new value in

connected devices


5G system

Network Infrastructure

Data Center Relay Device

DU

Antenna

Antenna

RU

RU

Cloud Execution Environment

NF NF NF

Device Device

Infra-structure layer


Affordable and sustainable

Massive growth in

Connected Devices Massive growth in

Traffic Volume

>1000x

Wide range of Requirements & Characteristics

speed latency

Key Challenges


Diversified wireless accesses

300 MHz 3 GHz 30 GHz 300 GHz

Licensed

Controlled sharing

Unlicensed

Spectrum toolbox


› Provide extreme capacity and multi-Gbps – bandwidths >500 MHz, frequency >20 GHz – ~1 AP per room indoor, ~10-50 m ISD outdoor

› Higher frequencies enable/require beamforming

– increase link budget, constrain interference › Low-cost, self-configuring access nodes

– access-backhaul integration › Seamless integration with wide area network

at lower frequencies – robustness, UDN as “data booster” layer

Ultra-Dense Networks


Connected Devices

› Sensor, actuators, meters,

connected devices and things

› Small, simple, low-cost › Low energy consumption › Long-range coverage

› Connecting vehicles,

transport infrastructure and transport management

› Incl. safety-related services

› Low delay › High mobility

› Distributed embedded

control & cyber-physical systems

› High reliability and availability

› Low delay › Autonomous operation

Critical Communication Meters and Sensors Intelligent Transport Systems


LTE for meters & sensors ?

› Are LTE devices simple? – high requirements on M2M device

› Are LTE devices well reachable? – MTC devices may have unfavorable attenuation (basements, metal enclosures) – stationary MTC devices affected in particular

› Does LTE enable M2M devices to operate on battery for multiple years? – not really

referring to LTE Release 8 with regard to the defined M2M requirements


Addressing Limitations

Reducing cost by up to 80%, eg by – one receive antenna – data rates limited to 1 Mb/s – using 1.4 MHz BW only Further enhancements – half-duplex FDD – reduced RF bandwidth

Options for low-rate MTC devices – repetition with energy accumulation – power/PSD boosting – relaxed performance requirements – simplification/elimination of physical

control channel functionality or design of new channels/signals

COST COVERAGE


active

time

Transmit

Receive

inactive active

data signaling paging / measurements DRX / paging cycle

pow

er c

onsu

mpt

ion

DRX active times dominate UE energy consumption

What consumes energy?


Capillary Networks

App Node

Capillary Network Function

Capillary Network EPS Network Internet

Capillary GWs

Connected Devices

› The majority of device connections predicted as short-range, non-3GPP – e.g. Bluetooth Low Energy, IEEE 802.15.4 – but can only provide local connectivity at the edge

› Provide connectivity, security solutions and network management

Connectivity, QoS, Security, Network Management


Machine Type Communications

Traffic safety/control

Industrial application

“Tactile Internet”

Short TTI Robust transmission Fast channel assignment Multi-path

Sensors, meters, actuators

Ultra-long range Low protocol overhead Scalable Access Spectrum sharing with LTE (< 2GHz) Capillary Networks & short-range radio

Capillary networks

TEXT

Simple & cheap Low energy Small data volumes Massive numbers

~1ms e2e latency Ultra reliable

Highly available MTC


LTE – Major Evolution Trends

Spectrum Flexibility Carrier Aggregation, New Frequency Bands …

Multi-antenna techniques MIMO, CoMP …

New scenarios Device-to-Device Communication, MTC, Broadcast …

Densification Local-area access, Heterogeneous deployments …

Device Enhancements Receiver improvements,…

Multi-RAT coordination WiFi interworking, inter-RAT RRM …

LTE Rel-8/9

Rel-11

Rel-12

Rel-10


5G Wireless access

2000 2010 2020 1990

3G

4G

New wireless technologies

Wi-Fi

5G

GSM 5G =

evolution of existing standards

+

complementary new technologies


› Lots of talk about 5G – Vendors – Operators – Governments – Academia/universities

– Ericsson leading the EU funded METIS

project with 29 partners – The project purpose is to make

technology research, align industry and regulatory bodies

5G around the world


› Future internet / networking principles /services /security › Software defined networking /cloud /distributed computing/short delay › Management /Management of complex systems › Multiple RAT integration › Spectrum management / ways to utilize shared spectrum › Energy efficiency › Connected devices / Machine type communication / IoT › Advanced Antenna systems / beamforming / beamtracking › Understanding of propagation properties for higher frequencies › Radio frontends for higher frequencies

Research Challenges


› LTE Evolution will address capacity and performance demands for the coming years

› 5G is needed to fulfil the diverse requirements from the Networked Society

› Vast opportunities for 5G research

Summary

5g systems meeting the expectations of the … systems meeting the expectations of the networked...

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