technology evolution: from 4g to 5g · technology evolution: from 4g to 5g adrian scrase, etsi cto....

Technology Evolution: from 4G to 5G

Adrian Scrase, ETSI CTO

erved India-EU Collaboration on Standardisation for Select Technologies, Delhi, 5 November 2015

The Mobile Ecosystem: Who does What?

© ETSI 2015. All rights reserved

Developing internet protocol specs

ITU-R/T Developing Mobile application

specs

Referring to 3GPP specs (contributed by individual

members)

Partners of 3GPP Referring to 3GPP specs

for the local specs

Referring to specs

Cross reference

Developing Wireless LAN/MAN specs

Requirements

Input specs

Japan EU Korea China North America

Market Partners

Developing Recommendations

Terminal Certification

Terminal certification based on 3GPP specs

Cross reference of specs

India

new

http://www.openmobilealliance.org/

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http://www.ieee.org/portal/site/iportals?WT.mc_id=ft_home

Latest Radio Enhancements


Enhancements to the LTE Carrier Aggregation signaling framework • Allowing up to 32 Component Carriers, providing a major leap in the achievable

data rates of LTE as well as in its flexibility to aggregate large numbers of carriers in different bands

Elevation Beamforming / Full-Dimension MIMO • Project studying how two-dimensional antenna arrays can further improve the

LTE spectral efficiency by also exploiting the vertical dimension for beamforming and MIMO operations

• So far 3GPP evaluations of these features mostly considered antenna arrays that exploit the azimuth dimension

• Study will look into high-order MIMO systems with up to 64 antenna ports at the eNodeB

• To become more relevant with the use of higher frequencies in the future

Customisation for the “Internet of Things”


Further LTE enhancements for Machine Type Communications • Building on the work that started in Rel-12

• New UE Category (Cat 0), New power saving state

• 1.4MHz narrowband operation,

• Multiplexing with broadband operation in wider channel bandwidths

• Enhanced coverage (15dB better link budget over existing LTE)

• Simplified PHY/MAC

• Further power optimization (focusing on MT-data)

Evaluation of a brand new radio optimized for the low end of the IoT market • Focus on very low data rates (~100s bps) applications with limited mobility support

• 200 KHz narrowband operation, allowing smooth reframing of GERAN channels

• Long range (20dB better link budget over existing GPRS)

• Very low cost & power consumption

Enabling Device to Device Communications

Enhancements to the D2D framework (ProSe) standardized in Rel-12 to support more advanced proximity services for Public Safety (PS) and consumer use cases • Discovery

• Restricted Discovery (social-type model)

• Multicarrier operation, concurrent inter-band D2D and CA combinations

• Group Communication (PS only) • UE-to-Network relays

Work to address the additional requirements being identified as necessary by the 3GPP System groups for Mission Critical Push-To-Talk (MCPTT)

Evaluation to expand the D2D framework for Vehicle-to-Vehicle (V2V) applications


Other Developments

Indoor positioning • Study on improvements to the existing methods or new positioning

methods to achieve improved indoor positioning accuracy

Low latency LTE • Study of techniques that can significantly reduce the latency of the

LTE air interface, including solutions for fast uplink access, shortening of the Time-Transmission Interval (TTI) and reduced processing time

• The goal is to improve performance and user experience of existing services as well as to enable new delay critical services

• Note: normative work (if any) for this item is targeted for Rel-14


Some Certainties about the Future


There will be a 5th Generation (we just need to decide what, when and how!)

Traffic will continue to increase dramatically over time (est. 1000x by 2020)

Connected devices will increase dramatically over time (10-100x by 2020)

New device types will significantly contribute to that increase (e.g., probes, sensors, meters, machines etc)

New sectors will bring new priorities (e.g, critical infrastructures)

Broadband communications will continue to stimulate the economy (e.g., by contributing significantly to GDP, creating employment, etc)

Some Game Changers for the Future


A number of new activities have started in ETSI which will form building blocks for 5G mobile. For example:

• Network Functions Virtualisation

• Mobile Edge Computing

• Millimetre Wave Transmission

Virtualisation


Network Virtualisation Approach

Standard High Volume Whitebox HW (e.g Ethernet Switches)

Standard High Volume Storage

Standard High Volume Servers

BRAS

Firewall DPI

CDN

Tester/QoE monitor

WAN Acceleration

Message Router

Radio Network Controller

Carrier Grade NAT

Session Border Controller

PE Router SGSN/GGSN

• Fragmented non-commodity hardware. • Physical install per appliance per site. • Hardware development large barrier to entry for new

vendors, constraining innovation & competition.

Classical Network Appliance Approach Virtualized

Network Function

Virtualized Network Function




Inde

pend

ent S

oftw

are

Vend

ors

cf: ETSI ISG NFV

Mobile Edge Computing


This environment is characterized by: Proximity

Ultra-low latency

High bandwidth

Real-time access to radio network information

Location awareness Can be leveraged by applications to create value

Offers application developers and

content providers cloud-

computing capabilities and an

IT service environment at the

edge of the mobile network

cf: ETSI ISG MEC

Millimetre Wave Transmission


Millimeter range radio (V-band (57-66 GHz), E-band (71-76 & 81-86 GHz) & from 50 up to 300 GHz) is ideal for large volume applications in back-hauling and front-hauling to support mobile network implementation, wireless local loop and any other service benefitting from high speed wireless transmission

cf: ETSI ISG mWT

Evolution or Revolution?

Technology and Spectrum Choices • There is a generic technology choice to be made:

• Embark on a linear evolution of today’s networks , or

• Adopt a new approach, or

• A combination of the above

• Traditionally, the 3GPP approach is evolutionary (including backwards compatibility). A pure evolutionary approach may not be sufficient for 5G

• Obtaining new Spectrum for mobile services is essential, but not the whole solution

• More efficient use of spectrum must be ensured (incl. licensed, unlicensed and shared access regimes)

• Opportunities to deliver broadcast content to mobile users (and vice versa) by exploiting synergies


Next Generation Radio

One key aspect of the 5G discussion will be the definition of next generation radio technology

First discussions in 3GPP workshop, Phoenix (US), 17-18 September 2015

A new study to define the exact scope and requirements of next generation radio technology will commence in December 2015

These requirements will then guide the technical work in 3GPP from March 2016

Results of significant research activities will influence the selection of radio technologies


Service and System Aspects

Next generation 3GPP platform needs to enable a broad range of new services and connectivity paradigms

3GPP has started an effort to articulate the service and connectivity vision for 5G by defining the service requirements of next generation platform

3GPP may then need to design a new system architecture for 5G based on two potential streams of requirements • Radio requirements

• Service/system requirements

A 3GPP workshop on system architecture aspects it is anticipated for H2 2016


The 5G Timeline


3GPP will complete initial 5G specifications by December 2019

IMT-2020 specifications

Evaluation

5D#23Feb 16

5D#26Feb 17

5D#27Jun 17

Requirements

Evaluation criteria

Initial submissions of proposals

5D#28Oct 17

5D#32Jun 19

5D#31Oct 18

5D#34Feb 20

5D#36Oct 20

RAN#70Dec 15

channel modeling

RAN#69Sep 15

RAN#72Jun 16

RAN#86Jun 20

RAN SI: scope & requirements

HSPA/LTE evolution

IMT

2020

RAN WG SI: evaluation of solutions RAN WG WI: specification of solutions

Fina

l 3GP

P su

bmiss

ion

Initi

al 3

GPP

su

bmiss

ion

IMT 2020

requirements

RAN#71 Mar 16

Rel-13 freeze

RAN Workshop

3G

PP

requ

irem

ents

SA system work

RAN-SA Workshop

SA1 SMARTER SI SA1 SMARTER WI

Conclusions


LTE will continue to evolve for many years

The User Experience will continue to evolve too

Technology building blocks being developed in ETSI which will form part of next generation system

The timeline for 5G development is now clear

More efficient use will need to be made of existing spectrum allocations

New spectrum will need to be assigned if 5G expectations are to be fully achieved

Contact Details:

[email protected]

Thank you!


technology evolution: from 4g to 5g · technology evolution: from 4g to 5g adrian scrase, etsi cto....

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