transforming the network for 5g (virtualised architecture...

Transforming the Network for 5G (Virtualised Architecture for 5G)

Dr Chris Simmonds World Summit, London, 2016

COMPANY PROPRIETARY & CONFIDENTIAL

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Agenda

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▸ What is 5G?

▸ What are the key drivers?

▸ What architectural changes are needed?

▸ 5G Summary 5G should be rolled out by 2020 to meet business and consumer

demands.

COMPANY PROPRIETARY & CONFIDENTIAL 4

What is 5G?

3D Video, UHD Screens, Virtual Presence

Work & Play in the Cloud

Augmented Reality

4k Video Self Driving Car

Industry Automation

Ultra-Reliable, Low Latency & Mission Critical Communications

Gigabytes in a second

Smart Home/Building

Smart City

Safety & Security

Network


5G Service Requirements

Source: RWS-150007, 5G Vision and Priorities, 5G Infrastructure Public-Private Partnership Sept 2015

These Key Requirements are not expected to be met all at the same time

≥ 50Mbs guaranteed user data rate.

10Gbps

Terminals capable of IoT

≥ 1 TRILLION

Capable of human-oriented terminals

≥ 20 BILLION

Energy Efficiency - 10% of current consumption

10%

Realaibility

99.999%

End to end latency

< 5MS LATENCY


Solution Paradigm

Spectral Efficiency – QAM, mMIMO

Bandwidth Expansion - cm & mm

Densification – Connections/km2

SDN and NFV – Flexibility, Agility

New Devices & Use Cases

Cost Sensitivity - COTS $

Architecture for 5G


Aggregated Processing for Various Scenarios

Network Slicing Based on: • Carrier type - LTE, NB-

IoT, 5G • Multiple virtual RANs • Multiple services

Central Office Aggregation

Regional Aggregation

National Aggregation


V2X Scenario


Vehicle to the “X”

• Cognitive Vehicles

• Driverless

• Safety/Radar

• Vehicle to Anything




MEC Scenario

Application Intelligence • Location Services • Augmented Reality • Optimized Local Content

Distribution • Data Caching




MEC APP


IoT Scenario

IoT

• Remote Metering

• Automation

• Mechanical & Digital Machines

connecting animals, people,

human to computer interaction




Data Transport and Architecture Split


5G Radio Architecture

Conventional 4G – Passive Antennas 5G – Multi Element Active Antennas

Ethernet Cloud

IRRH

IRRH IRRH

Ethernet Cloud

mMIMO

vBBU

3D - MIMO

vBBU


What is Practical for 5G NR DL rate for 150Mbps (2layer/2Tx) LTE DL rate for 8Gbps (8layer/64Tx) NR ex.

~ if split is not changed ~

S1/BB Rate

150Mbps

CPRI Rate

2.4Gbps

BH/BB Rate

8Gbps

FH Rate ~520Gbps

Quantized I/Q Samples of OFDM Waveforms

PDCP RLC

MAC PHY

RF RF

PDCP RLC

MAC PHY

EPC

LTE CU

LTE DU

CN

NR CU

NR DU


CPRI

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CPRI Based Fronthaul

FH Rate ~520Gbps

PDCP RLC

MAC PHY

BH/BB Rate

8Gbps

Tight Delay Requirement

CN

5G CU 5G DU

CPRI Based Architecture

RF


Alternative Split – Option One

PHY RF

Low Delay Required for Tight Interaction

Ethernet

FH Rate ~8Gbps

Lower Layer Split (for low delay FH: e.g. P2P Links)

Centralized MAC Scheduler

PDCP RLC

MAC

5G DU 5G CU

BH/BB Rate

8Gbps


Alternative Split – Option Two

RLC MAC

Relaxed Delay Requirement

PDCP

Higher Split (higher delay FH e.g. Switched NW)

5G CU

BH/BB Rate

8Gbps

Ethernet

FH Rate ~8Gbps

PHY RF

5G DU


eMBB Deployment Scenario

Campus & Apartment

Stadium Urban &

Suburban

Rural & Highway

vBBU

Ethernet 10’s of ms Sector throughput

Microwave


Intelligent LTE with Ethernet Cloud

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▸ Will Usher in Network Transformation and new RAT

▸ The Network will Become Software Centric

▸ New use Cases & Call Models will have to be Supported

▸ New RAT & Co-existence with LTE is a Natural Evolution

▸ Already Built NFV and SDN Based Software Platform

▸ Designed to Scale for Any Use Case and any call model

5G network

Thank You


FDD + TDD

Dual Connectivity

F2

F1

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Bandwidth Expansion

• Supported in 2016

• Inter-site CA

• Ready for Dual Connectivity

• Working on UE availability

• LAA, LWA in 2017

• Supported in 2017

• Working on radio solution

cmWave & mmWave

Intra-band CA

Intra-band CA

Unlicensed Bands

Shared Access


F2

F1

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Densification

• Micro, pico ready to deploy

• vRAN designed for high level of aggregation

• Patented CRE technology for maximum load balancing

• FeICIC supported in 2017

• vRAN architecture defined or ultra dense deployment

Pico

Relay Femto

CRE

FelCIC

Ultra Dense Network

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