enabling concepts for 5g - 5g-control-plane concepts for 5g ... 2g 1990 3g 4g 5g 2000 2010 2020...

Enabling Concepts for 5G 14th International Conference on Frontiers of Information Technology (FIT'16)

Kashif Mahmood

Next Generation Network Technology Group, Telenor Research, Norway

Highlights of what we do in Telenor Research

Provide LPWA infrastructure an drive

innovation and research in the fields of

big data analytics and AI.

Phase 1

Oslo

Tromsø,

Trondheim,

Phase 2

Stavangar

Gjøvik

Horten

What is 5G

2G

3G

4G

1990

2000

2010

Mobile Voice & SMS

Mobile Internet

Mobile broadband

5G is Integrating the verticals

2G

3G

4G

5G

1990

2000

2010

2020

Mobile Voice & SMS

Mobile Internet

Mobile broadband

Every “Vertical” Connected

5G needs to incorporate different characteristics and requirements of the

verticals

Telenor Research

Use-cases

5G empowering the verticals

*Source : 5GPPP white paper 2016


Use-cases


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Use-cases



Verticals have diverse requirements

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Conceive and develop technology enablers to design a network adaptable to verticals.

Telenor Research

(a) Current Mobile Network Architecture

Infrastructure

MME PCRF

DP

PGW CP

DP

SGW CP

DP

eNB CP Coupled

Control and Data Planes

Coupled hardware and Software

Current Mobile Network Architecture

Control Plane CP

DP Data plane

Enabling concepts

Network softwarization

Network slicing

Architectural modularization

…

Telenor Research

Enabling Concept: network softwarization

(a) Current Mobile Network Architecture

Infrastructure

MME PCRF

DP

PGW CP

DP

SGW CP

DP

eNB CP

Infrastructure

Data Plane

DP-NFa DP-NFa CP-NFa

DP-NFa DP-NFa CP-NFb

Control Plane

(b) Softwarized Mobile Network Architecture

Data Center

Data Center Data Center

Data Center

DP-NFb DP-NFb DP-NFc

DP-NFa DP-NFa DP-NFa

DP-NFa DP-NFa DP-NFb

DP-NFa DP-NFa CP-NFc

Network Softwarization propelled by NFV and SDN

Coupled Control and Data Planes Coupled

hardware & Software

NFV – Network Function Virtualization

SDN – Software Defined Networking

Network Function Virtualization (NFV) decouples network functions from

hardware so they can run in software

Function B

Function D Function E Function F

Classical Network Function approach

Function C Function A

NFV

Virtualization Layer

Commodity Hardware (compute, storage, network)

Function C Function A Function B

Function D Function E Function F


NFV: An Example

SBC

Router DPI CDN

Classical Network Function approach

IMS EPC

NFV



IMS EPC SBC

Router DPI CDN


Software Defined Networking (SDN) decouples the control and data

planes to enable logically centralized network control

Classical Network working SDN


Key Drivers for Network Virtualization using NFV and SDN

• Flexible and fast service delivery through automated deployment and operation of network and functions.

• Operational efficiency using common potentially centralized platform with network functions from multiple

vendors.

• Software-oriented innovation to rapidly prototype, test and introduce new services and generate new

revenue streams.

• Reduced CAPEX over time through opening of the ecosystem and COTS IT HW.

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NFV – Network Function Virtualization

SDN – Software Defined Networking

Edge Network

Core Network

Core NFV Cloud

S/P-GW

Control

S/P-GW

SDN

Controller

vCache

vS/P-GW

Control

vS/P-GW

Control

(MBB)

vS/P-GW

Control

(IoT)

Edge NFV Cloud

vCache

Internet/

Backbone

Cache SDN-

Switch

S/P-GW

Data

SDN

Switch

Use case 1: Network Virtualization enabled vEPC enables new Opportunities

local routing,

e.g. VoLTE

Multiple S/P-GW

control nodes

(e.g. IoT)

local breakout Enabling Concept: network softwarization



NFV Edge Cloud

Base Station Remote Radio

Head (RRH)

Layer 1

Layer 2

Layer 3

Base Station Remote Radio

Head (RRH)

Layer 1

Layer 2

Layer 3

C-RAN

B

C-RAN

A

e.g.

caching,

application

intelligence

Use case 2: Cloud-RAN can increase performance and cost efficiency


Use case 2 : Cloud-RAN can increase performance and cost efficiency

Be

nefi

ts a

nd

ch

alle

ng

es

Cell Site Edge NFV Cloud

RRH L1 L2

L3

RRH L1 L2 L3

L2NonRT

L3 RRH L1

L2RT

RRH L1

L2 L3

Benefits

• Spectral efficiency (SON, COMP)

• Resource utilization & energy consumption

• Management and operation - OPEX

• Faster time-to-market

• Enables edge computing and services

Challenges

• Fronthaul capacity and latency

• Performance of virtual resources (e.g. compute)


Test-bed setup – Field figure with 2 iRRH sites

Altiostar iRRH at Remote Location

Wireless Fronthaul for Ethernet connection

between site locations

iRRH at remote

location

Wireless fronthaul for

ethernet between site

locations

Altiostar iRRH at Telenor Site Location

Altiostar iRRH at Telenor Site LocationiRRH at

Telenor HQ

~600m


Enabling concepts


Network slicing


…

Telenor Research

Network Slicing to provide flexible services and infrastructure to verticals

A network slice is an independent logical network, made by the interconnection of a set of network functions and which can be

independently instantiated and operated over a set of physical or virtual infrastructure to support the communication service

requirements of a multiple use cases from the verticals.

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• eMBB Slice

• IoT Slice

• Automotive Slice

…

Enabling Concept: Network Slicing

Enabling concepts


Network slicing


…

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Modularization to build a flexible network architecture

Enabling Concept: Architecture Modularization

Modularization natively supports Network slicing

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IoT Network slice with no mobility and relaxed security requirements

5G control

Flow

Management

Access Function

Security and

AAA management

Mobility

Management

Connectivity

Management

Context Aware

Engine

Modularization natively supports Network slicing

Mobile Broadband Network slice

5G control

Flow

Management

Access Function

Security and

AAA management

Mobility

Management

Connectivity

Management

Context Aware

Engine


Architecture modularization is an agreed concept in 3GPP


Security in 5G

HaaS

Will security be the biggest show stopper in adaption towards

softwarized, sliced, modularized architecture ?

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Conclusion

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5G is integrating the verticals


Current architecture poses a lot of challenges

Conclusion

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Network softwarization propelled by NFV and SDN can enable dynamic network for flexible and fast service

delivery enabling software oriented innovation. • Virtualized EPC leveraging virtualization enables new opportunities

• Cloud-RAN can increase performance and cost efficiency

Conclusion

Telenor Research




Network softwarization propelled by NFV and SDN can enable dynamic network for flexible and fast service

delivery enabling software oriented innovation. • Virtualized EPC leveraging virtualization enables new opportunities

• Cloud-RAN can increase performance and cost efficiency

Network slicing and modularization will enable network as-a-service paradigm for multiple verticals (e.g. MBB,

IoT, V2V)

Security is of paramount importance

[email protected]

Research Scientist, Telenor Research, Norway

enabling concepts for 5g - 5g-control-plane concepts for 5g ... 2g 1990 3g 4g 5g 2000 2010 2020...

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