5G an OperatOr’s view On the clOud Optimized netwOrk Johannesberg Summit 2015 Franz Seiser, Deutsche Telekom AG

5G FOundatiOn: the sOFtware deFined OperatOr

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IP network BNG / TeraStream

SDN Realtime Network & Service Management

Infrastructure Cloud NFV

5G

5G: (r)evOlutiOn by (r)evOlutiOn

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5G

busi

ness

technology

evolution

revolution / disruption

evolve existing enable new

FOcus OF 5G: new business

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Broadband access everywhere

Broadband access in dense areas

Higher user mobility

Massive Internet of Things

Extreme real-time communications

Lifeline communications

Ultra-reliable communications

Broadcast-like services

TACTILE INTERNET

NATURAL DISASTER

E-HEALTH SERVICES

BROADCAST SERVICES

50+ MBPS EVERYWHERE

PERVASIVE VIDEO

HIGH SPEED TRAIN

SENSOR NETWORKS

50One size fits all Customization and flexibility

evOlved smart phOne use case remains key

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Improve customer experience speed / latency rural / dense areas reliability

Family of radio interfaces, incl. LTE-A as basic coverage layer

Modular, SW defined Base Station

Adding new radio interfaces during 5G life time

evOlutiOn On the access side Not aNother radio iNterface iN the first place!

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Network densification is key for capacity Split of control plane / user plane

Franz Seiser, DTAG

revOlutiOn On the cOre netwOrk side a completely New core is eNvisaged! New, state of the art, “greenfield” Core Network

Modular, SW based functions (mobility, authentication, security, routing, …)

Use case dependent variants per function

Access agnostic core

Enable “plain IP” in the user plane

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Use case specific network slice

interwOrkinG OF diFFerent mObile GeneratiOns No backward compatibility for 5g core!

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2G/3G/4G Core

2G/3G/4G UE 2G/3G/4G

UE

LTE

UMTS/ HSxPA GSM

5G UE

5G Core

basic interworking only

5G UE

5G

UE interworking

/ LTE‘

* LTE‘ is a DT term denoting an evolved LTE-A supporting both legacy as 5G core functions

variety OF use cases and requirements cO-existence OF virtual 5G „netwOrk slices“

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HW HW Network infrastructure Critical &

Safety - Lifeline

Health & Assisted Living,

Smart Industries/Cities

& Remote Operation

(Extreme) Real-Time (Video)

Communication, Vehicle-to-

Vehicle

Smarter Connected

Society (50 Mbps

everywhere; Tactile Internet)

Massive Internet of

Things

Virtualized Legacy

identities are a key enabler FOr inteGratiOn OF Fixed and mObile

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Licensed access

Unlicensed access

user identity

no identity

network identity

the nGmn 5G architecture

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thank yOu!