Fixed Mobile Convergencefor the Internet Age

Max RiegelNokia Siemens NetworksCo-chair WiMAX NWG

BBF, Stockholm, Sep 8th, 2008

Outline

● WiMAX● Vision and mission● WiMAX Forum membership● WiMAX and IEEE802.16● Target market for WiMAX

● Fixed Mobile Convergence● New meaning due to the Internet● WiMAX Deployment Evolution● The WiMAX Architecture fits to the Internet

● FMC hands-on: Interworking between WiMAX and DSL● Issue#1: Orientation of Reference Architecture● Issue#2: The Network Planes of Mobile WiMAX● Issue#3: L2 or L3?

● Conclusion

WiMAX: Worldwide Interoperability for Microwave Access

“Global adoption of WIMAX as the broadband wireless Internet technology of choice anytime, anywhere”● Deliver a trusted certification process● Develop a specification for a high performance end-to-end

IP network architecture supporting stationary, portable, and mobile users

● Evangelize business model, including favorable IPR policy ● Foster a thriving ecosystem● Promote and accelerate WiMAX deployments to achieve

global wireless broadband market leadership

WiMAX Board

MarketingMWG

NetworkNWG

TechnicalTWG

CertificationCWG

RegulatoryRWG

GlobalRoamingGRWG

ApplicationAWG

ServiceProviderSPWG

The WiMAX Forum MembershipContinues to Grow!

520 WiMAX Forum Member Companies520 WiMAX Forum Member Companies139 Ecosystem/Applications/Content

Spring 2004Spring 2004

4646

End 2007End 2007

520520164 Service Providers

88 Silicon/Component Suppliers

129 System Vendors

WiMAX and IEEE 802.16● WiMAX is a subset of IEEE 802.16

● Mobile WiMAX attributes:● High tolerance to multipath and self-interference● Scalable channel bandwidth● Support for MIMO and smart antenna systems● Superior Quality of Service (QoS)● Mobility management● Multicast and Broadcast Service

IEEE 802.16 World

Mobile WiMAX ‘S-OFDMA’

Fixed WiMAX ‘OFDM-256’

WiBro

‘WiMAX’

mobile

fixed

“Integrated Services Digital Network”

‘WiMAX’ is addressing a new segment in the telecommunication market

● End-to-end QoS● Hard real-time (voice)

Defined traffic classes● End-to-end service delivery

● Voice, SMS, Gaming, Infotainment● Precise accounting, charging

and billing

POTS, ISDN(B-ISDN, ATM)

GSM, UMTS(HSPA, LTE)

xDSL, Cable

● Best effort, DIFFSERV enabled● Interactive (http, mail)

Streaming, downloads● Access to the plain Internet

● Common web applications, email● Usage classes, flat-rate

“Digital Subscriber Line”

Wi-FiDECT Legacy FMC Internet Age FMC

FMC: new meaning by the Internet

● ‘legacy’ FMC:Access to the same telecommunication services over fixed and mobile networks● E.g. telephony, SMS, MMS

● Services in the Internet are by nature accessible over fixed as well as mobile networks

● Are we done with FMC?● Probably not. But FMC is getting a new meaning. FMC

is allowing telecommunication service providers to provide fixed and mobile Internet access by the same core network infrastructure.

WiMAX deployment evolution

● Today’s broadband providers are tied to their wires● serving consumers and enterprises inside their reach

● A WiMAX access network allows to extend the DSL business servingcustomers without appropriate wires, and additionally also...● addressing customers looking for a more easy-to-use solution,

● providing portable and mobile access

All together may generate a more attractive business case!

The WiMAX Architecture fits to the Internet,… and to DSL networks too.

NAP

NSP

ASP MNO ‘A’

Internet

Subscriber

RAN

Core

ServicesMNO ‘B’

Subscriber

RAN

Core

Services

Subscriber Subscriber

Legacy Architecture Mobile WiMAX Network Architecture

Subscriber

R1

R3

R4

R5

R2

CSN CSN CSN

ASN ASN ASN

Interworking between WiMAX and DSL NetworkIssue#1: Orientation of Reference Architecture

Mobile WiMAX Reference Architecture (User Network)

DSL Reference Architecture (Network User)

Regional BroadbandNetwork

Access Network

AccessNode

(DSLAM)

AccessLoop

MDFEthernetAggregationIP

BBNetworkGateway

L2TS

IP - QoS

L2TP

Customer Prem. Net

CPE

NSP1

ASP1

A10-ASP

A10-NSP

U

User1

User2T

NIDNSP2

A10-NSP

IP - QoS

A10-NSP

V

NSP/BB Network Gateway

Aggregation Network

MS

AAAproxy

HA

PFR1R3

CSN

R4

R2

InternetInternet

NAP vNSP

AAAPF

CSN

hNSP

R5

ASN

BS

ASNGW

R6

R6

BS

R8

ASN

BS

ASNGW

R6

R6

BS

R8

RegionalBroadband

Network

Access Network

AccessNode

DSLAMAccessLoop MDF

EthernetAggreg. IP

BBNetworkGateway

L2TSL2TP

Customer Prem. Net

NSP1

U

T

NIDA10NSP

QoS-IP

V

CPE NSP2

ASP1

A10NSP

A10ASP

QoS-IP

User1

User2

NSPBNGA10NSP

DSL Reference Architecture (User Network)

Control Plane

L3 User Plane

L2 User Plane

Transport Plane

Transport Plane

Transport Plane

Interworking between WiMAX and DSL NetworkIssue#2: The Network Planes of Mobile WiMAX

MS ASN

PHY PHYPHY PHY PHY PHY

CSNASN-GWBS

MAC MACLNK LNK LNK LNK

.16Ctrl .16CtrlIP IP IP IP

PHY PHYPHY PHY PHY PHY

MAC MACLNK LNK LNK LNK

IP-CS IP-CSIP IP IP IP

IP IPGRE

IPGRE

IPIPIP

ASNctrl ASNctrl CSNctrl CSNctrl

Control

IP User Plane

R1 R3

R6

PHY PHYPHY PHY

MAC MACLNK LNK

ETH-CS ETH-CSIP IP

GRE GREETHETH ETH ETH

Ethernet User Plane

PHY PHYLNK LNK

XXXETH

XXXETH

IP IP

XXXXXX

RegionalBroadband

Network

Access Network

AccessNode

DSLAMAccessLoop MDF

EthernetAggreg. IP

BBNetworkGateway

L2TS L2TP

Customer Prem. Net

NSP1

U

T

NIDA10NSP

QoS-IP

V

CPE NSP2

ASP1

A10NSP

A10ASP

QoS-IP

User3

User4

V-InterworkingWiMAX Network emulates DSL network

between T and V Interface

CPE

User1

User2

BS

BS

CSN

ASNASNGW

Mobile WiMAX Network

MS

T NSPBNGA10NSP

Interworking between WiMAX and DSL NetworkIssue#3: L2 or L3? – The L2 case

AAA

The WiMAX network appears like a Access Node to the DSL network

The WiMAX network provides the DSL network T interface to the user

RegionalBroadband

Network

Access Network

AccessNode

DSLAMAccessLoop MDF

EthernetAggreg. IP

BBNetworkGateway

L2TS L2TP

Customer Prem. Net

NSP1

U

T

NIDA10NSP

QoS-IP

V

CPE NSP2

ASP1A10ASP

QoS-IP

User3

User4

A10-InterworkingWiMAX Network provides single IP connectivity into the A10 interface

User1

User2

Mobile WiMAX Network

Interworking between WiMAX and DSL NetworkIssue#3: L2 or L3? – The L3 case

MS

PPPoETH case

IPoETH caseBS

BS

CSN

ASNASNGW

MS AAA

IWF

The WiMAX network appears like a BNG to the DSL network

Conclusion

● FMC in the Internet age addresses the interworking of fixed and mobile access networks.● The same core network for fixed as well as for mobile

access to the services in the Internet● Mobile WiMAX is the wireless access technology for

fixed, nomadic, portable and mobile access to Internet services.

● Mobile WiMAX is enabled to complement a wired broadband network infrastructure by a cellular wireless access technology.