20070926 13-40 architecture for mobile backhaul - final

8/6/2019 20070926 13-40 Architecture for Mobile Backhaul - Final

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Carrier Ethernet for

Mobile Operators

Overview of MEF Work for

the Mobile Industry


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Peter CroyMEF Mobile Backhaul Marketing

Sr. Consultant,HarrisStratex Networks, [email protected]

Ran AvitalMEF Market Research Co-ChairDirector of Strategic and Product MarketingCeragon Networks

[email protected]


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Market Overview

Trends and Figures


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Towards Carrier Ethernet RAN Backhaul

Central Office

EthernetSwitch

Ethernet

Ethernet Backhaul

Cellular Base Station

Decouple thecapacity growthfrom the OPEXand CAPEX in the

transport networkHeavy reading, May 2007

Carrier Ethernet Services emerge as the natural choice.


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Ethernet Mobile Backhaul is Forecast to Soar

Mobile operators shell out $19.5Bin mobile backhaul service charges in2006

Infonetics Research, April 2007

The cost per mobile backhaulconnection for leased lines PDH andATM overPDH is about two and a halftimes that of new wirelineconnections (Ethernet, DSL, cable,PON), now and in 2010

Ethernet makes up just 1% of totalmobile backhaul equipment revenuein 2006, but is forecast to soar to $2.5billion by 2010, at which time it willrepresent 41% of the market

The MEF Work


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Mobile Backhaul Network Market

Qualitative estimates for markets US: ca. 90% leased lines

Middle East & Africa: ca. 90% microwave radio links

Europe: ca. 60% microwave radio links

World: 50% to 60% microwave radio links

Carrier Ethernet implementation divided roughly equal between

Copper/Fiber and Wireless media

Projected growth focus of mobile access networks

US & Europe: Increase in bandwidth only to existing sites

Emerging markets: Build-out of new access and backhaul networks

Carrier Ethernet plays an important role in network growth planning

MEF work for mobile industry is relevant and timely


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Backhaul Evolution

Migration to Carrier Ethernet


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Cost and revenue decoupling

Define Ethernet services

Multiple technologies GSM,

WCDMA, CDMA2000, and

WiMAX 802.16e

Base stations collocation

Leverage install base

Business Challenges Increase Bandwidth

Increase Reliability

Adapt to multiple underlying

available media: Fiber, Copper

and Microwave

Adapt to multiple migration

requirements

Service assurance and manage

SLAs in the mobile backhaul

networks

Deployment Challenges

Mobile Operator Challenges

Current architectures are based on GSM GERAN and

UMTS release R99 UTRAN access networks

Migration to UMTS R5 defines an all-IP network option


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Reality of Network Migration

yAbis interface is TDM based and carried over E1/T1 links

yCircuit emulation required for Ethernet transportGSM

yATM connections carried over E1/T1 IMA links

yCircuit emulation orPseudowires required for Ethernettransport

UMTS R99

y

has all-IP

access network optionySuitable for Carrier Ethernet, depending on base station

config

UMTS R5

yEV-DO offers T1 or Ethernet interfaces at base stationsCDMA 2000

y Towards IP/Ethernet

ySplit MSC architecture with IP/Ethernet interfaces

y IP/Ethernet links between media gateways and MSCservers

Mobile CoreNetwork

Evolution


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Advantages of Ethernet Mobile Backhaul

y Lower CAPEX and OPEX

yRevenue per bitCost saving

yEthernet services scale to meet traffic demand at radiosites

yArchitecture scaleability to meet current and futuremobile network dimensions

Scalability

ySupport legacy deploymentsLegacy support

yEthernet allows both mobile, triple play, and enterpriseservices to run over the same network

Fixed mobileconvergence

yNetwork carriers can offer new servicesyEase interoperability and comparability

Standardizedservices


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MEF Mobile Backhaul Work

Work Groups, Scope and Timeline


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MEF Work Groups for Mobile Industry

Carrier Ethernet for Mobile operator network evolution Mobile operator defined by using mobile networks as per GSM,

3GPP/3GPP2 (UMTS, CDMA2000) orIEEE802.16e (mobile WiMAX)

Carrier Ethernet is PHY independent It can be transported over

copper, optical, or wireless media

Marketing working group

Focus on industry education and market research

Participate in mobile industry trade shows and conferences

Liaise with analyst and telecoms press

Technical working group

Technical project defines a Service Implementation Agreement (IA)

forCarrier Ethernet services in mobile operators backhaul networks

MEF Service IA release planned for Q4/2008 or earlier

Liaise and work with other organizations, e.g. MFA Forum


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Technical Project Timeline

07 Q1 Present project proposal toTechnical Committee (TC)

07 Q2 Use case specifications forImplementation agreement (IA)

07 Q3 Initial draft of implementationagreement Industry Survey Launch

07 Q4 Approved draft, first straw ballot on

implementation agreement 08 Q4 Letter ballot of IA (might be earlier)

Process is on track.

Interop lab demos based on IA draft are expected in 2008

Now


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MEF Mobile Backhaul Work

Reference Modeland Use Cases


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New Terms for Mobile Backhaul Services

RAN CE generic term for mobile radio access network node or site; may depict

both RAN NC & RAN BS nodes RAN NC a RAN network controller or network controller site

RAN BS a RAN base station or base station site

RAN I/F a non-Ethernet based interface between a RAN CE and GIWF

GIWF Generic Inter-working Function; enables a RAN CE with a RAN I/F toconnect to a UNI

RAN NCRAN BS

RAN Backhaul Network

(MEN)

UNI

RAN BS

UNI

UNI

GIWF

RAN I/F UNI

GIWF

RAN I/F

RAN NC

RAN CE


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Mobile Backhaul Use Case Model

1a

1b

2a

2b

Use Case 1:L

egacy transmissionsupport

Use Case 2: Use of MEF UNI/EVCattributes


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Summary

MEF work is on track and main deliverablesare currently being finalized: CoS recommendation

Synchronization

Ethernet OAM

Protection and fault recovery

UNI type definitions

Performance recommendation

MEF Carrier Ethernet services are ready formobile backhaul prime time


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More atwww.MetroEthernetForum.org/presentations.htm

You are invited to join, contribute or just follow up

with the MEF work on Mobile Backhaul

20070926 13-40 architecture for mobile backhaul - final

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