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Carrier Ethernet In Mobile Backhaul. Moderator: Ran Avital - Ceragon Networks Panelists: Bill Balmer - Accedian Networks Ralph Santitoro - Turin Networks. Ran Avital MEF Market Research Co-Chair Director of Strategic and Product Marketing Ceragon Networks rana@ceragon.com.

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carrier ethernet in mobile backhaul

Carrier Ethernet InMobile Backhaul

Moderator:

Ran Avital - Ceragon Networks

Panelists:

Bill Balmer - Accedian Networks

Ralph Santitoro - Turin Networks

slide2

Ran Avital

MEF Market Research Co-Chair

Director of Strategic and Product Marketing

Ceragon Networks

rana@ceragon.com

Bill Balmer

VP of Business Development

Accedian Networks

bbalmer@accedian.com

Ralph Santitoro

Chair, MEF Web Marketing Committee

Director of Carrier Ethernet Solutions

Turin Networks

Ralph@Marcom-Services.net

carrier ethernet in mobile backhaul1

Carrier Ethernet inMobile Backhaul

Ran Avital

Director of Strategic and Product Marketing

towards carrier ethernet ran backhaul
Towards Carrier Ethernet RAN Backhaul

Cellular Base Station

Central Office

Ethernet Backhaul

Ethernet

Switch

Ethernet

Carrier Ethernet Services emerges as the natural choice.

Decouple the capacity growth from the OPEX and CAPEX in the transport network

Heavy reading, May 2007

ethernet mobile backhaul is forecast to soar
Ethernet Mobile Backhaul is Forecast to Soar

Mobile operators shelled out $19.5B in mobile backhaul service charges in 2006

Infonetics Research, April 2007

The cost per mobile backhaul connection for leased lines PDH and ATM over PDH is about two and a half times that of new wireline connections (Ethernet, DSL, cable, PON), now and in 2010

Ethernet makes up just 1% of total mobile backhaul equipment revenue in 2006, but is forecast to soar to $2.5 billion by 2010, at which time it will represent 41% of the market

The MEF Work

ethernet services for mobile backhaul
Ethernet services for mobile backhaul

Business Challenges

Deployment Challenges

  • Cost and revenue decoupling
  • Define Ethernet services
  • Multiple technologies GSM, WCDMA, CDMA2000, and WiMAX 802.16e
  • Base stations collocation
  • Leverage install base
  • 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

MEF will deliver an

Implementation Agreement (IA) to accelerate the adoption of Ethernet services for Mobile Backhaul

mef mobile backhaul work

MEF Mobile Backhaul Work

Under discussion

Work Groups, Scope and Timeline

technical workgroup scope and deliveries
Technical workgroup scope and deliveries

Scope of Phase 1

Recommendations

  • Single MEN
  • Define Ethernet services
  • RAN backhaul part of mobile backhaul
  • GSM, WCDMA, CDMA2000, and WiMAX 802.16e
  • ‘Transparent’ or out-of-MEN sync methods
  • 4 main use cases
  • Main use cases
  • Ethernet Service Types
  • CoS
  • Performance
  • Synchronization
  • Ethernet OAM
  • Protection and fault recovery
  • UNI Type definition

Project deliverable:

Service Implementation Agreement (IA)

technical project timeline
Technical Project Timeline
  • 07 Q1 – Present project proposal to Technical Committee (TC)
  • 07 Q2 – Use case specifications for Implementation agreement (IA)
  • 07 Q3 – Initial draft of implementation agreement
    • Industry Survey Launch
  • 07 Q4 – Approved draft, first straw ballot on implementation agreement
  • 08 Q4 – Letter ballot of IA (might be earlier)

Now

Process is on track. Interop lab demos based on IA draft are expected in 2008

new terms for mobile backhaul services
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 to connect to a UNI

RAN CE

RAN BS

RAN NC

UNI

UNI

RAN Backhaul Network

(MEN)

RAN NC

RAN BS

GIWF

GIWF

RAN I/F

UNI

UNI

RAN I/F

mobile backhaul use case model
Mobile Backhaul Use Case Model

1a

2a

2b

1b

Use Case 1: Legacy transmission support

Use Case 2: Use of MEF UNI/EVC attributes

carrier ethernet in mobile backhaul2

Carrier Ethernet inMobile Backhaul

Bill Balmer

VP of Business Development

wimax backhaul from bst to msc
WiMAX Backhaul: from BST to MSC

WiMAX

WiMAX

BST

BST

WiMAX

HUB

RPTR

BST

MSC

Outsourced Backhaul

BST: Base Station, RPTR: Repeater Site, HUB: Hub Site, MSC: Mobile Switching Center

initial rollouts of wimax
Initial Rollouts of WiMAX
  • Use of outsourcing model to increase coverage of pilot trials
  • Allows multiple simultaneous market launches
  • Mostly using a hybrid wireless+fiber approach
  • Usually involves two or more carriers
  • Typically involves numerous technologies from BST to MSC (TDM, ATM, MPLS/Pseudowires) and will continue so for a long while.
  • Always involves a multitude of different vendors.
  • With WiMAX backhaul, only one thing is common from BST to MSC:

it’s IP packets on an Ethernet connector at both ends.

why are slas important for wimax backhaul
Why are SLAs important for WiMAX Backhaul?
  • Since VoIP is a main driver for Mobile WiMAX, SLAs are paramount when outsourcing WiMAX backhaul.
  • End-users have come to tolerate a lesser voice quality on Mobile phones vs traditional Land lines.
  • End-users have come to tolerate a lesser voice quality on VoIP vs traditional analog POTS.
  • End-users will not tolerate an excessive combined voice degradation due to doing VoIP over Mobile WiMAX.
  • Since the outsourced backhaul provider is usually a Layer 2 service provider, he shall then use Layer 2 SLA parameters (i.e. Ethernet SLA parameters) applied 24/7 on live traffic.
emerging ethernet standards allow wimax backhaul slas
Emerging Ethernet Standards allow WiMAX backhaul SLAs

WiMAX

HUB

RPTR

BST

MSC

Outsourced Backhaul

MEF &

ITU Y.1731

Service Layer OAM (UNI to UNI)

Connectivity Layer OAM

IEEE 802.1ag,

MEF & ITU Y.1731

Access Link OAM

Access Link OAM

IEEE 802.3ah

carrier ethernet in mobile backhaul3

Carrier Ethernet inMobile Backhaul

Ralph Santitoro

Director of Carrier Ethernet Solutions

what is ethernet over pdh eopdh
What is Ethernet over PDH (EoPDH)?
  • PDH (Plesiochronous Digital Hierarchy)
    • Term to collectively refer to T1/E1 and T3/E3 circuits
  • EoPDH enables Ethernet-based service delivery over copper/PDH access networks
    • Both E-Line (site-to-site) and E-LAN (multi-site) services
    • Ethernet Access to IP services (Internet Access, IP VPNs, VoIP)
  • Bandwidth Options (technology dependent)
    • Up to 12Mbps (8 bonded T1s) or 24Mbps (16 bonded T1s)
    • Up to 16Mbps (8 bonded E1s) or 32Mbps (16 bonded E1s)
    • Up to 32Mbps (1 E3)
    • Up to 45Mbps (1 T3)
what technologies are used do deliver eopdh
What technologies are used do deliver EoPDH ?
  • Two ‘competing’ technologies
    • MLPPP/BCP-based EoPDH (RFC1990 / RFC3518)
      • for encapsulation, bonding and bridging
    • GFP/VCAT/LCAS-based EoPDH (G.8040)
      • GFP (G.7040) for encapsulation,
      • VCAT (G.7041) and LCAS (G.7042) for bonding
  • CPE device support
    • MLPPP/BCP-based EoPDH supported on most CPE WAN routers and IADs
    • GFP-based EoPDH supported on new types of CPE devices
how does it work
How does it work?

IP

IP

ETH

ETH

PPP

or GFP

PPP

or GFP

Switching Hub

Switching Hub

E1 or Channelized STMn

Ethernet Service Frame in S-VLAN / EVC

Internet

Ethernet Frame

Microwave

Backhaul

Provider

Bonded E1s

EoPDH

Aggregator

Mobile Switching Center or Switching Hub

EoPDH

CLE

Cell Site RAN

PTT

IP

IP

ETH

ETH

  • Ethernet Frames enter EoPDH CLE device and encapsulated
    • Into PPP or GFP for transport over PDH network
  • PTT multiplexes E1s into channelized STMn circuits or Microwave Backhaul provider transports E1 data
  • E1s or channelized STMn circuits terminated on EoPDH edge aggregation device
    • E1s extracted from channelized STMn circuits
    • PPP or GFP sessions terminated and Ethernet Frames are reconstructed
  • Each cell site RAN Ethernet frames mapped to S-VLANs (EVC)
    • To preserve each cell site RAN’s C-VLAN IDs and 802.1p CoS markings
  • S-VLAN-tagged Ethernet frame (EVC) to Mobile Switching Center or Switching Hub
    • MSC provides connection to Internet. Switching Hub aggregates Ethernet traffic
why eopdh for mobile backhaul
Why EoPDH for Mobile Backhaul?

Switching Hub

Switching Hub

Switching Hub

  • Enables mobile operators to backhaul and aggregate data services over a Carrier Ethernet infrastructure
    • Natural evolution of current SDH-based aggregation network to support high growth IP-centric applications
      • Internet access, VoIP and IP VPNs over WiMAX or GSM RANs
    • Can terminate PDH circuits at hub sites enabling more efficient (lower OpEx) transport of IP services
      • Enables subscriber data service aggregation and oversubscription over Carrier Ethernet transport network between switching hubs

Mobile Switching Center

Carrier Ethernet Transport Network

Internet

Microwave

Backhaul

E1

Backhaul

carrier ethernet in mobile backhaul q a
Carrier Ethernet in Mobile Backhaul - Q&A

Ran Avital

MEF Market Research Co-Chair

Director of Strategic and Product Marketing

Ceragon Networks

rana@ceragon.com

Bill Balmer

VP of Business Development

Accedian Networks

bbalmer@accedian.com

Ralph Santitoro

Chair, MEF Web Marketing Committee

Director of Carrier Ethernet Solutions

Turin Networks

Ralph@Marcom-Services.net

more at

More at

www.MetroEthernetForum.org/presentations.htm

You are invited to Join, Contribute or just follow up with the MEF work on Mobile