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Carrier Ethernet In Mobile Backhaul

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

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  1. Carrier Ethernet InMobile Backhaul Moderator: Ran Avital - Ceragon Networks Panelists: Bill Balmer - Accedian Networks Ralph Santitoro - Turin Networks

  2. 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

  3. Carrier Ethernet inMobile Backhaul Ran Avital Director of Strategic and Product Marketing

  4. 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

  5. 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

  6. 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

  7. MEF Mobile Backhaul Work Under discussion Work Groups, Scope and Timeline

  8. 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)

  9. 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

  10. 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

  11. Mobile Backhaul Use Case Model 1a 2a 2b 1b Use Case 1: Legacy transmission support Use Case 2: Use of MEF UNI/EVC attributes

  12. Carrier Ethernet inMobile Backhaul Bill Balmer VP of Business Development

  13. 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

  14. 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.

  15. 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.

  16. 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

  17. Carrier Ethernet inMobile Backhaul Ralph Santitoro Director of Carrier Ethernet Solutions

  18. 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)

  19. 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

  20. 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

  21. 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

  22. 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

  23. More at www.MetroEthernetForum.org/presentations.htm You are invited to Join, Contribute or just follow up with the MEF work on Mobile

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