Axerra Networks Solutions for Mobile Backhaul
About Axerra Networks = Founded in 1999 = Global provider of SERVICE CONVERGENCE solutions over packet transport – A leading vendor of multiservice pseudowire solutions – Active standard bodies participants and influencer – Field proven with live deployments = Award winning products = Offices around the world – = Israel (HQ), EMEA, Russia (incl. CIS), USA, APAC (Hong Kong, Singapore) Financed by strong investors – Carmel Ventures – TLcom – Harbour. Vest 2 - © 2009 Axerra Networks®. All rights reserved.
Mobile Backhaul - Key Market Trends = Enhanced user experience demands higher-speed data rates – HSPA – the “killer application” for mobile backhaul – Flat rate = Installed Worldwide cell site connections will grow from 3 M in 2008 to 4. 2 M in 2011 – The vast majority of today installed cell sites are T 1/E 1 based – Many of the cell sites can’t be upgraded to Ethernet – Ethernet to the cell site will be required in order to support future Node. B / e. NB (LTE) = 4 G (LTE, Wi. Max) technology standardization is in final stage of the approval process – Will take 3 -4 years until mass deployment – Many operators will use PW as IP solution until LTE availability in order to skip one hardware upgrade phase = Access is definitely the bandwidth bottleneck – PDH/TDM is not a scalable solution = Backhaul networks migrating to Ethernet – The mobile RAN is migrating from TDM and ATM to IP/ETH = “All IP” RAN evolution will happen gradually and not in one step – 2 G/3 G Base Stations will co-exist for a long time with 3 G taking over gradually – Base Stations with TDM/ATM I/Fs will stay for at last 3~5 years 3 - © 2009 Axerra Networks®. All rights reserved. Source: Infonetics Research Mobile Backhaul Equipment, Installed Base & Services, October 2008
TDM Backhaul Hits the Breaking Point Ethernet Solutions for Cell Backhaul Source: T-Mobile Europe = Capacity requirements grow – E 1/T 1 costs grow linearly – Need to decouple cost and capacity – Ethernet is more efficient over any media HSPA Base Stations come with Ethernet ports = Ethernet enables scalable, flexible, lower cost per bit bandwidth to the cell site: = – Optimized for data – Convergence – Wi. MAX and 4 G in general 4 - © 2009 Axerra Networks®. All rights reserved. Migration to Ethernet
Migrating to Ethernet Transport - MEF Use Cases Hybrid RAN/HSPA Offload Enables phased migration to Ethernet while: Utilizing low cost and available broadband technology for transporting HSPA traffic = Packet offload over Carrier Ethernet (HSPA offload) = Overlay Carrier Ethernet does bandwidth offloading onto Ethernet services = Legacy network continues to transport voice and deliver timing/signaling = Voice services are migrated onto Ethernet in a later phase “Big Bang” = Emulation over Carrier Ethernet (legacy services over Ethernet) = RAN nodes with legacy interfaces transport all traffic over Ethernet services using emulation technologies – from Day 1 5 - © 2009 Axerra Networks®. All rights reserved.
Pseudo-Wire => the Packet-based RAN Migration Enabler = For the next few years the vast majority of cell site connections will be based on T 1/E 1 interfaces = About 1/3 of overall cell sites are collocated 2 G/3 G sites Growing demand for Ethernet connectivity to high capacity cell sites = – The amount of bandwidth per cell site is estimated to grow by 3 x to 4 x over time – New 3 G and 4 G Node. B will use Ethernet interfaces = Most additions of 3 G cell sites will take place in existing 2 G cell sites – Operators use existing foot print of 2 G cell sites = All traffic originating from the cell site will be carried over Ethernet using PWE 3 gear Use PWE 3 gear to serve collocated 2 G/3 G sites Use PWE 3 gear with advanced functionality (Ethernet Link/Services OA&M and PM) PWE 3 CPE will become an Ethernet Demarcation Device 6 - © 2009 Axerra Networks®. All rights reserved.
Widespread Agreement on the Need for Pseudo-Wires (PW) = Major operators are deploying PW solutions at the cell site and it plays an important role in the evolution of mobile backhaul networks to IP/Ethernet – Some of the operators that announced PW deployment in 2007: T-Mobile, Telecom Italia, Swisscom, Taiwan Mobile, and e. Mobile (Japan) – Standardisation is almost accomplished, including 1588 -2008 Precision Time Protocol – For most carriers it’s not a question of “if” but a question of “where” and “when” Emulated TDM/ ATM/HDLC PW Service BTS BSC TDM E 1 ETH ATM/IMA Node. B ETH PWE 3 Cell Site Device R 5/LTE/ Wi. Max 7 - © 2009 Axerra Networks®. All rights reserved. G. 823/824/8261 Compliant Clock Carrier Ethernet RAN PWE 3 Gateway RNC IP a. GW
PWE 3 CPE Will Become an Ethernet Demarcation Device Monitoring SLA Over 3 rd Party Transport Networks Subscriber Interface OAM PWE 3 Access Device CE Network Interface OAM Ethernet Link OA&M: Discovery, Link Monitoring, Remote Failure Indication, and Loopback PE AC PSN Tunnel Network Interface OAM PWE 3 GW Subscriber Interface OAM PE UNI Eth Link OAM Ethernet Service OAM PW OAM =Ethernet demarcation features enable: – End to End Service Level Assurance § Ethernet Qo. S – Investment protection § PWE 3 CPE of today will evolve to Ethernet Demarcation Device – Lower total cost of ownership § Fewer devices in the Cell Tower 8 - © 2009 Axerra Networks®. All rights reserved. AC CE
Highlights of Key Trends in Mobile Backhaul = Migration to IP/MPLS backhaul networks is inevitable – Drivers are RAN capacity growth, IP base stations and service evolution = Immediate Op. Ex savings and short ROI – Carriers will deploy Ethernet for 3 G and 4 G backhaul to realize significant cost advantages and close the gap between mobile revenue and expense = Investment protection – Shifting to Ethernet Assurance and added value features… = RAN Evolution versus Revolution – 2 G/3 G Base Stations are collocated and will co-exist for a long time with 3 G taking over gradually – Migration to All IP RAN will happen gradually and not in one step = PW Mobile Backhaul solutions are picking up, becoming mainstream – Pseudo-Wire is the Packet-based RAN Migration Enabler – Field-proven with large deployments = PW Mobile Backhaul Solutions Available Today. . for 2 G, 3 G, and Beyond = PW Mobile Backhaul over ANY packet transport network 9 - © 2009 Axerra Networks®. All rights reserved.
Typical 2 G/3 G RAN Backhaul Architecture Radio Access Network BTS BSC Abis E 1/ T 1/ Ch. STM-1 Abis E 1/T 1 DXC A E 1/ T 1/ Ch. STM-1 TDM Leased Lines Iub RNC ATM/IMA, n x E 1/T 1 Node. B E 1/T 1 Ch. STM-1 ATM Switch Iub STM-1 ATM Iu Both 2 G TDM and 3 G ATM traffic are backhauled over TDM leased lines Leased lines for backhaul today account for 20%-40% of Mobile Operators’ Operational Expenses (Op. Ex) 10 - © 2009 Axerra Networks®. All rights reserved.
Key Requirements of Ethernet-based Backhaul = Meeting clocking/synchronization requirements – Compliant with G. 823/824/8261 = Low end-to-end delay must be maintained = Ethernet Service and Link OAM & PM = High Availability = Ensuring Qo. S of different traffic types – Voice, data, video, signaling, management, etc. = Traffic Optimization (TDM grooming, ATM aggregation, encapsulation overhead reduction) 11 - © 2009 Axerra Networks®. All rights reserved.
GSM/UMTS Backhaul over PSN Tunnel Iub - ATM Pseudo-Wire Abis - CES Pseudo-Wire BTS Wi. Max Wi. Fi Node. B E 1/T 1 Ab is ETH nx E 1 1/T A IM Carrier Ethernet/ MPLS 1 M/ST /T 1 E 1 Abis ETH ST M 1 A TM Iub AXN 10 PWE 3 CPE BSC AXN PWE 3 Gateway RNC Iub = Supports all generations (GSM, EDGE, UMTS and HSPA) of mobile voice and data, also Wi. Max and Wi. Fi and even Enterprise Services = Preserves native features and signaling across packet networks = Meets strict clock synchronization requirements through Axerra’s High-Precision Clock Recovery (HPCR®) – As specified in ETSI TS 125 402 or 3 GPP TS 25. 104 = Ensures Qo. S of different traffic types such as voice, data, signaling, management, etc. = Eliminates the need for expensive ATM switch 12 - © 2009 Axerra Networks®. All rights reserved.
HPCR® –High Precision Clock Recovery ± 15 PPB BTS/Node. B AXN 10 PWE 3 CPE E 1/T 1 s G. 823/824/8261 Compliant Clock AXN Gateway Carrier Ethernet/ MPLS BSC/RNC E 1/T 1/STM-1 HPCR Synchronization Information High accuracy Primary Reference Source (PRS) clock = Complies with ITU-T G. 823, G. 824, G. 8261 = Designed to meet the clock synchronization requirements as specified in ETSI EN 300 912 and TS 125 402 “Synchronization in UTRAN stage 2. " = Tested and approved by major mobile equipment vendors 13 - © 2009 Axerra Networks®. All rights reserved.
Backhaul from Cell Site - HSPA Offload 2 G BTS BSC SDH/Leased Lines Node. B E 1 s/Ch STM-1 ATM Switch 1 -2 x. T 1/E 1 for R 99 Voice/Signalling E 1 s/Ch STM-1 ATM T 1/E 1 AXN 10 PWE 3 ETH HSDPA ADSL + Ethernet or IP or ATM RNC ETH/ATM AXN PWE 3 Gateway Emulated ATM Circuits = The Hybrid approach: – R 99 voice/data and signaling remain on traditional TDM leased lines – HSPA data traffic runs on Ethernet network – possibly ADSL = Enables phased migration to Ethernet while: – Utilizing low-cost and available broadband technology for transporting HSDPA traffic – Lower quality Ethernet network needed – HPCR not needed: sync via SDH – same as today – Lower cost savings, but possibly easier deployment 14 - © 2009 Axerra Networks®. All rights reserved.
Backhaul From Aggregation/Hubbing Po. P Central Site (CO) BTS/ Node. B LL BSC Hubbing Site BTS/ Node. B nx. Ch. STM-1 nx. E 1/T 1 s PDH MW ETH Carrier Ethernet/ IP/ MPLS Transport Pm. P BTS/ Node. B ETH AXN Gateway STM-1 ATM nx. STM-1 ATM RNC Emulated TDM/ATM Circuits = The majority of cells will use TDM access for many years – About 75% of cells in 2009 will still be connected over Microwave and PDH/SDH = Today Tier 2 backhaul is done mainly with SONET/SDH but Ethernet/MPLS will follow to the Aggregation Po. Ps = Carrier Ethernet and MPLS will be available in Aggregation Po. Ps much earlier than in the cells = Wireline and Wireless network unification plays a major factor = Provides major Op. Ex saving = Extends grooming to hub sites - 3/1/0 and VPI/VCI 15 - © 2009 Axerra Networks®. All rights reserved.
Multiple Services – One Solution Cell Site BTS 3 G EVDO Wi. MAX Pseudo-Wire Tunnel MSC BSC T 1/E 1 Ethernet ATM FR/HDLC Ethernet TDM ATM/FR/HDLC Gig. E AXN Ethernet Service Multiprotocol Pseudo-Wires RNC AXN RNC Axerra Service Supported Service Cell Site Interface MSC Interface Benefit CES Pseudo-Wire AMPS, GSM, CDMA TDM: T 1/E 1, DS 3/E 3, OC 3/STM-1, B/W gains from DS 0 grooming ATM Pseudo-Wire UMTS, HSDPA ATM & ATM IMA: T 1/E 1, DS 3/E 3, OC 3/STM-1 ATM: T 1/E 1, DS 3/E 3, OC 3/STM-1 Stat-mux gains HDLC: T 1/E 1, DS 3/E 3, OC 3/STM-1 Stat-mux gains FR: T 1/E 1, DS 3/E 3, OC 3/STM-1 Stat-mux gains Ethernet: Gig. E No need for TDM interface on router HDLC Pseudo-Wire FR Pseudo-Wire Ethernet switching 1 x. RTT, EVDO i. DEN EVDO, Wi. MAX, 4 G 16 - © 2009 Axerra Networks®. All rights reserved. FR: T 1/E 1, DS 3/E 3 Ethernet: FE No ATM switch needed in CO HDLC data interface FR data interface
Axerra’s Complete Product Family AXN Product Portfolio of Access Devices and Gateways = Scalable family of platforms – 1 to 1000 E 1/T 1 capacity – Carrier Class Reliability = Capacity AXN 1600 N 1000 E 1/T 1 AXN 800 Multiservice Pseudo-Wire – CES + Layer 2 Pseudo-Wire = AXN 10 Pseudo-Wire flexibility – Axerra-owned code – Software-based architecture – 5 patents + 1 pending AXN 1 1 E 1/T 1 CPE/Cell Site AXNVision = Point-and-Click provisioning = Performance Monitoring = Comprehensive Fault Management = Standards-based 17 - © 2009 Axerra Networks®. All rights reserved. MTU Po. P/CO Location
Axerra’s Unique Value Proposition = Single and robust platform supporting both Mobile Backhaul and Business Service Delivery – Best-of-Breed Pseudo-Wire industry leader and solution provider – Enable leased line replacement such as PBX backhaul and converging legacy services over PSN covering private line, FR, ATM, and HDLC services – Multiple Services – One Solution § Beyond Circuit Emulation – variety of Layer-2 Pseudo-Wire services = Scalable solution with modular and flexible platform = Supports all generations of mobile & business services = Robust and accurate adaptive clock recovery mechanism = Strong momentum with world class OEM and SI partners = Field proven 18 - © 2009 Axerra Networks®. All rights reserved.
Thank you for your attention Visit our website at www. axerra. com
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