1 / 29

Step-by-Step Migration to an All-IP Mobile Backhaul Network

Customers’ Event Crete, May 2007. Step-by-Step Migration to an All-IP Mobile Backhaul Network. Presented by: Issar Krausz Business Development senior Manager. Outline. Backhaul at the Spotlight The Challenge Transport cost reduction Packet-based Transport Pseudowires

hermione-demetra
Download Presentation

Step-by-Step Migration to an All-IP Mobile Backhaul Network

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Customers’ Event Crete, May 2007 Step-by-Step Migration to an All-IP Mobile Backhaul Network Presented by: Issar Krausz Business Development senior Manager

  2. Outline • Backhaul at the Spotlight • The Challenge • Transport cost reduction • Packet-based Transport • Pseudowires • New Transport Alternatives for Mobile Backhaul • Transport for Fixed and Mobile Convergence

  3. Cellular Backhaul From the Backstage to the Spotlight

  4. It’s All About Customer ExperienceHigher Speed, Richer Content Internet Surfing HSPA Interactive Gaming • 1 Minute of audio from MP3 music file equals: • 132 seconds – GPRS • 22.4 seconds – UMTS • 4.1 seconds - HSDPA Video Conferencing UMTS Video Telephony Video Streaming EDGE Audio Streaming Video Download Audio Download GPRS MMS Internet Rich call services E - mail Content to person SMS Messaging 40 Kb/sec 75 Kb/sec 2 Mb/sec 14 Mb/sec

  5. 6% 12% 39% 33% 2006 2009 82% 28% 1E1 - 2E1 3E1 - 5E1 > 5E1s Source: Heavy Reading, Dec. 2006 The Rapid Bandwidth IncreaseNo. of E1 Links per Cell-site • Worldwide mobile subscriber base keeps increasing • According to Infonetics’ October 2006 report, Mobile Backhaul Equipment, Installed Base, & Services Market Outlook, there were more than 2 billion mobile subscribers worldwide in 2005, and that number will jump to over 3 billion by 2009 • Enhanced user-experience demands higher-speed data rates • Video streaming, MP3/MP4 downloads, MMS, peer-to-peer applications, Mobile TV • NG mobile standards and services are within reach • LTE – 100Mbps

  6. 3G ATM Voice 2-4  E1/T1 HSDPA ATM Data up to 8 E1/T1 Cell-site Transmission Evolution • New services = more transport bandwidth right out of the cell-site • Access becomes the BW bottleneck • PDH/TDM is not a scalable solution • HSDPA – the “killer application” for mobile backhaul Cell Site 2G TDM 1-2  E1/T1 2G BTS Transport Network PDH, SDH, LL 3G Node B

  7. HSDPAThe backhaul “killer application” • Mobile data traffic to double within the next 12-18 months* • Data volumes in backhaul to surge to 3-4 times current levels within 2 years • Mobile data ARPU will not keep the pace * According to Strategic Analysis, Nov. 2006 Source: Unstrung Insider

  8. The ChallengeOptimizing the Cellular Backhaul • Challenge - Handling capacity growth • Backhaul represents 70% of the transport costs • About 30% of the OPEX (incl. site rental, maintenance, technical sup., etc) • Evolution to future ready transmission – All-IP and FMC • Solution – Cost reductions thru • Abis/Ater BW optimization and data compression • Sharing a single transport network by 2G/2.5G and 3G traffic • Statistical Multiplexing with traffic prioritization • Iub optimization adapted to HSDPA sales growth/strategy • Backhauling over alternative technologies and media • Packet-based transport • Using low cost xDSL access

  9. GSM BTS A-bis Optimization E1 E1 Vmux-400 GSM BTS Optimization of A-bis/A-ter Backhaul Links • Reducing backhaul expenses by more than 50% • Reduce no. of E1 trunks for BTS-BSC connectivity with no voice quality degradation • Smallest footprint device in the market – save on co-location costs • A-bis/A-ter traffic optimization for efficient use of backhaul links – leased lines, satellite links and microwave • Data Compression BSC A-bis Optimization TDM/IP Transport Network E1s Vmux-400

  10. n x E1/T1 IMA STM-1/OC-3 GbE Cut Backhaul Costs thru Aggregation GSM BTS • Substantial cost savings by • Aggregation, Grooming, Overbooking/Oversubscription • Aggregation/grooming of GSM and UMTS traffic onto a unified transport • Statistical multiplexing of UMTS/HSDPA traffic based on ATM capabilities • Dynamic bandwidth allocation based on operator’s predefined priorities • Flexible port configuration to support GSM and UMTS N x E1 > n x E1 2G BSC E1/T1s TDM n  E1/T1 TDM Ch-STM1/OC-3 Cell-site Gateway Multi-Service Aggregation SDH/SONET/ATM Transport Network E1/T1s ATM IMA n x E1/T1 (IMA) STM-1/OC-3 STM-1/ OC-3 ACE-3x00 ACE-3x00 3G RNC IP-Node B Ethernet

  11. 2G BTS E1/T1s ATM orSDH/SONET Transport Network Cell-site Gateway 2G TDM 1-2  E1/T1 Optimized approach 6-8 E1/T1 links 3G ATM 2-4  E1/T1 ACE-3x00 (*) Further optional reduction using low-cost packet transport HSDPA up to 8 E1/T1 3G Node B Cell Site Packet Switched Network FE (*) What have we achieved so far? Cell Site 2G TDM 1-2  E1/T1 3G ATM Voice 2-4  E1/T1 2G BTS The traditional approach 8-16 E1/T1 for a full service offering Transport network HSDPA up to 8 E1/T1 3G Node B Savings of over 80 Million Euros/year

  12. What else can be improved? • There are two main alternatives being considered for additional backhaul cost reduction • Using packet-switched transport • Complement by using DSL access

  13. PON • Ethernet is a future proof RAN transport technology • 3G/3.5G/4G, WiMAX and FMC backhaul • Ethernet can be extended to the cell site over various low-cost technologies • Different types of DSL • p2p and p2mp (PON) fiber connections • WiMAX and Ethernet-based radios • HFC Fiber Microwave Ethernet Transport Media Copper HFC Cable EFM xDSL Wireless Mesh Why Packet-based Transport? • Ethernet presents the most scalable and flexible transport solution to meet the BW challenge right off the cell site • The cost for leased lines is about 2.5 times that of new wireline connections (Ethernet, DSL, cable, PON)

  14. Lesson in HistoryWhat are Pseudowires? • Pseudowire is a mechanism that emulates the essential attributes of a telecommunications service over a packet-switched network • TDM leased line, ATM or Frame Relay • It defines a way to packetize and encapsulate data and create a logical link between two network entities • Pseudowire technology is an enabler for circuit emulation and service emulation of legacy services over packet networks PWE3 #1 PWE3 #2 Tunnel CLE/CPE CLE/CPE TDM, ATM FR, etc. Legacy Service Pseudowire Legacy Emulated Service Legacy Service

  15. Pseudowire Standards • RAD is actively involved in most of the standardization bodies

  16. n x E1/T1 IMA STM-1/OC-3 GbE Saving with Packet-based Transport“All-IP Transport” GSM BTS • All-IP unified transport - Future-ready solution • FMC/IMS • Ready for UMTS Rev.6/7 and over • All TDM and ATM legacy traffic is transported over pseudowires • Clock distribution across the packet network • Dedicated ACR (Adaptive Clock Recovery) mechanisms • Meet the ITU-T G.823 sync. requirements and G.8261 mask • Evolution to IEEE-1588 2G BSC n  E1/T1 TDM E1/T1s TDM Cell-site Gateway Multi-Service Aggregation Packet Switched Network E1/T1s ATM IMA FE GbE ACE-3x00 ACE-3x00 3G RNC UMTS Node B ETH IP-Node B

  17. n x E1/T1 IMA STM-1/OC-3 GbE Signaling and Abis traffic 3G real-time traffic (voice and video) 3G HSDPA and non-delay sensitive traffic (data) HSDPA Offload1st Migration Step – The Hybrid Approach GSM BTS • First step of the migration to packet switched network • Separation of transport to carry • GSM/TDMA and UMTS real time voice and video over SDH/SONET or ATM • UMTS HSDPA data traffic mapped to pseudo-wires over PSN • Ensures QoS for voice and real-time traffic ATM or SDH/SONET Access Network 2G BSC E1/T1s TDM n x E1/T1 STM-1/OC-3 n  E1/T1 TDM Cell-site Gateway Multi-Service Aggregation E1/T1s ATM IMA STM-1/OC-3 ACE-3x00 UMTS Node B GbE ACE-3x00 3G RNC ETH Packet Switched Network FE IP-Node B

  18. n x E1/T1 IMA STM-1/OC-3 GbE The Hybrid Solution over a Wholesale Backhaul Service Voice and Real-time over existing infrastructure GSM BTS • Reduce Opex by using E1/T1 links only for the voice traffic • Scalable cost-effective broadband transport service over DSL (wholesale) • HSDPA will serve mainly for Internet access and fast downloads – mobile broadband • Similar to residential DSL services • Two options to be considered • ADSL2+ - applicable for HSDPA (HSUPA may require more UL BW) • VDSL2 - applicable for HSxPA ATM or SDH/SONET Access Network 2G BSC n x E1/T1 STM-1/OC-3 E1/T1s TDM n  E1/T1 TDM Cell-site Gateway Multi-Service Aggregation E1/T1s ATM IMA STM-1/OC-3 ETH ACE-3x00 GbE UMTS Node B ACE-3x00 3G RNC DSLModem ETH Packet Switched Network IP-Node B DSLAM HSDPA over ADSL2+/VDSL2 wholesale

  19. Leverage Copper Using DSL GSM BTS • Leverage existing DSL and DSLAM infrastructure for access to cell sites • Use multiple DSL links (with copper bonding) for higher bandwidth, longer reach and dynamic adaptivity to available DSL links • TDM/ATM/Ethernet-over-PSN PW encapsulation over DSL 2G BSC E1/T1s TDM n  E1/T1 TDM Cell-site DSL Gateway With Bonding Multi-Service Aggregation DSLAM ATM or Packet-switched Transport Network E1/T1s ATM IMA STM-1 GbE xDSL LA-130 UMTS Node B ACE-3x00 3G RNC n x E1/T1 IMA STM-1/OC-3 ETH Multiple SHDSL linksorADSL2+, VDSL2 GbE IP-Node B

  20. Next Step The Hybrid Approach in a DSL/PSN Environment GSM BTS • Mix of DSL technologies in a PSN environment • Differentiate class of service • SHDSL for high quality services • ADSL2+ and VDSL2 for lower class of service • Solving reach and BW challenges • SHDSL for symmetrical traffic with long reach and relative low bandwidth • ADSL2+ for asymmetrical traffic (HSDPA) with mid reach and high download bandwidth • VDSL2 for symmetrical and asymmetrical traffic with low reach and high bandwidth 2G BSC E1/T1s TDM n  E1/T1 TDM DSLAM Cell-site DSL Gateway Multi-Service Aggregation ATM or Packet-switched Transport Network E1/T1s ATM IMA n x SHDSL GbE LA-130 NG ADSL2+ /VDSL2 UMTS Node B ACE-3x00 3G RNC n x E1/T1 IMA STM-1/OC-3 Ethernet GbE IP-Node B

  21. A Glance at the Transport for Fixed-Mobile Convergence

  22. Backhaul over the Fixed and Mobile Converged Transport Residential DSLAM/ CMTS Triple Play ISP GSM BTS • Single packet-switched infrastructure for multiple mobile and wireline services • Aggregation of 2G TDM traffic and 3G ATM traffic onto the Triple/Quadruple Play and business services infrastructure • Tunneling of legacy traffic using standard pseudowire technologies • TDM/CESoPSN and ATMoPSN based on IETF standards 3G RNC ATM E1/T1s TDM Multi-Service Aggregation Cell-site Gateway ETH E1/T1s ATM IMA Packet Switched Network ETH ETH ACE-3100/3200 UMTS Node B ACE-3x00 2G BSC Business ETH TDM IP-Node B

  23. New Trend Leverage the IP DSLAM Infrastructure Residential Triple Play • Further integration for full FMC implementation • Utilize the same infrastructure as the one used for IPTV GSM BTS ISP E1/T1s TDM Cell-site DSL Gateway With Bonding 2G BSC 3G RNC TDM/ATMoPSN Aggregation Device IP DSLAM E1/T1s ATM IMA Packet Switched Network GbE TDM ATM Ethernet xDSL LA-130 UMTS Node B ACE-3400 ETH Business IP-Node B

  24. …and one more to go

  25. TDM Network Voice TrunkingBW savings in the Inter-MSC Links MSC Site Voice Trunking MSC • Significant cost savings • Up to 16:1 voice compression ratio • Excellent voice quality for customers satisfaction • Fast ROI – less than 6 months • Future proof - supports TDM and IP networks for seamless migration to NG transport • Supports all types of signaling • Optimized HDLC/SS7 signaling transport STM-1 E1s MSC Site Gmux-2000 Voice Trunking MSC STM-1 E1s Remote MSC Site Gmux-2000 MSC/BSC Voice Trunking E1s E1s Vmux-2100

  26. MEGACO IP Network MEGACO TDM Network MEGACO NG-MSCSoftswitch NG-MSC NG-MSC VoIP VoIP Migration to IP Backbones MSC Site Voice Trunking and Media Gateway MSC • Leverage the existing backbone segments while introducing NG-MSC switches STM-1 MSC Site Voice Trunking and Media Gateway Gmux-2000 MSC STM-1 Remote MSC Site Gmux-2000 Voice Trunking and Media Gateway MSC/BSC E1s Vmux-2100

  27. …to wrap up

  28. ATM PDH/SDH Migration to All-IP Cellular Network Abis/Ater/A/E Optimization n  E1/T1 TDM IP DSLAM DSL GSM/GPRS BTS 2G/3G Backhaul over xDSL n  E1/T1 CDMA BTS ATM DSLAM TDM/ATM DSL ETH 2G/3G Aggregation n  E1/T1 ATM TDM/ATM PSN Ethernet/IP/MPLS Conversion to PSN LTE/WiMAX ETH n  E1/T1 CDMA 2000 Node B n  E1/T1 HSDPA Traffic Segregation UMTS/HSDPA Node B n  E1/T1 TDM/ATM Clock Distribution over PSN E1/T1 BSC/RNC STM-1/OC-3 TDM/ATM

  29. thank you for your attention Issar Krausz Issar_k@rad.com www.rad.com

More Related