Iscit2007 keynote juergenschindler

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Revolution from 3G to LTE

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Iscit2007 keynote juergenschindler

  1. 1. Dr. Jürgen Schindler Nokia Siemens Networks October 25th, 2007 (R)evolution from 3G to LTE
  2. 2. 2 © Nokia Siemens Networks. All rights reserved. Trends • Wireless industry faces spectrum liberalization • Subscribers go for predictable communication costs Flat Rates • Ever increasing device capabilities are moving away from network capabilities Device Capabilities • Services and Applications are moving towards the network/internet Services / Applications • I&C industry observes a growing trend towards an all-IP architecture All IP Trends • Operators observe increase in wireless data usage Wireless Data Spectrum IP €
  3. 3. 3 © Nokia Siemens Networks. All rights reserved. Operators are launching HSPA on flat rate • Germany: 400 MB for €29 5 GB for €42 UK: 120 MB for €9 • HK: Unlimited for €46 Italy: 5 GB for €19 Austria: 30 GB for €59 • Switzerland: 2.5 GB for €36 UK: 1 GB for €66 • Germany: 5 GB for €49 UK: 3 GB for €36 • Singapore: 1 GB for €19 Source: Operator webpages June 07
  4. 4. 4 © Nokia Siemens Networks. All rights reserved. As a result the traffic in networks is growing strongly… 1000GByte Daily HSDPA traffic over example European network • In many networks supplied by Nokia Siemens Networks HSDPA traffic has grown significantly – Exceeding 1200GB daily – Reaching 1Mbps per NodeB – Up to 160GB for single user per month, typically >500MB/month – HSDPA traffic has exceeded voice volume quickly after launch – In some networks HSDPA counts for up to 80% of the traffic volume HSDPA data volume (MAC-d) at lub [MA-7]
  5. 5. 5 © Nokia Siemens Networks. All rights reserved. New Technologies are needed to maintain profitabilityEuropermonth 15 20 25 30 35 40 2008 2009 2010 2011 2012 2013 2014 2015 10 45 Year Europermonth 15 20 25 30 35 40 2008 2009 2010 2011 2012 2013 2014 2015 10 45 Year 0 5 10 15 20 25 Euro 100 30 35 40 200 300 400 500 600 700 800 900 1000 HSPA WCDMA EDGEGPRS Served MB per User per Month 0 5 10 15 20 25 Euro 100 30 35 40 200 300 400 500 600 700 800 900 1000 HSPA WCDMA EDGEGPRS Served MB per User per Month Declining data access revenue per subscriber High network infrastructure cost per served MB
  6. 6. Spectrum – the precious building ground for operators
  7. 7. 7 © Nokia Siemens Networks. All rights reserved. Source: Ofcom Radio Spectrum is a Scarce Resource …
  8. 8. 8 © Nokia Siemens Networks. All rights reserved. Source: Ofcom coverage capacity … and Everyone wants a share of the „Sweetspot“
  9. 9. 9 © Nokia Siemens Networks. All rights reserved. Urban 2006 2008 2010 2012 2014 2016 2018 2020 Rural 2006 2008 2010 2012 2014 2016 2018 2020 or 2.6 GHz 2.1 GHz 2.6 GHz 2.1 GHz LTE UMTS UMTS LTE 900 MHz 900 MHz GSM or GSM UMTS LTE LTE Scalable bandwidthSpectrum migration scenarios for LTE Cost efficient deployment by usage of lower frequency bands
  10. 10. 10 © Nokia Siemens Networks. All rights reserved. Standardization – to make sure that it all fits together
  11. 11. 11 © Nokia Siemens Networks. All rights reserved. Technology evolution GSM/ WCDMA GSM/ WCDMA ’05 ’06 ’07 ’08 ’09 ’10 WiMAX-802.16e (Mobile)WiMAX-802.16e (Mobile) HSPAHSPA MobileBroadband Wireless 14/2.0 14/5.7 42/113.6/0.4 46/ 7 92/14[Downlink / Uplink] (peak rate) TDD FDD TrialTrialPS Only I-HSPA (pre-LTE)I-HSPA (pre-LTE) LTELTE173 / 58 10 Mbit DL, 14Mbit Cell Capa MBMS DemoDemo TrialTrial EDGE EDGE Evolution 0.6/0.240.3/0.24 1.2/0.5
  12. 12. 12 © Nokia Siemens Networks. All rights reserved. RAN4 Core Requirements and Performance: 3GPP LTE Standardization Status SAE : Report on Technical Options and Conclusions TR 23.882 SA2 – Stage 2 : Function Specifications CTx – Stage 3: Protocol Specifications LTE : RAN Stage 2 RAN Stage 3: E12/07 Functions for LTE Functions for 3GPP Access Functions for non-3GPP Access 06/08 E12/08 freeze 03/07 09/07 12/07 Delayed up to 3 month Delayed up to 6 month A S O N D Q3 Q4 2006 J F M A M J J A S O N D Q1 Q2 Q3 Q4 J 2007 2008 F M A M J J A S O N D Q1 Q2 Q3 Q4 RAN1 RAN2 RAN3 Full SpecificationITU & regulation issues RAN5 UE Testing: 80% Completion40% Completion open
  13. 13. 13 © Nokia Siemens Networks. All rights reserved. NGMN Consortium (as of 07/2007)
  14. 14. 14 © Nokia Siemens Networks. All rights reserved. NSN LTE demonstrator for Radio and Core Screenshot (measurement & simulation results)
  15. 15. 15 © Nokia Siemens Networks. All rights reserved. LTE-SAE Trial Initiative Planning and paper testing 2006 Q1 Q2 Q3 Q4 2007 Q1 Q2 Q3 Q4 2008 Q1 Q2 Q3 Q4 2009 Q1 Q2 Q3 Q4 2010 Q1 Q2 Q3 Q4 Interoperability Air-interface principles Test of basic functions IODT IOT Friendly customer trails Proof of Concept Trials M.0 M.1 M.2 M.3 M.4 M.5 M.7 / M.8M.6 M.9 M.10 M.12M.11 Planning and paper testing 2006 Q1 Q2 Q3 Q4 2007 Q1 Q2 Q3 Q4 2008 Q1 Q2 Q3 Q4 2009 Q1 Q2 Q3 Q4 2010 Q1 Q2 Q3 Q4 Interoperability Air-interface principles Test of basic functions IODT IOT Friendly customer trails Proof of Concept Trials M.0 M.1 M.2 M.3 M.4 M.5 M.7 / M.8M.6 M.9 M.10 M.12M.11 2006 Q1 Q2 Q3 Q4 2007 Q1 Q2 Q3 Q4 2008 Q1 Q2 Q3 Q4 2009 Q1 Q2 Q3 Q4 2010 Q1 Q2 Q3 Q4 2006 Q1 Q2 Q3 Q4 2007 Q1 Q2 Q3 Q4 2008 Q1 Q2 Q3 Q4 2009 Q1 Q2 Q3 Q4 2010 Q1 Q2 Q3 Q4 Interoperability Air-interface principles Test of basic functions IODT IOT Friendly customer trails Proof of Concept Trials M.0 M.1 M.2 M.3 M.4 M.5 M.7 / M.8M.6 M.9 M.10 M.12M.11 Test area Demonstrator V1.1 2.6GHz / 20MHz BW Pre-Commercial-HW 900MHz/1.25MHz BW
  16. 16. 16 © Nokia Siemens Networks. All rights reserved. LTE – the beautiful solution
  17. 17. 17 © Nokia Siemens Networks. All rights reserved. Migration Options to LTE LTE R8 Enabling flat broadband architecture CDMA Leverage existing handset base I-HSPA Greenfield GSM/ (E)GPRS W-CDMA/ HSPA
  18. 18. 18 © Nokia Siemens Networks. All rights reserved. NSNs modular base station concept Multi-radio evolution made easy • Same platform for all technologies • New site acquisition and construction principles with Flexi BTS • Easy building of efficient and flexible multiradio sites • Standardized interfaces between modules • Leading 2G/3G inter- working features WCDMA /HSPA LTE WiMAX Only 1.1m GSM /EDGE
  19. 19. 19 © Nokia Siemens Networks. All rights reserved. Basic Concepts / Architecture Access Core Control eNodeB aGW IMS HLR/HSS Flat Overall Architecture 2-node architecture IP routable transport architecture Improved Radio Principles New transmission schemata Multi-antenna technologies Signaling and scheduling optimization New Core Architecture Simplified Protocol Stack Simple, more efficient QoS UMTS backward compatible security LTE / SAE introduces the mechanism to fulfill the requirements of a next generation mobile network RAN MME ISN GW eUtran
  20. 20. 20 © Nokia Siemens Networks. All rights reserved. Flat LTE Architecture GSM/EDGE/ UMTS/HSPA Access Core Control Node B RNC IMS HLR/HSS LTE & I-HSPA Shift of functionality BTS BSC MSCMGW SGSN GGSN eNodeB aGW MGW • Introduction of I-HSPA with LTE Architecture and UMTS Air Interface • Interworking, smooth migration, service continuity and investment protection
  21. 21. 21 © Nokia Siemens Networks. All rights reserved. Key Principles of the LTE Air Interface Fast Link Adaptation due to channel behaviour Short TTI = 1 ms Transmission time interval Advanced Scheduling Time & Freq. TX RX Tx Rx MIMO Channel DL: OFDMA UL: SC-FDMA scalable 64QAM Modulation ARQ Automatic Repeat Request
  22. 22. 22 © Nokia Siemens Networks. All rights reserved. OFDM • Power efficient uplink increasing battery lifetime • Improved cell edge performance by low peak to average ratio • Reduced Terminal complexity Uplink: SC-FDMA • Enabling peak cell data rates of 173 Mbps DL and 58 Mbps in UL * • Scalable bandwidth: 1.4 / 3 / 5 / 10 /15 / 20 MHz also allows deployment in lower frequency bands (rural coverage, refarming) • Short latency: 10 – 20 ms ** • Improved spectral efficiency • Reduced interference • Very well suited for MIMO Downlink: OFDMA * At 20 MHz bandwidth, FDD, 2 Tx, 2 Rx, DL MIMO, PHY layer gross bit rate ** roundtrip ping delay (server near RAN)
  23. 23. 23 © Nokia Siemens Networks. All rights reserved. MIMO 2 50 100 150 200 Mbit/s MIMO up to 2x2 Dual Antenna Terminals Higher-order modulation and turbo codes Today User closed to BTS Dual Stream High Datarates User closed to cell edge Single Stream Diversity Gain MIMO channel Transmitter Antenna array Antenna array Antenna array Antenna array MIMO Base band MIMO Base band Receiver MIMO Base band MIMO Base band
  24. 24. 24 © Nokia Siemens Networks. All rights reserved. Comparison of Throughput and Latency
  25. 25. Summary – what to take away?
  26. 26. 26 © Nokia Siemens Networks. All rights reserved. LTE brings significant benefits both for operators and end users • Reduced complexity, flat IP based packet-only architecture lower TCO (CAPEX and OPEX) • Allow for introduction of cost efficient flat-rate pricing structures. • Inter-working with legacy systems as integral part of service continuity • Scalable bandwidth allows flexible deployment with limited spectrum • Significant improvements in spectral efficiency and data performance for multimedia services • Enriched user experience with real time, interactive services and seamless connectivity • Wide area Broadband mobility up to high speeds • Increased Throughput with decreased response times (DSL like behavior) • A wide variety of devices and services 3.5G LTE 3.5G LTE Peak Throughput Latency Factor10 Factor2-3 3G 3.5G LTE 50% >>50% Cost/MByte
  27. 27. 27 © Nokia Siemens Networks. All rights reserved. Thank you for your attention!

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