Comparining Mobile Wimax With Hspa And Lte


Published on

LTE details

1 Like
  • Be the first to comment

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Comparining Mobile Wimax With Hspa And Lte

  1. 1. Prepared by: Syed Khurram Iqbal 1
  2. 2. The data and statements in this presentation reflect the views of the WiMAX Forum based on currentlyavailable information obtained from WiMAX Forum and industry sources. While the presentation isbelieved to be accurate as of the date of its release, the WiMAX Forum does not warrant that theinformation presented herein is complete or without error. All materials are provided on an “AS-IS”basis and the WiMAX Forum disclaims all warranties.This presentation contains projections and other forward-looking statements that have beendeveloped through assumptions based on currently available information. All such statements aresubject to certain risks and uncertainties that could cause actual developments and results to differmaterially from those in the forward-looking statements. Such factors include, without limitation,unanticipated technological and other issues in developing and implementing product specificationsand product certification testing, issues and delays that may arise in the activities of standardsorganizations, including, without limitation, in IEEE 802.16, changes and/or unanticipateddevelopments in the governmental regulatory environment, unanticipated technological andmanufacturing issues among product manufacturers in designing, building, and/or distributingproducts that implement WiMAX™ technology, market demand for WiMAX™ products and/orproducts built to operate within specified WiMAX Forum® profiles, and environmental, political, socialand economic factors beyond the control of the WiMAX Forum.Specification and certification planning is a dynamic process that responds, in part, to market demandand other factors, including those identified above. All future plans are subject to change withoutnotice as part of this process. Prepared by: Syed Khurram Iqbal 2
  3. 3.  HSPA+: Next step in 3GPP Migration Path Mobile WiMAX Rel 1.5 and HSPA+ 3GPP Long Term Evolution (LTE) LTE Peak User Performance & Mobile WiMAX Rel 1.5 Mobile WiMAX Rel 2.0 Timeline Comparison Migration Path Options for Today’s Mobile Operators Summary and Conclusion Prepared by: Syed Khurram Iqbal 3
  4. 4.  FDD 2x5 MHz Channel  Uplink: BW  BPSK/QPSK  Downlink:  (1x2) SIMO  QPSK/16QAM  5.8 Mbps Peak  (1x2) SIMO  Availability: 2007  14 Mbps Peak Mobile WiMAX Rel 1.0 (TDD, 10 MHz Channel BW) has higher peak rate & 2x to 3x greater DL1 sector throughput than HSPA Rel-61. Throughput advantage depends on ratio of DL to UL traffic see white paper: “Mobile WiMAX – Part II: A Comparative Analysis”, available on WiMAX Forum website for a more detailed analysis.. Prepared by: Syed Khurram Iqbal 4
  5. 5. FDD 2x5 MHz Channel BW – as in Rel-6HSPA Rel-7 Enhancements1 (Availability: late 2008) 64QAM in DL with (1x2) SIMO or … 16QAM in DL with (2x2) MIMO 16QAM in UL Higher VoIP CapacityHSPA Rel-8 Enhancements (Expected availability: 2009) Simultaneous DL support for (2x2) MIMO + 64QAM Higher order MIMO & UL MIMO being considered2 1. Ref: “Release 7 HSPA+ for Mobile Broadband Evolution”, Qualcomm Inc. December 2007 2. In UMTS white paper “Towards Global Mobile Broadband, February 2008”, (2x2) MIMO in UL is part of Release 8, other sources indicates it is only being considered Prepared by: Syed Khurram Iqbal 5
  6. 6. HSPA1 WiMAXParameter Rel-7 Rel-8 Rel 1.5Frequency 2000 MHz 2500 MHzDuplex FDD FDD TDDChannel BW 2 x 5 MHz 2 x 5 MHz 10 MHzBS Antenna (1x2) SIMO (2x2) MIMO (2x2) MIMOMS Antenna (1x2) SIMO (1x2) SIMODL Mod-Coding2 64QAM-5/6 16QAM-3/4 64QAM-5/6 64QAM-5/6 64QAM-5/6UL Mod-Coding2 16QAM-3/4 64QAM-5/6 64QAM-5/6DL Peak User Rate 17.5 Mbps 21 Mbps 35 Mbps 36 Mbps 48 Mbps3UL Peak User Rate 8.3 Mbps 8.3 Mbps 8.3 Mbps 17 Mbps 24 Mbps4 1. Source: “Release 7 HSPA+ for Mobile Broadband Evolution”, Qualcomm Inc. December 2007 2. Results for unity coding are often reported for HSPA, code rate used in table is considered more realistic for actual deployments and provides a more direct comparison to Mobile WiMAX 3. Assumes DL/UL ratio 3:1 4. Assumes DL/UL ratio 1:3 Prepared by: Syed Khurram Iqbal 6
  7. 7.  Mobile WiMAX Rel 1.5 has comparable peak DL performance for the same Modulation, Coding, and Channel BW as HSPA Rel-8 Mobile WiMAX Rel 1.5 has >2 times better peak UL performance HSPA+ is constrained to 2 x 5 MHz channels in traditional 3G spectrum assignments Mobile WiMAX Rel 1.5 supports channel BWs up to 20 MHz, FDD and TDD, and has planned profiles in 700, 1700, 2300, 2500, & 3500 MHz frequency bands Mobile WiMAX provides a flat all-IP e2e network Prepared by: Syed Khurram Iqbal 7
  8. 8.  3GPP (LTE) is Adopting:  OFDMA in DL with 64QAM  All IP e2e Network  Channel BWs up to 20 MHz  Both TDD and FDD profiles  Flexible Access Network  Advanced Antenna Technologies  UL: Single-Carrier FDMA (SC-FDMA), (64QAM optional) LTE is adopting technology & features already available with Mobile WiMAX  Can expect similar long-term performance benefits and trade- offs Prepared by: Syed Khurram Iqbal 8
  9. 9.  LTE Represents a Major Upgrade from CDMA-Based HSPA (or EV-DO)  No longer a “simple” SW upgrade: ▪ CDMA to OFDMA, represent different technologies ▪ Circuit switched to IP e2e network  Also requires new spectrum to take full advantage of wider channel BWs and …  Requires dual-mode user devices for seamless internetwork connectivity Prepared by: Syed Khurram Iqbal 9
  10. 10. Reported LTE Results Parameter Qual- WiMAX Rel 1.5 Motorola1 T-Mobile2 comm3 BS Antenna 2x2 4x4 2x4 4x2 2x2 4x4 Channel BW 2 x 20 MHz 2 x 20 MHz Mod-Code Rate 64QAM-5/6 64QAM- 64QAM-? 64QAM-5/6 5/6 DL Peak User 117 226 144 277 144.6 289 Rate Mbps Mbps Mbps Mbps Mbps Mbps MS Antenna 1x2 1x2 1x2 Mod-Code Rate 64QAM4-? 16QAM4-? 64QAM-5/6 UL Peak User ? ? 50.4 75 69.1 Mbps Rate Mbps Mbps1. Motorola website, “LTE In Depth” , Reference does not show UL peak rate projections2. “Trials–Ensuring Success for Innovation”, Joachim Horn, T-Mobile, NGMN Conference presentation, June 25-27,20083. “3GPP Long-Term Evolution (LTE)”, Qualcomm, January 20084. 64QAM is optional for UL in LTE specification, 16QAM is mandatory Prepared by: Syed Khurram Iqbal 10
  11. 11. Parameter LTE Mobile WiMAX Rel 1.5Duplex FDD and TDD FDD and TDDFrequency Band for 2000 MHz 2500 MHzPerformance AnalysisChannel BW Up to 20 MHz Up to 20 MHzDownlink OFDMA OFDMAUplink SC-FDMA OFDMADL Spectral Efficiency1 1.57 bps/Hz/Sector 1.59 bps/Hz/Sector (2x2) MIMO2 (2x2) MIMOUL Spectral Efficiency1 0.64 bps/Hz/Sector 0.99 bps/Hz/Sector (1x2) SIMO2 (1x2) SIMOMobility Support Target: Up to 350 km/hr Up to 120 km/hrFrame Size 1 millisec 5 millisecHARQ Incremental Redundancy Chase CombiningLink Budget Typically limited by Mobile Device Typically limited by Mobile DeviceAdvanced Antenna DL: 2x2, 2x4, 4x2, 4x4 DL: 2x2, 2x4, 4x2, 4x4Support UL: 1x2, 1x4, 2x2, 2x4 UL: 1x2, 1x4, 2x2, 2x4 1. Spectral efficiency is based on NGMN Alliance recommended evaluation methodology 2. Reference for LTE Spectral Efficiency: Motorola website, “LTE in Depth”. Prepared by: Syed Khurram Iqbal 11
  12. 12.  Release 2.0 is based on the IEEE 802.16m System Requirements Document 802.16m Mirrors IMT-Advanced Requirements  Key Performance Targets are: ▪ Increased DL peak channel & user data rate ▪ Increased UL peak channel & user data rate ▪ 2x DL spectral efficiency of Release 1.0 (2.6 bps/Hz) ▪ 2x cell-edge DL user throughput of Release 1.0 (0.09 bps/Hz) ▪ 2x UL spectral efficiency of Release 1.0 (1.3 bps/Hz) ▪ 2x cell-edge UL user throughput of Release 1.0 (0.05 bps/Hz) ▪ Reduction of the connection setup, RAN delay, & handover interruption time ▪ >60 concurrent sessions per MHz per sector for the AMR 12.2 kbps speech codec ▪ Multi-Carrier support for contiguous or non-contiguous channels (up to 100 MHz operating BW with band aggregation) ▪ Mobility support up to 500 km/hr Mobile WiMAX Rel 2.0 is backwards compatible with Rel 1.5 and Rel 1.0 Prepared by: Syed Khurram Iqbal 12
  13. 13. Average Spectral Efficiency 2008 2010 2011 2010 3.0 2.5 2.0 bps/Hz/Sector 1.5 DL 1.0 UL 0.5 0.0 Rel 1.0 Rel 1.5 Rel 2.0 LTE . Mobile WiMAX Spectral efficiency has an impact on the business case Lowers deployment cost per Megabit Adds channel capacity to support new value-added services for increased operator revenues Prepared by: Syed Khurram Iqbal 13
  14. 14. Mobile WiMAX Rel 1.0 Rel 1.5 Rel 2.0 802.16e-2005 802.16e Rev 2 802.16m IP e2e Network3GPP IMT- HSPA HSPA+ Advanced Rel-6 Rel-7 & Rel-8 Ckt Switched Network LTE & LTE Advanced IP e2e Network Mobile WiMAX time to market advantage CDMA-Based OFDMA-Based 2008 2009 2010 2011 2012 Prepared by: Syed Khurram Iqbal 14
  15. 15. Radio Access Network Core Network Backhaul Network 2G, 3G, GSM, 2G, 3G, Core T1,E1s EVDO, HSPA Network Next Generation All-IP Core Access Network Increased Network Data Overlay or Replacement BH Capacity LTE or WiMAXComparable CAPEX for WiMAX Conversion to all-IP core & increased today or LTE in 2+ years. backhaul capacity required in either case Both require new spectrum Prepared by: Syed Khurram Iqbal 15
  16. 16.  Mobile WiMAX has significant time-to-market advantage  100+ Certified client devices by year-end 2008  1000+ Certified client devices expected by 2011  WiMAX Rel 1.0 being deployed today, LTE specification not expected until end of 2008 WiMAX has friendly Intellectual Property Environment  IPR distributed amongst many companies, not just a few  Open patent alliance established  Lower costs for WiMAX/WiFi client devices Mobile WiMAX provides a simple, all-IP flat network, with all IETF protocols  LTE network is a more complex multi-layer network burdened with proprietary 3G cellular protocols Prepared by: Syed Khurram Iqbal 16
  17. 17. LTE/SAE User Plane & Data Flow Application Multiple layers, Many nodes and proprietary protocols e.g. IP, e.g. IP, PPP PPP Relay Relay PDCP PDCP GTP - U GTP - U GTP - U GTP - U RLC RLC UDP/IP UDP/IP UDP/IP UDP/IP MAC MAC L2 L2 L2 L2 L1 L1 L1 L1 L1 L1 LTE-Uu S1-U SGi UE/MS E-UTRAN Serving GW S5 PDN GW Mobile WiMAX User Plane & Data Flow Based on simple IETF protocols, Fewer nodes & fewer device requirements, Optimized for high speed dataSource: LTE/SAE: 3GPP, Mobile WiMAX: WiMAX Forum Network Specification Release 1.0 Prepared by: Syed Khurram Iqbal 17
  18. 18. Mobile WiMAX and LTE are both accepted as candidates to meet IMT-Advanced performance goals IMT-Advanced specifications not yet fully defined IEEE 802.16m will mirror IMT-Advanced requirementsMobile WiMAX Rel 1.5 and LTE have comparable performance Both use OFDMA in the DL with higher order modulation and coding Peak performance is similar for same modulation and code rate Both support FDD and TDD with channel BWs up to 20 MHz Both support higher order MIMO antenna solutions Both offer reduced latency But Mobile WiMAX has ~2 year time lead and a… A flat e2e network architecture optimized for high speed dataThroughput & spectral efficiency target for Mobile WiMAX Rel 2.0 will further enhance key performance parameters Mobile WiMAX Rel 2.0 is backwards compatible with Rel 1.0 & Rel 1.5Comparable investment to upgrade 2G/3G network to LTE or Mobile WiMAX New spectrum required for either LTE or WiMAX to support wider channel BW Multi-Band/Multi-Mode subscriber devices required in either case for internetwork connectivity and global roaming Upgrade to Mobile WiMAX provides operators a significant time-to-market advantage Prepared by: Syed Khurram Iqbal 18
  19. 19. Net Throughput per Channel/Sector Comparison • 3GPP HSPA Rev 6: 16 Evolution of WCDMA 14 12 • 3GPP2 EV-DO Rev B:. 10 Evolution of CDMA2000Mbps DL 8 UL 6 4 2 • Performance Projections Based 0 DL/UL=1/1 DL/UL=3/1 on EV-DV Methodology 3xEVDO Rev B HSPA Rel-6 Mobile WiMAX Rel 1.0 2x5 MHz FDD Channels 1x10 MHz TDD Channel Spectral Efficiency Comparison 2.5 . 2.0 Notes: 1.5 bps/Hz DL 1. EV-DV Methodology differs from 1.0 UL NGMN Alliance Methodology 0.5 2. Reference: “Mobile WiMAX – Part II: 0.0 A Comparative Analysis”, May 2006, DL/UL=1/1 DL/UL=3/1 WiMAX Forum website, 3xEVDO Rev B HSPA Rel-6 Mobile WiMAX Rel 1.0 2x5 MHz FDD Channels 1x10 MHz TDD Channel Prepared by: Syed Khurram Iqbal 19