/ 3GPP2-Rev C : Future Mobile Broadband Access Solution

Transcription

1 / 3GPP2-Rev C : Future Mobile Broadband Access Solution PAGE 1 1

2 Access to Content: The Right Technology For Each Application Mobile Broadcast GPS Computing Portable devices Enterprise, home Productivity and entertainment Mobile WAN Mobile MAN Hot Spot Communications Handheld devices Ubiquitous connectivity Voice, messaging, camera, LBS Entertainment Fixed and mobile devices Rich content Video and audio , UWB, BT / 3GPP2-RevC 3G (EV-DO / HSPA) FLO DO-Platinum Content Sources Internet Enterprises 3G Operators Broadcasters PAGE 2 2

3 Mobile Broadband Vision 3G and Beyond CDMA2000, WCDMA, , FLO GPRS, WLAN DSP DSP Memory MPROC GPS 3D Graphics Video Audio Imaging WPAN WLAN (802.11n) Best Connected Service: Application-specific air interfaces New OFDM(A) Physical layers Common IP-based core network Integrated WAN / LAN services Multimode devices Relative Peak Rates Mobile WAN/MAN (Flash-OFDM, HSPA+, /3GPP2-Rev C, LTE) Mobile Broadcast (FLO) Relative Coverage PAGE 3 Data rates (vertical) and network coverage (horizontal) are illustrative only. Not drawn to scale. 3

4 3GPP2 Evolution Offers Industry Leading Mobile Broadband Capabilities CDMA CDMA/TDM All-IP Services Broadband Downloads OFDM OFDMA Advanced QoS - VoIP, VT, PTT Broadband Uploads OFDM introduced for multicast Backward Compatible Multi-carrier Rev A (up to 5MHz *) Existing Spectrum Improved Peak, Avg & Cell Edge Data Rates Improved user experience (lower delays, consistent high data rates) S/W Upgrade Option Backward Compatible CDMA2000 1X CDMA2000 1xEV-DO EV-DO Rev. A EV-DO Rev. B** Rev. C / *** * Standard supports up to 20 MHz ** MIMO support I in B+ *** used for non-imt bands Highly optimized OFDMA solution Support for flat network architecture New/Vacant Spectrum for wider bandwidth (5-20 MHz) FDD and TDD modes Enhanced capacity with advanced MIMO and SDMA techniques Higher Avg and Peak Data Rates Multimode devices provide seamless migration PAGE Beyond

5 3GPP Evolution Roadmap CDMA CDMA/TDM Broadband Downloads Reduced Delays on DL Backward Compatible OFDMA Broadband Uploads Reduced end to end delays MBMS Backward Compatible Improvements to existing 5MHz carrier Existing Spectrum Increased capacity, data rates and reduced delay Enhanced Support for real-time services - VoIP, VT, PTT. Backward Compatible Rel-99 WCDMA Rel-5 HSDPA Rel-6 HSUPA Rel-7 (Ph 1) Rel-8 (Ph 2) HSPA+ (Evolution) LTE OFDMA Wider Bandwidths (5-20 MHz) New/Vacant Spectrum FDD and TDD modes Higher Data Rates Enhanced capacity with advanced MIMO Multimode devices provide seamless migration PAGE 5 Beyond

6 Mobile Broadband Overview Strengths of CDMA and OFDMA CDMA Performance in low SNR conditions (e.g., cell edge) Mature intersector interference management Robust mobility, power efficiency, QoS, etc. OFDMA Performance in high SNR conditions (e.g., microcell) Immunity to multipath, & intrasector interference Low complexity for wide radio channels and MIMO OFDM(A) Application Examples Broadcast WLAN / PAN Fixed WAN Mobile MAN/WAN FLO Digital Video Broadcasting (DVB) Digital Audio Broadcasting (DAB) a, g n Ultrawideband (UWB) (Fixed WiMAX) Other Proprietary Flash-OFDM , e 3GPP2 Phase 2, 3GPP Long Term Evolution Advanced CDMA and OFDMA systems can have comparable spectral efficiency / 3GPP2-Rev C leverage complementary strengths of OFDMA and CDMA PAGE 6 6

7 700 Million People Have Access to 55+ Mobile Broadband Networks* Today! Over 38 Million Broadband Subscribers* *Aug 2006: DO: 41+ operators and HSDPA: 16 operators PAGE 7 7

8 Over 200 DO & HSDPA Mobile Broadband Devices Dell Latitude D620 / D820 Lenovo Thinkpad T60 / Z60 HP Compaq nc LTE In 2006, there are over 50 available options for embedded laptops or PC Cards Dell Latitude PAGE 8 8

9 Mobile Broadband Promotions Priced from $20 to $80 Slovakia: 2Gb of Data for $20 Month PAGE 9 9

10 3G Eco System Over 1,000 3G Devices NOKIA Complete list available at: PAGE 10 10

11 DO & HSPA Subscriber Forecast 500 Worldwide Subscriber Forecast by Technology ( ) WCDMA (includes HSDPA, HSUPA, etc.) 400 1xEV-DO (includes Rev A, Rev B, etc.) Fixed & Mobile WiMAX (Subscribers in Millions) Note: 1xEV-DO forecast does not include 1X-only subscribers Sources: 1. WCDMA & CDMA2000 1xEV-DO: Blended forecast from Strategy Analytics (Jan 06), Yankee Group (Mar 06), ABI (Dec 05), Informa (Mar 06), Forward Concepts (Apr 05), Gartner (Dec 05), IDC (Feb 06), igr (Jun 05), In-Stat (Jun 05), Ovum (Mar 06), Signals Research (Sep 05), and Shosteck Group (Jun 05) 2. WiMAX: Blended forecast from Strategy Analytics (Jan 06) and Gartner PAGE 11(Nov 05) 11

12 / 3GPP2-Rev C Technology PAGE 12 12

13 Rev C: Technology Advantages Leveraging the 3GPP2 Eco-system, Rev C provides a highly efficient mobile broadband solution as a longer term evolution o IEEE is the basis for 3GPP2/RevC technology o Efficient packet based OFDMA air interface o Optimized for Mobile Broadband Internet and Real time services Designed to support both TDD and FDD modes with advanced processing features o Scalable design with fine channel bandwidth granularity within MHz o In licensed spectrum below 3.5 GHz Combines mature mobility management algorithms of CDMA with complexity/performance benefits of OFDMA o Designed ground-up for mobility scenarios o Advanced support for spatial processing techniques: Beamforming, MIMO and SDMA PAGE 13 13

14 Rev C: Optimized OFDMA Design with Advanced System Features Flexible airlink resource management Efficient, low-overhead signaling Advanced interference management Distributed power control for tight management of other cell interference Fractional frequency re-use for cell edge performance Frequency hopping modes to enhance signal diversity Advanced support for adaptive multiple antenna techniques Spatial Multiplexing MIMO Beam forming MIMO and Spatial Division Multiple Access (SDMA) High Spectral Efficiency Turbo coding High order modulation Sub-band Scheduling PAGE 14 14

15 Rev C: Mature Mobility Support Robust Handoff Mechanism Provides seamless connectivity as terminals move from one cell to another Handoff design robust under FL/RL link imbalance Fast sector selection using uplink CDMA control channels Quasi orthogonal Reverse Link Uses non-orthogonal transmission with multiple receive antenna Capacities scale linearly with the number of receive antennas at the access point Co-existence with other wireless technologies (3G & Non-3G) Support multi-mode terminals Provides techniques for terminals to handoff to and from other systems PAGE 15 15

16 / 3GPP2-Rev C Expected Performance PAGE 16 16

17 Rev C: Performance Advantages Spectral efficiencies and sustained user data rates significantly higher than other emerging mobile systems o Peak spectral efficiency of 13 bps/hz o Short retransmission latency: approximately 5.5ms on Forward and Reverse Link Stellar Performance with VoIP Capacity o Supports more than 320 VoIP users in 5 MHz BW o Mobile WiMAX VoIP capacity in 5 MHz is estimated to be less than 40 users Outperforms Mobile WiMAX significantly o Rev C DL Spectral Efficiency is 2x better than Mobile WiMAX o Rev C UL Spectral efficiency is 2x better than Mobile WiMAX o Rev C shows a far superior performance in handling mixed traffic mobile broadband applications (FTP, HTTP, NRTV and VoIP) o Shows an advantage of 3x times higher capacity of active users in all traffic modes PAGE 17 17

18 Rev C: Expected Data Performance FDD, BW per link TDD 2:1, total BW 10 MHz 20 MHz 10 MHz 20 MHz Peak Forward Data Rate (1) Peak Reverse Data Rate Forward Average Sector Throughput (2) Reverse Average Sector Throughput (3) Forward Spectral Efficiency (estimate) (2) Reverse Spectral Efficiency (estimate)(3) ~2.2 bps/hz ~2.3 bps/hz ~1.3 bps/hz ~1.0 bps/hz All data rates in Mbps, except where indicated 1 FL peak data rates based on 4x4 MIMO 2 FL throughput and Spec Efficiency is estimated based on 4x4 MIMO at vehicular speed 120 km/h, TDD DL/UL partitioning assumed to be 2:1. 3 RL throughput and Spec Efficiency is based on 4 Rx BS antennas at vehicular speed 120 km/h. TDD DL/UL partitioning assumed to be 2:1. PAGE 18 18

19 Mobile WiMAX Performance with Real Time Applications Sector DL Throughput (kbps) 0 VoIP 10 VoIP 25 VoIP 40 VoIP 55 VoIP / Rev C DL Throughput e DL Throughput / Rev C Advantage 2 x 2.5 x 4 x 10 x 25 x Extensive simulations have shown Mobile WiMAX performance is weak in catering to Real Time Applications WiMAX throughput drops by more than 50% in full buffer throughput as the number of VoIP users increase from 0 to / Rev C maintains a relatively constant throughput with the increase of VoIP users Findings show that WiMAX voice outage is greater than 6% even with 25 VoIP users WiMAX with 55 VoIP55 users, Voice latency outage is found to exceed 30%!! Analysis shows that WiMAX, with just 10 VoIP calls, full buffer throughput PAGE is 19 dramatically impacted 19

20 Mobile WiMAX Performance Assessment Mobile WiMAX overstates performance by 2x to 3x The 2 to 4Mbps downlink claim requires 10MHz of spectrum and is likely to deliver the same speeds as DO Rev A or FLASH-OFDM but only by using 4x more spectrum WiMAX cell coverage at 2.5GHz is 50% less than marketing claims Requires more cell sites to cover the claimed coverage areas Direct impact on CapEx and OpEx WiMAX latency is higher than claimed Mobile WiMAX cannot effectively support more than 10 VoIP subscribers per without using the majority of the available capacity CDMA DO Rev A and FLASH-OFDM have a 4x advantage at 25 VoIP users VoIP is only for fixed deployment (Aug 17 research note) WiMAX for commercial mobile networks is untested and in the early stages of wireless evolution for mobility Early tests in South Korea shows average DL rates well below 1Mbps Low battery life and high cost for PC cards ($230) The net analysis shows that WiMAX will deliver the same subscriber throughput as DO Rev 0 today, but by using 4x more spectrum and PAGE 20 with less than 50% of the DO coverage 20

21 Conclusions Ongoing 3G evolution ensures a long term competitive advantage for 3G operators by enabling ubiquitous mobile broadband service with massive economics of scale / Rev C can complement 3G as a compelling overlay to address hot-zone and dense WMAN areas using large spectrum allocations and supports tight integration with 3G operators Large technical advantages in coverage and capacity on / Rev C solution, with far more cost effective than Mobile WiMAX solution in all scenarios PAGE 21 21

22 Thank you