How to meet data demand?


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How to meet data demand?

  1. 1. How to meet data demand? June 20111
  2. 2. The Biggest Platform in the History of Mankind ~5.5 BILLION WIRELESS SUBSCRIPTIONS WORLDWIDE ~1.3B ~3.1B 3G SUBSCRIPTIONS 3G SUBSCRIPTIONS AS OF 1Q 2011 BY 20152 Source: Wireless Intelligence estimates as of Apr 18,2011 for the quarter ending Mar 31, 2010
  3. 3. Evolved 3G Will Continue to Lead Mobile Broadband Subscriptions (Millions) 2,500 2,000 HSPA Family HSPA/HSPA+ Subs EV-DO Family 1,500 TD-SCDMA 1,000 LTE EV-DO 500 Subs WiMax 0 2010 2011 2012 2013 2014 2015 3G* MBB subscriptions to surpass 1B by 2012 Note:* 3G includes EV-DO family, HSPA family and TD-SCDMA,3 Source: HSPA, EV-DO ,TD-SCDMA and LTE subs – Wireless Intelligence (Apr’11) and WiMax - ABI (Mar’11)
  4. 4. Operators Worldwide Show Strong Data Growth 27% Growth 24% Growth 22% Growth 24% Growth $5.5B $5.1B £1.32B £1.04B $477M $4. 5B $4.1B $383M Dec’09 Dec’10 1H’10/Dec’09 1H’11/ Dec’10 1Q’10 1Q’11 1Q’10 1Q’11 Data Revenues (British £) Mobile Broadband Data Data Revenues (US $) Data Revenues (US $) Revenues (Australian $)4 Sources: Company reports from Vodafone, Telstra, Verizon and AT&T
  5. 5. Addressing Data Demand Growth  Evolve 3G and leverage advanced receivers  Increase voice capacity to free up resources for data  Free up 2G spectrum for more efficient 3G  Boost data capacity with LTE for new and wider spectrum  Bring network closer to the user—add small cells like femtocells5
  6. 6. Qualcomm is a Leader in 3G and 4G 2011 2012 2013 2014+ CDMA2000 1X 1X Advanced SIMULTANEOUS 1X VOICE AND EV-DO/LTE DATA (SVDO/SVLTE) Rev A Multicarrier H/W Upgrade EV-DO EV-DO Rev. B DO Advanced (Commercial) Rel-7 Rel-8 Rel-9 Rel-10 Rel-11 & Beyond HSPA HSPA+ HSPA+ HSPA+ (Commercial) (Future) Advanced Rel-8 Rel-9 Rel-10 Rel-11 & Beyond LTE Leverages new, wider LTE LTE and unpaired spectrum (Commercial) LTE (LTE TDD expected to be (Future) Advanced commercial end 2011) Commercial6 Note: Estimated commercial dates. Created 06/20/2011
  7. 7. Evolve 3G and Leverage Advanced Receivers7
  8. 8. Significant Capacity Gain by Evolving 3G and Leveraging Advanced Receivers DOWNLINK UPLINK ~1.8x Capacity Gain ~1.7 Capacity Gain ~70% ~50% ~80% EV-DO EV-DO Rel. 0 EV-DO Rev. A Rel. 0 + 2-Rx Diversity + Equalizer EV-DO EV-DO EV-DO Rev. A Rel. 0 Rev. A + BTS IC1 HSPA+ HSPA+ 1.8x 1.7x (6.2 Mbps) (3.7 HSPA HSPA Mbps) 1x 1x (3.5 Mbps) (2.2 Mbps) R6 R7 R6 R7 (2-RxDiv+ Rake) (Equalizer (Rake+1x2 SIMO (IC1 +1x2 SIMO) + 2x2 MIMO) 1Base Station interference cancellation is available for EV-DO (CSM 6850). Many HSPA+ vendors have announced NodeB IC support. Device Equalizers are commercially available8
  9. 9. Similar Evolved 3G and LTE Performance WHEN ALSO LEVERAGING ADVANCED RECEIVERS SIMILAR SPECTRAL EFFICIENCY SIMILAR PEAK DATA RATES with same number of antennas and bandwidth with same bandwidth and number of antennas (Downlink sector capacity in 10 MHz FDD)1 (Downlink peak data rate) Bandwidth HSPA+ LTE LTE HSPA+ 5 MHz 42 Mbps 37 Mbps 1.2x 10 MHz 84 Mbps 73 Mbps 1x (15.1 Mbps) (12.5 Mbps) 20 MHz 168 Mbps2 150 Mbps Note: Assuming 2x2MIMO. LTE supports 4x4MIMO but initial deployments will be 2x2 MIMO. LTE takes required overhead into account, 172 Mbps possible per standards SIMILAR RTT LATENCY Transport NW key for low latency—can be same for LTE&HSPA+ R7 LTE R8 HSPA+ LTE (EQ.+ 2x2 MIMO) (2x2 MIMO) RT T3 28 ms + 22 ms + Transport network Transport network Note: HSPA+ spectral efficiency would improve with multicarrier. 1 Source: Qualcomm Simulation, details in 3GPP R1-070674. NGMN 500m ISD, HSPA+ R7 results scaled up from 10 MHz. HSPA+. HSPA+ multicarrier (R8 and beyond) and DL Interference Cancellation not considered and would narrow the gap with LTE. 2168 Mbps in 20Mhz beyond HSPA+ R9. 3Source: Qualcomm assuming similar operating points, processing9 delays, excludes transport network delay that is dependent on actual network used
  10. 10. Continued Improved Connection Capacity and User Experience—Meeting Smartphone Growth HSPA+: ENHANCED CELL_FACH/PCH AND CPC DO ADVANCED: ENHANCED CONNECTION MANAGEMENT HIGHER CONNECTION-CAPACITY BETTER USER EXPERIENCE  Supports more interactive users such as  Improved “Always ON” experience “push-pull” mobile email  Improved battery life  More efficient use/higher capacity of paging and access channels10
  11. 11. Increase Voice Capacity to Free up Resources for Data11
  12. 12. 1X Advanced: up to 4x Increase Compared to CDMA2000’s Excellent Capacity 1X Advanced 4x CDMA2000 3x Voice users Voice users Achievable Today 1.5x x Voice users Single Mobile Voice users Antenna Rx Diversity EVRC EVRC-B (4GVTM) BTS IC + Adv. QLIC Single RX QLIC (device IC) Radio Link Enhancements New handset New handset and new channel card Network upgrades FREED-UP SPECTRUM CAN BE USED FOR EV-DO DATA CDMA2000 1X 1X Adv EV-DO12
  13. 13. Voice over HSPA Frees Up Resources for Data MORE THAN DOUBLES VOICE CAPACITY FREES UP RESOURCES FOR DATA UP TO 50% EXTENDED TALK TIME (Kbps) CS voice over HSPA12 No impact on VoIP over core network HSPA23 Requires Remaining Data Data capacity with IMS Voice over HSPA capacity with CS Voice WCDMA CS 5 & VoIP Voice Downlink data throughout vs. voice users Voice over HSPA is either CS voice over HSPA or VoIP over HSPA 1 Network support for “CS over HS” in HSPA+ R8, but UE capability in R7 enabling early implementation. 2Enhanced mobility, E-SCC is part of R8 and required for high capacity voice over HSPA. 3The R8 feature VCC enables call continuity outside VoIP coverage. Source: QUALCOMM simulations for VoIP, 3GPP Channel Mix 1km inter-site distance and AMR 12.2 Kbps codec. HSPA+ includes NodeB13 IC. CS voice over HSPA would result in 15 %to 20% lower capacity.
  14. 14. Free up 2G Spectrum for More Efficient 3G14
  15. 15. Multicarrier Helps to Free Up 2G Spectrum for More Efficient 3G UMTS900 ALMOST CLOSES 2G COVERAGE GAP—ELIMINATES 3G POROSITY ADDITIONAL 2G BANDS SUCH AS 1800MHz SUITABLE FOR 3G REFARMING UMTS900 ENABLED DEVICES >50% OF MONTHLY SALES IN EU51 HSPA+ MULTICARRIER ACROSS BANDS—ANOTHER DRIVER FOR 900 AND 1800 MHz Aggregated Data Pipe High band E.g. 2.1/1.9/1.8 GHz Carrier 1 1 to 3 Carriers FDD Band Carrier 2 2x downlink in R8 Across Bands R9 Up to 20 Low band 4x downlink in R10 MHz E.g. 900/850 MHz Carrier 3 1 to 2 Carriers Carrier 4 Multicarrier HSPA+ Device FDD Band Across bands in R9 4x downlink in R10115 1Source: GFK. 2Multicarrier across bands supported in 3GPP R9
  16. 16. Leverage Unpaired Spectrum for More Downlink Capacity  Supplemental downlink addresses traffic asymmetry  Implemented using HSPA+ R9 carrier aggregation1 Supplemental FDD FDD Downlink Downlink Uplink (Unpaired spectrum) (Paired, e.g., 2GHz) (Paired, e.g., 2GHz) F1’ F1 F1 L-Band (1.4GHz) key opportunity • Harmonization possible in Europe and beyond, with up to 40 MHz of unpaired spectrum2 • Other opportunities, such as 700MHz in the US, depend upon country-specific spectrum situations 1Aggregation across bands already supported in 3GPP R9, but each additional band combination has to be defined in 3GPP.16 2L-Band in Europe:1452 MHZ to 1492 MHz.
  17. 17. Boost Data Capacity with LTE for New and Wider Spectrum17
  18. 18. LTE Leverages New Wider Spectrum to Boost Data Capacity Available in smaller Best suited to leverage bandwidths new and wider contiguous spectrum 1.4 3 MHz 5 MHz MHz 10 MHz 15 MHz 20 MHz LTE relative performance decreases with bandwidth due to higher overhead; 40% overhead in 1.4 MHz vs. 25% in 20 MHz results in 25% better relative performance in 20 MHz vs. 1.4 MHz. LTE/3G Multimode Industry’s first LTE multimode solutions LTE (FDD or TDD) 3G CoverageSeamless 3G service continuity from day one—Evolved 3G ensures similar user experience18
  19. 19. LTE TDD: The Global Solution for Unpaired Spectrum  China and India to deploy LTE TDD GLOBAL TDD Spectrum Potential Spectrum  Strong industry support1 2.5/2.6 GHz (IMT Extension gap) 50 MHz B383: 2570 MHz to 2620 MHz  Leverages LTE FDD 2.3 GHz 100 MHz B404: 2300 MHz to 2400 MHz  Shares most of FDD design and standard 3IMT extension band provides 50 MHz TDD in addition to 70 MHz + 70 MHz FDD in most countries. 2B40 will e.g. be used for India and China, can  Common core network provide up to 100 MHz, but less spectrum may be available in some markets. LTE TDD operator trials in 2010, commercial launches in 20112 LTE TDD LTE TDD Multimode Trials Commercial Launches LTE FDD LTE FDD Multimode Single Mode Commercial Launches 3G Evolution (HSPA/HSPA+, EV-DO Rev. A/B , 1X/DO Advanced) 2010 2011 2012+ 1Basically all vendors offering LTE TDD, WiMAX industry support declining: Clearwire announced LTE trials in press release Aug 4th 2010. Russia’s Yota announced19 plans to drop WiMAX in favor of LTE in some markets. 2Single mode LTE TDD trials 2H2010, multimode trials 1H 2011 and commercial multimode launch end 2011
  20. 20. Bring Network Closer to User for Next Significant Performance Leap IT IS NOT JUST ABOUT ADDING SMALL CELLS—OPTIMIZATIONS FURTHER IMPROVE PERFORMANCE: HSPA+ and EV-DO and DO LTE Advanced HSPA+ Advanced Advanced20
  21. 21. Radio Link Improvement is Slowing, What Is Next? Bring network closer to user—adding Radio Link small cells1—and mitigate interference approaching will provide next leap in performance the theoretical limit Evolved 3G Evolved 3G with Advanced Receivers (EV-DO Rev. B & HSPA+) Next Gen. LTE Data optimized 3G Leap (OFDMA) (EV-DO & HSPA) Relative Capacity Multiples 3G 3G (IMT-2000): Voice & Data (e.g. CDMA2000 1X & WCDMA) Next Gen. Leap 2G 2G: Voice Capacity (Digital e.g. GSM & IS-95) Next Generation Leap 1G: Voice 1G (Analog e.g. AMPS)21 1Leveraging heterogeneous network topology: macro network with added small cells like picocells and femtocells
  22. 22. Adding Small Cells Is a Great Start— Optimization Further Improves Performance Macro provides wide coverage Remote  Optimizations to Further Radio heads Increase Performance User Deployed Such as range expansion—better utilization of picocells Femtocells Increased cooperation across nodes Operator deployed Innovative Iiterference management required for femtocells Relays  Smart Network Techniques Exploiting uneven load—even more common in Hetnets Operator Deployed Picocells  Self-Organizing Networks (SON) Simplifying Hetnet deployments Bring Network Closer to User and Increase Spectral Efficiency per Coverage Area122 1Leveraging heterogeneous network topology (Hetnets): macro network with added small cells like picocells and femtocells
  23. 23. Femtos Can Provide Next Performance Leap FEMTOS WORK WELL WITH INNOVATIVE INTERFERENCE MANAGEMENT 14.5 Mbps Example for HSPA+. Similar gain achieved for EV-DO Rev. A/B 80Y 390 kbps 1.5x 250 kbps 180 kbps X Y Home users Macro users Macro Femtos Macro Femtos only added served by only added served by macro 1) macro 2) femto MACRO NETWORK OFFLOADED—CAPACITY GAIN CAN EXCEED 10X Assumptions: Example for HSPA+. 16 Users per cell for dense urban HSPA+ system: 10 macro users and 6 home users served either by macrocell or added femto cells. Rx diversity and MMSE Equalizer used. The median user data rates are shown. Note: Also, the worst 10% of macro users get ~15% higher throughput with proper interference management techniques.23
  24. 24. DO Advanced Increases Hetnet Performance THROUGH SMART NETWORK TECHNIQUES NETWORK CAPACITY (DL) 3.3x 1.7x Macro x (1 carrier) Example: Improvement with Pico cell DO Advanced Pico cell deployment (2 carrier) Macro+ DO Advanced Macro Pico (Macro + Pico) INCREASED PERFORMANCE BY EXPLOITING UNEVEN NETWORK LOADING (SMART NETWORK TECHNIQUES) Source: Qualcomm simulations. assumes 1 single carrier macro, with 2 double carrier picocells. Pico-cells are randomly placed in the network.24 The data loading ratio of 4:1 between high-demand and low-demand areas
  25. 25. LTE Advanced Increases Network Capacity, User Experience and Ensures Fairness 2.2x LTE Advanced with range expansion 1.2x Picocell RANGE EXPANSION 1x Better utilization of small cells LTE LTE R8 R8 Picocell Macro Macro+ Macro+ Only Picos Picos Median User Picocell Downlink (similar uplink gain) ENSURES USER FAIRNESS Between users and between nodes Assumptions: 4 Picos per Macro randomly dropped within macro coverage, see 3GPP R1-101509. Based methodology in TR 36.814: 10 MHz FDD, 2x2 MIMO, 25 users and 500m ISD .25 Advanced interference management : enhanced time-domain adaptive resource partitioning, advanced receiver devices with enhanced RRM and RLM
  26. 26. Additional Solutions to Address Demand —Spectrum Is a Limited Resource PRIORITIZED DELIVERY BASED ON DIFFERENT CHARGING MODELS TRAFFIC/APPLICATION  Usage-based charging  Over-the-air prioritization  Application-based charging  New class for delay insensitive traffic: serve  Service classes only when resources become idle WIFI OFFLOAD—LEVERAGE OFFLOAD 3G WITH DEDICATED UNLICENSED SPECTRUM MULTICAST NETWORK  Today: application based switch of all IP traffic  Multicast complements 3G to reduce mass between 3G/WiFi market delivery cost  Future: seamless and selective offload  Push and cache for later on-demand viewing  Selected traffic, e.g. QoS services on 3G and (e.g. video and electronic media) best effort on Wi-Fi controlled by operator26
  27. 27. Summary: Addressing Data Demand Growth  Evolve 3G and leverage advanced receivers  Increase voice capacity to free up resources for data  Free up 2G spectrum for more efficient 3G  Boost data capacity with LTE for new and wider spectrum  Bring network closer to the user—add small cells like pico and femtocells  There are more solutions…  leveraging unlicensed spectrum—WIFI offload27
  28. 28. Questions? Connect with Us @qualcomm_tech /contributors/prakash-sangam28