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LTE Advanced HetNet Benefits!
 

LTE Advanced HetNet Benefits!

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Qualcomm Webinar presentation Experience Real World LTE Advanced HetNet Benefits!

Qualcomm Webinar presentation Experience Real World LTE Advanced HetNet Benefits!

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    LTE Advanced HetNet Benefits! LTE Advanced HetNet Benefits! Presentation Transcript

    • LTE Advanced August 20111
    • 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
    • LTE Has Strong Commitments LTE MULTIMODE LAUNCHED LAUNCHES OPERATORS INVESTING LTE TDD GAINING MOMENTUM TRIALS QUALCOMM MOBILITY FIELD TRIAL GROWING DEVICE ECOSYSTEM DEVICES VENDORS3 Source: www.gsacom.com, Jun’11
    • Qualcomm is a Leader in Research, Standards and Chipsets COMMITTED TO CONTINUED LTE EVOLUTION  Standards Leadership  Industry First Demos  Industry First LTE/3G  A Main contributor to key  MWC 2011: Live Heterogeneous Multimode Chipsets LTE Advanced features Network Demo  Commercial launch 4Q 2010  Major contributor for ITU IMT- Advanced submission Screenshot from the HetNet demo, showing range expansion of Picocells, within one macrocell4
    • LTE Advanced—The Global 4G Solution LTE Advanced Small Cells Provide Next Performance Leap Bring the network closer to user and leverage a Heterogeneous network topology LTE Advanced Makes The Leap Bigger It’s not just about adding small cells—need advanced interference management Higher Capacity & Enhanced User Experience Higher network capacity, better macro offload and higher data rates for all users Qualcomm: LTE Advanced Leadership Over-the-Air prototype network, design and standards leadership 5Heterogeneous Networks/HetNets: macro network with added small cells like picocells
    • 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
    • Small Cells Will Provide The Next Leap In Performance Bring network closer to users and leverage Hetnets1—add small cells— for next leap in performance Different dimension of improvement: adding small cells like picos and femtos and mitigate interference Radio link approaching theoretical limit Evolved 3G (EV-DO Rev. B & HSPA+) Next Generation Data optimized 3G Leap LTE (EV-DO & HSPA) (OFDMA) 3G (IMT-2000): Voice & Data Next Generation (e.g. CDMA2000 1X & WCDMA) Leap 2G: Voice Capacity Next Generation (Digital e.g. GSM & IS-95) Leap 1G: Voice (Analog e.g. AMPS)7 1Leveraging heterogeneous network topology: macro network with added small cells like picocells and femtocells
    • LTE Advanced Brings Different Dimensions of Improvements—Most Gain From HetNets Leverage wider Primarily higher bandwidth data rates Carrier aggregation across (bps) multiple carriers and multiple bands Leverage more radio Higher spectral links, more antennas efficiency Downlink MIMO up to 8x8, enhanced (bps/Hz) Multi User MIMO and uplink MIMO up to 4x4 Leverage heterogeneous Higher spectralnetwork topology (HetNet) efficiency per With advanced interference management coverage area (low power picocells with adaptive resource partitioning (bps/Hz/km2) and advanced receiver based devices)8
    • 2.2X LTE Advanced Hetnets Higher Capacity, Enhanced User Experience, User Fairness MEDIAN DATA RATE It’s not just about adding small cells —LTE Advanced makes the leap bigger19 1By applying advanced interference management to HetNets
    • Increased Network Capacity and Enhanced User Experience 2.2X with Range Expansion LTE Advanced 1.2X LTE R8 LTE R8 1X Picocell Macro Macro+ Macro+ Picocell Only Picos Picos Data Rate Improvement Picocell Median downlink data rate1 Range Expansion BETTER UTILIZATION OF SMALL CELLS 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. Advanced interference management: enhanced time-domain adaptive resource partitioning, advanced receiver devices with enhanced RRM and RLM10 1Similar gain for the uplink
    • Range Expansion Allows More Users to Benefit From Small Cells SIGNIFICANTLY BETTER MACRO OFFLOAD Percentage of pico users1 RANGE EXPANSION LTE R8 Range Expansion 82% 57% 37% Small Cell 26% 12% 6% Enabled By: 1) Adaptive Resource Partitioning1 2 4 10 2) Advanced Receiver Devices with Interference Cancellation Number of Picos per Macro cell Assumptions: TR 36.814, Macro ISD=500m, 100 antenna downtilt 25 UEs per Macro cell, uniform random layout, 10 MHz FDD, 2x2 MIMO. 1And enhanced RRM and RLM to allow handover to weak cells, to maintain reliable link with weak cells, and to provide accurate feedback with resource partitioning. Standards name eICIC:11 Enhanced inter-cell interference coordination 1For uniform, random user distribution
    • Ensures Ubiquitous Broadband Experience EVEN WHEN SMALL CELLS CANNOT BE PLACED AT OPTIMAL LOCATION 78% with Range Expansion with Range Expansion 1.7X LTE Advanced LTE Advanced 1.05X 38% LTE R8 LTE R8 1X LTE R8 Picocell LTE R8 22% Picocell Macro Macro+ Macro+ Macro Macro+ Macro+ Only Picos Picos Only Picos Picos IMPROVES ‘WORST’ SIGNIFICANTLY HIGHER Picocell CELL EDGE USER1 % OF USERS WITH >1 Mbps 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, 2512 users and 500m ISD . Worst user is defined as 5 percentile user, typically the Cell edge user 1Typically cell edge users, similar gain experienced for the uplink
    • Adaptive Interference Management Adapts to Network Changes And Actual Network Load Adapts to typically uneven load that changes with time and location Heavy Load Medium Load Light LoadAdapts to added nodes, like Picocells Provides network load balancing Benefits all Hetnets—but necessary for dense HetNets13 1Advanced adaptive interference management : enhanced time-domain adaptive resource partitioning with enhanced RRM/RLM and advanced receiver devices
    • THE SECRET SAUCE: ENABLES RANGE EXPANSION THAT ALLOWS MORE USERS TO BENEFIT FROM SMALL CELLS ADAPTIVE ADVANCED FULL RESOURCE RECEIVER BACKWARD PARTITIONING DEVICES COMPATIBILITY114 1With almost blank subframes
    • Adaptive Resource Partitioning: TIME MACRO MACRO MACRO PICOS PICOS PICOS15
    • ADVANCED RECEIVERS DEVICES WITH INTERFERENCE CANCELLATION (CANCELLING OVERHEAD CHANNELS1) TO DISCOVER TO ENABLE HIGHER TO ENABLE FULL SMALL CELLS DATA RATES RANGE EXPANSION16 1Device interference cancellation cancels overhead channels such as such as synch, broadcast and common reference signal(CRS)
    • Today: Our Testbed Tomorrow: Your Network17
    • Qualcomm’s LTE Advanced Testbed  Over-The-Air HetNet  Live since March 2011  Multiple macrocells and picocells in a co-channel deployment  Demonstrating e.g. pico discovery and range expansion with mobility Evaluating the design and features EVALUATING THE DESIGN AND FEATURES TO REALIZE to realize the full benefits of heterogeneous networks18 FULL BENEFITS OF HETEROGENEOUS NETWORKS
    • LTE Advanced in Action—OTA HetNet HERE DEMONSTRATING PICOCELL DISCOVERY AND MACRO OFFLOAD Macro Van Pico Van Pico LTE Advanced device discovers close pico—gets ~15Mbps. LTE Advanced and Rel-8 Rel-8 Device cannot discover pico, devices served by macro. still served by Macro—but now gets Both gets ~7Mbps. ~ 16Mbps thanks to macro offload.19
    • LTE Carrier #3 LEVERAGE WIDER LTE Carrier #1 Aggregated PRIMARILY HIGHER LTE Up to BANDWIDTH Carrier #4 LTE Data Pipe 100 MHz DATA RATES Carrier aggregation across Carrier #2 (bps) multiple carriers and multiple bands LTE Carrier #5 CARRIER AGGREGATION ENHANCES USER HIGHER PEAK AND LEVERAGES ALL EXPERIENCE USER DATA RATES SPECTRUM ASSETS (OVER 1 GBPS POSSIBLE)20
    • Qualcomm: Continued Standards Leadership  A leading contributor for LTE performance definition in 20091  Leader in several key LTE standards areas2  A Main contributor to key LTE Advanced features  Carrier aggregation, self-organizing network, relay, waveform  Major contributor for ITU IMT-Advanced submission  First company to show results satisfying IMT-Advanced requirements3  LTE Rel-10 HetNet work item completed June 2011  Enhanced inter-cell interference coordination (eICIC) work item completed in Rel-10  Additional eICIC enhancement considered for Rel-11 Notes 1Based on pre-meeting contribution count for 3GPP RAN WG4 (in charge of performance requirements) . 2E.g. for femtocells and positioning across all working groups and areas. Examples of features such as Mobility, access control, local IP access, system definition, security . 3for single point transmission results, also showed that that21 Network-MIMO/CoMP techniques were not required to satisfy those requirements.
    • Common LTE FDD & TDD Chipset Platform MODEMS & DATA CARDS SMARTPHONES & TABLETS • 50+ designs by 25+ OEMs • Dual-Core CPU (28nm) MDM 9200 • Commercial 4Q 2010 MSM 8960 • Superior graphics & multimedia LTE • 100 Mbps DL/50 Mbps UL LTE • Integrated connectivity (WLAN, GPS, MDM 9600 DC-HSPA+ DC-HSPA+/DOrB Bluetooth, FM) LTE EDGE EDGE DC-HSPA+/DOrB • MSM8960 launches in 2012 EDGE • Handset & tablet launches in 2011 based on MDM9x00+MSM Industry’s First LTE/3G Multimode Chipsets22
    • Qualcomm: LTE Advanced Leadership IT’S NOT JUST ABOUT ADDING SMALL CELLS —LTE ADVANCED REALIZES FULL BENEFITS OF HETNETS Significantly higher capacity (Range expansion) Enhanced user experience Better macro offload Ensures user fairness A Leading Contributor Spearheading State-of-the-Art to LTE Advanced Technology LTE Advanced Standards Design Efforts OTA Network23 Heterogeneous Networks /HetNets: macro network with added small cells like picocells
    • Questions? Connect with Us www.qualcomm.com/technology @qualcomm_tech m.qualcomm.com/technology http://www.qualcomm.com/blog /contributors/prakash-sangam24
    • Thank You25