HSPA+ Advanced - Enhancements beyond R10


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HSPA+ Advanced - Enhancements beyond R10

  1. 1. Welcome HSPA+ just keeps evolving, even more! • Thank you for joining us at this FierceLive! Webinar. We will begin momentarily. • The audio will be streamed live over the Internet, so please make sure your computer speakers or headphones are turned on and your volume is turned up. • During the presentations, you can submit your questions by filling in the “Ask a Question” box at the bottom of this screen. The speakers will answer questions at the end of the webinar. Enjoy the presentation!Sponsor:
  2. 2. HSPA+ Advanced HSPA+ enhancements beyond R10 Webinar January 27 20112
  3. 3. HSPA+ Advanced Webinar  Agenda  Presentation ~ 35min  HSPA+ Advanced  Covering five key areas  Q&A ~20min Exploiting uneven load3
  5. 5. Qualcomm is a Leader in HSPA+ Research, Standards and Chipsets COMMITTED TO CONTINUED HSPA+ EVOLUTION  Standards Leadership  Industry-First Demos  Industry-First Chipsets  Major 3GPP contributor on all  MWC 2007: Voice over HSPA HSPA+ features MDM MDM  MWC 2008: Dual-Carrier  Recognized expertise across all 8200 8220  MWC 2009: Dual-Carrier 42 Mbps HSPA+ DC-HSPA+ 3GPP groups  MWC 2010: Uplink Beamforming Launched Launched  MWC 2011: Multipoint (shown below ) Feb 2008 Aug 2010 and Supplemental downlink5 Actual screenshot from Multipoint Demo
  6. 6. HSPA+ Has A Strong Evolution Path More 5MHz Carriers (336+ Mbps) R11 and Beyond: HSPA+ Advanced • Expands HSPA+ to 40MHz deployments • Further leverages multiple antennas (UL MIMO/Beamforming) 168 Mbps • Exploits smart networks (multipoint ) and HetNet enhancements R10: 20 MHz Multicarrier • Expands HSPA+ to 20 MHz deployments • Evolution to femtocell networks 84 Mbps R9: Expands Dual-Carrier • 10 MHz Dual-Carrier in uplink 42 Mbps 46+ Mbps • Combination of MIMO and Dual-Carrier in downlink • Aggregation across spectrum bands • Femtocell enhancements: active mobility21- 28 Mbps R8: 10 MHz Dual-Carrier • Enhances broadband—doubled data rates to all users • Introduction of femtocell support 23 Mbps • Alleviates signaling traffic e.g., from Smartphones 11 Mbps Rel - 7 Rel - 8 Rel - 9 Rel - 10 Rel-11 and Beyond HSPA + HSPA + HSPA + Advanced (commercial) Created 01/21/11 Notes: R8 reaches 42 Mbps by combining 2x2 MIMO and HOM (64QAM) in 5 MHz, or by utilizing HOM (64QAM) and multicarrier in 10 MHz. R9 combines multicarrier and MIMO in 10 MHz to reach 84 Mbps 6 peak rates. Uplink multicarrier doubles the uplink peak data rate to 23 Mbps in 10 MHz in R9. R10 expands multicarrier to 20 MHz to reach 168 Mbps. R11 expands multicarrier to 40MHz to reach 336 Mbps.
  7. 7. HSPA+ Advanced: Maximum Performance in Multiple 5 MHz Carriers Utilizes Smart Networks Exploit uneven network load Evolves Multicarrier Aggregation of up to 8 carriers, unpaired spectrum HSPA+ Advanced More Antenna Gain Such as uplink beamforming and MIMO Continues to Leverage HetNets Connecting a Very Large Number of Devices Optimizations for the explosion of interconnected low -traffic devices (e.g. M2M, Smartphones)7 1HSPA+ Advanced is used as the name for features beyond 3GPP Release10 Release10.
  8. 8. Smart Networks Exploit Uneven Load Typically uneven load that Multipoint Transmission changes with time and location Different Data From Multiple Cells F1: 5MHz F1: 5MHz Heavy Load Smart Medium Load Network Light Load Multicarrier capable device Techniques (with receive diversity)18 1Receive diversity with interference suppression (Type 3i receiver) required.
  9. 9. Multipoint Improves Overall Network Capacity EVOLVES MULTICARRIER—DATA FROM MULTIPLE CELLS/NODEBs Demo at MWC 2011 F1: 5MHz F1: 5MHz F1: 5MHz F1: 5MHz Improved Network Load Cell Edge Balancing Improved Network Load Range Cell Edge Balancing ExpansionBy serving user from multiple cells Utilizes unused capacity in neighboring cells Effectively increases small cell boundary Improves user experience in loaded cell —better utilization and higher network capacity9 Note: Multipoint transmission is a 3GPP R11 candidate, a.k.a. SFDC. Receive diversity with interference suppression (type 3i receiver) required to reject other-cell interference.
  10. 10. Multipoint Offloads Capacity-Constrained Cells and Improves Cell Edge ~50% HIGHER DATA OFFLOADING TO RATE AT CELL EDGE ADJACENT CELLS (WITH MULTIPOINT) (Baseline: no multipoint) ~20% HIGHER 25% Change in Slot UtilizationMEDIAN DATA RATE (WITH MULTIPOINT) 20% 15% 10% 5% 0% 6 24 48 Increasing #users (in center cell) 3x Load UNEVEN LOAD EXAMPLE 1x Load (BEFORE LOADBALANCING) Notes :The increase depends on deployment and demand distribution. example shown for 3x vs 1x load uneven load. Smart networks10 gains from multipoint considered. Simulation: 3GPP 57 cell wrap around, 1km ISD with 3GPP bursty source and PA3 channel model.
  11. 11. Multipoint Benefits Single and Multiple Carrier Deployments as well as HetNets EXTENDS BENEFITS TO 5 MHz RANGE EXPANSION—MORE USERS DEPLOYMENTS BENEFIT FROM SMALL CELLS F1: 5MHz F1: 5MHz Dual-Carrier Device BENEFITS MULTIPLE CARRIER DEPLOYMENTS Added small cells F1: 5MHz F1: 5MHz More overlapping coverage with F2: 5MHz F2: 5MHz small cells—Multipoint effectively expands its range1 2x to 4x Multicarrier Device 1Benefits HetNets (mix of macro networks with added small cells like picocells) due to more overlapping coverage with small cells.11
  12. 12. Leveraging Heterogeneous Networks for the Next Leap in Performance Macro provides wide coverage Remote Radio heads  Optimizations to Further User Deployed Increase Performance Femtocells E.g., range expansion—better utilization of small cells Possibly Increased cooperation across nodes Relays  Evolution to Femto Networks Enabled before R11 to expand femtos beyond hotspots Operator Deployed Picocells  Self-Organizing Networks (SON) Femtocells already becoming self organizing Network SON techniques standardized already in R101 Bring Network Closer to User by Adding Small Cells 1Forexample Minimization of Drive Tests (MDT) and Automatic Neighbor Relation (ANR) are part of 3GPP R10. Heterogeneous networks: macro network with12 added small cells like picocells and femtocells.
  13. 13. Continued Multicarrier Evolution Aggregated Data Pipe Carrier 1 Supplemental downlink (unpaired) (leverages existing R9 band aggregation) Carrier 2 Up to 20 More 5 MHz aggregation MHz (Up to 40MHz, more band combinations) Carrier 3 Extend benefit to single carrier Carrier 4 (Multipoint) 2x downlink in R8 Across Bands R9 4x downlink in R1013
  14. 14. Mobile Traffic Typically Downlink Centric NEED MORE DOWNLINK CAPACITY2 MAJORITY OF TRAFFIC ON MORE DOWNLOAD, MORE VIDEO AND DOWNLINK (DL)1 RICH MEDIA TO NEW DEVICE SEGMENTS 1Based on measurements in live networks. Median shown. 2Uplink is also important, not only for capacity reasons: downlink improvement can be used to extend14 coverage. Faster TCP/IP feedback on the uplink means faster downlink Applications like social networking will drive more uplink data.
  15. 15. Supplemental Downlink Addresses Traffic Asymmetry  Leverage unpaired spectrum for more downlink capacity Demo at MWC  Implemented using HSPA+ R9 carrier aggregation1 2011 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.15 2L-Band in Europe:1452 MHZ to 1492 MHz.
  16. 16. Leverage Spectrum Within & Across Bands Aggregated Data Pipe Spectrum Examples: 5MHz Carrier 1 2.1 GHz (Band I) 5MHz Carrier 2 1900 MHz (Band II) Carrier 3 5MHz Carrier 4 Up to 1800 MHz (band III) 5MHz Carrier 5 40 MHz 5MHz 1700 MHz (Band IV) Carrier 6 Across bands R9 5MHz 4x DL in R101 8x DL in R11 Multicarrier Carrier 7 900 MHz (Band VIII) 5MHz HSPA+ Device 5MHz Carrier 8 850 MHz (Band V)Additional spectrum bands and bandcombinations continuously defined in 3GPP2 1With 4x multicarrier in R10 (and 8x in R11), carriers within the same band need to be adjacent and inter-band aggregation can span two different bands. 16 2 E.g., support for band XI (1500MHz Japan) combinations has been added and band III (1800MHz) is being added, beyond 4X combinations expected to be added in R11
  17. 17. More Antenna Gain 2 Receive & Transmit Antennas 2 Receive & Transmit Uplink Beamforming1 Antennas Uplink MIMO Downlink SU-MIMO (HSPA+ R7) Downlink MU-MIMO Leverage More Antennas17 1A form of closed loop transmit diversity.
  18. 18. Leverage Today’s MIMO Investment —Can Easily Evolve to MU-MIMO COMPLEMENTS SU-MIMO—UP TO 50% TOTAL MIMO GAIN More Antennas More 5MHz Carriers Beyond R10: DL MU-MIMO 168 Mbps UL MIMO/Beamforming HSPA+ R10: Up to ~30% MIMO in 20 MHz Capacity Gain1 (over R7 Single User MIMO) 84 Mbps HSPA+ R9: MIMO, 64QAM & Multicarrier 42 MbpsMU-MIMO: SW OnlyNodeB Scheduler Change 28 Mbps HSPA+ R8: MIMO and 64 QAM HSPA+ R7: 2x2 SU-MIMO MIMO Evolution 1Source Qualcomm simulations. NGMN D1, ISD = 500 m, Total Overhead Power = 30% (20% for SIMO), SCM Urban: Ant Separation:4λ, Correlation = 50% Full-buffer 18 with 16 users per cell .The more users the better gain MU-MIMO gain due to more opportunities to schedule multiple users simultaneously .
  19. 19. Closed Loop Beamforming Improves Uplink Data Rates or Coverage Demo at  Open loop (no feedback)—No network impact MWC  Good gain for stationary users 2010  Closed loop beamforming—Better performance  Improved mobility performance (R11) ~ 80% gain Cell edge data rates NodeB 2 Transmit Antennas ~20% gain Median data rates Or Extends Coverage Area by ~ 40% 1 Source:Qualcomm simulation for closed loop beamforming.3GPP framework PA3, 4UEs per cell, 2.8km ISD. Shows data throughput gain for the median and the 5% worst (Cell19 edge) users. Gain depends on propagation environment and the UE speed with lover gain for faster moving users. The open loop gain would be slightly less.
  20. 20. Closed Loop Beamforming Evolves to MIMO  Complements beamforming  Higher gain typically closer to NodeB  Small changes to beamforming  Both features standardized in R11 ~ 80% data rate gain Or ~ 40% Extended Coverage NodeB 2 Transmit 2 Transmit Antennas Antennas More MIMO Gain More Transmit Diversity closer to NodeB gain closer to cell edge 1 Source:Qualcomm simulation for closed loop beamforming.3GPP framework PA3, 4UEs per cell, 2.8km ISD. Shows data throughput gain for the median and the 5% worst (Cell20 edge) users. Gain depends on propagation environment and the UE speed with lover gain for faster moving users. The open loop gain would be slightly less.
  21. 21. HSPA+ Can Leverage More Antennas MOST GAIN FROM RECEIVE DIVERSITY WITHOUT IMPACTING STANDARD Uplink Downlink 4 Antennas 4 Antennas (Transmit/Receive) (Transmit/Receive) Improved Downlink Spectral Efficiency Standards 4x4MIMO impact Improved UplinkSpectral Efficiency 4 Rx No standards Standards Receive 2x4 MIMO impact impact Diversity 4-way receive Commercial 4 Rx 2x2 MIMO Receive diversity can today Diversity double capacity (with 2 physical 2 Rx antennas) Receive 2 Rx Diversity Receive with Diversity Advanced With IC 2 antennas practical Receivers NodeB for most devices21 MIMO=Multiple Input Multiple Output.
  22. 22. Connecting a Very Large Number of Devices The Next Era of Networking and Computing, Where Everything is Intelligently Connected HSPA+ optimizations to support the explosion of interconnected low-traffic devices, e.g., M2M and Smartphones Examples of improvements: Addition of Extended Access Class Barring (EAB) to handle very large density of low-traffic devices. Call rejection improvements to protect networks from access22 overload. Improvement of low power consumption states to handle bursty traffic even better .
  23. 23. HSPA+ Advanced: Maximum Performance in Multiple 5 MHz Carriers More Capacity Spectral efficiency, capacity per coverage area, more connected devices Capacity When & Where Needed Smart network techniques to exploit uneven load HSPA+Advanced Better Coverage By e.g., improved uplink Enhanced User Experience Better cell edge, lower latency, more bandwidth, consistently higher data rates23 1HSPA+ Advanced is used as the name for features beyond 3GPP Release10
  24. 24. Questions? Connect with Us www.qualcomm.com/technology @qualcomm_tech m.qualcomm.com/technology http://www.qualcomm.com/blog /contributors/prakash-sangam24
  25. 25. Q&A25
  26. 26. Thank You • Thank you for joining us at this FierceLive! Webinar! • This webinar has been recorded and will be available on- demand within 24 hours. You will receive a notice when the recording is up. • Thank you for joining us!Sponsor: