LTE Rel-12 and beyond

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LTE Rel-12 and beyond
By Dino Flore (Chairman of 3GPP RAN)
From LTE World Summit 2014

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LTE Rel-12 and beyond

  1. 1. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 1 LTE Rel-12 and beyond Dino Flore Chairman of 3GPP RAN LTE World Summit 2014
  2. 2. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 2 Introduction 3GPP RAN has started a new innovation cycle which will be shaping next generation cellular systems A variety of radio technologies are being considered for standardization in Rel-12 or future releases This presentation provides a brief overview of the main technology areas 3GPP RAN is working on for Rel-12 and beyond
  3. 3. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 3 LTE: continual evolution Rel-12 (Dec. ’14)Rel-8 (Dec. ’08) • FDD and TDD mode • Flexible bandwidth (1.4MHz to 20MHz) • DL SU-MIMO (4 layers) and SDMA • UL TX diversity and SDMA • Inter-cell power control and interference management • Inter-eNB and Inter-RAT mobility • HeNB/CSG & SON support Rel-9 (Dec. ‘09) • eMBMS • Dual stream beamforming • Positioning • Enhanced HeNB/CSG support • Emergency services Rel-10 (Jun. ‘11) • CA (up to 5 CCs) • Enhanced MIMO (8 DL and 4 UL layers) • eICIC • Relays • Enhanced SON & MDT Rel-11 (Jun. ‘13) • DL and UL CoMP • In-device coexistence • Enhanced Physical Downlink Control Channel (ePDCCH) • Further eICIC
  4. 4. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 4 Technologies that improve network capacity and cell-edge performance LTE Rel-12 and beyond
  5. 5. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 5 Network hyper-densification Higher order modulation i.e. 256 QAM for downlink Small cell discovery and support of cell on/off mechanisms Radio interface based inter-cell synchronization Interference management and traffic adaptation for LTE TDD • Interference management when neighbor cells have different UL/DL ratio • More dynamic reconfiguration of UL/DL ratio of a cell Towards hyper-dense networks Physical Layer enhancements for Small Cells
  6. 6. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 6 Network hyper-densification (2) Example of Dual Connectivity: anchoring connections to macro cells while boosting datarate via small cells New protocol/architectural enhancements for Small Cells Dual Connectivity Mobility and SON enhancements
  7. 7. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 7 Multi-antenna technology advancements 3D channel modeling study to enable future work on: • Terminal-specific elevation beamforming • Full-dimension MIMO o MIMO systems with large number of antennas, e.g. 64 o To become relevant with the use of higher frequencies
  8. 8. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 8 Other technologies Coordinated Multi-Point (CoMP) operation with non ideal-backhaul Advanced interference suppression at the terminal • Support of interference suppression on the data channel, with semi-static network assistance
  9. 9. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 9 Technologies that make more spectrum available at the terminal LTE Rel-12 and beyond
  10. 10. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 10 Carrier Aggregation advancements RF requirements definition for CA combinations with: F2: ULF1: UL F2: DLF1: DL Frequency F1: UL F2: DLF1: DL F3: DL paired paired Frequency paired paired FDD example (non-contiguous) FDD example (contiguous) 2 uplink carriers • Non-contiguous for intra-band and inter-band 3 downlink carriers (with 1 uplink) • Contiguous and non contiguous for intra-band and inter-band
  11. 11. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 11 Carrier Aggregation advancements (2) FDD/TDD carrier aggregation framework • Further integration between the two modes allowing operators to fully utilize their spectrum • Connections to be anchored either to the FDD or to the TDD carrier RF requirements definition for actual CA band combinations to follow F1: UL F2 (UL/DL) Frequency F1: DL pairedpaired unpaired
  12. 12. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 12 LTE-WiFi radio interworking LTE Seamless mobility WiFi Enhanced inter-working solutions between LTE and WiFi, in idle and connected mode Goal is to allow operators to steer traffic between their LTE and Wifi networks, based on radio or load conditions
  13. 13. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 13 LTE in unlicensed spectrum Proposal to enhance LTE to operate in unlicensed spectrum being considered for Rel-13 Goal is to offer cellular operators the option to utilize unlicensed spectrum with a unified network • Offering potential operational cost saving, improved spectral efficiency and better user experience More information on the status of the discussion available on www.3gpp.org
  14. 14. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 14 Technologies that enable new services or enhance existing ones LTE Rel-12 and beyond
  15. 15. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 15 Low-cost MTC Goal is to reduce modem cost for low datarate Machine-Type Communications (MTC) Low cost enablers introduced in Rel-12 • New low datarate UE category (~1Mbps max throughput) • 1 RX antenna operation
  16. 16. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 16 Device-to-device (D2D) Goal is to enable proximity services for Public Safety (PS) and Consumer usecases Solutions for D2D discovery and communications, covering: • D2D discovery under network coverage • D2D communication under network coverage, with focus on PS applications • D2D communication outside network coverage, solely for PS D2D
  17. 17. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 17 Others Group Communication for Public Safety • Enablers allowing the support of Group Communications in LTE networks eMBMS measurements • Definition of eMBMS-related measurements to be used for planning purposes e.g. to optimize the quality of MBMS services being delivered • New measurements to be collected using the existing MDT functionality Voice & Emergency related enhancements • Specification of uplink bundling to increase coverage of voice services • Evaluation of further radio mechanisms to prioritize voice or emergency services during congestion situations
  18. 18. © 3GPP 2009 Mobile World Congress, Barcelona, 19th February 2009© 3GPP 2013 LTE Rel-12 and beyond 18 Thanks

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