5G Three UK s View Prof Dr Erol Hepsaydir Head of RAN and Device Strategy & Architecture Three UK
Coverage Operational Performance Capacity Speed Spectrum Deployment Operations Technology Bandwidth Site acquisition Self Organising 3GPP Low, High Antennas Performance Cost vs Technology Balance
Traffic Growth. Demand for data continues to grow. Operators need to find new ways of providing for the capacity growth. Source: Ericsson Mobility Report November 2015
Requirements High Availability Average Speed Increase Low Latency 5G Massive Capacity Increase Energy Saving Increased Connected Devices Backward compatibility Harmonisation Low Cost
5G E2E 5G It is not only a new radio Interface Technology Services Devices Radio Flexible air interface/new Modulation Interference Management/Full Duplex Massive MIMO Spectrum existing bands, mmwave, channel modelling Flexible resource utilisation Backhaul Fibre, Wireless, self backhauling, Latency, Sync New Network Architecture/ Virtualisation SDN, NFV, C-RAN New codec Voice/Video Human Human Device Device Human Device Longer battery life Powerful processors Higher resolution displays Deployment Plug and Play Small cells, HetNet Mobile base stations 5 Operations New performance metrics Backward compatibility Automated management, eson Analytics, User experience
Shannon s Limit C W n log 2 (1+SINR) More Spectrum More Antennas Interference Management Efficient use of spectrum, New licensed spectrum, LAA, High frequency bands 4T4R diversity, MIMO techniques, increased number of sectors Radio optimisation Adv Receivers, Interfernce cancelr, Interfrnc manag, FeICIC
3GPP Evolution towards 5G 2010 2012 2014 2016 2018 2020 Release 8,9 Release 10,11 Release 12 Release 13 Release 14 Release 15 Release 16 LTE (>100Mbps) LTE A (>300Mbps) LTE Adv/Pro (>1Gbps) 5G (>5Gbps) OFDMA 2x2 MIMO 20MHz CA 4x4MIMO HetNet VoLTE embms C-RAN 256QAM Large MIMO Large CA LAA NFV 5G Demo New Air Interface Massive MIMO Full Duplex mmwave ehetnet R15 based 5G trials
Spectrum 3.6 10 20 30 40 50 60 70 80 90 GHz 8 There is significant amount of high frequency spectrum available in high frequency bands Therefore Global harmonization of 5G spectrum is essential Licensed or Unlicensed or both Larger bandwidths at high frequencies offer higher user speeds, however New (higher!) frequencies have challenges: higher pathloss, shorter reach more sensitive to Doppler effect huge atmospheric attenuation increased inbuilding penetration loss new channel models needed Visible Light line-of-sight becomes more crucial non-los links 10s of dbs weaker than LoS
New Network Architecture There would be 3 different deployment scenarios: Outdoor macro, micro, picocells, femtocells Indoor DAS, Smallcells Mobile cells Femtocells, relays Source: IEEE ComSoc Fibre access and new wireless backhaul will be significant part of 5G networks
Backhaul Support New 5G architecture will be comprised of many small cells 5G will require large bandwidth for backhaul connectivity to support high speeds Reference: IEEE ComSoc For ultra-dense deployment self-backhauling, full duplex operation and fibre connectivity are becoming important to balance cost, spectral efficiency and the performance. 5G will require new thinking of self-backhauling beyond its current use in 3GPP (4G)
Technology Timeline 2000 2010 2020 2030 2G GSM/GPRS/EDGE Data Traffic ///// 3G WCDMA/HSPA+ //////// 4G LTE/LTE-Adv/LTE-Adv Pro //////// 5G Proposals to ITU IMT2020 Specification 3GPP R16 Network and Devices New Spectrum 2.3/3.4GHz //////// Research/Standardisation Commercial Deployment Small Cell deployment kicks off LTE-Adv/Pro Deployment Large scale Deploymnt
Practicality. Self - opti mise Architecture Scalability Flexibility Operability Self - config ure Self - heal Deployment Cost Self configure Complexity Automation Backhaul Fibre, microwave Spectrum Licensed, Unlicensed
Conclusion. 5G to deliver More efficient use of resources to deliver IoT 5G will require new thinking of self-backhauling beyond its current use in 3GPP (4G) Automation, enhanced SON Big data, enhanced user experience Devices Reduced cost Spectrum Bandwidth is limited at low frequencies which will be 4.5G next 5-10 years which may then be re-farmed to 5G. Larger bandwidths are available at high frequencies with several propagation challenges where 5G can deliver high speeds and reliability. Has to be Harmonised Backward compatible Easy to deploy and operate Low Cost
Thank you.