Innovation of Mobile Communications

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2 Innovation of Mobile Communications 5G 2G 3G 4G BW 200 khz 1.25 MHz 5 MHz 20 MHz x00mhz? Peak Data Rate kbps kbps Mbps 150 Mbps Up to 20 Gbps RAT GSM CDMA WCDMA OFDMA Post-OFDMA NW Circuit Switched Network Packet Switched Network All-IP Network Software Defined Network 2016 Samsung Electronics

3 5G Service Scenarios 2016 Samsung Electronics

4 5G Service Vision Everything on Cloud Immersive Experience Massive Connectivity Tele-Presence Giga-bit Data Rate Giga-bit Data Rate Ubiquitous Coverage Giga-bit Data Rate Ultra Low Latency Ultra Low Latency Intelligence Transport Ultra Low Latency 2016 Samsung Electronics 3

5 Technical Requirements ITU-R document 5D/TEMP/ Samsung Electronics 4

6 28GHz mmwave Challenges and Opportunities Path Loss Model in Urban Environment Larger path-loss at high frequency bands Atmosphere loss, rain attenuation, foliage blocking Outdoor-to-indoor penetration loss Semiconductor readiness, PA efficiency, power consumption Samsung developed the world s first 28GHz mobile prototype to verify the feasibility of 28GHz mobile communications Global collaborative effort on 28GHzchannel modeling 2016 Samsung Electronics

7 Key Enabling Technologies Samsung が注力する 5G 関連の 6 つの技術エリア > 6 GHz System/RFIC/Ant. Post-OFDM Multi-RAT Interworking 700 MHz 3 GHz GHz Filter-Bank Multi-Carrier Legacy Bands mmwave RFIC New Bands Wide Coverage Antenna 4G enb Wi-Fi 5G BS < 6 GHz Massive MIMO Massive Connectivity Low Latency NW Half -Wavelength Grant-based Multiple Access en B 3~4 Step Grant-Free Multiple Access 1 Step enb 1 Radio 2 TCP Rate Information Control UE UE Mobile Data BS Server 2016 Samsung Electronics 6

8 28GHz mmwave Channel Modeling Leading Channel Modeling Activity toward Outdoor Cellular Deployment Gbps data rate support envisioned by mmwave propagation analysis Measurement Campaign Tx NLoS Rx T X NYU campus T X 28 GHz Channel Sounder [TX] [RX] 2018 Winter Olympic Resort Path Loss [db] Angular Spread Calibration Angle Spread New York NYU Measurement New York Ray-Tracing Angle Spread Cal Measurement Index # Channel modeling Synthesized Omni-NLoS n Synthesized Omni-NLoS = Distance [m] Cumulative Distribution Function (CDF) Path Loss (db) Delay Spread in NLoS RMS Delay Spread [ns] Comparison of propagation models : 28GHz Measurment Samples - NYU Campus Measurement-based Pathloss Model (NLoS) Ray-tracing Samples - NYU Campus Ray-tracing-based Pathloss Model (NLoS) Pathloss Cal Distance between transmitter and receiver (m) 0.5 Measurement (Daejeon NLoS) 0.5 Modeling (Daejeon NLoS) 0.4 Measurement (Alpensia NLoS) 0.4 Measurement (Daejeon, NLoS) Modeling (Daejeon, NLoS) Modeling (Alpensia NLoS) Measurement (Alpensia, NLoS) Modeling (Alpensia, NLoS) E[σ DSDaejeon ] = ns σ = 6.08dB E[AoA spread ]= o n,synthesized Omni-NLoS Daejeon 0.1 E[σ DSAlpensia ] = ns 0.1 Pathloss Model Delay Spread Angle E[AoA spread Spread ]= o Alpensia Cumulative Distribution Function (CDF) RX Azimuth Angle Spred in NLoS AoA spread [deg] Universities & research centers NYU, USC, KAIST Research projects 5G PPP mmmagic, COST IC1004 Standard Rapporteur on 3GPP 5G Channel Model SI for > 6GHz 2016 Samsung Electronics

9 28GHz-Band Transmission Test Equipments 業界最高レベルの高スループット伝送実験 高速移動通信実験 25 mm 56 mm 42 mm 5 mm 2016 Samsung Electronics 8

10 Pros and Cons of using 28GHz Pros Wide bandwidth available Small antenna apertures LOS MIMO possible Cons Large Path-loss Both Pros & Cons Beamforming available/needed Massive MIMO available/needed Small cell size available/needed 28GHz 帯で懸念される Path-loss の影響を明らかにする 2016 Samsung Electronics 9

11 28GHz Path Loss and Aperture Size Path-loss は周波数の 2 乗に比例?? P RX = 2 λ 1 = PTX 1 1 4π 4πR Aperture size = ( c : speed of light ) P P TX TX G TX G RX λ πr 4 = 1 for Isotropic 2 c 1 1 4π f 2 2 Path-loss 2 1 4πR Spherical Area 2 ( 大気による吸収を考慮しない場合 ) Path-loss (db) GHz 28 GHz 28 GHz RX Aperture Size cm cm cm 2 Path-loss (R=1m) db db db g Distance (m) f = 800 MHz f = 2.8 GHz f = 28 GHz Isotropic Tx アンテナサイズが同じなら Path-loss も同じ Aperture Size for Isotropic Rx 2.8 GHz Aperture Size for Isotropic Rx 28 GHz 2016 Samsung Electronics 10

12 28GHz Path Loss and Atmospheric Absorption 大気 ( H 2 O, O 2 ) による吸収が大きい?? H 2 O 28 GHz: ~0.09 db/km (~0.018 db/200 m) O 2 28 GHz: ~0.02 db/km (~0.004 db/200 m) 10 2 減衰量 (db/km) H 2 O H 2 O/O 2 ともに無視できるレベル 10-2 O 周波数 (GHz) [Conditions] [Ref.] M. Marcus and B. Pattan. Millimeter wave propagation: spectrum management implications. IEEE Microwave Magazine, June Samsung Electronics 11

13 28GHz Path Loss and Rain Attenuation 雨の影響は大きい?? Atten. of once-in-100-year rain in Seoul (~110 mm/h): ~4 db/200m Atten. of once-in-100-year rain in Eastern US (~127 mm/h): ~5 db/200m 100 Year Recurrence 1-hour Rain Intensity (Eastern US) mm/h New York : mm/hr Washington : 76.2 mm/hr Florida : 127 mm/hr [Ref.] [Ref.] M. Marcus and B. Pattan. Millimeter wave propagation: spectrum management implications. IEEE Microwave Magazine, June 減衰量 (db/km) セル半径 ~200m であれば問題ない f(ghz) Samsung Electronics 12

14 28GHz Mobility(60km/h) Test Setup MS installed on a car 56 mm 42 mm BS installed at a terrace (5F) 2016 Samsung Electronics

15 28GHz Mobility(60km/h) Test Result Throughput SNR Throughput (Gbps) s 67.8m MIMO SISO Speed SNR (db), Speed (km/h) Distance from BS (m) BS 60m 500m 2016 Samsung Electronics

16 28GHz World s 1 st Multi-Cell Handover Handover Tests in 3-Cell Network (Average ISD : 178m) Handover Latency of 21 ms with Fast Adaptive Hybrid Beamforming Average Throughput of 1.67 Gbps at Driving Speed of 25 km/h 2016 Samsung Electronics

17 3GPP 5G Standardization Timelines Timely Completion of 3GPP Rel-15 5G Standards Required for Commercial 5G Service in WRC-15 WRC-19 IMT-2020 Specification '15. 9 '16. 3 '17. 6 ' RAN 5G Workshop Channel Model SI Study Items Work Items Further Enhancements Rel-13 Rel-14 Rel-15 Rel-16 5G Standards 5G Phase I 5G Phase II 28GHz 2016 Samsung Electronics

18 Thank You