© 2016 samsung electronics - nttドコモホーム data rate support envisioned by mmwave...

© 2016 Samsung Electronics

Innovation of Mobile Communications

2G 3G

4G 5G

BW Peak Data Rate RAT NW

200 kHz 1.25 MHz 115.2 kbps 307.2 kbps GSM CDMA Circuit Switched Network

5 MHz 2.048 Mbps WCDMA Packet Switched Network

20 MHz 150 Mbps OFDMA All-IP Network

x00MHz ? Up to 20 Gbps Post-OFDMA Software Defined Network


5G Service Scenarios

© 2016 Samsung Electronics 3

5G Service Vision

Immersive Experience

Massive Connectivity

Everything on Cloud

Tele-Presence

Giga-bit Data Rate

Ultra Low Latency Giga-bit Data Rate

Ultra Low Latency

Ubiquitous Coverage

Intelligence Transport Giga-bit Data Rate

Ultra Low Latency


Technical Requirements

※ ITU-R document 5D/TEMP/625


28GHz mmWave Challenges and Opportunities

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

Path Loss Model in Urban Environment


Samsungが注力する5G関連の６つの技術エリア

Key Enabling Technologies

Legacy Bands

3 GHz 30 GHz 700 MHz

New Bands

18 27

mmWave RFIC

Wide Coverage Antenna

> 6 GHz System/RFIC/Ant. Post-OFDM Multi-RAT Interworking

< 6 GHz Massive MIMO Massive Connectivity Low Latency NW Half -Wavelength

Filter-Bank Multi-Carrier

4G eNB

5G BS Wi-Fi

Grant-Free Multiple Access

Grant-based Multiple Access

eNB

UE

3~4 Step eNB

UE

1 Step

① Radio Information

② TCP Rate Control

Server Mobile BS Data


28GHz mmWave Channel Modeling Leading Channel Modeling Activity toward Outdoor Cellular Deployment

Gbps data rate support envisioned by mmWave propagation analysis

Universities & research centers NYU, USC, KAIST

Research projects 5G PPP mmMAGIC, COST IC1004

Standard Rapporteur on 3GPP 5G Channel Model SI

for > 6GHz NYU campus

Calibration

1 2 3 4 5 6 7 8 9 100

10

20

30

40

50

60

70

80

90

100

Measurement Index #A

ngul

ar S

prea

d

Angle Spread Comparison @ New York

NYU MeasurementNew York Ray-Tracing

50 80 100 150 200100

110

120

130

140

150

160

170

Distance between transmitter and receiver (m)

Pat

h Lo

ss (d

B)

Comparison of propagation models : 28GHz

Measurment Samples - NYU CampusMeasurement-based Pathloss Model (NLoS)Ray-tracing Samples - NYU CampusRay-tracing-based Pathloss Model (NLoS)

Channel modeling

Pathloss Cal.

1 10 50 100 150 25060

70

80

90

100

110

120

130

140

150

160

Distance [m]

Pat

h Lo

ss [d

B]

σn,Synthesized Omni-NLoS = 6.08dB

Synthesized Omni-NLoSnSynthesized Omni-NLoS = 3.58

0 50 100 150 200 250 3000

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

RMS Delay Spread [ns]

Cum

ulat

ive

Dis

tribu

tion

Fun

ctio

n (C

DF

)

Delay Spread in NLoS

E[σDSDaejeon

] =55.4292 ns

E[σDSAlpensia

] =60.4132 ns

Measurement (Daejeon NLoS)Modeling (Daejeon NLoS)Measurement (Alpensia NLoS)Modeling (Alpensia NLoS)

0 20 40 60 80 100 1200

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

AoA spread [deg]

Cum

ulat

ive

Dis

tribu

tion

Fun

ctio

n (C

DF

)

RX Azimuth Angle Spred in NLoS

E[AoA spreadDaejeon]=31.3912o

E[AoA spreadAlpensia]=43.1066o

Measurement (Daejeon, NLoS)Modeling (Daejeon, NLoS)Measurement (Alpensia, NLoS)Modeling (Alpensia, NLoS)

Angle Spread Cal.

Pathloss Model Delay Spread Angle Spread TX

TX

Measurement Campaign

2018 Winter Olympic Resort

Tx

NLoS Rx

28 GHz Channel Sounder

[TX]

[RX]


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

28GHz-Band Transmission Test Equipments

5 mm

25 mm

42 mm

56 mm


Pros and Cons of using 28GHz

Pros

Cons

•Wide bandwidth available •Small antenna apertures •LOS MIMO possible

•Large “Path-loss”

•Beamforming available/needed •Massive MIMO available/needed •Small cell size available/needed

Both Pros & Cons

28GHz帯で懸念される”Path-loss”の影響を明らかにする


“Path-loss” は周波数の２乗に比例??

⋅

⋅⋅⋅=

⋅⋅⋅=

=

22

2

2

2

2

41

411

41

411

4

RfcP

RP

RGGPP

TX

TX

RXTXTXRX

ππ

ππλ

πλ

Spherical Area

Path-loss

2.8 GHz 28 GHz 28 GHz RX Aperture Size 9.135 cm2 0.091 cm2 9.135 cm2

Path-loss (R=1m) -41.4 dB -61.4 dB -41.4 dB

= 1 for Isotropic

( c : speed of light )

g -120

-90

-60

-300 100 200 300 400 500

f = 800 MHz

f = 2.8 GHzf = 28 GHz

Distance (m) Path-loss (dB)

Isotropic Tx

Aperture Size for Isotropic Rx Ant @ 2.8 GHz

Aperture Size for Isotropic Rx Ant @ 28 GHz

28GHz Path Loss and Aperture Size

(大気による吸収を考慮しない場合)

Aperture size

アンテナサイズが同じなら “Path-loss”も同じ


大気（ H2O, O2 ）による吸収が大きい??

28GHz Path Loss and Atmospheric Absorption

[Ref.] M. Marcus and B. Pattan. Millimeter wave propagation: spectrum management implications. IEEE Microwave Magazine, June 2005.

[Conditions]

H2O/O2ともに無視できるレベル

0.1

減衰量（dB

/km）

10-2

1

10

102

□ H2O Absorption @ 28 GHz: ~0.09 dB/km (~0.018 dB/200 m) □ O2 Absorption @ 28 GHz: ~0.02 dB/km (~0.004 dB/200 m)

1 10 102

H2O

O2

周波数（GHz）


雨の影響は大きい??

28GHz Path Loss and Rain Attenuation

□ 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

[Ref.] M. Marcus and B. Pattan. Millimeter wave propagation: spectrum management implications. IEEE Microwave Magazine, June 2005.

[Ref.] http://www.nws.noaa.gov/ohd/hdsc/On-line_reports/

100 Year Recurrence 1-hour Rain Intensity (Eastern US)

Florida : 127 mm/hr

Washington : 76.2 mm/hr

New York : 69.85 mm/hr

セル半径~200m であれば問題ない

1 10 102 f（GHz） 103

0.1

減衰量（dB

/km）

10-2

1

10

102 150 mm/h


BS installed at a terrace (5F)

MS installed on a car

42 mm

56 mm

28GHz Mobility(60km/h) Test Setup


0

10

20

30

40

50

60

70

80

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

50 100 150 200 250 300 350 400 450 500

SNR

(dB

), Sp

eed

(km

/h)

Thro

ughp

ut (G

bps)

Distance from BS (m)

Throughput

SNR

Speed

4.6s 67.8m MIMO

SISO

BS

60m 500m

28GHz Mobility(60km/h) Test Result


28GHz World’s 1st 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


3GPP 5G Standardization Timelines Timely Completion of 3GPP Rel-15 5G Standards Required for Commercial 5G Service in 2020

2015 2016 2017 2018 2019 2020

Study Items

RAN 5G Workshop

'15. 9

Rel-15 Rel-14 Rel-13

'17. 6 '16. 3

WRC-15

Rel-16

‘20.03

Further Enhancements Work Items

'18. 9

Channel Model SI

5G Standards 5G Phase I 5G Phase II

WRC-19 IMT-2020 Specification

28GHz

Thank You

© 2016 samsung electronics - nttドコモ ホーム data rate support envisioned by mmwave...

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© 2016 samsung electronics - nttドコモホーム data rate support envisioned by mmwave...