Dr Hamid Falaki - NEC Europe- LTE Deployment Scenarios

A Simulation Study to Examine Various Deployment Scenarios for LTE Dr Hamid Falaki Senior Product Manager Global LTE/SAE Strategy & Solution, NEC Europe

Content ▐ Performance through Deployment  Objectives

 Why Study LTE Performance  Methodology  Carrier Frequency Impact

…high vs LOW f r e q u e n c i e s  Cell Size Impact in Deployment Options

… small vs LARGE c e l l s ▐ Conclusions

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Objectives ▐ Cellular network the objectives … Reliable Radio Link Between Network & End User Maximising Total Cell Throughput Maximise Number of Users Within the Cell for a Given Service Opportunity to Maximise Revenue Generation Mobile Network Traffic Growth

Challenge is to Manage Significant Growth in Traffic with a Sluggish Revenue

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Traffic

Gap Revenue

Why Study LTE Performance LTE answer to this Challenge

Mobile Network Traffic Growth

Traffic

Gap Revenue

Mature LTE

Managing 3 NWs is costly & complex

Mature GSM

3rd Network must be  Cheap  Easy to Manage  Fast to Deploy

Mature 3G/HSPA LTE With Small Cells & Femto

Total Market Sale Early 3G

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2030

2025

2020

2015

2010

Early LTE

2005

2000

1990

Early GSM

Time

Methodology Macro Cells • • • •

Micro/Pico cells

10MHz bandwidth 3 sector antenna per site 2x20W RF MIMO DL FTP Analysis

• • • •

10MHz bandwidth Omni antenna per site 2x4W RF MIMO DL FTP Analysis

Study of Carrier Frequency Cell Size

LTE Cell Performance Service assumed was 2MB FTP traffic Users added to cell to create cell load NEC Confidential

Carrier Frequency Impact for different ISD ISD=1732m Large Suburban MacroMacro CellCellISD = 1732m

60

[Mbps] Throughput User Mean FTP / Mbps FTPRLC throughput user [DL] Mean RLC

[Downlink ]

700MHz - Mean 700MHz - 5% (Cell edge) 700MHz - 95% (Cell centre) 2140MHz - Mean 2140MHz - 5% (Cell edge) 2140MHz - 95% (Cell centre) 2665MHz - Mean 2665MHz - 5% (Cell edge) 2665MHz - 95% (Cell centre)

50

40 ~3Mbps

~4Mbps

30 25Mbps service

20

10

0

0

2

4 6 8 [DL]Served Served Cell Cell Thoughput Throughput/[Mbps] Mbps

Large macro cells – for a given service (e.g. 25Mbps ) • Cells at lower carrier freq. deliver ~4Mbps from each cell • Cells at higher carrier freq. deliver ~3Mbps from each cell NEC Confidential

10

12

Higher Frequencies in Macro Cells results

lower cell throughput

Carrier Frequency Impact for different ISD ISD=1732m Large Suburban MacroMacro CellCellISD = 1732m

60

[Mbps]/ Mbps Throughput User Mean FTP throughput user [DL] Mean FTPRLC RLC

[Downlink ]


4 Mbps Avg. Cell throughput

50

~25 Mbps service

40

30 ~18 Mbps service

20

10

0

0

2

4

6

8

[DL]Served Served Cell Cell Thoughput Throughput/[Mbps] Mbps Large macro cells – for a given target cell throughput (e.g. 4 Mbps ) • Cells at lower carrier freq. deliver services of up to ~ 25 Mbps across the cell • Cells at higher carrier freq. deliver services of up to ~ 18Mbps across the cell NEC Confidential

10

12

Higher Frequencies in Macro Cells provide

Reduced QoE to Users

Carrier Frequency Impact for different ISD Micro Cell = 500m Urban Macro ISD Cell ISD=500m

throughput user [DL] Mean RLC [Mbps]/ Mbps Throughput User FTP RLC Mean FTP

60

[Downlink ]


4.5 Mbps Avg. Cell throughput

50

40

Example KPI 30

25Mbps service 20

10

0

0

2

4

6

8

Served Cell [Mbps] [DL] Served CellThoughput Throughput/ Mbps

Micro cells of ISD = 500m • Carrier freq. deliver similar performance once cells are loaded NEC Confidential

10

12

Advantage of carrier frequency fades away

Carrier Frequency Impact for different ISD Small ISD = 100m Micro CellCell ISD=100m / Mbps user throughput [DL] MeanMean FTPUser RLC [Mbps] Throughput

60

[Downlink ]

700MHz - Mean 700MHz - 5% 700MHz - 95% 2140MHz - Mean 2140MHz - 5% 2140MHz - 95% 2665MHz - Mean 2665MHz - 5% 2665MHz - 95%

6.5 Mbps Avg. Cell throughput

50

40

Example KPI 30

25Mbps service 20

10

0

0

1

2

3

4 5 6 7 CellCell Throughput [Mbps] Mbps [DL]Served Served Throughput/

Small Pico cells of ISD = 100m • Low or high carrier freq. deliver same performance • Small cells deliver higher cell throughput for the same service NEC Confidential

8

9

10

Higher Carrier Frequency Performs as EQUALLY to Lower Carrier Frequency

Carrier Frequency Impact for different ISD Suburban Macro Cell ISD=1732m Large Macro Cell ISD = 1732m

[DL ] Mean FTP RLC User Throughput [Mbps]

60


50

40

~4Mbps

~3Mbps

Comparing Large Macro Cell & Pico Cell

30

25Mbps service 20

~18Mbps service

10

0

Small Pico cells of ISD = 100m • Delivers more reliable radio link • Maximises cell throughput • Creates opportunity for higher revenue

Larger cells of ISD=1732m • 2.6GHz is not suitable in large cells 0

2

4 6 8 Served Cell Thoughput [Mbps]

[Downlink ]

10

12

Micro Cell ISD=100m

Small Cell ISD = 100m

60

700MHz - Mean 700MHz - 5% 700MHz - 95% 2140MHz - Mean 2140MHz - 5% 2140MHz - 95% 2665MHz - Mean 2665MHz - 5% 2665MHz - 95%

[DL ]

Mean User Throughput [Mbps]

50

40

25Mbp FTP service

Macro cell

Pico Cell

2.6GHz

~2.5 Mbps

~6.5 Mbps

700MHz

~4

~6.5 Mbps

Mbps

30

25Mbps service

Small Cells & 2.6GHz are Complementary & Provide Higher Overall Network Capacity

20

>6.5Mbps 10

0

0

1

2

3

4 5 6 7 Served Cell Throughput [Mbps]

8

9

10

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Deployment Options 60

Comparing Different Cell Size on 2.6GHz Performance

50

40

20

30

~70 Mbps/km2

20

20Mbps service

~4 Mbps/km2

(800/4)

30

User Data Rate [Mbps]

40

(70/4)

200 times increase in performance of Pico Cell compared to Macro Cell

ISD100 2665MHz - Mean ISD100 2665MHz - 5% ISD100 2665MHz - 95% ISD500 2140MHz - Mean ISD500 2140MHz - 5% ISD500 2140MHz - 95% ISD500 2665MHz - Mean ISD500 2665MHz - 5% ISD500 2665MHz - 95% ISD1732 2140MHz - Mean ISD1732 2140MHz - 5% ISD1732 2140MHz - 95% ISD1732 2665MHz - Mean ISD1732 2665MHz - 5% ISD1732 2665MHz - 95%

50

User Data Rate [Mbps]

Based on 20Mbps service • Pico cells provide ~800 Mbps/km2 • Micro cells provide ~70 Mbps/km2 • Large cells provide ~4 Mbps/km2

[Downlink ] 60

10

10

Small cells offer • Capacity solution • Higher revenue Larger cells offer • Coverage solution

0 0 10

0 0 10

10

1

10

1

2

10 Offered Load Per Km2 [Mbps] 2

10

3

10 Offered Load Per Km2 [Mbps]

~800 Mbps /km2

10

10

4

3

10

Traffic Density 200 times moreDemand network is Addressed capacity PicoSelection Cell through The with Right of Cell Size NEC Confidential

4

Deployment Options LTE deployment drivers 4

1 2

LTE Femto

&

Small cell eNB

• Residential / SOHO • Enterprise for indoor private • Outdoor Public

3

1

Capacity Driven Hotspots and high traffic zones

Micro / Pico

All in One Deployment for Micro & Pico Cells 2x4W RF, 125W, 12kg 420x230x130 mm Pico eNB (BB+RF)

Femto Enterprise

Femto Residential

4 3

Indoor & Outdoor Distributed eNB

2 1

2

New Business Driven Femto and hotspot islands

1

Indoor BBU

Macro RRH

LTE HSPA

Outdoor BBU

3

LTE

LTE

4 2

3

LTE Femto

LTE 2G/3G

Coverage Driven Macro deployment

LTE

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Conclusions ▐ Density of the traffic demand can be addressed by the right selection of the cell size ▐ Small cell solutions provide significantly higher network capacity irrespective of carrier frequencies, i.e cost effective use 2.6GHz ▐ Small cell and higher carrier frequency complement each other towards lower TCO with higher revenue generation opportunity

▐ NEC’s vision for successful lunch of LTE is through small LTE cells ▐ NEC offers unique portfolio of LTE /EPC solutions for all types of applications with a specific focus on S m a l l C e l l s

NEC Confidential

NEC Confidential

Dr Hamid Falaki - NEC Europe- LTE Deployment Scenarios

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