Dr Hamid Falaki - NEC Europe- LTE Deployment Scenarios

7/31/2019 Dr Hamid Falaki - NEC Europe- LTE Deployment Scenarios

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A Simulation Study to ExamineVarious Deployment Scenarios for LTE

Dr Hamid FalakiSenior Product Manager

Global LTE/SAE Strategy & Solution, NEC Europe


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NEC Confidential

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 Cellfor a Given Service

Opportunity to Maximise Revenue Generation

Mobile NetworkTraffic Growth Traffic

Revenue

GapChallenge is to ManageSignificant Growth in Traffic

with a Sluggish Revenue


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NEC Confidential

TotalMarket Sale

Time

1990

2000

2005

2010

2015

2020

2025

2030

Early GSM

MatureGSM

Mature

3G/HSPA

MatureLTE

Early 3G Early LTE

LTE WithSmallCells& Femto

Mobile NetworkTraffic Growth Traffic

Revenue

Gap

LTEanswer to this

Challenge

Managing 3 NWs iscostly & complex

3rd

Network must be Cheap Easy to Manage Fast to Deploy

Why Study LTE Performance


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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 ofCarrier FrequencyCell Size

LTE Cell Performance

Service assumed was 2MB FTP trafficUsers added to cell to create cell load


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0 2 4 6 8 10 120

10

20

30

40

50

60

Served Cell Thou h ut Mb s

MeanFTPRLC

Use

rThroughput[Mbps]

Suburban Macro Cell ISD=1732m

700MHz - Mean

700MHz - 5% (Cell edge)

700MHz - 95% (Cell centre)

2140MHz - Mean



2665MHz - Mean



[D

L]MeanFTPRLCu

serthroughput/Mbp

s

[DL] Served Cell Throughput/ Mbps

Large Macro Cell ISD = 1732m

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

Carrier Frequency Impact for different ISD

25Mbps service

~4Mbps~3Mbps

Higher Frequenciesin Macro Cells results

lower cell throughput

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0 2 4 6 8 10 120

10

20

30

40

50

60


MeanFTPRLC

Use

rThroughput[Mbps]


700MHz - Mean



2140MHz - Mean



2665MHz - Mean




[D

L]MeanFTPRLCu

serthroughput/Mbp

s


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


4 Mbps Avg. Cell throughput

~25 Mbps service

~18 Mbps service

Higher Frequenciesin Macro Cells provide

Reduced QoE to Users

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0 2 4 6 8 10 120

10

20

30

40

50

60

Served Cell Thoughput [Mbps]

MeanFTPRLC

Use

rThroughput[Mbps]

Urban Macro Cell ISD=500m

700MHz - Mean



2140MHz - Mean



2665MHz - Mean



Micro Cell ISD = 500m

[D

L]MeanFTPRLCu

serthroughput/Mbp

s


Micro cells of ISD = 500m

Carrier freq. deliver similar performance once cells are loaded


25Mbps service

Example KPI

4.5 Mbps Avg. Cell throughput

Advantage ofcarrier frequency

fades away

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0 1 2 3 4 5 6 7 8 9 100

10

20

30

40

50

60

Served Cell Throughput [Mbps]

MeanUserThroughput[Mbps]

Micro Cell ISD=100m

700MHz - Mean

700MHz - 5%

700MHz - 95%

2140MHz - Mean

2140MHz - 5%

2140MHz - 95%

2665MHz - Mean

2665MHz - 5%

2665MHz - 95%

Small Cell ISD = 100m

[D

L]MeanFTPRLCu

serthroughput/Mbp

s



25Mbps service

Example KPI

6.5 Mbps Avg. Cell 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

Higher Carrier FrequencyPerforms as EQUALLY toLower Carrier Frequency

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0 1 2 3 4 5 6 7 8 9 100

10

20

30

40

50

60

Served Cell Throu h ut Mb s

MeanUserThroughput[Mbps]

Micro Cell ISD=100m

700MHz - Mean

700MHz - 5%

700MHz - 95%

2140MHz - Mean

2140MHz - 5%

2140MHz - 95%

2665MHz - Mean

2665MHz - 5%

2665MHz - 95%

25Mbps service

>6.5Mbps

0 2 4 6 8 10 120

10

20

30

40

50

60


MeanFTPRLC

UserThroughput[

Mbps]


700MHz - Mean



2140MHz - Mean


2140MHz - 95% (Cell centre)2665MHz - Mean



25Mbps service

~4Mbps~3Mbps

Comparing

Large Macro Cell & Pico Cell

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

Small Cell ISD = 100m


~18Mbps service

25MbpFTP service Macro cell Pico Cell

2.6GHz ~2.5 Mbps ~6.5 Mbps

700MHz ~4 Mbps ~6.5 Mbps

Small Cells & 2.6GHzare Complementary & Provide

Higher Overall Network Capacity

[D

L]

[DL]

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Deployment Options

ComparingDifferent Cell Size on

2.6GHz PerformanceBased on 20Mbps service

Pico cells provide~800 Mbps/km2

Micro cells provide~70 Mbps/km2

Large cells provide

~4 Mbps/km2

200 times increase inperformance of Pico Cellcompared to Macro Cell

Small cells offer Capacity solution Higher revenue

Larger cells offer Coverage solution

100

101

102

103

104

0

10

20

30

40

50

60

Offered Load Per Km2 [Mbps]

UserD

ataRate[Mbps]

ISD100 2665MHz - Mean

ISD100 2665MHz - 5%

ISD100 2665MHz - 95%


ISD500 2140MHz - 5%

ISD500 2140MHz - 95%


ISD500 2665MHz - 5%ISD500 2665MHz - 95%


ISD1732 2140MHz - 5%

ISD1732 2140MHz - 95%


ISD1732 2665MHz - 5%

ISD1732 2665MHz - 95%

20Mbps service

~800 Mbps /km2

~4 Mbps/km2

~70 Mbps/km2

(800/4)

(70/4)

200 times more networkcapacity with Pico Cell

Traffic Density Demand is Addressedthrough The Right Selection of Cell Size

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Deployment Options

LTE2G/3G

LTE

LTE

HSPA

LTEFemto

LTE

LTE

1

3

4

1

2

2

3

Capacity DrivenHotspots and high traffic zones

New Business DrivenFemto and hotspot islands

3

2

4

1

1

2

4

3

LTE deployment drivers

Coverage DrivenMacro deployment

IndoorBBU

MacroRRH

OutdoorBBU

Femto

Residential

Indoor & Outdoor Distributed eNB

LTE Femto & Small cell eNB

Femto

Enterprise

Residential / SOHO Enterprise for indoor private Outdoor Public

Micro / Pico

All in One Deployment for

Micro & Pico Cells

2x4W RF, 125W, 12kg

420x230x130 mm

Pico eNB (BB+RF)



Conclusions

Density of the traffic demand can be addressed by the right

selection of the cell size

Small cell solutions provide significantly higher network capacityirrespective of carrier frequencies, i.e cost effective use 2.6GHz

Small cell and higher carrier frequency complement each othertowards lower TCO with higher revenue generation opportunity

NECs vision for successful lunch of LTE is through small LTE cells

NEC offers unique portfolio of LTE /EPC solutions for all types ofapplications with a specific focus on Smal l Cel ls

Documents

Dr Hamid Falaki - NEC Europe- LTE Deployment Scenarios