Post on 04-Apr-2018
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
7/31/2019 Dr Hamid Falaki - NEC Europe- LTE Deployment Scenarios
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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
2140MHz - 5% (Cell edge)
2140MHz - 95% (Cell centre)
2665MHz - Mean
2665MHz - 5% (Cell edge)
2665MHz - 95% (Cell centre)
[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
[Downlink ]
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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
2140MHz - 5% (Cell edge)
2140MHz - 95% (Cell centre)
2665MHz - Mean
2665MHz - 5% (Cell edge)
2665MHz - 95% (Cell centre)
Large Macro Cell ISD = 1732m
[D
L]MeanFTPRLCu
serthroughput/Mbp
s
[DL] Served Cell Throughput/ 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
Carrier Frequency Impact for different ISD
4 Mbps Avg. Cell throughput
~25 Mbps service
~18 Mbps service
Higher Frequenciesin Macro Cells provide
Reduced QoE to Users
[Downlink ]
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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
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)
Micro Cell ISD = 500m
[D
L]MeanFTPRLCu
serthroughput/Mbp
s
[DL] Served Cell Throughput/ Mbps
Micro cells of ISD = 500m
Carrier freq. deliver similar performance once cells are loaded
Carrier Frequency Impact for different ISD
25Mbps service
Example KPI
4.5 Mbps Avg. Cell throughput
Advantage ofcarrier frequency
fades away
[Downlink ]
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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
[DL] Served Cell Throughput/ Mbps
Carrier Frequency Impact for different ISD
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
[Downlink ]
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Carrier Frequency Impact for different ISD
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
Served Cell Thou h ut Mb s
MeanFTPRLC
UserThroughput[
Mbps]
Suburban Macro Cell ISD=1732m
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)
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
Large Macro Cell ISD = 1732m
~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]
[Downlink ]
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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 - 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%
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)
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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 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
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