lte network qos optimization · 2018-12-19 · lte and 3g analyzers and simulators ›high...
TRANSCRIPT
LTE Network QoS Optimization
Evolution of Mobile Networks in Europe
Kimmo Aaltonen
Wireless Development Manager
November 2013
2 © 2013 EXFO Inc. All rights reserved..
Can you afford to be unsure about your network performance?
3 © 2013 EXFO Inc. All rights reserved..
Mobile Subscriber ARPU Keeps Going Down
$0,00
$2,00
$4,00
$6,00
$8,00
$10,00
$12,00
$14,00
$16,00
$18,00
$20,00
1Q10 2Q10 3Q10 4Q10 1Q11 2Q11 3Q11 4Q11 1Q12 2Q123Q12
4Q12
EMEA incumbents avrg Arpu
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… But on the Subscribers Side
0
500000000
1E+09
1,5E+09
2E+09
2,5E+09
3E+09
3,5E+09
WiMAX
LTE
GSM
W-CDMA
Mobile
0
200000
400000
600000
800000
1000000
1200000
LTE EMEA Subscribers
LTE
5 © 2013 EXFO Inc. All rights reserved.
Actual Market Pressure in Telecoms Industry
Customer
Satisfaction
Churn Rate
ARPU Revenues
Opex/Capex
QoS
-
+
-
- -
-
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Mobile Video Will Generate Over 66 % of Mobile Data Traffic by 2017
7 © 2013 EXFO Inc. All rights reserved..
Mobile Throughput - Theory vs. Reality
GSM Max 50 kbit/s
EDGE Max 200 kbit/s
UMTS 900 Max 21 Mbit/s
UMTS 2100 Max 21 Mbit/s
UMTS Dual Carrier Max 42 Mbit/s
LTE Max 100 Mbit/s
Coverage Map of Mobile Operator in Helsinki Capital Area
Average Data Speed of 3G Mobiles in Helsinki Capital Area
11.08.2011
I didn´t buy this!
I want my
money back!
8 © 2013 EXFO Inc. All rights reserved..
LTE Throughput Tests in Downtown Helsinki
If somebody could please enlighten me what is status
of these technologies in Helsinki, and when, if ever,
are we getting those 100 Mpbs speeds?
10 © 2013 EXFO Inc. All rights reserved..
Real E2E capacity test of LTE eNB (Base Station) with Simulators
E-UTRAN
S1-MME
S1-U
eNB
eNB
LTE
TEST
MOBILE
FOR
200
USERS
Data downloads FTP
Speech VoLTE, VoIP
WEB Browsing WWW
IP Services Data Generation
VoLTE
FTP
HTTP VoLTE
FTP
HTTP
Streaming Video
Video
Video
11 © 2013 EXFO Inc. All rights reserved..
Balanced Network Performance – Equal throughput for all Mobiles
60 UEs with FTP download
Stabile eNB Sheduler
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Unbalanced Network Performance – No More QoS for Mobiles
160 UEs with FTP download
Unstable eNB Sheduler
13 © 2013 EXFO Inc. All rights reserved..
Bad eNB scheduler performance = Bad Mobile QoE
Downlink
Scheduler
eNB
Channel Quality Indicator Report (CQI)
Control Information
ACK/NACK
High Speed Data Transmission
101110000111111100101001101
Scheduling functionality is not a part of the 3GPP specifications
Do you know how many mobiles subscribers your eNB scheduler can
handle inside one millisecond?
14 © 2013 EXFO Inc. All rights reserved.
How to Increase ARPU and Revenue with LTE?
Customer
Satisfaction
Churn Rate
ARPU Revenues
Opex/Capex
QoS
-
+ +
+ +
+
15 © 2013 EXFO Inc. All rights reserved..
LTE Rollout Increases CAPEX – Focus Should Be on Smart Rollout
Multi technology Wireless Network Optimizing Challenges
2G,3G,4G
RAN IOT
CS-Fallback VoLTE
Data Data
4G: S1-U
3G: Iu-PS
2G: Gb
18 © 2013 EXFO Inc. All rights reserved..
Black Box Dilemma During Network Benchmarking Tests
It is not possible to see with test mobiles what happens inside the network
19 © 2013 EXFO Inc. All rights reserved..
Cost Effective Network QoS Optimization
Test UE
OSS S GW & PDN GW
SGi S1-U INTERNET
Uu
FTP Reference Server
High Performance Network Probe - Capturing & Analysis & KPIs
eNodeB
Needs data from:
Test Mobiles - Air Interface Information (CQI …)
Network Probes – Mobile Data Information (Application delay ...)
OSS Data - Network Statistics (Success & Failure Rates …)
20 © 2013 EXFO Inc. All rights reserved..
EXFO Wireline and Wireless Solutions for LTE Rollouts
REDUCE OPEX/CAPEX
FTB Ecosystem
+ EXFO Connect
›Automatically gather and
send test reports
RESOLVE MOBILE
NETWORK ISSUES
LTE and 3G Analyzers
and Simulators
›High performance mobile
application analysis for QoS
optimization
SPEED UP ETHERNET
ROLLOUTS
The revolutionary
EtherSAM turn-up
methodology
›Single-button test that is
8x faster and guarantees
first-time-right results
PUTTING INTELLIGENCE INTO LTE ROLLOUTS