This document discusses driving broadband innovation in the UAE using du's LTE evolution. It begins with an overview of du's broadband portfolio including mobile and fixed network services. It then discusses why LTE is important for speed enhancement, latency reduction, quality of service capabilities, and a simple flat architecture. The document outlines LTE evolution and spectrum options, and discusses du's deployment strategy and trial results showing improved speeds and latency compared to earlier technologies like HSPA+.

1. DRIVING BROADBAND
INNOVATION IN UAE; DU
LTE EVOLUTION
Dr. Ayman Elnashar
Sr. Director - Wireless Broadband &
Site Sharing
EITC (du) - UAE

2. Agenda
 Driving Wireless Broadband Innovation
in UAE: du Broadband Portfolio
 Why LTE (Data Evolution)
 Speed Enhancement
 Latency Reduction
 Rich QoS capability
 All IP Simple flat architecture
 LTE Evolution
 Spectrum Options
 Deployment Strategy
 Trial Results

3. du Broadband Portfolio
du Fixed network
Nationwide Mobile Broadband LTE Evolution
Services
HSPA+/DC-HSPA+ (42Mbps)*
FDD Technologies Fixed xDSL & Fiber
„Ultra Broadband‟
Wide Area
Broadband
Mobile
2G 2.5G 3G 3.X G
everywhere
Coverage/Mobility
Local Area Metro Area
du UAE Nationwide
Fixed Wireless Nomadic
Mobile Network 802.11b/a/g/n
TDD Technologies
802.16d
WiMax in 3.5GHz for du WiFi
small SME Hotspots
Fixed Wireless Broadband
services using OFDM (PTP &
PTMP) high capacity Links with up
to 300Mbps for SME and
Enterprise customers
Data Speeds (Kbps) Fixed Wireless
* Du is the 1st in UAE to deploy the DC-HSPA+ nationwide and UAE is the 6th
nation globally to deploy this technology thanks to du.
3

4. Why LTE?
4

5. 3GPP Evolutions; HSPA + & LTE
5

6. HSPA+ vs. LTE Peak Data Rates DL/UL
LTE
326Mbps
HSPA+ (WCDMA) LTE (OFDMA)
scales linearily scales linearily in
Throughput
in bandwidth (multi carrier) bandwidth (single carrier)
and proportionally in and in single user-MIMO
single user -MIMO (max. factors (max. 4x4) LTE
2x2) 173Mbps
86Mbps
LTE LTE
43Mbps 86Mbps
21Mbps 43Mbps
HSPA+ HSPA+(DC)
42Mbps 84Mbps* 86Mbps MIMO
11Mbps 22Mbps* 43Mbps Rx/Tx
LTE
HSPA+ 4
43Mbps
LTE DL:21Mbps 21Mbps 2
DL:5Mbps UL:11Mbps
1
1.4Mhz 10Mhz 20Mhz Bandwidth
5Mhz
* Chipset Roadmap delayed for 2012 and we may need additional carrier to get the peak
throughput as MIMO will not add any gain for voice (R99).
Page 6

7. HSPA+ vs. LTE
HSPA+ LTE
172Mbps@20Mhz (2x2)
Peak Rate 84Mbps@10MHz
326.4Mbps@20MHz(4x4)
Spectrum Efficiency 8.4bps/Hz (Peak for DC+ MIMO
8.6bps/Hz (Peak for 2x2 MIMO)
(Peak) + 64QAM)
Spectrum Efficiency 1.717/0.99 (2x2 MIMO)
(Average cell 1.424/0.6 (MIMO+64QAM) 20% improvement in DL
throughput) (DL/UL) 65% improvement in the UL
Transmission
Full system bandwidth Variable up to full system bandwidth
bandwidth
Ideal for MIMO due to signal
Requires significant computing
representation in the frequency
power due to signal being
Suitability for MIMO domain and possibility of narrowband
defined in the time domain and
(i.e., MIMO Gain) allocation to follow real-time variations
on top of spreading (frequency
in the channel
selective channel)
(Frequency nonselective channel) 7

8. HSPA+ vs. LTE Latency Improvement
Latency
Control plane Idle -> active
LTE 100 User plane latency (RTT)
13
HSPA+ 800
40
1800
HSPA
55
0 200 400 600 800 1000 1200 1400 1600 1800
D e l a y ( ms )
Delay to access a 60kByte web page
2500 2350 HSPA
2000 HSPA+
LTE
Delay (ms)
1500 1200
1000
500 300
WOW
0
HSPA HSPA+ LTE
For web site access response, LTE requires ¼ of
time of HSPA+ and 1/8 of HSPA
Page 8

9. LTE versus DC-HSPA+: LTE will Bring
Significant improvements
LTE is the next step in the user experience and essential to take
mobile broadband to the mass market

10. LTE Brings More New Data Services than HSPA+
Data application GPRS/EDGE UMTS LTE
SMS ★ ★ ★
Ring back Tone ★ ★ ★
Basic online Gaming ★ ★ ★
MMS ★ ★ ★
WAP browsing ★ ★ ★
Email ★ ★ ★
“Classic” WEB browsing ★ ★ ★
Video Ring Back Tone ★ ★
High-end Gaming ★ ★
High quality online video ★ ★
Video telephony ★ ★
“Super-fast” WEB browsing ★ ★
Broadcast Mobile TV (MBMS) ★ ★
Corporate VPN, intranet ★ ★
true on-demand television ★
Video-based mobile advertising ★
Wireless DSL ★
Mobile WEB2.0 (social community, P2P) ★
High quality online gaming (consistent experience with fix network) ★
Page 10

11. LTE Brings Better MBB Experience than HSPA+
Technology EDGE UMTS HSPA HSPA DC-HSPA+ LTE
56kbps 512kbps 2Mbps 8mbps 42Mbps 100Mbps
(Cell Throughput)
Web surfing 36 Seconds 4 Seconds 1 Second 0.3 Second 0.1 Seconds 0.025
Second
(response time)
Download 5M 12 Minutes 1Minutes 20 Seconds 5 Seconds 2 Seconds 0.5 Second
18 seconds
Music
Download 25M 1 Hour 6Minutes 1 Minute 25 Seconds 8 Seconds 2 Seconds
31Seconds 40Seconds
Video
Download 750M 29 Hours 3 Hours 50 12 Minutes 4 Minutes 1 Minutes
15 Minutes Minutes 30 Seconds 10 Seconds 20 Seconds
HD movie

12. LTE Network: A Simple Architecture
leads to lower cost per bit
Simplified/Flat All IP Architecture:
 CS core network removed – PS only
 UMTS RNC “removed”, RNC functionalities moved to the eNodeB
 eNodeB connected directly to the Evolved Packet Core (EPC) 12

13. QoE Expectations and Performance
Requirements by Service Type
13

14. 3GPP QoS Parameters: QCI
Resourc Packet Packet
QCI e Priority Delay Loss Example Services
Type Budget Rate
1 2 100ms 10-2 Conversational Voice
2 4 150ms 10-3 Conversational Video (live streaming)
GBR
3 3 50ms 10-3 Real Time Gaming
4 5 300ms 10-6 Non-conversational Video (buffered streaming)
5 1 100ms 10-6 IMS Signalling
Video (Buffered Streaming); TCP-based (e.g. www,
6 6 300ms 10-6 e-mail, chat, ftp, p2p file sharing, progressive video,
etc.)
Non-
7 GBR 7 100ms 10-3 Voice, Video (Live Streaming), Interactive Gaming
8 8 Video (Buffered Streaming); TCP-based (e.g. www,
300ms 10-6 e-mail, chat, ftp, p2p file sharing, progressive video,
9 9 etc.)
 The QCI is further used within the LTE access network to define the control packet-forwarding
treatment from an end-to-end perspective.
 It also ensures a minimum standard level of QoS to ease the interworking between the LTE
networks mainly in roaming cases and in multi-vendor environments
 PDB defines an upper bound delay that a packet is allowed to experience between UE & PCEF

15. LTE
Evolution
15

16. Key Technologies of LTE
16

17. OFDM, the state-of-the-art Radio Access Technology:
Moving from Time Domain to Frequency Domain
17

18. Why OFDM/SC-FDMA
 Robustness against multipath which makes it
suitable for broadband systems compared to
TDMA/CDMA techniques.
 SC-FDMA brings additional benefit of low peak-to-
average power ratio (PAPR) making it suitable for
uplink transmission and then extend UE battery life.
 Receiver design is very simple thanks to frequency
non-selective (i.e., flat fading) channel.
 OFDM is inherently susceptible to channel
dispersion since OFDM symbol time is much larger
than the typical channel dispersion.
18

19. MIMO: the Key to Improve Cell Throughput
1x2 SIMO
eNodeB UE 1
2x2 MIMO
eNodeB UE 1
In typical urban area:
 15%~28% gain over SIMO @ Macro
 ~50% gain over SIMO @ Micro
19

20. LTE key features Simplified Architecture
 IP Core: flat, scalable
 Backhaul based on IP / MPLS
transport
Gateway  Fits with IMS, VoIP, SIP
Improved spectral efficiency
 Orthogonal Frequency Division
Multiple Access (OFDMA) for
Downlink (DL) and Single Carrier
Frequency Division Multiple Access
(SC-FDMA) for Uplink (UL)
All IP Flat Architecture  Robust modulation in dense
environments
 Increased spectral efficiency
 Simplified Receiver design 
cheaper terminal
 Scalable - go beyond 5 MHz
1.4 MHz 3 MHz 5 MHz 10 MHz 15 MHz 20 MHz
limitation
Refarm 2G Refarm 3G New Spectrum
 MIMO (Multiple-Input, Multiple-
Output) for UL& DL
Scalable Bandwidth
 Increased link capacity
 Multi-Users MIMO (UL)
 Overcome multi-path interference
Increasing Bandwidth Decreasing Latency Page 20

21. Spectrum
Options
21

22. LTE Spectrum and Re-farming Options
Freq. Bands
3.5 GHz WiMAX
LTE?
WiMAX?
2.6 GHz LTE
2.1 GHz LTE?
1800 MHz LTE
GSM
UMTS / HSPA?
GSM UMTS / HSPA
900 MHz
LTE
DD UMTS / HSPA?
LTE
2008 2010 2015 2020 2025
 New Bands well suited for LTE to avoid refarming when introducing new technology
 2.6GHz spectrum mainly for LTE
 “Digital Dividend” (e.g. 800MHz/700MHz bands): Trend is to use it for LTE
 2.1GHz spectrum: bandwidth mostly for UMTS/HSPA/HSPA+ and few countries for LTE
 900MHz, 1800MHz, AWS re-farming is needed before UMTS/HSPA or LTE usage
 900MHz refarming already started for UMTS usage => may not be possible to use it for LTE in most
of countries
 1800MHz will be re-farmed directly to LTE
 AWS is planned for LTE use in North America
Possible rollout scenarios: LTE 2.6GHz/AWS/1.8GHz/DD vs. HSPA+
2.1GHz/900MHz
Page 22

23. Why LTE 1800
 Coverage area is about 2X larger than LTE2.6GHz
with better indoor penetration.
 35% improvement in cell edge throughput
compared to LTE2.6GHz.
 Reduction of Extra sites results in quick delivery of
the LTE to market.
 Reuse of existing GSM1800 coverage polygons and
possibility to share antenna system of GSM1800.
 Reuse of existing IBS system without upgrade to
support 2.6GHz and without coverage degradation.
LTE1800: promising and available
for mass market 23

24. Deployment
Strategy
24

25. Antennas Separation and Guard Band
Requirement for Co-Existing System
Horizontal Distance: 0.5m 2/3G band x
Vertical Distance: 0.2m
LTE band x
2/3G band x LTE band x
Horizontal 0.5m or vertical 0.2m antennas separation is the minimum requirement
Guard band Requirement for Co-existing Systems ( MHz )
LTE Bandwidth
Co-existing Systems
5MHz 10MHz 15MHz 20MHz
LTE1800 + GSM1800 0.2 0.2 0.2 0.2
LTE Band X + LTE Band Y 0 0 0 0
LTE FDD + LTE TDD 10 10 10 10
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26. 26

27. Download Volume Speed (1GB and 10GB )
27

28. Thank You
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