Hong Kong, China:
The Case for LTE 2.6 / 1.8 GHz and DC-HSPA+
Paul Wang
Technology Planning, CSL
1
Agenda
CSL Overview and Current Situation
The Need for LTE at 2.6 and 1.8 GHz
The Need for DC-HSPA+
Roaming Considerations
Conclusions
2
CSL is Hong Kong’s Leading Mobile Operator
Established in 1983, CSL was Hong Kong’s first mobile operator
Subsidiary of Telstra, Australia’s leading operator
Awarded a 4G FD-LTE 2.6 GHz license in January 2009
First to launch All IP 21 Mbps network in March 2009
Started a wide-area LTE Trial in November 2009
Launched World’s First Dual Band 2.6G/1.8G LTE/DC-HSPA+ network in
November 2010
3
The Need for LTE at 2.6GHz and 1.8GHz
(1) Capacity
(2) Coverage
4
The Mobile Data Explosion Continues
110
90
80
Data Traffic > 100X since Next G launch in Mar-09
Data Traffic still growing 4X YOY
Data Traffic > 85% of total network traffic
LTE/DC-HSPA+
Launch
iPhone 4
70
60
World Cup
50
40
Next G
Launch
30
20
Mar-11
Feb-11
Jan-11
Dec-10
Nov-10
Oct-10
Sep-10
Aug-10
Jul-10
Jun-10
May-10
Apr-10
Mar-10
Feb-10
Jan-10
Dec-09
Nov-09
Oct-09
Sep-09
Aug-09
Jul-09
Jun-09
May-09
Apr-09
Mar-09
Feb-09
Jan-09
Dec-08
Nov-08
Oct-08
Sep-08
0
Aug-08
10
Jul-08
Relative Daily Data Usage
100
5
CSL – Current Spectrum Holdings
Allocation
Use
900 MHz
8.3 MHz X 2
2G + 3G
1800 MHz
23 MHz X 2
2G + LTE
2100 MHz
14.8 MHz X 2
5 MHz X 1
3G (DC-HSPA+)
2600 MHz
15 MHz X2
LTE
Total
127.6 MHz
6
The Data Explosion – the Need for LTE
1.8G LTE Capacity
2.6G LTE Capacity
Forecasted Data
Demand
3G Capacity
2010
LTE at 1800MHz and 2600MHz is Needed to Meet Traffic Demand
7
Coverage – Leveraging Existing DAS
Admiralty MTR Station
Cross-Harbour Tunnel
HK is a very mature mobile network with nearly 50% of sites
located indoors
Use LTE 1800MHz to provide coverage and leverage existing
DAS investments
Times Square, Causeway Bay
8
The Need for DC-HSPA+
9
LTE Being Built in Busy Areas First
LTE 1800/2600 MHz
Performance/Capacity
Layer
UMTS 900/2100 MHz
DC-HSDPA
Coverage Layer
LTE 1800+2600 is Required For Deployment and Capacity Reasons;
DC-HSPA+ is Required as the Coverage Layer for LTE
10
DC-HSPA+ as LTE Coverage Layer
Performance
LTE (2.6 / 1.8)
Performance Layer
DC-HSPA+
Coverage Layer
LTE (15MHz)
DL: ~4X
UL: ~5X
DC-HSPA+
DL: ~2X
UL: ~1X
HSPA+
Baseline
DL: 1X
UL: 1X
DC-HSPA+ Required to Maintain User Experience
11
Roaming Considerations
12
LTE/DC-HSPA+ Global Roaming
Asia
LTE 1800/2600
UMTS 900/2100
Europe
LTE 800/1800/2600
UMTS 900/2100
Americas
LTE 700/AWS
UMTS 850/1900/AWS
Australia
LTE 1800
UMTS 850/2100
A global device should
have the following
minimum frequency
support:
DC-HSPA+ 850MHz
DC-HSPA+ 900MHz
DC-HSPA+ 2100MHz
LTE 1800MHz
LTE 2600MHz
13
In Closing
CSL is deploying LTE @ 1800MHz for capacity and coverage
reasons
Device support for LTE 1800MHz + DC-HSPA + Roaming
bands is critical
14
Thank You!
15
Introducing the First LTE/DC-HSPA+ UE
Collaboration with ZTE and Qualcomm since November 2009
Bring a device optimized to bring best customer experience leveraging 3G
and LTE networks
Frequency and Technology Support
LTE-FDD 1800 / 2600 MHz
DC-HSPA+ 850 / 900 / 2100 MHz
EDGE/GSM 900 / 1800 MHz
Peak Data Rates:
LTE: DL 100Mbps / UL 50Mbps
DC-HSPA+: DL 42Mbps / UL 5.76Mbps
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