TDD: A New Engine for Mobile Broadband
GTI
October, 2015
GTI : Building Global TD-LTE Ecosystem
2 2
• Construct a robust ecosystem of TD-LTE
• Speed up the commercialization of TD-LTE
• Promote the convergence of LTE TDD /FDD
Global TD-LTE Initiative is an operators-driven industry consortium aiming to:
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47 3 9
19
4
1 1 Test
Terminal/Chips
Institute
Antenna
Infra
Solution
IPX Providers
Other
27
16
7
54
4 11
Europe
North America
South America
Asia
Oceania
Africa
120 operators have joined GTI 102 vendors have joined GTI Partner Forum
Focused Area
VoLTE/RCS LTE-A and Beyond Roaming
Business and Service 3.5GHz Spectrum
The Explosive Growth of Mobile Data Traffic Results In Global Scarcity of Spectrum
Mobile data traffic per month by 2019
Source:Cisco VNI Mobile
Estimated Spectrum Requirement in 2020: 1340-1960MHz Source: ITU
Global Mobile Data Traffic will increase
1000 Times during 2011-2020
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TD-LTE Better Fit for Mobile Internet Services
D S U U D
D S U D D
D S U U U
Ratio of UL:DL mobile internet IP traffic is
about 1:8-10
UL:DL PHY Layer resources in TD-LTE
(UL:DL=1:3) is about 1:4
With dynamic TDD, 30% throughput gain could be achieved compared to fixed configuration.
Flexible Asymmetric UL/DL Capacity Dynamic TDD to boost network capacity 1 2
Current DL/UL IP traffic ratio (8-10)/1. TDD frames with 4/1 DL/UL PRB partition well suited to match spectrum allocation to IP traffic .
TDD Spectrum Becoming a Key Resource
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TDD Licensed blocks released
TDD bands in major countries and regions
Large number of TDD licenses have been released around the world
Countries and regions issued TDD spectrum
1.9GHz/2.0GHz Australia, China, Europe, Japan, Russia, South Africa, South Asia
Title in here
2.3GHz Africa, Asia Pacific, China, India, Latin America, Middle East, Russia
2.6GHz Africa, Arabia, Brazil, China, Europe, Japan, Latin America,
North America, Saudi India
3.5GHz Europe, Japan, Latin America, North America, Russia,
China(planning)
700MHz China is planning and testing
120+
600+
•345MHz allocated for TDD •Considering more TDD spectrum on Band 700MHz, 1.4GHz, 3.5GHz
•233.9MHz allocated for TDD •3.5GHz LTE-A TDD service will be commercialized around 2016
•160MHz allocated for TDD
•190MHz allocated for TDD
China Japan India
US
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E2E TD-LTE industry maturity, especially in the terminal and chipset, could meet demands of large-scale commercial deployment
2050+ TD-LTE terminals have been launched
TD-LTE Commercial Scale Explosively Growing ---Highly Mature Industry
10 Infrastructure Vendors
320+ Terminal Vendors
20+ Test Equipment Vendors
High-end market
920+ TD-LTE terminals supporting LTE FDD
Low-end market
50 USD
iPhone 6/6S Samsung Note 5
TD-LTE Commercial Scale Explosively Growing ---Global Market
317 million TD-LTE subscribers,
42.8% of the total LTE subscribers
1.2 million TD-LTE base stations,
44.4% of the total LTE base stations
Target towards
2020 200+
Commercial networks 100+
Converged networks 5million+
Base stations 1billion+
Subscribers
Commercial Networks Planned Networks
Current Status
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Exciting TD-LTE Global Market
> 60% networks are 2.3GHz (B40) and 2.6GHz (B41). Other are 3.5Ghz band (B42/43)
1.9GHz is also coming
EMEA MGF/MTS H3G STC/Mobily Telkom
America Sprint Sky/On Bell Sasktel
Asia Pacific China Mobile SoftBank Bharti Airtel Aircel Optus
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2.6GHz(B41) Global Market
Commercial Networks
Planned Networks
Base Stations
Infra Devices
Deployment
All Global Tier-1 Infra Vendors Support B41 >330 B41 LTE TDD devices
Samsung Note 5
Apple iPhone 6/6S
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3.5GHz (B42&43) Global Market
3.5GHz Holds the Biggest Potential
• 400MHz wide spectrum
promises to make a major
contribution
• Over 50% of WiMAX legacy
networks is 3.5GHz, evolving to
LTE TDD now
Global 3.5GHz Overwhelmingly for TDD
Europe: TDD mode is preferred
Japan: TDD only ,to be
commercialized in 2016
China: TDD only, completed
verification
Canada: TDD only
Mid East: WiMAX BWA
Africa: some for WiMAX BWA
South America: 40+ WiMAX
Around 50% of
TDD Licenses are 3.5GHz
3.5GHz
Other bands
Planned Networks Terminals Commercial Networks
Deployment and Devices
Converged LTE TDD/FDD Provides a Best Solution to Mobile Broadband
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converged commercial
networks
920+ types support
both TD-LTE and LTE FDD
Handover : LTE TDD/FDD
= GSM900/1800
LTE TDD/FDD:
One OMC
Networks Types of Device Handover O&M
Converged LTE TDD/FDD
TDD Will Play an Important Role in the Evolution from 4G to 5G
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Massive MIMO: 3D-BF
Rich Spectrum
128T128R
Channel Reciprocity
>1800MHz
TDD occupies rich spectrum
470~694MHz
3.4~3.8GHz
4.2~4.99GHz
3.8~4.2GHz TDD
More suitable
for large continuous spectrum use
Spectrum Efficiency
> 60MHz
TDD large channel bandwidth
system bandwidth
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Release of GTI Future Spectrum White Paper
01 Identify more frequency bands to facilitate future IMT development
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Bands below 6GHz are the core bands used for IMT today, with C band being a key range
Bands above 6GHz can also be utilized by IMT and the candidate frequency ranges to be studied should be kept as wide as possible
Future Spectrum
White Paper
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TDD can better fit with the large contiguous bandwidth allocation and more efficiently utilize the spectrum for high data rate services
Global harmonization of future spectrum should be targeted considering the benefits in economies of scale
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