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1
TDD Paves the Way to 5G
XGP TDD Forum 2016 in Osaka
2016-11-29
Göran Berntson
Huawei
2
ROADS to Networks of 2020
Real-time
On demand
All online
DIY
Social Industry 4.0
Big Data Social Network Artificial Intelligence
BYOD VR/AR
xGbps Cloud IoT
3
Different Challenges and Gaps to Reach 5G
Network
Architecture
Slicing Ability
Required
Connections
1,000K Connections
Per Km2
Mobility
500km/h
High-speed
Railway
Throughput
10Gbps
Per
Connection
Latency
1 ms
E2E
Latency
5G
100Mbps 10K 350Km/h 30~50ms Inflexible
LTE
GA
P 30~50x 100x 100x 1.5x NFV/SDN
4
TDD Advantages Pave the Way to the Future
Experience @
High Freq Band
Architecture:
CloudRAN
New Air Interface
Smooth 5G Evolution
4.5G (TDD+) Prepared
Benefit from D-MIMO with
CloudRAN
3.5GHz is the most popular
candidate 5G band @ sub-6GHz
Key Technologies:
Massive MIMO
Benefit existing TDD UEs
Hardware evolve to 5G
Vertical Markets
Start incumbent new
ecosystem
5
Huge amount of TDD Spectrum is a Gold Mine
1540MHz TDD Spectrum
Released by 2020
Sub-6GHz
33.25GHz Candidate TDD Spectrum
After 2020
200MHz@4.8GHz
100MHz@4.4GHz
400MHz@3.8GHz
400MHz@3.5GHz
100MHz@3.3GHz
200MHz@2.6GHz
100MHz@2.3GHz
40MHz@1.9GHz
Above 6GHz
Group 80GHz
Group 50GHz
Group 40GHz
Group 30GHz
* source from GTI 2.0
6
Massive MIMO: Incredible 5x Capacity for Urban Hotspot
Resource shared between users
Traditional 4G
Shared broadcast beam for all users
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Massive MIMO: Incredible 5x Capacity for Urban Hotspot
• Squares • Stadiums… CBD skyscrapers • Dense residential
• Universities • Stations • Shopping malls
Multiple user reuse same resource
4.5G Massive MIMO
5x Capacity
4G Compatible
5G Evolution Massive MIMO
User-specific beam for each user
8
Time Elastic
TDD Beamforming + CloudRAN
Enable Elastic UCN (User Centric Network)
BS Centric Network User Centric Network
User follow cells Cells follow user
based on TDD beamforming
Geographical Elastic
• Dynamic user sensing & nodes selection
• Resource sharing & coordination
• Mutual help for single node breakdown
Spatial multiplex
for best capacity
Joint transmission
for best signal
Idle Busy
9
TDD can Support 30% High-Speed IoT Market
2B
(70％)
0.8B
(25％)
0.2B
(5%)
Logistics
Advertisements
Wearables…
Video Monitoring
Artificial Intelligence…
eMTC
Monitoring & Control
• Bandwidth > 1Mbps
• High responsiveness
• 50kbps ~ 1Mbps
• Voice
• Low speed videos
• Medium responsiveness
Vehicle Controlling
Smart metering
Data collecting
…
NB-IoT • < 50kbps
• Low ARPU, Massive connections
• Deep coverage required
• Cost sensitiveness
NB-IOT: Not Applicable for TDD
10
SUMMARY: TDD Advantages Pave the Way to the Future
Experience @
High Freq Band
Architecture:
CloudRAN
New Air Interface
Smooth 5G Evolution
4.5G (TDD+) Prepared
Benefit from D-MIMO with
CloudRAN
3.5GHz is the most popular
candidate 5G band @ sub-6GHz
Key Technologies:
Massive MIMO
Benefit existing TDD UEs
Hardware evolve to 5G
Vertical Markets
Start incumbent new
ecosystem
11
5G
2015
2020
4.5G MBB 2020 2009
LTE-Advanced Pro
2012
4G
R8 R10 R13
5G Tech into 4G
4.5G the Step to MBB2020
Reuse Infrastructure
Fostering Service & Eco-Sys
• 1Gbps
• 10ms
• 100K connections
• 100Mbps
• ~30+ms
• 10K connections
• 10Gbps
• 10ms
• 1000K connections
Thank you Copyright©2016 Huawei Technologies Co., Ltd. All Rights Reserved.
The information in this document may contain predictive statements including, without limitation, statements regarding the future financial
and operating results, future product portfolio, new technology, etc. There are a number of factors that could cause actual results and
developments to differ materially from those expressed or implied in the predictive statements. Therefore, such information is provided for
reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice.
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