5g mobile communica@ons in china
TRANSCRIPT
5G Mobile Communica0ons in China
Xiaohu You Professor & Director
Na0onal Mobile Communica0ons Research Laboratory Southeast University, P. R. China
Outline
• Background and Recent Research Advances in China • Na0onal High-‐Tech R&D Program: 863-‐5G Project • Open PlaSorm and Some Enabling Technologies
3
1G
2G
3G
4G
GSM, cdmaOne(IS-‐95)
WCDMA, TD-‐SCDMA, CDMA2000
LTE/LTE-‐Advanced, 802.16m
2020:5G?
1980s
1990s
2010s
2000s
AMPS, TACS
FDMA
TDMA
CDMA
OFDM + MIMO
Roadmap to 5G
M-‐MIMO,UDN,NFV, … Enabling Techniques
New ApplicaTons
5G Application Scenarios & KPIs
Source: IMT2020 (5G) PG
5G Vision & Requirements
Source: IMT2020 (5G) PG
China’s AcTviTes ITU’s AcTviTes
5G Framework
Source: CATR
5G’s Possible Evolu0on
Source: CATR
5G Spectrum Issue
Source: IMT2020 (5G) PG
Outline
• Background and Recent Research Advances in China • Na0onal High-‐Tech R&D Program: 863-‐5G Project • Open PlaSorm and Some Enabling Technologies
10
Phase 1
Phase 2
Phase 3
2013 2014
Framework/RTT/Wireless Net
mmW/HetNet/NFV
Core Chips/Testbed
Na0on 863 5G Project
2015
National 863 5G Project (2013-2015)
Open Calls Schedule
Over 50 Par0cipants from Domes0c & Mul0-‐Na0onal En00es
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863 5G Project
Spectrum Requirements Enabling Techniques IPR
5G Innova0on Alliance
FuTURE Forum
IMT-‐2020(5G) Promo0on Group
Promo0on Framework (2013-‐2015)
Int’l Coop
Mission of 5G SIG:
Integrate the 5G research on user
requirements, service applications,
spectrum, air-interface transmission, and
network architecture, coordinating cross
-layer research, analyzing and summarizing
progresses on technical research.
Vice Chairman: WANG Xizhi (HUAWEI) GUAN
Hao (Nokia) SUN
Chengjun (Samsung)
Chairman: Chih-‐Lin I (China Mobile)
5G Research at FuTURE Forum
White Paper 2014
郊区宏蜂 ⼤大 模波束 作源 配技
宏蜂 ⼤大 模分布式 作
室内分布式 作
5G-‐863 Demonstrator
天线数128-‐512
Denser cooperaTon network
for hot-‐spot
Massive MIMO for Wide Range Coverage
Massive Distributed MIMO for Macro-‐Cells
Intelligent Resource Management and SON
Scenarios and Demonstra0on (1st Phase )
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Poten0al Direc0on: Xplore Spa0al Resource U0liza0on
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4G 5G
Typical Examples: ü Massive MIMO via spaTal beams over the coverage area; ü Denser cooperaTon network (cooperaTve small cells); ü ……
6/29/15
Possible Evolu0on of Radio Access Network EPC
Flat, Cloud & Virtualiza0on?
C-‐RAN/D-‐RAN
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Cloud Architecture based on massive GPPs, Sync-Ethernet with dense 100/40/10Ge interconnection.
Massive MIMO
Wireless OpTcal Millimeter Waves
Denser Net
5G Demonstrator:An Open Architecture
SON/SDN/NFV
Source: Cooperative Wireless Center @ SEU 16
Other possible scenarios
Outline
• Background and Recent Research Advances in China • Na0onal High-‐Tech R& D Program: 863-‐5G Project • Open PlaSorm and Some Enabling Technologies
6/29/15
Demonstration Scenarios:Centralized vs Distributed
– Large number of antenna at BS. – Large number of beams for
SDMA. – Used for large area coverage.
– Introduce the denser nodes to explore spatial domain resource.
– Used for hotspot and indoor.
Massive MIMO Distributed RAN
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The Common Model for both Massive MIMO and D-‐RAN With ideal Connec0ons
Co-‐located or Distributed A
ntennas
The boeleneck
6/29/15
Why Massive Coopera0on Nodes: More Coopera0on, More Gain -‐ the Uplink Case
Gain in EE
Gain in SE (1,2,7)
X. You et al, Coopera0ve distributed antenna for mobile communica0on systems, IEEE Wireless Communica0ons, June, 2010 D. Wang, J. Wang, X. You, Spectral Efficiency of Distributed MIMO Systems, IEEE Journal on Selected Areas in Communica0ons, Vol.31 , vol. 10 , 2013
5G Open PlaSorm Ongoing in 2014-‐2015
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A Hybrid Cloud RAN Architecture Based on Sync-‐Ethernet & MSTP/Trill
Ø Freq: 3.5GHz/6-‐11GHz Ø Bandwidth: 100/500MHz Ø Antenna Number: up to 1024 Ø Centralized/Distributed Ø Tx Timing Sych < 30ns with IEEE 1588 PTPv2 Ø Rx Processing Delay < 15uS Ø Massive GPPs up to 10K CPU Cores Ø Auxiliary HW Accelerators Ø Private Ethernet & MSTP/Trill Ø SON/SDN/NFV Applicable
21 Source: Cooperative Wireless Center @ SEU
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波束
选择波束
Source: SEU-‐Huawei Joint Research 22
48 users with 1/7 pilot/data raTo
RF Frontend Ethernet X Ethernet X Ethernet X GPPs Accelerator
Implementa0on of Massive MIMO
Massive MIMO – Beam-Domain Sparsity
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D-‐RAN – Complexity Reduc0on via Spa0al Sparsity
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Simula0on Condi0ons: 720 APs & 720 users, with single antenna for each. A factor of 24 for pilot reuse. Spa0al sparse is set to 97%.
Matrix-‐Inversion-‐Avoid Approach
Complexity Reduc0on via Spa0al Sparsity
6/29/15 25
Parallel Implementa0on in Frequency Domain
6/29/15 26
General Multi-Carrier (GMC) Link
X.Q. Gao & X.H. You et al, IEEE JSAC, vol.24, No.6, 2006
Parallel Implementa0on in Frequency Domain – Filter Bank
6/29/15 27
Parallel Implementa0on in Time Domain
Overall Parallel Implementation
System Synchronization via SyncE/1588v2
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5G: our common wireless future!