Recent Advances on 5G Research

Prof. Xiaohu YouSoutheast University

October 19, 2016

Outline

• Background and Overviews• 5G R&D Promotion in China• Some Progresses of 5G Research at SEU

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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

M-MIMO, UDN…

Enhancement of both Capability and Efficiency by Each Generation

pSE=0.5

pSE=1-3

pSE=5-15

New Applications

Main Driving Force of 5G

2000s1990s2020s2010sPC Desktop Internet

Mobile Internet

IoT/MTCVoice Data

Unconnected Machine

Main Driving Force: eMBB and vertical applications

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• 2010-2020, 300 fold in China, 1000 fold in Beijing

• 2010-2030, 40,000 fold increase in Traffic

Thousand fold Increase in Traffic 100 billion MTC

• Up to 2020, 10 billion mobile terminals

• Up to 2030, 100 billion MTC

5G Vision & Requirements

Source: IMT2020 (5G) PG

China’s Activities ITU’s Activities

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5G Application Scenarios & KPIs

Source: IMT2020 (5G) PG 6

5G’s Possible Evolution

Source: CATR7

5G Key Technology

Massive MIMO New MA All Spectrum

New Waveform Flexible Duplex Full Deplex Spectrum Sharing

Ultra Dense Net

D2D

F-OFDM/UFMC/FBMC

Novel Codes

多元LDPC, 极化码, 网络编码, APSK等

• 低频与高频混合组网

Core Technology

Other Key Tech

时域

频域

码域

• SCMA / PDMA / MUSA

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5G Network Architecture: Cloud & Slicing

Source: IMT2020 (5G) PG

Driven by 5G requirements and new IT technologies, e.g., NFV & Network Slicing, 5G network can be re-constructed into a triple-cloud architecture in logic

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5G Spectrum Issue

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3.3-3.6

Outline

• Background and Overviews• 5G R&D Promotion in China• Some Progresses of 5G Research at SEU

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863 5G Project

Spectrum Requirements EnablingTechniques IPR

Mega ProjectFor NG Mobile

5G(TD) Alliance FuTURE Forum（Open 5G）

IMT-2020(5G) Promotion Group

Promotion Framework

Int’l CoopIndustry

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5G Research Projects in China

National Science and Technology Mega Project

National 863 Program2014 2015

2015 2016Overall & Component•5G Standardization•AD/DA for Base

Station •High-Freq PA for Base

Station•High-Freq Filter for

Base Station

Wireless Technology•Wide-Area Coverage•Low-Power Massive-

Connections•High-Freq. Comm.•Ultra-Dense Network•Novel Multiple

Access

Network & Service•RAN Architecture •5G Indoor

Positioning•Key Technology

for Self-Driving Cars

Overall

•Network Architecture

•Standard Evaluation Platform

•Analysis and Evaluation on Candidate Bands

Technology

•mmWave Key Technologies

•Low-Latency High-Reliability Solution

•Next Generation WLAN

•Network Architecture & Key Tech.

•Evaluation & Test Methodologies

•RAN and System Security•Advanced Modulation and

Coding

•General Technology•Wireless Key Technology

•Soft Base Station Test Bed•mmWave Indoor Access•Wireless Network Virtualization

2015

Open to all the companies registered in China, including domestic and foreign companies

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 2014/2015

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IMT-2020 (5G) Promotion Group Structure Expert Committee

Requirement WG

Spectrum WG

WirelessTech. WG

NetworkTech. WG ITU WG 3GPP WG IEEE WG IPR WG

Secretariat

• The Group has 50+ members including the main operators, vendors, universities, and research institutes in China.

IMT-2020 (5G) Promotion Group is the major platform to promote 5G research in China

• Official website: www.IMT-2020.cn

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IMT-2020 (5G) Promotion Group ActivitiesIMT-2020 (5G) Summits 5G White Papers

International Cooperation

• 2013: 5G Vision

• 2014: 5G Objective & Capability

• 2015: 5G Technology Architecture

• May 2014: 5G Vision and Requirements

• Feb. 2015: 5G Concept

• May 2015: 5G Wireless Architecture

• May 2015: 5G Network Architecture

IMT-2020 PG will be more open to co-work with the global industry

• 2016: 1st Global 5G Summit

5G Technology R&D Trial

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• Promote the development of 5G key technologies• Verify and improve 5G technical schemes• Support the global unified 5G standardization

Main Objectives

2016 2017 20202015Step 1: Key tech trial

Step 3: System trial

2018 2019

Phase 1: Technology R&D Trial

Phase 2: Product R&D TrialStep 2: Tech scheme trial

5G Technology R&D Trial2016-01-07

Infrastructure Chipset InstrumentResearch Operator

Outline

• Background and Overviews• 5G R&D Promotion in China• Some Progresses of 5G Research at SEU

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Cloud Architecture based on massive GPPs, Sync-Ethernet with dense 100/40/10Geinterconnection.

Massive MIMO

Wireless OpticalMillimeter Waves& VLC

Denser Net

An Open 5G System Architecture Implementation

SON/SDN/NFV

Source: 2011 Cooperative Wireless Center @ SEU

Other possible

scenariose.g. IoT

Three Networking Mechanisms for ultra dense networkCooperation (Ideal connection for joint SP - network performance limit)Coordination (limited information exchange – distributed network optimization) Game-Based Competition (no information exchange needed - Nash EP)

A generalized wireless architecture for Ultra Dense Net

2016/10/19

Initial Evaluation & 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

2016/10/19 22

The Common Model for both Massive MIMO and D-RANWith ideal Connections

Co-located or Distributed

AntennasThe bottleneckCalibration for DL

2016/10/19

Why Massive Cooperation Nodes: More Cooperation, More Gain - the Uplink Case

Gain in EE

Gain in SE(1,2,7)

X. You et al, Cooperative distributed antenna for mobile communication systems, IEEE Wireless Communications, June, 2010D. Wang, J. Wang, X. You, Spectral Efficiency of Distributed MIMO Systems, IEEE Journal on Selected Areas in Communications, Vol.31 , vol. 10 , 2013

5G Open Platform

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A Hybrid Cloud RAN Architecture Based on Sync-Ethernet & MSTP/Trill

Freq: 3.5GHz/6-11GHz Bandwidth: 100/500MHz Antenna Number: up to 1024 Centralized/Distributed Tx Timing Sych < 30ns with IEEE 1588 PTPv2 Rx Processing Delay < 15uSMassive GPPs up to 10K CPU Cores Auxiliary HW Accelerators Private Ethernet & MSTP/Trill SON/SDN/NFV Applicable24

Source: Cooperative Wireless Center @ SEU

Testbed Implementation of 5G Open Platform @ SEU

Real Time Cloud ComputingMesh Connected Ethernet

Radio Head

Mobile Terminal

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Key Parameters of the RRU Module Channel：8 Signal BW：≥100MHz RX Direct IF Sample, 983.04 MSPS TX Direct Digital Synthesis, 1966.08 MSPS Perfect I/Q Performance I/Q Rate：122.88MSPS Fiber interface

QSFP+ 40G LR4 Fiber：SMF，2 cores Connector：LC

Implementation of RRU

mmWave: MMIC and Demo System

• Single Chip CMOS MMIC• Wire-bond packaging• Antenna on board (12dBi )• QPSK: 7m, 7.04Gb/s• 16QAM: 4m, 14.08Gb/s

MMIC & TRX @ 60GHz863 Project Headed by UESTC & SEU

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System Synchronization via SyncE/1588v2

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For our common wireless future!