5G@CWC Prof. Matti Latva-aho, matti.latva-aho@ee.oulu.fi
7.4.2015 2 5G@CWC Research Community IoT Applications 5G Test Network RF and Antenna Implementati on Business Models 5G@CWC 5G Baseband Future Radio Access Network Optimization and Managament Spectrum Regulation and Channel Models
7.4.2015 3 Ongoing Research Themes 10GHz, small cells, >8 MIMO ~30% ~60% of total volume #1 Fundamentals on future wireless access Massive deployment of small cells, future waveforms, larger bandwidths at higher frequencies, 3D MIMO channel models #2 CWC 5G system concept #4 5G operator business models ~5% Small cells based campus network #3 5G test network 5GTN ~5% Challenger models against macrocells based operator domination WiFiUS: Jointmacs
7.4.2015 4 Existing Projects Towards 5G #2 #1 #4 #3 Tekes funded 5GTO10G 1.1.2014 31.12.2016 5G concept design Finnish view FP7 project METIS 1.11.2012 30.4.2015 Radio channel measurements & modelling, Massive MIMO, PHY&MAC Celtic+ project SHARING 1.1.2013 31.12.2015 SON for LTE WiFi Integration in small cells domain Academy project JULIET 1.1.2013 31.12.2016 Full-duplex transmission schemes in dense networks FP7 project DUPLO 1.1.2013 31.5.2015 Full-duplex transmission Tekes Fidipro project MOSSAF 1.1.2014 31.12.2018 Multi-operator spectrum sharing Academy project (WiFiUS) Jointmacs 1.1.2015 31.12.2016 5G operator businessmodels based an small cells, content caching and spectrum sharing Tekes funded 5G Test Network project 5GTN 1.1.2015-31.12.2016 Campus wide 5G testnetwork building in co-operation with 12 companies and VTT
7.4.2015 5 5Gto10G - Project Overview 3-year project over timeframe 2014-2016 Funding partners in 2015-2016: NSN, Huawei, Anite + Tekes & DCE/CWC Project volume 2014-2016: 293 person-months Project budget 2014-2016: 2.78 M Contacts: PM: Dr. Pekka Pirinen, PI: Prof. Matti Latva-aho N.N (at) ee.oulu.fi
7.4.2015 6 5Gto10G - Project Goal Develop key technology components for 5G in selected communication scenarios and verify their performance under realistic radio channels obtained through measurements. Main research themes: 1) Fundamental research on novel radio access schemes utilizing revolutional spectrum use and transmission concepts 2) Channel characterization at 10 GHz and beyond frequency bands 3) Massive MIMO transceiver RF architecture development 4) Development of complete (PHY/MAC layer) system concept draft operating at 10 GHz center frequencies
7.4.2015 7 5Gto10G - Research Topics (1/2) Co-primary spectrum sharing for small cells Application-aware joint optimization for multi-operator spectrum sharing Advanced resource sharing and interference handling in co-primary operator small cells Resource sharing algorithms under uncertainty in cooperative cellular networks Radio access and networking technologies for 10 GHz and beyond High data rate radio link techniques Ultra reliable low latency radio access and networking techniques Predictive mobility management in moving networks Traffic-aware interference management for dynamic TDD transmission/reception Energy efficient communication
7.4.2015 8 5Gto10G - Research Topics (2/2) 5G RAN concept design for 10 GHz and beyond Definitions on scenarios and key parameters Integration of technology components into the 5G RAN concept Disruptive technology solutions for 5G RAN concept Channel measurements & modeling and RF design Channel and co-existence measurements & modeling at 10 GHz and beyond RF transceivers at 10 GHz and beyond UE aspects for RF transceivers at 10 GHz and beyond Detailed planning for the second phase of the project is on-going.
7.4.2015 9 BACKUP SLIDES
7.4.2015 10 Channel Measurements With Large Virtual Antenna Configuration Keysight N5247A 10 MHz - 67 GHz PNA-X OUTPUTS: Parameters for 3D Channel model; ASD, ESD, ASA, ESA, Path loss, SF, K-factor, Delay Spread, Correlations, XPR, Rx Conformal Virtual Array 10.1 GHz / 700 MHz Dual Polarized Patch
7.4.2015 11 MIMO Measurement Campaign in Oulu University Campus at 10 GHz - The setup has been used for various measurement scenarios: Building corner diffraction, Indoor wall penetration, Indoor LOS/NLOS: Campus (Central hallway), Indoor office, - The measurement campaign is ongoing: Data has been recorded for 6 different scenarios and more is to come The data is to be analyzed in few weeks! To produce parameters for 3D Channel Model at 10 GHz
7.4.2015 12 Path Loss Measurements in Oulu Downtown at 10 GHz Setup: Signal generator + Spectrum analyzer Omnidirectional dipole antennas, SISO OUTPUTS: path loss + SF Tx dipole Rx dipole 4 different Tx locations, Antenna heights 5 m and 1.5 m for Tx and Rx, respectively Car was immobile during the measurement Signal Generator Spectrum Analyzer + laptop in the car
7.4.2015 13 Path Loss Measurements in Oulu Downtown at 10 GHz - Results Path loss exponents in LOS scenarios between 1.9 and 2.6 Mostly free space propagation with slight street canyon propagation (reflections from buildings) Path loss exponents in NLOS is even > 10 Poor propagation conditions behind the corner No significant diffraction propagation
10 GHz CO-EXISTENCE Spectrum sharing necessary due limited frequency resources Practical field measurements @10 GHz to find out : on what conditions Amateur radio (or any other user group) and 5G could coexist at the same frequency band without harmfully disturbing each other effect of operating habits - in principle help to avoid mutual interference geographical separation, directional antennas, TX/RX duty cycle, indoor-outdoor attenuation, wideband narrow band living in harmony, etc. how to proactively avoid possible mutual intolerable interference on the shared frequency band Requirements for accepting and tolerating reasonable amount of interference (3GPP, ETSI) Especially narrowband blocking
Field test setup
Field test locations 5G sites: Fixed site at the University Mobile site close to the amateur link (max 400 m to 5G TX) Amateur site #1: Campus Amateur site #2 : Oulu Center