© 2015 MiWaveS consortium. www.miwaves.eu
Beyond 2020 Heterogeneous Wireless
Networks with Millimeter-Wave Small Cell
Access and Backhauling
L. Dussopt, CEA-LETI
Nov. 20th, 2015.
Workshop on Millimetre-Wave Technology
for High-Speed Broadband Wireless Networks
© 2015 MiWaveS consortium.
MiWaveS vision
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015
� Heterogeneous networks: small cells within macro cells� Improve user data rate near the access point
� Offload data from the macro cell to the small cell
� Reduce transmit power (terminal and BS)
� Flexible deployment in dense areas
� Millimeter-wave small cells� Spectrum resources available
worldwide (60 GHz, 71-86 GHz)
� Multi-Gbps data rates and x1000
user density
� Low interferences
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© 2015 MiWaveS consortium.
S&T Objectives
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015
Backhaul link (50-100m)
Access link (10-50m)
� Objective 1: mobile access with up to 5 Gbps data rate through
mmW radios and above 10 Gbps aggregate capacity for backhaul.
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© 2015 MiWaveS consortium.
S&T Objectives
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015
� Objective 1: mobile access with up to 5 Gbps data rate through
mmW radios and above 10 Gbps aggregate capacity for backhaul.
� Objective 2: reduction of the overall EMF exposure
� Reduction of 3G/4G traffic through offloading (WP2)
� High directivity antennas (WP4)
� EMF exposure assessment in WP4
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© 2015 MiWaveS consortium.
S&T Objectives
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015
� Objective 1: mobile access with up to 5 Gbps data rate through
mmW radios and above 10 Gbps aggregate capacity for backhaul.
� Objective 2: reduction of the overall EMF exposure
� Objective 3: reduction of the power consumption per bit
transmitted (access and backhaul) (green radio)
� Offloading to small-cell access points (short range comm.) (WP2)
� mmWave radios (WP3)
� Directive antennas (WP4)
� Smart activation of BS/APs w.r.t. network load (WP2)
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© 2015 MiWaveS consortium.
S&T Objectives
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015
� Objective 1: mobile access with up to 5 Gbps data rate through
mmW radios and above 10 Gbps aggregate capacity for backhaul.
� Objective 2: reduction of the overall EMF exposure
� Objective 3: reduction of the power consumption per bit
transmitted (access and backhaul) (green radio)
� Objective 4: improvement of flexibility, QoS, robustness for
operator networks
� Split of data and signaling traffic, priority traffic on the 3G/4G
network (WP2)
� self-organizing network (WP2)
� mmW directive and short-range access links (WP3, WP4)
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© 2015 MiWaveS consortium.
Targeted results
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015
� Definition and specification of an heterogeneous wireless network
with mmW access and backhaul.
� Proof of concept of networking functions and algorithms for mmW
access and backhaul (Data routing, antenna beam-steering and
beam-forming).
� Demonstration of the radio and antenna technologies for 60 GHz
and E-band communications.
� EMF exposure assessment of users.
� Demonstration of an heterogeneous network prototype with mmW
backhaul and access links.
� Contribution to standards, regulation and scientific dissemination.
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© 2015 MiWaveS consortium.
Project structure
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015
WP
8:
Pro
ject
ma
na
ge
me
nt
WP
7: D
issem
ina
tion
, stan
da
rdisa
tion
, e
xplo
itatio
n
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© 2015 MiWaveS consortium.
Consortium
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015
Research institutes
Large companies
Universities
Small-Medium Enterprises
Coordination:
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© 2015 MiWaveS consortium.
Use cases and requirements
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 10
� Use cases1. Massive public events and gatherings
2. Hotspot in shopping malls
3. Urban street-level outdoor mobile access and
backhaul
4. Indoor wireless networking and coverage from
outdoor
5. Rural detached small-cell zones and villages
� Requirements� High end-user capacity (multi-Gbps data rate) and site
capacity (>10 Gbps aggregated capacity)
� Ease of small-cell APs installation, configuration and
management
� Interconnection of APs by short backhaul hops,
achievable with reasonable antenna sizes, energy
consumption and equipment cost
To Macro
© 2015 MiWaveS consortium.
Dynamic self-organising network
functional description and algorithms
� Scenarios and requirements for the self-organized heterogeneous
network with mmW small cells, integrated backhaul and access link.
� Overall heterogeneous network design with flexible small cell-macro
cell –relationships and dedicated mmW multi-hop backhaul network.
� Radio resource management (RRM) theoretical aspects and algorithms
with respect to heterogeneous networks (HetNet) with multi-hop
backhaul link.
� Function description and algorithms for the backhaul link and multi-hop
relay, and for the access link.
� Principles and functions for power consumption optimization
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 11
© 2015 MiWaveS consortium.
Antenna beamsteering and beamforming
� Access: Practical beamforming and beam tracking algorithms for restricted
antenna designs are investigated. Also, beam tracking for mobility scenario is
taken into account.
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 12
© 2015 MiWaveS consortium.
Antenna beamsteering and beamforming
� Access: Practical beamforming and beam tracking algorithms for restricted
antenna designs are investigated. Also, beam tracking for mobility scenario is
taken into account.
� Backhaul: Beam switching as a potential solution for high throughput point to
multipoint transmission; code-book design, channel estimation algorithm
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 13
© 2015 MiWaveS consortium.
Antenna beamsteering and beamforming
� Access: Practical beamforming and beam tracking algorithms for restricted
antenna designs are investigated. Also, beam tracking for mobility scenario is
taken into account.
� Backhaul: Beam switching as a potential solution for high throughput point to
multipoint transmission; code-book design, channel estimation algorithm
� Backhaul: typical small-cell installation mast movement measurements and
analysis.
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 14
© 2015 MiWaveS consortium.
Radio and antenna technologies
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 15
Cross section
Interposer (top)
Interposer (bottom)
Size : 10x10 mm2
IC
User Terminal: V-band Tx/Rx module (57-66 GHz) � LCP multi-layer substrate
� Single antenna (fixed beam), linear polarization
� Transceiver flip-chipped on the bottom side
� Module flip-chipped on the terminal board
� Interface: baseband I/Q signals, digital controls
Courtesy CEA-LETI
© 2015 MiWaveS consortium.
Radio and antenna technologies
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 16
Access point: V-band Tx/Rx phased array � Same technology blocks developed for the User Terminal: transceiver
chip, antenna elements, multi-layer stack-up
� Add Tx/Rx switch, power splitter, and active phase-shifter circuits
� Targeted antenna array: 1x4, 2x4 or 4x4 elements
� Gain: 12 dBi, 15 dBi or 18 dBi.
RFFE …TX
RX
N
SPDT
Feeding
Network
1
PSSPDTPAθt1
θr1
LNA
SPDT
PSSPDTPAθtn
θrn
LNA
SPDT
Preliminary layout (19x19 mm 2)
Phase shifter
TransceiverSPDT (Tx/Rx)
Radiatingelements
Cross section
Courtesy CEA-LETI
© 2015 MiWaveS consortium.
Radio and antenna technologies
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 17
Access point: V-band Tx/Rx phased array � High antenna gain (20-30 dBi)
� Beamsteering capability over a wide angular sector
� Spatial multiplexing
� Hybrid architectures with beam-steering sub-arrays
AP
Courtesy CEA-LETI
© 2015 MiWaveS consortium.
Radio and antenna technologies
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 18
Backhauling: V-band and E-band arrays and lenses � Low cost dielectric lens and printed focal array (fixed beam)
Courtesy STMicroelectronics
© 2015 MiWaveS consortium.
Radio and antenna technologies
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 19
Backhauling: V-band and E-band arrays and lenses � Low cost dielectric lens and printed focal array (fixed beam)
� Discrete lens antenna array with switched focal array (switched beams)
-50 0 50-20
-10
0
10
20
30
Gai
n (d
Bi)
Phi = 90°
-10 -7.5 -5 -2.5 0 2.5 5 7.5 10
5
7.5
10
12.5
15
17.5
20
22.5
25
27.5
30
X: 0
Y: 29.31
Courtesy VTT & CEA-LETI
© 2015 MiWaveS consortium.
Radio and antenna technologies
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 20
Backhauling: V-band and E-band arrays and lenses � Low cost dielectric lens and printed focal array (fixed beam)
� Discrete lens antenna array with switched focal array (switched beams)
� Continuous Transverse Stub antenna (fixed beam)
Courtesy Univ. Rennes.
© 2015 MiWaveS consortium.
Demonstrations
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 21
Base
StationAccess
Point
User
Equipment
E-band
V-band
V-band
Backhaul
links
Access
links
KPIs: Max. throughput, Power cons. , Beamforming perf. , Latency, etc.
© 2015 MiWaveS consortium.
DAC/ADC
E/V-Band
antenna
Tx/Rx PHY
processing
MAC / Link
control
E/V-Band
transceiver
BF /
RF Ctrl
DAC/ADC
E/V-Band
antenna
Tx/Rx PHY
processing
MAC / Link
control
E/V-Band
transceiver
BF /
RF Ctrl
Demonstrations
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 22
WP3 (SIV, CEA, ST-F)
WP5 (NI, TUD, UNIS)
WP4 (UR1, CEA, ST-F, VTT)
© 2015 MiWaveS consortium.
Impacting standardisation bodies
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 23
2013 2014 2015 2016 2017 2018 2019 2020
Rel 15 (expected end 2019)Rel 12 (09/2014) Rel 14 (expected end 2017)Rel 13 (expected H1/2016)
LTE-A / 4G B4G 5G
mmWave FieldDeployment
mmWave Research / Prototyping Phase mmWave Standardization / Product Pre-Development
Main mmWave SI / WI
WRC 2015WRC 2018/2019
Global mmWave SpectrumAllocation, Proposals Eval
Recommendation ITU-R M.[IMT.VISION]Report ITU-R M.[IMT.FUTURE TECHNOLOGY TRENDS]Report ITU-R M.[IMT.ABOVE 6 GHz]
IMT Vision for programmeIMT for 2020 and beyond
Provide basis for Rel 14 work items
Support Rel 13 study items (SI)
Use cases, Algo. Analysis
MiWaves Mulit-Gbit/s mmWaveBackhaul and Access Link Demonstrator Algo. Implem.,
RF / Ant opt.Integration, Measurements
Perf requirements, eval criteria, methodology of new IMT radio
Rel 16
Proposalphase
Workshop on candidate technologies for IMT-2020 New ITU-R recommendation for IMT-2020
First mmWave SI / WI
© 2015 MiWaveS consortium.
Conclusion
MiWaveS is developing key technologies for mm-wave wireless
access and backhaul in future 5G heterogeneous mobile networks.
� Definition and specification of an heterogeneous wireless network with mmWave access and backhaul
� Networking functions and algorithms (Data routing, antenna beam-steering and beam-forming).
� Demonstration of radio and antenna technologies in V band and E band
� EMF exposure assessment of users
� Contribution to standards , regulation and scientific dissemination
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 24
© 2015 MiWaveS consortium. www.miwaves.eu
Thank you for your attention
© 2015 MiWaveS consortium.
MiWaveS at a Glance
� Large scale integrating project (IP), 15 partners
� Duration: Jan. 2014 – Dec. 2016
� Project coordinator: Dr. Laurent Dussopt (CEA-LETI, Fr).
� Project officer: Pertti Jauhiainen (EC).
� Call: FP7-ICT-2013-11, Objective : ICT-2013.1.1 Future networks
� Contract: CNECT-ICT-619563
� Total cost: 11 349 195 €; EC funding: 7 358 113 €
� Communication:� Web: www.miwaves.eu
� Twitter: https://twitter.com/FP7_MiWaveS
� LinkedIn: www.linkedin.com/groups/FP7-MiWaveS-6694097
MiWaveS – mmW 2015 workshop – Valencia, Spain – 20/11/2015 | 26