ofcom tv white space pilot presentation
TRANSCRIPT
Ofcom TV White Spaces Pilot
Update Event
26th June 2014
2
Agenda
Session 1 Welcome and agenda outline
Ofcom pilot update
Trial presentations and Q&As
Coffee Break
Session 2 Database presentations and panel discussion
Lunch
Session 3 DTT and PMSE Coexistence test programme
Coffee Break
Session 4 Trial presentations and Q&As
Close and next steps
TV White Space Pilot – one year on
3
• 26 April 2013 Ofcom launched the idea of the pilot
• This received strong stakeholder support
• Pilot’s objectives
– to explore the potential benefits and issues
of the new technology
– to show if this model of spectrum sharing
can be made to work
– to generate new information on
coexistence challenges
• Many months of work by Ofcom and stakeholders to
make the pilot a reality
TV white spaces trials
4
Glasgow
External Wi-Fi and webcam
backhaul
Microsoft & Centre for White
Space Communications (T)
Spectrum Bridge, Microsoft
(DB)
Mediatek/6 Harmonics &
others (DV)
Oxford – Remote
sensor network
(flood detection)
Love Hz (T)
Nominet (DB)
Adaptrum (DV)
Scotland
Rural broadband
Cloudnet Solutions (T)
Fairspectrum (DB)
Carlson Wireless (DV)
Dorset – Wifi backhaul
Wifinity (T)
iconectiv (DB)
Adaptrum (DV)
London – Academic Research
Queen Mary University (T)
Nominet (DB) WSN Tech (DV)
T: Trialist DB: Database DV: Device
Milton Keynes
Smart City
BT (T)
BT (DB)
Neul (DV)
Watford
CCTV content distribution
Sinecom (T)
Spectrum Bridge (DB)
Sinecom/KTS Wireless (DV)
Watford – A/V distribution
Peerless (T)
Spectrum Bridge (DB)
MELD (DV)
London
Academic Research
King’s College & Joint
Research Centre of the
European Commission &
NICT (T)
Fairspectrum / NICT (DB)
Sinecom/ KTS wireless,
Carlson wireless,
Eurecom (DV)
Pilot Databases
5
• Databases control the operation of devices and are the
key innovation in the TVWS framework
• Databases operation is regulated by Ofcom and a
contract has been put in place to do this
• 9 companies have signed a contract for the pilot
• Spectrum Bridge, Fairspectrum, NICT and Nominet
having successfully passed the qualification process and
their databases are now discoverable by devices
• BT, iconectiv, Microsoft, Sony are going through the
qualification process
• Qualification involves self-declaration against specific
technical requirements; off-line tests and; simulated
online tests
Devices to be deployed in the Pilot
6
Adaptrum
Carlson Wireless
Eurecom
6Harmonics
KTS Wireless / Sinecom
Mediatek
MELD
Neul
NICT
Wuxi SensingNet Industrialization Research
Institute (WSN)
Pilot Testing
We will test the overall framework for accessing TVWS including the:
– End-to-end interactions between devices, Ofcom and Databases
– Ofcom’s business processes for operating the framework
7
Framework testing with Databases and Trialists
Coexistence testing
• No Ofcom led coexistence tests at stakeholder trials
• Information postcards to trial location households to help identify any
interference cases
• Separate programme of coexistence testing – further details later
8
Pilot next steps
• More licences issued to trialists
• Framework tests scheduled & undertaken
• Finish qualification for remaining databases
• More coexistence tests for DTT & PMSE
TRIAL PRESENTATIONS
9
Greg Whitton / Nikki Linklater
CloudNet IT Solutions – Orkney
Situated 6 Miles North of Scotland (Orkney Islands) Consisting of 67 Islands of which 18 are inhabited
57 Miles long x 32 Miles Wide
Approx 20,000 inhabitants
Marine Services – Inter Island Ferries ◦ Travel between islands range from 20 minutes to
3hrs travel.
◦ TV only on the boats (subject to receiving a signal).
◦ Marine/Water solutions not been considered, and is ideal for this type of technology, and due to water and the comms issues this will fit well with the range and terrain.
Inter Islands Ferry routes
Rural Locations Islands – Broadband
Broadband in the Islands are not a priority for BDUK to deliver, because we make up the 5% population which is too costly to deploy to. Out with the scope of funding.
Communications are limited to Isles, and only then to the BT Exchanges will there be decent bandwidth providing your near the exchange.
1 exchange per area, so copper cannot deliver throughput
the further you are from these locations
Although our plans for rural locations will include more land bases sites once our infrastructure is proven and in place.
Complex infrastructure needs – No backhaul (internet) at locations where Base Stations are situated and nothing there to connect to! ◦ So had to put our own network in.
Design not only the TVWS but the links too.
We have engaged a number of partners/clients. These being :-
Number of Base Stations 4
Wideford Hill (220m above sea)
Orkney Islands Council Radar Station (90m)
Eday Pier – North Island (20m)
Westray Pier - North Island (20m)
CPE’s 3 Vessels
Earl Sigurd, Varagen, Earl Thorfinn, ◦ Offering Back Office Integration – Crew, Wi-Fi for Ships Crew,
and Public Services
CPE’s 3 Land Based – Baseline Service delivery and QoS
Faroese Telecoms Radar ◦ Relay Radar/ AIS Data of Marine Traffic of ships movement
around North Scotland to Shetland monitoring the sub-sea fibre cables
Two Residential accommodation locations - currently
Quoygrew and Galaha
Complete infrastructure necessary – No sites had adequate Broadband capacity ◦ Backhaul to London via Sea-Fibre - ISP Status
◦ Microwave Link Wideford to Ayre of Cara (600Mb, 18
GHz)
◦ Base Station Backhauls (5GHz)
◦ Sandy Hill Radar Station to Wideford (25Mb min)
◦ Eday Pier to Wideford (50Mb min)
◦ Westray Pier to Wideford (50Mb min)
Helsinki, Finland
All of it ! Marine Logistics – Ensuring we comply to Maritime Standards (interference, Radar, sea trials, VHF, Compasses, dirty power supplies) Backhaul Infrastructure Bandwith Issues Wireless Links Microwave Links Planning the Base Stations, to co-exist and maximise coverage. Council Planning Application Processes Adhere to RSPB requirements (Rare Birds, migrating and nesting) Adhere to SNH and historic sites (disturbances to land)
DATABASE PRESENTATIONS
AND PANEL DISCUSSION
62
White Space Databases
63
Pilot update:
• Spectrum Bridge, Fairspectrum, NICT and
Nominet have successfully passed the
qualification process and their databases
are now discoverable by devices
• BT, iconectiv, Microsoft, Sony are going
through the qualification process
Other important work going on:
• ECC Report on a regulatory framework for
TV WSD using geo-location databases, at
ECC Project Team FM53
Fairspectrum database in
Ofcom Trials
Olli Luukkonen
© Fairspectrum 2014
© Fairspectrum 2014
Fairspectrum introduction
• Finnish company founded in 2010
• TVWS Geolocation database provider
• TVWS Consulting in trials and business
models
• 3 Dr. (tech) and 1 Professor
• Regulator, operator, broadcaster, and oil
industry customers e.g. in Finland, Vietnam,
England, Scotland, and Italy
• http://www.fairspectrum.com/
© Fairspectrum 2014
Central London with
Acropolis
• Serving Carlson Wireless and Eurecom
devices
• Urban location in the center of London
• Research topics include e.g.:
- Aggregation
- Primary service coexistence assessment
- Spectrum monitoring and statistical
interferences
© Fairspectrum 2014
Orkney with
CloudNet IT Solutions
• Serving Carlson Wireless devices
• Data services and broadband for maritime
vessels
• TVWS over vast areas of water
• Aim is to provide full coverage for marine
vessels operating in and around Orkney
© Fairspectrum 2014
Qualification process
• Started on Dec 23, 2013 - ended Jun 1,
2014
• Nearly 400 off-line test cases
• Online testing by Ofcom
• Close communication with Ofcom
throughout the process
• Continuous internal testing
© Fairspectrum 2014
Communication with the devices
• PAWS protocol versions 06 and 12 are
supported
• Structural and naming differencies between
the versions
• In addition, interfaces have been
implemented for Ofcom monitoring
purposes
© Fairspectrum 2014
White Space availability
Test area
© Fairspectrum 2014
White Space availability results
Generic request
179500
180000
180500
181000
181500
182000
182500
528000 529000 530000 531000 532000 533000 534000
Mic -5 dBm TV -5 dBm 35 dBm
© Fairspectrum 2014
Cumulative results
Generic request
0
50
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450
-30 -20 -10 0 10 20 30 40
TV Mic Same
© Fairspectrum 2014
White Space availability results
Specific request
179500
180000
180500
181000
181500
182000
182500
528000 529000 530000 531000 532000 533000 534000
Mic -5 dBm TV -5 dBm 35 dBm
© Fairspectrum 2014
Cumulative results
Specific request
0
50
100
150
200
250
300
350
400
450
-30 -20 -10 0 10 20 30 40
TV Mic Same
© Fairspectrum 2014
We are continuously looking for
new project opportunities.
Please do not hesitate to contact us!
© Fairspectrum 2014
Database Panel
104
• Peter Stanforth, Spectrum Bridge
• Dr. Olli Luukkonen, Fairspectrum
• Ray Bellis, Nominet
• Andrew Stirling, Microsoft
• Tony Triolo, iconectiv
• HaNguyen Tran, NICT
• Ofcom Chair, Cesar Gutierrez
TRIAL PRESENTATIONS
141
ACROPOLIS
Trials Led by the
ICT-ACROPOLIS
Network of
Excellence
Ofcom TV White Spaces Pilot Stakeholders Event
London, UK, 26 June 2014
Oliver Holland, King’s College London
Pravir Chawdhry, Joint Research Centre of the European Commission
Raymond Knopp, Eurecom
Overview
Objectives
ETSI 301598 support
Deployment and testing scenarios
Devices
Databases
Locations
The trials team
Conclusion
ACROPOLIS
Objectives
Objectives
To test communications systems and scenarios that may be implemented
in TV White Space
- LTE multicast/broadcast (eMBMS)
- Broadband for public protection and disaster relief
- TD-LTE and other TDD systems for more general applications in TV
White Space (e.g., general broadband provisioning, and small cells in
TV White Space)
- WiFi in TV White Space (802.11af draft)
- Wireless backhaul links in TV White Space
- M2M implementations (possible future work)
To support the development/assessment of the ETSI 301598 standard
Objectives
To test the correct performance of the UK’s TV White Spaces framework
in general
To carry out research studies using TV White Space implementations
- Aggregation of resources/links (e.g., TV White Space with licensed and
other unlicensed such as ISM, and links within TV White Space)
- Qualitative and quantitative performance surveys
- Secondary coexistence (e.g., LTE coexisting and 802.11af in TV White
Space, and multiple instances of different standards/devices coexisting)
- To undertake studies and surveys on the performances that are
achieved, e.g., in terms of interference to primary (!), secondary user
performance through objective user opinion polling
- Spectrum monitoring and assessment (e.g., spatial and temporal effects
on the spectrum—correlation)
ACROPOLIS
ETSI 301598 Support
ETSI 301 598
Defines the technical requirements to avoid harmful interference
- RF parameters, e.g.,
- Transmission bandwidth and spectrum mask class
- Maximum RF power (and compliance thereof)
- Unwanted emissions (out of TV band)
- Transmitter reverse intermodulation
- Logical specifications, e.g.,
- Control and monitoring
- Geolocation capability
- Software, firmware and user access restrictions
- Geolocation database discovery
- Data exchange with geolocation databases
Defines the testing procedures for ensuring that those technical parameters are conformed with
Device to geolocation database communications protocol not defined
ETSI 301 598 Support
Our trial is undertaking extensive work
related to ETSI 301598
- Assisting aspects of conformance
assessment of devices by certain
entities
- Supporting assessment of the
effectiveness and feedback on ETSI
301 598—links with ETSI
ACROPOLIS
Deployment and Testing Scenarios
LTE MBMS and opportunistic spectrum/link aggregation with other services
(WiFi in ISM, and 3G/4G in licensed bands)
Augmented broadcast (e.g., extra layers of video
subscribed to when receiving higher rate,
locally customised broadcast)
Data carousel-like functionalities
achieved by raptor-coding
the data set
- Augmented CPC
- Software
upgrades
LTE MBMS and Spectrum/Link
Aggregation
LTE femtocells + intercellular links in TV White Space
- Quickly-deployable field solutions for emergency situations (e.g., enhanced
provisioning or coverage extension to emergency workers)
- Ad-hoc repair of communications links (e.g., backhaul) in disaster scenarios
(e.g., earthquakes)
Public Protection and Disaster Relief
Video surveillance system in TV White Space
Public Protection and Disaster Relief
2 Sony SNC-CH220
+ 1 Carlson Terminal
1 Sony SNC-ER550
+ 1 Carlson Terminal
Sony Real Shot manager software
Carlson Basestation
Point-to-point links for backhaul provisioning,
between different university campuses of
participants in our trials (one challenging
example we will attempt to achieve is to the
right)
General broadband provisioning using a range
of devices and systems
LTE small cell implementations, likely indoor
Wireless local area networking in TV White
Space
Machine-to-Machine communications in TV
White Space (possible at later stage)
Others
Denmark Hill
Mile End
ACROPOLIS
Devices
Eurecom ExpressMIMO2
ExpressMIMO2 is the basis for the LTE MBMS case initially, and likely
other LTE cases later—perhaps also 802.11af at a very late stage
No DSP on board, FPGA primarily used just for routing data; host PC
must be powerful and running in a real-time operating system!!! 4 RF
chains achievable on the card (all Tx+Rx)
Have set up 3
devices based on
this so far (1 base
station and two
terminals), each
hosted in a PC with
(in the case of base
station) a separate
box handling RF
PCIexpress (1-way or 4-way)
4xLMS6002D RF ASICs
250 MHz – 3.8 GHz
Spartan 6 LX150T
GPIO for external RF control
RF TX
12V from ATX power supply
RF RX
Eurecom ExpressMIMO2
Perhaps the first Class 1 white space device implementation?
Has been a significant challenge in achieving this—Class 1 constraints are very tough
ExpressMIMO2 has excellent RF performance, but on some channels it fails Class 1 marginally for the adjacent channels only, reducing to Class 3
To still achieve Class 1, signal has been created at a high fixed frequency and very precisely filtered there
Down-converted with a variable frequency LO, to allow switching to the different TV channels
A complex filtering solution is employed to get rid of all images and other issues (e.g., imperfection of the mixer leading to some output remaining at the high signal frequency). The high signal creation frequency has been carefully chosen to ensure that such issues are only outside of the TV bands so can be very precisely filtered with fixed filters
Amplifier with extremely large back-off (hence linearity) used to ensure that Class 1 performance is maintained at amplification
Carlson Wireless Ruralconnect
http://www.carlsonwireless.com/ruralconnect
Built for US market, but adapted to operate
under Ofcom/ETSI rules in terms of database
(and database of databases) communication,
power levels, etc.
Our trial will use at least 2 base stations and 5
terminals
Deployment scenarios include the public
protection and disaster relief cases
Also broadband provisioning cases, and
perhaps to try to use for longer-distance
point-to-point links at a later stage
Sinecom/KTS Agility White Space
Radio
http://sinecom.net/product.html
In the shorter term, to be used for low-
rate broadband provisioning
In the longer term, likely to also be used
for M2M cases
Likely to be used for the point-to-point
long-distance links at a later stage
Our trials will have at least 6 of these
devices
NICT Devices (collaboration with
NICT)
TD-LTE in TV White Space
- Base stations and terminals
- 3 of each will be used in our trials
- Used for general testing of LTE scenarios (small/femto cells, and larger
cellular provisioning cases)
Low-power IEEE 802.11af (WiFi in TV White Space)
- Wireless local area networking is prime use case
- We will have at least 5 of these devices
High-power IEEE 802.11af
- Long-distance backhaul link provisioning
- We will have at least 2 of these devices
NICT Devices (collaboration with
NICT)
Wireless mesh network deployment example at NICT, Yokosuka, Japan
(very low Tx power in this case), also with graphical representation of the
NICT database implementation
ACROPOLIS
Databases
Databases
Noted that the interfaces between TV White Space devices and geolocation databases are not standardised. It is therefore typically the case that given TV White Space device manufacturers are working with particular databases
We are using a range of databases in our trials
- Fairspectrum Carlson Wireless and Eurecom devices
- NICT NICT and Eurecom devices
- Spectrum Bridge KTS/Sinecom devices
- Joint Research Centre of the European Commission for comparison using a range of devices, not deployed in UK
Haven’t pursued the implementation details yet simply due to time constraints, but also have been in discussion and have verbal agreement with the following – hope to test devices with these databases too as trials progress
- BT
- Sony
- Nominet
ACROPOLIS
Locations
Locations
Almost exclusively
campuses/buildings
among the range of
universities that are
collaborating in our
trials
Extensive range of locations, covering almost all
imaginable environments, tested (mostly) sequentially
- Cluttered vs. non-cluttered
- High incumbent systems TV bands usage vs.
relatively low usage
- A range of propagation characteristics
Locations
London
- King’s College London Denmark Hill
- King’s College London Guys (London Bridge)
- King’s College London St. Thomas’ (opposite Westminster)
- King’s College London Hampstead
- Queen Mary University of London
- King’s College London Strand – long-term objective, dependent on whether coexistence challenges can be managed
- King’s College London Waterloo – long-term objective, dependent on whether coexistence challenges can be managed
Outside London
- University of Surrey (Guildford)
- University of York
- Strathclyde University (Glasgow—under discussion)
- Cambridge University
- University of Bath
- Leeds University (back-up)
ACROPOLIS
The Trials Team
The Trials Team
ACROPOLIS Project
- Led by
- King’s College London, UK
- The Joint Research Centre of the European Commission, EU
- Eurecom, France
- Also involving
- RWTH Aachen University, Germany
- Saints’ Cyril and Methodius University in Skopje, FYRoM
- Poznan University of Technology, Poland
- University of Rome “La Sapienza”, Italy
- University of Piraeus Research Centre, Greece
- Institute of Accelerating Systems and Applications, Greece
- University of Surrey, UK
- University of Leeds, UK
The Trials Team
Extensive involvement of other projects, notably ICT-SOLDER (www.ict-solder.eu), ICT-CREW (www.crew-project.eu), Newcom# Network of Excellence (www.newcom-project.eu), ICT-CRS-i (http://www.ict-crsi.eu). Also numerous high-profile individual groups participating
Following reflects both the above projects participants, and individual groups participating (not exhaustive)
- Belgium: iMinds, IMEC
- Finland: Fairspectrum, Turku University of Applied Sciences
- Germany: Technical University of Dresden
- Greece: Industrial Sciences Institute
- Ireland: Trinity College Dublin
- Italy: CNIT/Politecnic of Torino, Fondazione Ugo Bordoni, Create-Net
- Japan: NICT, Sony
- Portugal: IT/University of Aveiro, IT/University of Beira Interior
- Slovenia: Jozef Stefan Institute
- UK: Queen Mary University of London, University of York, University of Cambridge, University of Bath, University of Strathclyde/Larkhill, British Telecom, Nominet
ACROPOLIS
Conclusion
Conclusion
Extensive series of trials
Testing of many TV White Space devices and deployment scenarios
- Interoperability and verification of a large number of geolocation
databases
Testing of many deployment locations
Testing of framework and certification for TV White Space in the UK/EU
A number of research aspects being investigated
Represents a very significant collaboration of some of the top names in
academic and institutional research in Europe with strong interests in TV
White Spaces, spectrum sharing, opportunistic spectrum access,
spectrum coexistence, etc.
Acknowledgements – Key People
(participants or collaborators)
Led by
- Oliver Holland – King’s College London, UK
- Pravir Chawdhry – Joint Research Centre of the European Commission, EU
- Raymond Knopp – Eurecom, France
Some other key people (may not be exhaustive)
- Nishanth Sastry, Shuyu Ping, Reza Akhavan – King’s College London, UK
- Florian Kaltenberger, Dominique Nussbaum – Eurecom, France
- Jean-Marc Chareau, James Bishop, Michele Bavaro, Emanuele Anguili – Joint Research Centre of the European Commission, EU
- Juhani Hallio, Mikko Jakobsson, Jani Auranen, Reijo Ekman, Jarkko Paavola, Arto Kivinen – Turku University of Applied Sciences, Finland
- Yue Gao – Queen Mary University of London, UK
- Ha-Nguyen Tran, Kentaro Ishizu, Keiichi Mizutani, Hiroshi Harada – NICT, Japan
- Rogerio Dionisio, Paulo Marques – Institute of Telecommunications, Portugal
- Heikki Kokkinen, Olli Luukkonen – Fairspectrum, Finland
- David Grace – University of York, UK
- Klaus Moessner – University of Surrey, UK
- David Crawford – University of Strathclyde, UK
- Andrew Stirling – Larkhill Consulting, UK
Acknowledgements – Key Projects
This work is supported by the ICT-ACROPOLIS
Network of Excellence, FP7 project number 257626,
www.ict-acropolis.eu, and ICT-SOLDER, FP7 project
number 619687, www.ict-solder.eu
ACROPOLIS
Thank you!
Questions/discussion?
Oliver Holland [email protected]
Pravir Chawdhry
Raymond Knopp [email protected]
London, 26 June 2014
ACROPOLIS
Back-up Slides
ACROPOLIS
Research Experiment
Examples
Research Examples - Aggregation
Solutions for Aggregation of resources/links (TVWS resources aggregated
with licensed and unlicensed ISM, and channels aggregated in TVWS)
- As well as assessing performances, to look at technical means of
achieving aggregation compatible with ETSI/Ofcom rules (e.g., link
bonding at higher layers, cross-band scheduling decisions, etc.)
- LTE in unlicensed spectrum (LTE-U) one among many interesting cases
- Why not such a LTE-U supplemental downlink in TV White Space
license-exempt spectrum opportunities?
Qualcomm White Paper,
“Extending LTE Advanced to
Unlicensed Spectrum,”
December 2013
Research Examples – Primary
Service Coexistence Assessment
Dedicated equipment to look at effect on DTT, e.g., Wavecom devices
- Signal Power, Modulation Error Rate, SINR, CINR, BER before Viterbi,
BER after Viterbi, BER after Reed-Solomon, etc.
Will devise challenging scenarios to interfere with DTT, within the scope of
ETSI/Ofcom rules (e.g., indoor TV antennas in same room as white space
device, saturating TV antenna amplifiers, etc.)
Also plan to test interference with PMSE through our own PMSE
equipment, again within Ofcom/ETSI rules. E.g., blind online surveys
Research Examples – Spectrum
Monitoring and Statistical Inferences
Long-term fixed measurements or spatially distributed measurements, to
assess the effects on the spectrum of TV White Space devices
- Assessment of correlation aspects of spectrum usage both with and
without white space devices present (useful for, e.g., assessing the
spatial uncertainty in the effects on the spectrum) that white space
devices may have
- One monitoring location on roof of King’s College London Strand
Campus
216
Conclusion
• This summer further trials will start
• Ofcom will carry out and complete its testing programme both
of the framework and coexistence
• This autumn Ofcom will take stock on what we have learnt
from our testing and the pilot more broadly. We plan to
publish our decisions on the way forward around the end of
the year.
Thank you for
participating in
this event.
217
More information
218
For information about
Ofcom’s TV White
Spaces Pilot please visit
our dedicated pilot
webpages
http://stakeholders.ofcom
.org.uk/spectrum/tv-
white-spaces/white-
spaces-pilot/