Technology enablers for 5G spectrum sharing

Brought to you by The Radio Technology Group, The Small Cell Group

At this event you will explore the key enablers for Dynamic Spectrum Access for 5G and beyond, including flexible RF systems, distributed spectrum monitoring and secure protocols, and learn from the technical challenges faced in other spectrum sharing frameworks such as that of the US.

Registration for this event is now closed.

About the event

Radio spectrum, fundamental to all wireless systems, is becoming more congested and its management more challenging. Regulators are considering moving from licensing fixed bands to Dynamic Spectrum Access (DSA), meeting demand based on evolving need and availability.  Ofcom’s 2018 Spectrum Strategy proposed the incentivisation of spectrum sharing in both existing licensed bands and new bands, and the US is also promoting this approach to spectrum management.

At this event we will explore the key enablers for Dynamic Spectrum Access for 5G and beyond, including flexible RF systems, distributed spectrum monitoring and secure protocols, and learn from the technical challenges faced in other spectrum sharing frameworks such as that of the US.

You can follow @cambwireless on Twitter and tweet about this event using #CWRadioCell.

Sponsored by Plum Consulting

Plum is a leading independent consulting firm.

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Supported by UK5G

The national innovation network dedicated to the promotion of research, collaboration and the commercial application of 5G in the UK.

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Agenda

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The information supplied below may be subject to change before the event.

09:30

Registration and networking

10:00

CW welcome and introduction to the Small Cell and Radio Technology SIGs: Simon Mead, CEO, Cambridge Wireless (CW)

10:05

Welcome from event host, Dritan Kaleshi, Head of Technology (5G), Digital Catapult

10:10

Welcome from Ian Corden, Director, Telecommunications, at event sponsor, Plum Consulting

10:15

‘Making spectrum work better for consumers and businesses’: David Harrison, Principal Advisor Digital Media Technology, Ofcom

Spectrum sharing provides opportunities to support innovation in new wireless services and to extend their reach into more places where people and things go. In this talk David will explore how these benefits can be best secured, including the future role of technology.

10:35

Q & A

10:40

'The U.S. 3.5 GHz Citizens Broadband Radio Service': Andy Clegg, Spectrum Engineering Lead, Google

Initial commercial CBRS deployments have begun in the U.S., and full commercial service will begin later this year. The sharing arrangements in CBRS, involving Spectrum Access Systems (SASs) and Environmental Sensing Capability (ESC) networks, are relatively complex, driven mostly by the dynamic and secret nature of military incumbent activities and the need to compute aggregate interference into incumbents and some CBRS users. This talk will explore a few of the many technical details of the protection framework and how the SAS and ESC systems operate, with the goal of raising awareness for potential application of some of the CBRS concepts in other bands and other regions.

11:10

Q & A

11:15

'Advancing the Understanding of Sharing in 5G Networks': Dr Tim Forde, Executive Director of CONNECT, Trinity College Dublin

In this talk we describe advances the CONNECT research centre has made in understanding limits of spectrum and infrastructure sharing. We also describe some recent work undertaken in collaboration with industry partners which looks at how we can overcome unforeseen practical limitations of sharing in urban small cell deployments.

11:35

Q & A

11:40

Refreshments and networking

12:10

‘Co-existence in an age of technology neutrality and licence-exemption’: Simon Pike, Independent

Much of modern spectrum management is based on an implicit assumption that the applications that share a particular portion of spectrum will have broadly similar characteristics and deployment. However, the ever-widening range of uses of the radio spectrum means that this is often no longer the case. A similar situation arises when licence-exempt spectrum is used in novel ways. An example of this is the 60GHz band. Does the approach to studying coexistence need to change, or are we heading towards increasing problems of interference between dissimilar applications? I will suggest a possible approach to mitigate this interference, by recommending ‘default’ frequencies to be used by an application in the absence of other users or interference. The ‘default’ frequency would be different for different applications, which would reduce ‘clashes’ between different types of use.

12:30

Q & A

12:35

‘Signal Processing Techniques for Mitigating Against Non-System Interference’: Stephen Wales, Roke Manor Research

In spectrum sharing applications co-channel interference from a different system could be experienced, and normally co-ordination rules are developed that set interference levels to minimise impact on both systems involved in sharing. These interference levels can be quite restrictive. Interference mitigation techniques can potentially be incorporated into receivers allowing higher levels of interference to be tolerated. This talk examines a number of signal processing techniques designed to mitigate against non-system interference. These techniques exploit differences in signal characteristics between the wanted signal and interference. Examples covered include transform domain excision, signal separation based on statistics, array processing techniques and an approach based on machine learning. Examples of equipment incorporating some of the techniques described are given.

12:55

Q & A

13:00

Lunch and networking

14:00

‘Flexible RF technologies for Spectrum Sharing’: Mark Beach, Professor of Radio Systems Engineering, University of Bristol (Communications Systems & Networks Research Group)

Increasingly, networks are moving to being software defined, making them highly flexible and independent of their transmission and computing substrate. However, this is not true for the radio interface: current systems are inflexible and unable to easily adapt to new standards, spectrum and the efficient support of Dynamic Spectrum Access. In this presentation, the latest laboratory results from Bristol’s research in flexible duplexing, robust receiver architectures and efficient and agile transmitter technologies will be summarised in the context of spectrum sharing.

14:20

Q & A

14:25

‘RF Hardware Challenges in Cognitive Radios’: Martin Gostling, Managing Director, Radio Design

State of the art cellular radios contain fixed frequency components – for example filters – that pose a significant challenge to the cognitive radio concept due to their lack of adaptability. This talk analyses some of these problems and presents potential solutions.

14:45

Q & A

14:50

‘Massive MIMO and centralised RANs for spectrum sharing’: Ian Corden, Director, Telecommunications, Plum Consulting

Massive MIMO has been widely cited as a key technology with 5G mobile solutions and continues to be an active area in both research and product development domains, with promise of significant capacity and coverage extensions over SISO and low order MIMO systems. However, in mobile environments with highly variable and dynamic radio scattering conditions, the channel estimation problem is non-trivial, yielding degradation of performance in practical situations over theoretical estimates and lab results. Further, high order MIMO designs require high bandwidth backhaul connections. In parallel, RAN architectures are being reconsidered. With new open access protocols such as eCPRI, radio antenna arrays can be separated from baseband processing hubs and control plane systems using ethernet over fibre links, enabling centralised architectures which can support diverse MIMO and beamforming. This talk will review the current state of massive MIMO in mobile systems, the potential for MIMO evolution with centralised RANs, the potential for these technologies to support spectrum sharing, and the potential system and industry advantages.

15:10

Q & A

15:15

Panel session

15:40

Wrap-up

15:45

End of session followed by networking and refreshments

16:30

Event closes

Speakers

Mark Beach - Professor of Radio Systems Engineering, University of Bristol (Communication Systems & Networks Research Group)

Mark Beach received his PhD for research addressing the application of Smart Antenna techniques to GPS from the University of Bristol in 1989, where he subsequently joined as a member of academic staff. He was promoted to Senior Lecturer in 1996, Reader in 1998 and Professor in 2003. He was Head of the Department of Electrical & Electronic Engineering from 2006 to 2010, then spearheaded Bristol’s hosting of the EPSRC Centre for Doctoral Training (CDT) in Communications. He is the Co-Director of this centre. He leads research in the field of enabling technologies for the delivery of 5G and beyond wireless connectivity; which includes the recent award of an EPSRC Prosperity Partnership in the field of Secure Wireless Agile Networks (SWAN). Mark’s current research activities are delivered through the Communication Systems and Networks Group, forming a key component within Bristol’s Smart Internet Lab. He has over 30 years of physical layer wireless research embracing the application of Spread Spectrum technology for cellular systems, adaptive or smart antenna for capacity and range extension in wireless networks, MIMO aided connectivity for through-put enhancement, experimental evaluation and optimization of Massive MIMO, Millimetre Wave technologies as well as flexible RF technologies for SDR modems. With a strong industrially focused research portfolio, he is also the School Research Impact Director.

Andrew Clegg - Google

Andrew Clegg is Spectrum Engineering Lead for Google. He is presently focused primarily on identifying spectrum sharing opportunities for commercial wireless networks. Prior to joining Google, he served as the spectrum manager for the U.S. National Science Foundation, where he founded the Enhancing Access to the Radio Spectrum (EARS) program, a $50 million program dedicated to funding academic and small business research focused on improving spectrum efficiency and access. Prior to NSF, he was a Lead Member of Technical Staff at what is now AT&T Mobility. He has over 20 years' experience in national and international spectrum management for both government and commercial applications, and was a member of the U.S. delegation to two World Radiocommunication Conferences. He holds a PhD in Radio Astronomy and Electrical Engineering.

Tim Forde - Executive Director, Independent

Tim Forde is Executive Director of the CONNECT Research Centre for Networks and Communications, Ireland's leading telecommunications research centre. He is responsible for delivering the strategic vision for operations, industry and stakeholder engagement, as well as ensuring the smooth management of the Centre. He has a PhD in wireless networking from Trinity College, Dublin and his postdoctoral studies focused on the use of behavioural economics in the design spectrum markets. He has recently worked for the European Commission conducting studies on 5G and spectrum sharing.

Martin Gostling - Managing Director, Radio Design

Martin has been at Radio Design from its inception in 2007 and now holds the position of Managing Director. Previously, he had responsibility for the company‘s technical strategy, regularly advising operators on network sharing options and cell site optimisation whilst overseeing the company’s product and patent portfolios. Martin received a First Class MA in Mathematics and a Masters of Mathematics from Cambridge University followed by a PhD from Leeds University. He subsequently moved to Filtronic where he worked as a System Engineer on base station RF modules before joining Radio Design.

David Harrison - Ofcom

David is Director of Spectrum Technology in Ofcom. At Ofcom he has led technical research and supporting Ofcom policy development across a wide range of topics including: the internet of things, fixed and mobile availability and performance, unlicensed Wi-Fi spectrum, future use of UHF spectrum, network neutrality and next generation broadband access. Before joining Ofcom, David worked for the Independent Television Commission where he held the position of Deputy Director of Technology, and before that he led the high frequency research and development activities in Thomson Multimedia based in Rennes. David holds a degree and PhD in Electrical and Electronic Engineering.

Simon Pike - Independent consultant, Independent

Simon Pike has worked in the mobile industry for more than 25 years. For fifteen years up to 2016, he was Chief Engineer, Regulatory and Spectrum for Vodafone Group, which he represented in UK, European and global meetings on radio spectrum management, mobile technology and standards. He has been Chair of groups in ITU (WRC-03), CEPT, ETSI (SMG8 and TFES) and Spectrum Policy Forum (Cluster 4). For the last year up to June ‘18, Simon was a 5G Adviser in DCMS, focussing on supporting policy for rail passenger connectivity. Immediately prior to this meeting, he will be giving a presentation on ‘5G: The Vision, the Reality and the Future’ at the International Broadcasting Convention (IBC 2018) in Amsterdam.

Stephen Wales - Roke Manor Research

Stephen Wales has worked in Industrial Research and Development for Roke Manor Research on wireless communications covering mobile, satellite and defence applications. His expertise lies in the design of the physical layer and signal processing applied to wireless systems. He has contributed to 3GPP standards and has performed numerous studies relating to wireless communication across industry and Government. He has researched and developed a number of interference cancellation techniques applicable to mobile and defence applications. He currently leads the wireless communication capability at Roke Manor Research.

SIG Champions

Mark Beach - Professor of Radio Systems Engineering, University of Bristol (Communication Systems & Networks Research Group)

Mark Beach received his PhD for research addressing the application of Smart Antenna techniques to GPS from the University of Bristol in 1989, where he subsequently joined as a member of academic staff. He was promoted to Senior Lecturer in 1996, Reader in 1998 and Professor in 2003. He was Head of the Department of Electrical & Electronic Engineering from 2006 to 2010, then spearheaded Bristol’s hosting of the EPSRC Centre for Doctoral Training (CDT) in Communications. He is the Co-Director of this centre. He leads research in the field of enabling technologies for the delivery of 5G and beyond wireless connectivity; which includes the recent award of an EPSRC Prosperity Partnership in the field of Secure Wireless Agile Networks (SWAN). Mark’s current research activities are delivered through the Communication Systems and Networks Group, forming a key component within Bristol’s Smart Internet Lab. He has over 30 years of physical layer wireless research embracing the application of Spread Spectrum technology for cellular systems, adaptive or smart antenna for capacity and range extension in wireless networks, MIMO aided connectivity for through-put enhancement, experimental evaluation and optimization of Massive MIMO, Millimetre Wave technologies as well as flexible RF technologies for SDR modems. With a strong industrially focused research portfolio, he is also the School Research Impact Director.

Brian Collins - Managing Consultant, BSC Associates

Brian has designed antennas for applications including radio and TV broadcasting, base stations, handsets and consumer products, and has operated his own consultancy firm for the last 12 years. He has published more than 70 papers on antenna topics and contributed chapters to several recent textbooks. He operates a small consultancy company, chairs the Antenna Interface Standards Group and is an Honorary Visiting Professor in the School of Electronic Engineering and Computer Science at Queen Mary, University of London.

Paul Harris - Principal Wireless Architect, VIAVI Solutions

Paul is a wireless technology expert with experience across a range of areas including research, design, implementation and standardisation. He received his PhD from the University of Bristol for evaluating the performance of massive MIMO technology in the lead-up to 5G and is currently a Principal Wireless Architect within the CTO Office at VIAVI Solutions providing thought leadership on new and emerging technologies for 5G, 6G and beyond. In line with this he represents VIAVI within a range of bodies and fora including 3GPP, the O-RAN Alliance, ETSI, the Next G Alliance, the 6G-IA and the UKTIN. His experience prior to joining VIAVI includes representing Vodafone within 3GPP for radio performance aspects, contributing to the development of massive MIMO channel estimation solutions at Cohere Technologies, and working with customers as a domain expert at National Instruments to establish effective research solutions using software-defined radio. He is also a Chartered Engineer, Senior Member of the IEEE, Fellow of the ITP, and an Honorary Industrial Fellow at the University of Bristol.

Peter Kibutu - 5G NTN Market lead, TTP plc

Peter has been working in the cellular industry for over 15 years, specialising in modem system architecture and physical layer development. Before joining TTP, Peter worked in the development of 2G/3G/4G wireless modem products and small-cell base station projects for a number of leading cellular equipment vendors. At TTP Peter has worked with a wide range of clients in the satellite and cellular communication domains, specialising in end-to-end system engineering, modem system development and advising on commercial aspects. Currently Peter is the TTP technical lead for 5G/6G activities and represents the company in range of industry bodies including 3GPP and UKTIN.

Peter Topham - Principal Engineer, Qualcomm Technologies International

Peter has more than 30 years experience of RF and high-speed circuit design, taking chips into production ranging from FM Band II through cellular, Bluetooth and on to UWB at 10GHz. He has been with Qualcomm for 7 years, specialising in low-power RF design for portable and wearable products.

Simon Fletcher - CEO, Real Wireless

Simon joined Real Wireless in January 2016 as Chief Technology Officer, taking overall technical and innovation strategy responsibility across the company. He is a member of the UK5G AB, co-chair of the International WG, and member of the Climate WG. His long-standing association with the UK innovation eco-system through roles such as Director of mVCE and the Innovate-UK ICT-KTN brings a wealth of practical knowledge on open innovation to accelerate product and services delivery. Simon spent his formative years in telecoms infrastructure systems and product development. In NEC Corporation he played a key role in the formation of Joint Ventures for development of 3G and 4G products and established a core team that developed the first-generation of technology for 4G systems culminating in a Steering Board position in the LTE SAE Trials Initiative (LSTI). In recent times he has directed projects on future cities, the application 5G and IoT in industry verticals with an event horizon towards 2030. His long participation in Common Public Radio Interface (CPRI) and then directing Real Wireless engagement in H2020 and the 2016 NIC study on Future Comms infrastructure brings great foresight on a range of architectural evolutions underway in 5G architectures, in particular for Open RAN and Diversification. He is a CW Small Cell SIG Champion, and in February 2022 the Small Cell Forum (SCF) appointed Simon as their Chief Strategy Officer, drawing on 25 years direct industry experience and work as an advisor to governments, regulators and big business.

Caroline Gabriel - Research Director, Analysys Mason, Co-founder and Research Director, Rethink Technology Research

Caroline has been engaged in technology analysis, research and consulting for 30 years and since 2002, has been focused entirely on mobile and wireless. As co-founder and research director of Rethink Technology Research, Caroline has developed a significant research base and forecast methodology, based around deep contacts with mobile and converged operators round the world. This addresses critical issues and trends in mobile and wireless infrastructure, and particularly operator deployment intentions for 4G, 5G, small cells, Cloud-RAN and other technologies. She is also a senior contributor to Analysys Mason’s Next Generation Wireless research programme. She has led research and consulting projects with a wide range of clients, including mobile infrastructure vendors, large and start-up operators, regulators, trade bodies, government agencies and financial institutions. Her advice and forecasts have helped inform strategic decisions at a wide range of vendors, operators, start-ups and finance houses. Prior to setting up Rethink, Caroline held various executive positions at VNU Business Publishing BV, then Europe’s largest producer of technology related B2B reports and publications. She was the European content and research director, and was a member of the leadership team for VNU’s online business. She holds an MA from the University of Oxford.

Vicky Messer - VP Product Management, Picocom

Vicky Messer is VP of Product Management at Picocom with over 25 years of experience in the wireless industry. Vicky joined Picocom over 4 years ago and leads Product Management, Technical Marketing and partnership activities. Vicky also leads the Picocom Small Cell Forum (SCF) activities and joined the board member at Small Cell Forum (SCF). In recognition leading in multiple work items and a published papers, Vicky was awarded the SCF ‘Outstanding Individual Contribution to SCF award’ in 2020.

Vicky is a certified IET registration mentor, and currently mentors a local young female engineer. In May 2023 Vicky joined Industrial Advisory Board Bath University Electronics and Electrical Engineering and also won a SCF Industry Award 2023 for Women in Wireless.

Neil Piercy - Founder, Independent

Neil has been developing base stations for various communications systems for over 30 years, during which time he has performed roles throughout the whole development lifecycle, as well as management roles. Neil joined the small cell specialist company, ip.access, when it was formed as a spin-off from TTP Com back in 2000, and stayed with the company for 23 years, during which time his roles varied from System Architect through to Head of Engineering. As a Systems Engineer covering software, hardware, and RF, he includes specialist areas such as security and networking, as well as a focus on all aspects of protocol design and implementation. He has analysed system performance and performed simulations across GSM, UMTS, LTE and NR small cell RAN equipment and systems. He is now a freelance telecoms Systems Engineering consultant.

Simon Saunders - Visiting Professor, King's College London

Prof. Simon Saunders is an independent advisor and researcher with deep industry and academic background in communication systems technology and a burgeoning interest in the intersection between real and artificial neural systems, communication systems and music. He is a Visiting Professor at King’s College London, telecoms advisor to DCMS and Trustee of the charity Music for All.

Simon is a specialist in the technology of wireless communications, with a technical and commercial background derived from senior appointments in both industry (including Google, Motorola and Philips), academia (University of Surrey, Trinity College Dublin) and regulation (Ofcom).

He founded the Small Cell Forum and chaired this industry association from 2007-12, growing membership to 150 companies and working with 3GPP to create the first standards for small cells. He acted as Director of Emerging & Online Technology for Ofcom, leading Ofcom’s Emerging Technology programme and creating their Online Tech team. At Google (2015-20), he worked with operators globally to enhance wireless connectivity via a range of advanced technology initiatives, combining wireless networks, artificial intelligence and network virtualisation. As co-founder and Director of Technology for independent wireless strategy advisory firm Real Wireless (2006-15), he was responsible for overall technical capability and direction, providing independent wireless expertise and advice to operators, regulators, technology and law firms and wireless users. In 2019 Simon organised the world’s first 5G music lesson on behalf of charity Music for All, led by famous musician Jamie Cullum.

He is an author of over 150 articles, books and book chapters, including a popular textbook on antennas and propagation. He has invented over 15 patented wireless technologies and served on technical advisory boards of several companies and universities.

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Digital Catapult, 101 Euston Road, London NW1 2RA

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