Soon, you can do whatever you want, wherever you want Ericsson and KTH turn Mobile Internet upsidedo

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Soon, you can do whatever you want, wherever you
want Ericsson and KTH turn Mobile Internet
up-side-down

• Mikael Prytz, Olof Lundström
• Ericsson Research, Wireless Access Networks
• Klas Johansson, Miguel Berg, Johan Hultell, Jan
  Markendahl, KTH
• Jonas Lind and Niklas Kviselius, SSE

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Mobile Communication Systems
other networks, e.g., Internet
service area Aservice


mobile phone, laptop
wireless (mobile) link
base station (BS)
fixed transmission link
terribly complicated magical box
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Cost of Mobile Systems
Note cost PV(CAPEX) PV(OPEX)

• cost(total) ? Nusercost( ) cost(system)
• cost(system) ? NBS (cost( ) cost( to
  BS)) other( )
• NBS ? Wuser average user capacity
  to produce service Wsystem maximum capacity
  per base station Rmax maximum base station
  cell radius

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Future Growth The Cost Barrier

• Wuser likely grows 10-100fold for future mobile
  services
• gt NBS increases gt cost(system) increases
• Who pays for all the fun? Ultimately the end
  users.Issue ARPU(future) ? ARPU(now) (Average
  Revenue Per User)
• gt lower the cost of infrastructure

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Actors in Todays Mobile Networks

• End users
• Operators
• integrated scope mobile services, mobility,
  wireless connectivity
• wide area coverage (national, multi-national,
  c.f., Vodafone)
• Regulators

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Research Concept Local Access Points (LAP)
Integrated in Mobile Networks

• Observation Fixed broadband access penetration
  in homes, small businesses, building societies,
  etc. is highLocal Access Points (LAP)
  Integrated in Mobile Networks
• end users deploy small base stations, Local
  Access Points (LAP)
• LAPs are connected to the existing fixed
  broadband connections
• other operator subscribers are allowed to use the
  LAPs
• LAPs give mobile network operators extra capacity
  at low cost for less critical services in densely
  populated areas

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LAP Deployment
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LAP Network Architecture
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LAP Technical Features

• LAP cheap, simple to use black box
• zero-configuration
• automatic integration into operator network on
  installation
• supports multiple radio access technologies
  (e.g., 3G, WLAN)
• end users supply power and space for the LAP
• no or very low quality-of-service guarantees
• partly autonomous, but controlled by operator
  network
• authentication, authorization, accounting
• mobility management
• charging schemes

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OK, but...

• LAPs turn end users into operators, or...?
• What are the new business roles/actors here?
• Is there a business case for operators and end
  users?
• Incentives and guarantees for end users to let
  other users in on the private broadband access?
• Is it secure?
• for end users deploying LAP
• for other users using LAP
• for operator
• OPEX costs, power, space?

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Business Issues

• Role of end user deploying LAP in relation to
  operator
• One possible model Network FranchisingOperator
  is franchiser, end user is franchisee
• Value proposition for mobile operators
• increased capacity, but no control of where it
  appears
• Value/Incentives for end users kickback
• lower tariffs when other users traffic go
  through the LAP
• Bundled service offeringsLAP WLAN access
  broadband access free mobile access when
  connected through LAP ...
• Role of / value to broadband provider (are LAPs
  allowed?)

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Open Issues Opportunities for Innovation

• complete business case for all actors to be
  verified
• which scenarios / settings?
• whats in it for me?
• potential market size?
• other business models than network franchising?
• other, competing solutions that would obviate the
  LAP concept
• quantified examples on incentives for end users,
  service bundles, etc.
• how big incentive for end user? (assuming todays
  expenditures on broadband (30-40/month) and
  mobile services (30-40/month))
• technical challenges (for the brave at heart)
• mechanisms for spectrum management (interference
  control)
• mechanisms for network monitoring

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LAP Concept Status

• concept investigated from both technical and
  business perspectives, see references
• qualitative and quantitative
• cost savings analyzed
• no detailed specifications of mechanisms
• no prototype or demonstrator

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Research Projects

• Low Cost Infrastructure
• project within Affordable Wireless Services
  Initiative
• Partners KTH, SSE (Handels), Ericsson
• Financing SSF, KTH, SSE, Ericsson
• Ambient Networks
• European Union IST 6th Framework Programme
• Partners KTH, Ericsson
• Financing EU, Ericsson

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Selected References

• Framtidens mobilnät kan byggas à la Ikea,
  artikel i Ny Teknik, 040123.
• K. Johansson, A. Furuskär, P. Karlsson, and J.
  Zander, Relation between base station
  characteristics and cost structure in cellular
  systems, Proc. IEEE PIMRC, Barcelona, 2004.
• K. Johansson, M. Berg, J. Hultell, J. Markendahl,
  J. Lind, N. Kviselius, and M. Prytz, Integrating
  User Deployed Local Access Points in a Mobile
  Operators Network, Proc. WWRF12, Toronto,
  2004.
• F. Loizillon et al., Final results on seamless
  mobile IP service provision economics,
  IST-2000-25172 TONIC Deliverable number 11, Oct.
  2002.
• N. Niebert et al., Ambient Networks An
  Architecture For Communication Networks Beyond
  3G, IEEE Wireless Communications, April 2004.