Transcript EIC - Ericsson

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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Mikael Prytz
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)  Nuser*cost( ) + cost(system)
• cost(system)  NBS *(cost( ) + cost(
to BS)) + other(
)
 Aservice N userWuser 

NBS  max  2 ,
 R

W
max
system


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 10-100’fold for future mobile services
=> NBS increases
=> cost(system) increases
• Who pays for all the fun? Ultimately the end users.
Issue: ARPU(future)  ARPU(now)
(Average Revenue Per User)
=> lower the cost of infrastructure
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Actors in Today’s 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 high
Local 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
Business district
LAP
Micro BS
Micro BS
LAP
Residential
area
Micro BS
LAP
Macro BS
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LAP Network Architecture
Business district
Micro
BS
LAP
Micro
BS
Residential
area
LAP
Micro
BS
LAP
Macro
BS
Core network
LAP-C
LAP-C
Internet
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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 Franchising
Operator 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 user’s traffic go through the LAP
– Bundled service offerings:
LAP + 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?
– ”what’s 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 today’s 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
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“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 Operator’s
Network,” Proc. WWRF#12, 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.
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