Alfred Mutinelli,
Spectrum Management Team
Deutsche Telekom AG
Phone: +49 6151 937-2460
E-Mail: Alfred.Mutinelli@t-systems.com
The Regulatory Environment for future Mobile Multimedia Services
Dynamic Spectrum Use and Usability
Operators View
How to manage and satisfy all the increasing spectrum
requirements from the market ?
Better
Betterspectrum
spectrumsharing
sharing––
by
bynew
newtechnologies
technologies??
n
n
n
n
n
n
Cognitive Radio
Dynamic Frequency Selection
Listen before Transmit
UWB
Co-operative Networks
…
Better
Betterregulation
regulationby
bynew
new
innovative
innovativeregulatory
regulatory
procedures?
procedures?
n
n
n
n
n
n
n
Secondary Trading
Collective Use
Unlicensed Use
Spectrum “Property”
Auctioning
Spectrum Usage Rights
…
Alfred Mutinelli
Spectrum Management Team
Page 2
The Regulatory Environment for future Mobile Multimedia Services
Dynamic Spectrum Use and Usability
Operators View
The general technical sharing concept
Theoretically no
impact on existing
utilisation by
overlay sharing !
Overlay
• Cognitive systems
• Co-operative networks
P
Radio
Regulations
Dedicated Spectr.
• Command and control
• Pool / Collective Use
Underlay
f
Each additional
underlay contributes
to noise level !
• Spread Spectrum Systems
• Noise management
Alfred Mutinelli
Spectrum Management Team
Page 3
The Regulatory Environment for future Mobile Multimedia Services
Dynamic Spectrum Use and Usability
Operators View
The trade-offs regarding overlay/underlay sharing
n Each new element adds
n Each new element adds capacity
interference/restriction to
existing systems
n Total capacity will be increased
n Capacity of existing systems
will be reduced
Benefit
?
Threat
More efficient use of spectrum is not for free !
It will cause additional burden to the existing user.
Alfred Mutinelli
Spectrum Management Team
Page 4
The Regulatory Environment for future Mobile Multimedia Services
Dynamic Spectrum Use and Usability
Operators View
The technical limitation of efficiency in a spectrum portion
Shannons Law:
Maximum error-free capacity for a bandwidth
limited channel in the presence of noise:
C = W log 2 (1 + S / N )
C = channel capacity in bps
W = bandwidth in Hertz
S/N = signal-to-noise ratio
Alfred Mutinelli
Spectrum Management Team
Page 5
The Regulatory Environment for future Mobile Multimedia Services
Dynamic Spectrum Use and Usability
Operators View
What about “technology neutrality” and “service
neutrality” regarding sharing?
Technology
TechnologyNeutrality
Neutrality
Service
ServiceNeutrality
Neutrality
……implies
impliesthat
thatany
anytechnology
technologyhas
has
totobe
betechnically
technicallycompatible
compatibleatatthe
the
band
bandedges
edges
……means
meansthat
thatservices
servicesmay
maybe
be
provided
providedininany
anyband
banddesignated
designated
as
aslong
longas
asefficient
efficientuse
useofofspectrum
spectrum
isisnot
notendangered
endangered
TN and SN introduce more flexibility for spectrum users but
generate some uncertainties regarding sharing!
Alfred Mutinelli
Spectrum Management Team
Page 6
The Regulatory Environment for future Mobile Multimedia Services
Dynamic Spectrum Use and Usability
Operators View
More efficient use of spectrum by better regulation ?
nn
nn
By
Bymore
moreflexible
flexibledistribution
distributionof
ofrights
rightsfor
forspectrum
spectrumaccess
access
By
Bymore
moreflexible
flexibleconditions
conditionsfor
foruse
useof
ofspectrum
spectrum
Recommendations from an operators view:
n
Careful introduction of any new measure required !
n
No discrimination of existing users !
n
Don’t change the rules during “the game” !
Alfred Mutinelli
Spectrum Management Team
Page 7
The Regulatory Environment for future Mobile Multimedia Services
Dynamic Spectrum Use and Usability
Operators View
Recommendations from an operators view (cont.):
n
Any new measures should first concentrate on bands which
are not efficiently used presently and in the near future.
n
Exclude bands for mass market services (e. g. cellular
mobile services via GSM, UMTS/IMT-2000 bands).
n
Regulators have to keep in charge of interference
management
n
Use ex-ante regulation for interference management not
ex-post !
Alfred Mutinelli
Spectrum Management Team
Page 8
The Regulatory Environment for future Mobile Multimedia Services
Dynamic Spectrum Use and Usability
Operators View
Most important factor for all market players is
confidence in the restructuring process !
Too much threat will hinder the development of the
new regulatory framework !
Create a climate of confidence !!!!
Focus on voluntary measures (e.g. sec. trading)
Use careful trial and error methods
Take care of existing user rights, investments &
competition situation
Early involvement of users/operators!!
Alfred Mutinelli
Spectrum Management Team
Page 9
The Regulatory Environment for future Mobile Multimedia Services
Dynamic Spectrum Use and Usability
Operators View
An Example of efficient use of spectrum !
A GSM Network in Germany:
n
30 Mio customers (of 82 Mio Population)
n
> 20,000 Base Stations
n
100 % pop coverage
n
Great variety of Voice and Data services, VAS, etc.
n
More than 20 Mio calls (mo) per day
n
More than 1 Bill SMS per month
All that in 35 MHz of Spectrum !!!
Alfred Mutinelli
Spectrum Management Team
Page 10
Thank you for your attention
Alfred Mutinelli
Telephone: +49 6151 937-24 60
E-Mail: Alfred.Mutinelli@t-systems.com
Alfred Mutinelli
Spectrum Management Team
Page 11