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Copyright Digital Video Broadcasting Project DVB

Spectrum PlanningEuropean experience

Daniel Sauvet-Goichon

DVB-TM vice chairman

Kuala LumpurDIGITAL TV 26-29 March 2007


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Content

Europe likes frequency plans

Geneva 06 plan provides flexibility

Yes, Europe has a planbut dont underestimate some difficulties!


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Pa r t I

Eu r o p e l i k e s f r e q u e n c y p l a n s


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What is a Plan?

As an example, Stockholm 61

contained:

A list of transmitters with their

characteristics

Protection rules for these

transmitters and their service area

Coordination rules to allow for

addition and modification of

transmitters


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38 Countries

5 300 stations

More than 80 000transmitters today

... added to the Planwithout major

difficulty, under ST61

coordination rules.

Stockholm 1961


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ST61 completed by Chester 97 was insufficient

+ =


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To move ahead, a new

ITU Conference was decided

RRC-06 Objectives

Replace the 1961 StockholmPlan and Agreement

Make a Plan for an a alldigital future when analogue

terrestrial TV and radio areshut off

frequency bands 174-230MHz and 470-862 MHz

118 countries involved


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June 16th 2006, ITU, Geneva

104 countries signed the Final

Acts of RRC-06 and adopted a

treaty agreement replacing the

analogue broadcasting frequency

plans (ST61 / Europe and GE89 /

Africa) with a new all digital

frequency plan in bands III, IV & V


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1.8001.800

pages!pages!

More thanMore than70.00070.000

satisfiedsatisfied

requirementsrequirements

The PlanThe Plan


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A bit of nostalgia

for those who are old enough


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Geneva 06

Plan entries

RPC1

Fixed roof

RPC2

Portable

outdoor/mobile

RPC3

Portable indoorPlan entry=

Service area+

Service type

+

Frequency

channel


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Geneva 06 requirements

Before RRC-06

Average

required

number of

layers

VHF:1 DVB-T

3 DAB Average

required

number oflayers

UHF:

8 DVB-T


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What is the theoretical UHF capacity?

Scenario 1: complete geographical coverage

Scenario 2: limited separated coverages

Two answers depending on your frequency

coverage scenario


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B

C

D

BELGIUM FRG

LUX

AFRANCE

In UHF channel range

21 to 60 (40 channels)

each neighbouringcountry can get 7 to 8

complete coverages

In this very difficult

area A, B, C & D

represents sets of 7

channels


Scenario 1 answer: you need to share with your

neighbours


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No need to take into accountinterference to other areas.

Conclusion:In UHF channel range 21 to 60

(40 channels) each area can get

up to 40 complete coverages

And now, back to Geneva 06!


Scenario 2 answer: no need to take care of your

neighbours


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Geneva 06 Plan

is a scenario 1 case

But its only first glance: much more can be done

UHF: 7DVBUHF: 7DVB

VHH 1 DVB + 3 DABVHH 1 DVB + 3 DAB


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Pa r t I I

Ge n e v a 0 6 p l a n p r o v i d e s f l e x i b i l i t y


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Flexibil ity is a built in Geneva 06 feature!

Allotments versus assignments

In an Assignment, alltechnical characteristicsare fully defined in theplan, including site, highpower

In an Allotment, the planspecifies only the servicearea and the frequency.

Actual network design isleft open.

Allotments ease cellular approaches for mobile TV


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Allotments versus assignments

Most countries even putin the plan bothpossibilities for eacharea!

The assignmentguarantees possibility ofnormal high power TV

broadcasting

While the allotments opendoor to mobile TV type ofnetworks


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Less planning constraints inland

Scenario 1 constraints (equal

treatment across borders) vanish assoon as you move away from theborder

As a consequence, scenario 2 maybe applied and give opportunity tofind new channels, for example indense populated areas, except alongdifficult boarder areas.

Example of application in the Plan

XX

XXXXXX

XX


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Less planning constraints inland

Number of coverages inany point:

Clear blue : 7to

dark blue : more than 25


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Other services allowed

1) Not exceeding spectral power density of

associated plan entry

2) Not claim more protection than afforded to

associated Plan entry

f (MHz)

W/4kHz

Plan

entry Alternativeapplication


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Pa r t I I I

Yes ,Eu r o p e h a s a p l a n

b u t d o n t

u n d e r e s t im a t e so m e

d i f f i c u l t i e s !


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End of

transition in2015;

with some

exceptions

in VHF

During the

transition period

many digitalbroadcasting

Plan entries

have restrictions

in order to protectanalogue TV

After

transition the

analogueTV Plan

will be

cancelled

After transition

restrictions in

digital broadcastingPlan relating to

analogue TV

disappear

Transition period

of 9 years

Possibility for continuation of

analogue TV after transition

On condition of not causing

unacceptable interference

and not claiming protection

UHF:

all 17/6/2015

VHF:

17/6/2015

17/6/2020

17/6/2020

Transition

From analogue to digital


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Transition

From analogue to digital

Analogue transmitters to be protected

A big difficulty

Negotiation with

neighbouring

countries needed


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Transition

Example of negotiation

11 existinganalogue TV Frenchsites

constrain

11 future digital

German sites


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Transition

Example of negotiation

Implementation constraints after coordinationBar le Duc Willeroncourt 49 47 41 44 45 52 22 50

Longwy 25 50 42 33 40 56 22 69

Verdun 25 50 42 33 30 35 22 69

Metz Luttange 30 50 36 33 40 56 47 25 58 66 69 ? 64

Nancy Malzeville 24 47 61 44 27 65 58 69?

Forbach 30 54 36 33 66 50 56 61

Sarrebourg 54 61 51 65 47 66 69 34

Strasbourg Nordheim 22 61 51 65 47 48 66? 69 54

Mulhouse Belvdre 37 54 53 55 65 32 66

Epinal - Bois de la Vierge 56 47 59 37 62 64 49

Vittel 56 58 61 37 45 64 66 69

Belfort Nord 40 29 43 51 55 26

Montbliard Agglomration40 29 43 58 55 32

Chaumont 34 40 61 42 45 64

Besanon Lomont 48 54 51 69

Besanon Montfaucon 48 54 51 69


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Mobile TV

The Plan does not fit completely

Reception conditions had to be specified for each entry

in the Plan

RPC1

Fixed roof

RPC2

Portable

outdoor/mobile

RPC3

Portable

indoor

More field strength needed6 dB


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34%66%Russia

100%Poland

100%Sweden

99%1%Finland

100%Netherlands

99%1%Germany

100%Italy

10%90%Spain

4%37%59%France

6%94%UK

RPC3RPC2RPC1

Mobile TV

mobile TV was not the first target


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A further question for optimistic countries

What can be added to the Plan?

Two questions being

presently studied by some

interested actors in France:

In how many of the 110 main

transmitter sites can we put6 more wide coverage in

addition to RRC06

channels?

Can we get 20 full coverage

of Paris area?


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Co n c l u s i o n


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Conclusion

A success

Satisfactoryfrequency plan

1

Short

transition

2

Flexible

implementation

3

RRC-06 was

very

successful

and


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Conclusion

A starting point

Appropriate type of networks for cooperative servicesto mobiles and handhelds will most probably not fitvery well in the Plan

An harmonised European mobile TV band, if any, hasstill to be found

The Plan will have to become very soon evolutionary:need for frequency agile transmitters & receivers tomove step by step and implement new services

RRC06 Plan is only a starting point for evolution

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