implementation of dttb case study - australia · •monthly transmission & spectrum working...

Consultants Pty Ltd Specialists in Broadcast and RF Spectrum © 2015

Implementation of DTTBCase Study - Australia

Andrew KingDirector : BroadSpectrum Consultants

Chair : Australian Radiocommunications Study Group 6 (Broadcasting)

25th May 2015


2

CENTRALIMPARJA (9,10)

Southern Cross (7)

DARWIN

MILDURA

GRIFFITH

BRISBANE

REGIONAL W.A. (3 sub markets)

Prime (7)

WIN (9, 10)

SYDNEY

MELBOURNE

PERTH

Northern NSW (6 sub markets)

PRIME (7)

NBN (9)

Southern Cross (10)

Southern NSW (5 sub markets)

PRIME (7)

WIN (9)

Southern Cross (10)

TASMANIA (2 sub markets)

WIN (9)

Southern Cross (7 & 10)

Victoria(6 sub markets)

PRIME (7)

WIN (9)

Southern Cross (10)

Queensland (7 sub markets)

7 QLD (7)

WIN (9)

Southern Cross (10)

ADELAIDE

South AustraliaSouthern Cross (7,9,10)

WIN SA (7,9,10)

- LOXTON

- MT GAMBIER

Australian Terrestrial TV Licence Areas


Metro69 tx sites

144 pp/km2

Remote175 tx sites0.07 pp/km2

Regional367 tx sites6 pp/km2

Free to air broadcasts :2 national services3 commercial services1 community service (limited areas)


3

A Variety ofTransmission Facilities

High Power VHF

Medium Power UHF

Low Power UHFinfill


Australian broadcast & communications environment– regulatory players

4

Content Carriage

INDUSTRY BODIES WITH

CO-REGULATORY FUNCTIONS

Telecommunications

Industry Ombudsman (TIO)

Communications

Alliance

MINISTER FOR COMMUNICATIONS

POLICY ADVICE

Department of Communications

OPERATORS

USERS

•National Broadcasters

•Commercial Broadcasters

•Community Broadcasters

•Subscription Broadcasters

•Narrowcasters

•Carriers

•Telephone Service Providers

•Internet Service Providers

•Broadcast Transmission

Providers

Industry User Groups Consumer Groups

Australian Competition

and Consumer Commission

(ACCC)

Australian Communications

and Media Authority

(ACMA)

GOVERNMENT REGULATORS

Free TV Australia

(Commercial Television

Industry Body)

Commercial Radio

Australia (CRA)

Internet Industry Association

(IIA)

Australian Subscription

TV and Radio Association

(ASTRA)

INDUSTRY BODIES WITH

CO-REGULATORY FUNCTIONS

Community Broadcasting

Association of Australia

(CBAA)

Regulation Accountability


Roadmap Overview

5

1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014

1. Preparation and Planning

4. Analogue Switch Off

2. Implementation

Original Simulcast Duration – Metropolitan Areas

5. Digital Restack

3. Digital Enhancement

Original Simulcast Duration - Regional Areas

International and Initial Work Domestic Planning

Planning Installation

Planning Switch off by region

Planning Restack

DTTB Commences1st January 2001

Last analogueTV switch off

10th December 2013

Spectrum Release31st December 2014

First analogueTV switch off

30th June 2010


Preparation & Planning

• ABA Specialist Group on Digital Terrestrial Broadcasting 1993 – 1997

• Broadcaster-led Specialist Group

• Selection Panel– Choice between ATSC and DVB-T

• Planning Implications– Same coverage; digital tx at analogue tx sites 6dB

lower power

– Urban, suburban and rural field strengths defined for Bands III, IV & V

6


Preparation & Planning 2• Government Decisions

– Broadcasters provided a 7MHz channel for digital– Metros commence 1/1/01, Regionals 1/1/04– Nominally an 8 year simulcast– Minimum quota of HD (20 hours / week)– Triplecast (SD/HD/analogue)– No multichanneling, but can “multiview”

• Technical Decisions– DVB-T MPEG-2 SD/HD– No SI “cross carry” (no multiplex operator)

• Implications for “interference”

– HD bitrate compromised by SD– Audio up to 5.1– captioning

7


Transmission Standard

8

OthersModulationDataService InformationTeletext / SubtitlesCoding

Conveying in System B

ETSI EN300472

Digital television—Terrestrial broadcasting

Part 1: Characteristics of digital terrestrial television transmissions

AS4599.1.

DSM-CC

AS/NZS 13818-6

Video / Audio

Implementation

ETSI TS101154

MPEG2 over IP

ETSI TS102034

IP Framework

ETSI TR102033

Video / Audio Spec

ETSI TS102005

DVB / ETSI Standards etc

Broadcaster Operational Practices

VBI in data in DVB

ETSI EN301775

Enhanced Teletext

ETSI EN300706

DVB-H Implementation

ETSI TR102377

Service Info

ETSI EN300468

Data Broadcasting

ETSI EN301192

Service Info

Implementation

ETSI TR101211

Service Info codes

ETSI TS101162

TV Anytime

ETSI TS102323

Data Broadcasting

Implementation

ETSI TS101202

DVB-T Implementation

ETSI TR101190

DVB-H

ETSI EN302304

MIP for SFN

ETSI TS101191

Software Update

ETSI TS102006

Framing & Modulation

ETSI EN300744

Misc Standards covering

Conditional Access

Interactive Middleware

Copy Protection

Measurement

Closed Captions

OP42

LCN

OP41

Electronic Service Guide

OP44

Content Codes

OP39

Service Replacement

Service

OP43

Time Related Tables

OP45

EIT Schedule

OP58

ONID & NID Allocations

OP40

SSU

OP46

Note : System Characteristics have changed over time.

2011 Version indicated.


Broadcast Structure (Pre Digital)

99

A Tx

Translator

A TxBroadcaster

studios

Re-tx

A Tx

Unit

House

10mDefinitional Planning Height

BuildingBody Corporate

BroadcasterControl

Main

Transmitter

Studio to Transmitter

Link

Viewer

Self- HelpOperatorControl

Manufacturer

f1

f2

f3

http://images.google.com.au/imgres?imgurl=http://house-renderings.archiform3d.com/06-bridgeway-house-renderings/3d-renderings/03-bridgeway-house-rendering.jpg&imgrefurl=http://house-renderings.archiform3d.com/06-bridgeway-house-renderings/03-house-rendering.htm&h=675&w=1200&sz=114&hl=en&start=46&tbnid=EWmLZMPmVXAPmM:&tbnh=84&tbnw=150&prev=/images?q%3Dhouse%26start%3D40%26gbv%3D2%26ndsp%3D20%26svnum%3D10%26hl%3Den%26sa%3DN



Broadcast Structure (Simulcast)

1010

BroadcasterControl


Link

Self- HelpOperatorControl

D Tx

A TxSD Dec

23Mbit/s

Translator

D Tx

A Tx

SDSDHD

Transmitter

Re-tx

A TxBroadcaster studios

Unit


ViewerManufacturer

House

f1,f4

f2,f5

f3





Australian DTV Growth

11

HD capable LCD / Plasma displays reach acceptable

consumer price points

Digital Australia established

Digital Switchover Taskforce established

4. Analogue Switch Off

5. Digital Restack

3. Digital Enhancement

Digital Tracker Surveys

(households)

Industry Sales Data (converted to households)

Media reform Package


Digital Reception Issues• Interference Management Scheme• Educate viewers / market to “cliff effect” of digital• Antenna maintenance “Analogue Antennas”• Masthead overload / high receive levels• Local clutter / moisture• Knife edge diffraction• SFN design

– Same frequency, time, data– “mush zones”– Failures mean interference

• Receiver software design

12


Digital Enhancement• Broadcaster review of underserved areas• Gap filler planning

– Metropolitan Licence Area Key Issues• Future-proofing, Growth areas, Building clutter

– Regional Licence Area Key Issues• Growth areas, vegetation along riverbanks

– ACMA insist on suburban field strength levels

• TV “Black spot” sites converted by broadcasters• Viewer Access Satellite Television service (VAST)• Coverage

– Metro areas: 99.4 – 99.7%– Regional areas: > 98%

13


Analogue Switch Off• Activities co-ordinated through DSTF• Government Assistance Schemes

– Households Assistance Scheme– Satellite Subsidy Scheme

• Monthly Transmission & Spectrum Working Group meetings– Broadcaster advice on gap filler roll out– co-ordination of govt resources and information

• Switch off Regions– Legislated 6 month switch off “windows”– Mildura test market 30/6/2010– Melbourne last major market 10/12/2013

14


Broadcast Structure (Digital)

1515

D TxBroadcaster

studiosConverted

Self Help

Gap Filler

Unit

House


BroadcasterControl

Main

Transmitter


Link

ViewerManufacturer

f4

f6

D Tx

Translator

f5

D Tx

New Gap

Filler

f5

D Tx

f5 SFN





Restack Objectives

1 clear the digital dividend band of broadcasting services as soon as practicable;2 plan for six digital channels at each transmission site;3 plan for six VHF channels at all metropolitan main station sites;4 plan such that coverage of all six channels is similar;5 maintain or improve digital television coverage; 6 simplify viewer reception of terrestrial digital television; 7 establish spectrum planning arrangements that support future needs;8 retain 14 MHz of spectrum in VHF Band III for possible expansion of digital radio;9 comply with the legislated framework;10 consistent with the minister’s direction, the ACMA should wherever possible:

a) minimize viewer costs and disruption; b) minimize commercial and national broadcaster costs.

In licence area overlap regions, nine services per site would be planned at existing transmission sites.

16


Restack Planning Principles

Principle 1 : Use Ch 6 – 12, 28 – 51Principle 2 : create sub-band for DAB+ in Ch 9 9APrinciple 3 : Plan 6 digital channels in each area (9 for overlap regions)Principle 4 : Plan so viewers have only one band antennaPrinciple 5 : Plan services within defined blocksPrinciple 6 : Channel assignment rulesPrinciple 7 : Transmission site block assignment rulesPrinciple 8 : Make all SFNs the samePrinciple 9 : Plan for DVB-T 64QAM, 2/3 FEC, 1/16 GI with co-channel protection ratio (20dB) and defined field strengths Principle 10 : Equalise technical parameters between broadcastersPrinciple 11 : Determine timing windows for the restack

17


Restack Planning Model

18

6 3934332812 40 45 46 51

Block A Block B Block C Block D Block E

174 DAB+ 230 526 568 610 652 694MHz

• Planning Methodology– Queensland study

• 198 transmitters in Ch 52 – 69 needed moving

• Minimal moves – added 46 move transmitter moves

• Block Model – added 83 more transmitter moves

– But, long term benefits of block model recognised

– Nationwide 930 transmitters in Ch52 – 69 1,299 transmitters restacked including consequential moves


Public Information Campaigns

19


Restack Example

20

50 km

Sydney Licence Area

Central Coast Overlap

Newcastle Licence Area


SBS3

4 S

ydM

B

ney

AB

C3

0 M

anly

TCN

33

Man

ly

TEN

45

Man

ly

ATN

48

Man

ly

Spectrum Allocations Pre Sydney ASO

Digital Dividend Spectrum

AB

C6

7 B

ou

dd

i

SBS6

4 B

ou

dd

i

NB

N4

1 B

ou

dd

i

ATN

44

Bo

ud

di

TCN

47

Bo

ud

di

C

TEN

50

Bo

ud

di

NEN

32

Bo

ud

di

NEN

43

Go

sfo

rd

NB

N4

0 G

osf

ord

AB

C4

6 G

osf

ord

ATN

49

Go

sfo

rdT

TCN

52

Go

sfo

rdT

TEN

55

Go

sfo

rdT

SBS5

8 G

osf

ord

T

AB

C3

7 B

G W

NB

N6

8 B

G W

ATN

61

B G

WTC

N6

2 B

G W

TEN

65

B G

W

NEN

59

B G

W

520 694 820

Frequency (MHz)N

RN

56

Wyo

ng

AB

C3

7 N

ewc

NEN

53

New

c

NR

N5

1 N

ewc

SBS3

8 N

ewc

AN

BN

36

New

c

SBS3

9 W

yon

g

AB

C4

2 W

yon

g

ATN

60

Wyo

ng

TCN

63

Wyo

ng

TEN

66

Wyo

ng

NB

N6

9 W

yon

g

NR

N3

3 W

yon

g

NEN

30

Wyo

ng

LegendAnalogDigitalRestacked Digital

SBS2

8 S

ydn

eyTS

N2

9 S

ydn

ey

21

TCN

63

Man

ly

TEN

66

Man

ly

ATN

60

Man

ly

SBS3

9 M

anly

AB

C4

2 M

anly


Possible EIRP 64dBm/5MHz

Restack and Spectrum Licences January 2015

Digital Dividend Spectrum

520 694 820

Frequency (MHz)

Legend

DigitalRestacked Digital

AB

C3

7 N

ewc

NEN

35

New

c

NR

N3

9 N

ewc

SBS3

8 N

ewc

AN

BN

36

New

c

AB

C3

0 M

anly

TCN

33

Man

ly

TSN

29

Syd

ney

ATN

28

Man

ly

TEN

31

Man

lySB

S32

Man

ly

SBS4

0 B

G W

AB

C4

1 B

G W

ATN

42

B G

WTC

N4

3 B

G W

TEN

44

B G

W

NR

N4

8 B

G W

NEN

46

B G

WN

BN

47

B G

W

Op

tus

Tels

tra

Un

sold

Op

tus

Tels

tra

Un

sold

Gu

ard

ban

d

Mid

Ban

d G

ap

TBD

MobileTransmit

Base StationTransmit30

58

85

113

Possible EIRP 23dBm/5MHz

Typical ERP 60dBm/7MHz

22

Block B Block C Block D Block E


Thank You for your attention

Questions?

23

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