BRTSD

1
Workshop for the Arab Group of Countries
BR/TSD
Planning Software
BCD
16 - 18 ????? - ?? 2005 ???? David Botha
???? 2005
2
Workshop for the Arab Group of Countries
Procedure for the production of a plan
BR/TSD
Compatibility analysis and synthesis process
BCD
Admin/BR
Admin/BR
Analysis
BR/PXT
Admin/BR/PXT
Admin/BR
BR/PXT
Admin/BR/PXT
Synthesis
Admin.
???? 2005
3
Workshop for the Arab Group of Countries
BR/TSD
Current status
BCD
Delivery of software

• The EBU delivered
• 1. Software for the
• Prediction of the service area of analogue
  television assignments
• Compatibility assessment of digital sound
  broadcasting assignments and allotments
• Compatibility assessment of digital television
  broadcasting assignments and allotments
• Compatibility assessment
• Mutually between requirements
• Against existing and planned analogue television
  broadcasting assignments
• Against existing and planned assignments to other
  primary services
• Coded in FORTRAN

???? 2005
4
Workshop for the Arab Group of Countries
BR/TSD
Current status
BCD
Delivery of software continued

• The EBU delivered
• 2. Plan synthesis software for
• Digital sound and television broadcasting
  requirements in band III
• Digital television broadcasting in band IV/V
• Code in FORTRAN
• 3. Total package
• 74 source files resulting in 42 individual
  programs
• 28 reference data files

???? 2005
5
Workshop for the Arab Group of Countries
BR/TSD
Current status
BCD
Verification and testing

• BR assisted by PXT to specify and perform tests
  on
• 1. Basic software functionality
• Compile source code
• Execute routines based on general data examples
• Reporting errors and implement updates
• 2. Calculation verification
• Verification of basic propagation functionality
• Compatibility assessment for simple cases
• Synthesis results based on artificial problems

???? 2005
6
Workshop for the Arab Group of Countries
BR/TSD
Current status
BCD
Verification and testing continued

• BR assisted by PXT specify and perform tests on
• 3. Planning test scenarios
• Software performance vs. system requirements
• Results from analyses and syntheses
• Variation of scenario parameters
• 4. Planning exercise scenarios
• Results from analyses and syntheses
• Implementing different approaches to planning
• Findings as input to IPG meeting
• 5. Report on testing and verification submitted
  to the first IPG meeting

???? 2005
7
Workshop for the Arab Group of Countries
Current status
BR/TSD
BCD
Planning software How does it work?
Input data Reference situations New digital BC
requirements
Data conversion
Analogue TV assignment services areas
VHF and UHF treated in parallel and independently
Compatibility identification Combination of
analyses
Syntheses
???? 2005
8
Workshop for the Arab Group of Countries
Current status
BR/TSD
BCD
Planning software How does it work? (continued)
Analyses
Data preprocessing
VHF and UHF treated in parallel and independently
Syntheses Different algorithms
Combination of results Identification of best
solution
Plan
???? 2005
9
Workshop for the Arab Group of Countries
BR/TSD
Analysis
BCD
Detailed overview

• General steps
• 1. Data preparation of
• Extracts of reference situations for broadcasting
  and other primary services into text
• Requirements for digital broadcasting
  (assignments, allotments for T-DAB and DVB-T)
  into text
• Conversion of text files into proprietary binary
  files.

???? 2005
10
Workshop for the Arab Group of Countries
BR/TSD
Analysis
BCD
Detailed overview continued

• General steps continued
• 2. Calculation of
• Service areas of analogue TV assignments
• Service areas of digital broadcasting assignments
  (equivalent service areas based on noise limited
  reduced by 3 dB)
• Incompatibilities identified pair-wise between
  digital broadcasting requirements mutually
  cannot share the same channel
• Incompatibilities identified pair-wise between
  digital requirements and existing and planned
  assignments - the relevant acceptable channels
  become not available
• Incompatible when the protection margin on any
  test point and for any channel is less than 0.5
  dB

???? 2005
11
Workshop for the Arab Group of Countries
BR/TSD
Analysis
BCD
Detailed overview continued

• General steps continued
• 3. Post processing of results
• Combining of incompatibility results of different
  cases
• Analogue TV assignment ? Digital requirement
• Digital requirement ? Analogue TV assignment
• Digital requirement ? Digital requirement
• Digital requirement ?Other primary service
• Other primary service ? Digital requirement
• Consideration of administrative declarations
• Preparation of files for bands III and IV/V
  separately.

???? 2005
12
Workshop for the Arab Group of Countries
Basis of the analysis
BR/TSD
BCD
Input data

• Conversion of analogue assignments from the
  reference situation or new requirements
• Existing and planned analogue TV assignments
  taken into account
• Existing and planned assignments to other primary
  services taken into account.

???? 2005
13
Workshop for the Arab Group of Countries
Basis of the analysis
BR/TSD
BCD
Technical considerations

• Analogue assignment service areas calculation,
  multiple interference based on power sum method
• Conversions indicated and taken into account
• Calculation of estimated service areas based on
  noise limited coverage areas reduced by a margin
  by 3 dB
• No receiving antenna directivity or polarisation
  discrimination for mobile and portable indoor
  reception
• For fixed reception receiving antenna directivity
  and polarisation were taken into account.

???? 2005
14
Workshop for the Arab Group of Countries
Results of the analysis
BR/TSD
BCD
Coverage presentation

• Coverage presented relative to the IDWM national
  borders (both analogue TV assignments and digital
  broadcasting requirements)
• Selection of results possible
• Results can be displayed without having to repeat
  the calculation.

???? 2005
15
Workshop for the Arab Group of Countries
Results of the analysis
BR/TSD
BCD
Detail incompatibility information

• Conference mode
• Indicate limited worst case incompatibility
• All incompatibilities are listed
• Different incompatibility cases are provided in
  separate output files.
• Named mode
• Change the configuration file to enable this
  mode
• Detail incompatibility information provided for a
  specific site / requirement
• Information specifically useful for coordination.

???? 2005
16
Workshop for the Arab Group of Countries
BR/TSD
Synthesis
BCD
Detailed overview

• General steps
• 1. Preprocessing of incompatibility results
• Conversion of digital to digital requirement
  incompatibility results into required file
  format
• Generation of lists of available channels as
  opposed to acceptable channels
• Data prepared for each requirement
• Separate sets for bands III and IV/V.

???? 2005
17
Workshop for the Arab Group of Countries
BR/TSD
Synthesis
BCD
Detailed overview continued

• General steps continued
• 2. Synthesizing frequency plans
• Search for solutions based on input data and 49
  channels in band IV/V and 67 combinations of
  channels overlapping in band III
• Apply 162 individual fast algorithms in band
  III and 230 algorithms in band IV/V
• Software can treat 150 000 requirements in band
  IV/V and 32 000 in band III
• Requires 2 GB of random access memory.

???? 2005
18
Workshop for the Arab Group of Countries
Synthesis
BR/TSD
BCD
???? 2005
19
Workshop for the Arab Group of Countries
BR/TSD
Synthesis
BCD
Detailed overview continued

• General steps continued
• 3. Preparation of output data
• Generate combined list of all solutions found for
  each algorithm
• Identify the best solution as separate output.

???? 2005
20
Workshop for the Arab Group of Countries
Synthesis
BR/TSD
BCD
Assigning frequency resources using a structured
procedure

• Using algorithms as methods to assign channels /
  frequency blocks
• Requirements are anonymous
• Available channels are taken into account
• Incompatibilities amongst digital broadcasting
  requirements indicate that requirements cannot
  share the same channel / frequency block.

???? 2005
21
Workshop for the Arab Group of Countries
Synthesis
BR/TSD
BCD
In the absence of a full conference-like
database, the synthesis results of a limited
situation are not conclusive!!!!!!
???? 2005
22
Workshop for the Arab Group of Countries
Synthesis
BR/TSD
BCD
Synthesis the colourful way

• Plan to all have one requirement
• Acceptable choices Acceptable channels /
  frequency blocks

Green Blue Pink Yellow
???? 2005
23
Workshop for the Arab Group of Countries
Synthesis
BR/TSD
BCD
Synthesis the colourful way
Same colour as neighbour Incompatibility
Existing services Pre-selected colour
???? 2005
24
Workshop for the Arab Group of Countries
Synthesis
BR/TSD
BCD
Synthesis the colourful way
Frequency assignment Colour selection
???? 2005
25
Workshop for the Arab Group of Countries
BR/TSD
Further development
BCD
Items to be considered for improvement/correction

• General further development
• Continued verification and testing
• Report errors to EBU
• Implement corrections and repeat testing
• Suggest improvements
• PXT and IPG request changes
• Implement and test improvements and changes.

???? 2005
26
Workshop for the Arab Group of Countries
BR/TSD
Further development
BCD
Items to be considered for improvement/correction

• Specific further development
• Implement IPG-1 request for equitable access in
  the synthesis
• Implement additional planning options and
  variants
• Improvement in calculation speed
• Additional synthesis routines that improve
  planning efficiency (longer calculation time)
• Implementation of the final analysis.

???? 2005
27
Workshop for the Arab Group of Countries
BR/TSD
BCD
???? 2005
28
Workshop for the Arab Group of Countries
BR/TSD
BCD
???? ????? Thank you
???? 2005