Regional Information Meeting and Workshop relatedto the RRC06 for the administrations of the Arab co

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Regional Information Meeting and Workshop
related to the RRC-06 for the administrations of
the Arab countriesDamascus, Syria 16-18 August
2005

• Analysis of the results of the first planning
  exercise

Pham Nhu Hai Radiocommunication Bureau
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Outline

• Purpose of the first planning exercise
• Input data
• Planning process
• Overall results
• Analysis of the results
• Elements impacting on the results
• Conclusions

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Purpose of the FIRST exercise

• Administrations
• Prepare input requirements
• Test planning options
• Spectrum capacity
• Familiarise with software
• BR and PXT
• Testing planning assumptions
• Test planning software
• Implement planning software

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Input data

• 98 member states and PSE submitted requirements
• 21 did not
• 2 from EBA
• 18 from ABA
• 1 from RCC

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Requirements - overall
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Requirements - overall
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Your requirements
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Your requirements
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Analogue TV Overall input
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Your analogue TV - Input
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Other primary services - Input
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Administrative declarations
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Administrative declarations
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Planning process

• Analysis
• Acceptable channels
• Potentially available channels
• Compatible/incompatible requirements
• Synthesis
• Order requirements
• Assigning channel

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Band III - Results
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Band III Your results
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Band IV and V - Results
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Band IV and V Your results
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Analysis Impact of OS and BC

• Case 1 OS and BC 104569 available channels
  identified
  
• Case 4 No OS and No BC 407602 available
  channels identified
  
• OS and BC consume nearly ¾ spectrum available
• 2 coverage is expected if taking OS and BC into
  account

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Band III - Case1 (OS and BC)

• 9582 requirements for synthesis
• 4474 (47) without available channels not
  assigned with a channel.
  
• Some of these may be submitted with one or few
  acceptable channel.
  
• 2.7 available channel for each requirement
• 25 incompatibilities for each requirement

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Band III - Case1 (OS and BC)

• 9582 requirements for synthesis
• 330 (3) have no incompatibility
• 4067 (42) with 1 available channel and between
  1 to 214 incompatibilities
  
• If many incompatibilities unlikely assigned
  with a channel
  
• As many as 227 IC for a requirement

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Band III Case 4 (No OS/BC)

• 9582 requirements for synthesis
• 991 T-DAB with 32 available channels
• 6 available channels for each requirement
• 75 ncompatibilities for each requirement
• As many as 607 ICs for a requirement

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Band III Case 4 (No OS/BC)

• 9582 requirements for synthesis
• All requirements have at least 1 AC
• 1678 No IC get a channel
• 1665 only 1 AC get a channel coordinated
  well
  
• 5962 (63) with 1 available channel and between
  1 to 379 incompatibilities
  
• If many incompatibilities unlikely assigned
  with a channel
  

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Band IV/V - Case1 (OS and BC)

• 38602 requirements for synthesis
• 13534 (35) without available channels not
  assigned with a channel.
  
• Some of these may be submitted with one or few
  acceptable channel.
  
• 1081 with 49 available channels

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Band IV/V - Case1 (OS and BC)

• 38602 requirements for synthesis
• 3274 (
• 18881 (49) with 1 available channel and between
  1 to 300 incompatibilities
  
• If many incompatibilities unlikely assigned
  with a channel
  

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Band IV/V Case 4 (No OS/BC)

• 38602 requirements for synthesis
• 7207 with 49 available channels
• Each AC requested by 7800-8400 requirements
  evenlyrequetsed
  

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Band IV/V Case 4 (No OS/BC)

• 38602 requirements for synthesis
• All requirements have at least 1 AC
• 11948 No IC get a channel
• 11866 only 1 AC get a channel coordinated
  well
  
• 28521 (74) with 1 available channel and between
  1 to 1170 incompatibilities
  
• If many incompatibilities unlikely assigned
  with a channel
  

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Results in RRC countries

• High percentage of requirements assigned with
  channels
  
• coordination activities
• Administrative declarations
• Areas where channels not assigned of analogue services (unintended)
  
• Some border areas low success rate need more
  studies
  

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Elements impact on the results

• Excessive input requirements for the available
  spectrum and errors in the preparation and
  submission of input requirements by
  administrations
• Internal incompatibilities between requirements
  and existing assignments/requirements (from the
  same countries)

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More important element..

• Modification to planning software to enable some
  intervention in the random approach in the
  synthesis process equitable access
  
• Very high transmitter power assignments
  (sometimes linked with allotments)

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More important elements

• Submissions of administrative declarations, both
  internal and with neighbouring countries which
  can, for example, take account of realistic
  terrain features.

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Less important elements

• Test points/reference networks in the sea
• Assignments and/or allotments for very large
  service areas

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How many coverage?

• in Band III, sharing between T-DAB and DVB-T
  services, a possible target could be one (1)
  DVB-T and three (3) T-DAB
  
• in Bands IV and V, a nominal target of 6-7 layers
  may be possible
  
• in areas of extreme propagation conditions, the
  number of layers is expected to be less

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One recommendation

• First - identify areas where there are a large
  number of incompatibilities
  
• Consider how to resolve these incompatibilities.
• This was found to an effective planning approach
  by some administrations.
  

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Plan for very large service area
assignments/allotments?

• consider the potential of self interference and
  interference to the neighbouring areas
  
• combination of small and large allotments in the
  same geographical area is likely to result in
  unbalanced distribution of channels
  
• the size of an allotment area should generally be
  slightly greater than the co-channel reuse
  distances
  

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Three sure ways to achieve better results

• Coordination
• Negotiation
• Coordination and Negotiation

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Thanks for your attention