Analysis of the results of the first planning exercise
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Transcript of Analysis of the results of the first planning exercise
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Regional Information Meeting and Workshop relatedto the RRC-06 for the administrations of the Arab countriesDamascus, Syria 16-18 August 2005Analysis of the results of the first planning exercise Pham Nhu HaiRadiocommunication Bureau
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OutlinePurpose of the first planning exerciseInput dataPlanning processOverall resultsAnalysis of the resultsElements impacting on the resultsConclusions
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Purpose of the FIRST exerciseAdministrationsPrepare input requirementsTest planning optionsSpectrum capacityFamiliarise with softwareBR and PXTTesting planning assumptionsTest planning softwareImplement planning software
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Input data98 member states and PSE submitted requirements21 did not2 from EBA18 from ABA1 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 processAnalysisAcceptable channelsPotentially available channelsCompatible/incompatible requirementsSynthesisOrder requirementsAssigning 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 BCCase 1 OS and BC 104569 available channels identified Case 4 No OS and No BC 407602 available channels identifiedOS and BC consume nearly spectrum available2 coverage is expected if taking OS and BC into account
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Band III - Case1 (OS and BC)9582 requirements for synthesis4474 (~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 requirement25 incompatibilities for each requirement
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Band III - Case1 (OS and BC)9582 requirements for synthesis330 (3%) have no incompatibility4067 (~42%) with 1 available channel and between 1 to 214 incompatibilities If many incompatibilities => unlikely assigned with a channelAs many as 227 IC for a requirement
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Band III Case 4 (No OS/BC)9582 requirements for synthesis991 T-DAB with 32 available channels6 available channels for each requirement75 ncompatibilities for each requirementAs many as 607 ICs for a requirement
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Band III Case 4 (No OS/BC)9582 requirements for synthesisAll requirements have at least 1 AC1678 No IC => get a channel1665 only 1 AC => get a channel => coordinated well5962 (~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 synthesis13534 (~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 synthesis3274 ( unlikely assigned with a channel
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Band IV/V Case 4 (No OS/BC)38602 requirements for synthesis7207 with 49 available channelsEach AC requested by 7800-8400 requirements evenlyrequetsed
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Band IV/V Case 4 (No OS/BC)38602 requirements for synthesisAll requirements have at least 1 AC11948 No IC => get a channel11866 only 1 AC => get a channel => coordinated well28521 (~74%) with 1 available channel and between 1 to 1170 incompatibilities If many incompatibilities => unlikely assigned with a channel
- Results in RRC countriesHigh percentage of requirements assigned with channelscoordination activitiesAdministrative declarationsAreas where channels not assigned
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Elements impact on the resultsExcessive input requirements for the available spectrum and errors in the preparation and submission of input requirements by administrationsInternal 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 accessVery high transmitter power assignments (sometimes linked with allotments)
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More important elementsSubmissions 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 elementsTest 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-DABin 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 recommendationFirst - identify areas where there are a large number of incompatibilitiesConsider 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
CoordinationNegotiationCoordination and Negotiation
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Thanks for your attention