BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Planning Software Сентябрь 2004 Москва David Botha

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Procedure for the production of a plan Compatibility analysis and synthesis process Analysis Synthesis Admin/BR BR/PXT Admin/BR Admin.

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Current status Delivery of software On 1 September 2004 the EBU delivered: 1.Analysis software for: Analogue television assignments Digital sound broadcasting assignments and allotments Digital television assignments and allotments Code in FORTRAN 2.Synthesis software for: Digital sound and television in band III Digital television in band IV/V Code in FORTRAN 3.Some analysis software for primary services other than broadcasting delivered (UHF). Some parts outstanding.

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Current status Verification and testing BR specify and perform tests on: 1.Basic software functionality: Compile different routines Execute routines based on general data examples Reporting errors and implement updates 2.Calculation verification: Verification of basic propagation functionality Interference calculations for simple cases Compatibility findings Synthesis results based on artificial problems

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Current status Verification and testing BR and 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.Testing and verification to be concluded by end Oct. 2004

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Current status Planning software components Software consists of different command line executable modules: 1.Analysis software Data conversion software Analysis modules (D to A, A to D, D to D, O to D, D to O) Compatibility identification 2.Synthesis software Data conversion software (preprocessing) Synthesis modules (bands III and IV/V separately)

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Current status Planning software: How does it work? Input data: Reference situations New digital BC requirements Data conversion Analyses: Services areas Interference Compatibility identification: Combination of analyses Syntheses VHF and UHF treated in parallel and independently

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Current status Planning software: How does it work? (continued) Analyses Data preprocessing Syntheses: Different algorithms Combination of results Identification of best solution VHF and UHF treated in parallel and independently Plan

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Analyses 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.

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Analyses Detailed overview continued General steps continued: 2.Calculations of: Noise limited coverage areas; Service areas (limited to borders and by acceptable interference); Excessive interference between requirements indicates incompatibilities; Excessive interference between requirements and existing and planned assignments indicates incompatibilities – channels not available for use.

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Analyses Detailed overview continued General steps continued: 3.Post processing of results: Combining of incompatibility results of different cases; Combining of incompatibility results of requirements with existing and planned assignments as restrictions; Preparation of files for bands III and IV/V separately.

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Syntheses Detailed overview General steps: 1.Preprocessing of compatibility results: Conversion of compatibility results into files of incompatibilities; Generation of lists of available channels; Data prepared for each requirement; Separate sets for bands III and IV/V.

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Syntheses 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 channels (overlapping) in band III; Apply 230 individual fast algorithms; Software can treat requirements in band IV/V and in band III; Require 2 GB of random access memory.

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Syntheses 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.

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Further development 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; Implement and test improvements.

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Further development Items to be considered for improvement/correction Specific further development: Extracting and publishing analysis results; Method for treating administrative declarations (compatibility and usable/unusable channels); Extracting and publishing synthesis results; Improvement in calculation speed; Additional synthesis routines that improve planning efficiency (longer calculation time); Developing alternative synthesis methods, if the number of requirements exceeds (Band III) and (Band IV/V).

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD

BR/TSD Москва 2004 Workshop for CEE, CIS and Baltic States BCD Спасибо