Post on 27-Mar-2015
The Channel Potential MethodThe Channel Potential Method
Dr. Roland Beutler GermanyDr. Roland Beutler Germany
Practical Considerations
Dr. Roland BeutlerFrequency Planning Department
September 2004
What do we want to achieve ?What do we want to achieve ?
generation of a pre-coordinated allotment plan in order togeneration of a pre-coordinated allotment plan in order to
i) efficiently use the spectrumi) efficiently use the spectrum
ii) facilitate the network implementation, i.e. re-use the network infrastructure
ii) facilitate the network implementation, i.e. re-use the network infrastructure
iii) achieve a high degree of mutual independence between adjacent countriesiii) achieve a high degree of mutual independence between adjacent countries
iv) assure as much compatibility as possible between analogue and digital servicesiv) assure as much compatibility as possible between analogue and digital services
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Fundamental Assumptions of theChannel Potential Method
The Fundamental Assumptions of theChannel Potential Method
i) wave propagation is modelled in terms of ITU-R Rec.1546i) wave propagation is modelled in terms of ITU-R Rec.1546
ii) interference potential of allotments is based on reference networksii) interference potential of allotments is based on reference networks
iii) compatibility analysis between allotments can be carried out by applying the concept of re-use distancesiii) compatibility analysis between allotments can be carried out by applying the concept of re-use distances
iv) mixed paths can be accounted for in terms of „effective distances“iv) mixed paths can be accounted for in terms of „effective distances“
v) topographical shielding can be accounted for manuallyv) topographical shielding can be accounted for manually
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
The Basic Steps of theChannel Potential Method
Given: a set of politically determined allotment areasGiven: a set of politically determined allotment areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Planning Area
The Basic Steps of theChannel Potential Method
Planning Area
To be taken into account:
- international boundaries
- topography
- wave propagation
To be taken into account:
- international boundaries
- topography
- wave propagation
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Definition of Allotment Areas
The Basic Steps of theChannel Potential Method
Definition of Allotment Areas
- allotment shapes determined by political conditions- allotment shapes determined by political conditions
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
The Basic Steps of theChannel Potential Method
Given: a set of politically determined allotment areasGiven: a set of politically determined allotment areas
Starting Point: ST61 or GE89 assignments to be converted into allotmentsStarting Point: ST61 or GE89 assignments to be converted into allotments
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
The Basic Steps of theChannel Potential Method
Given: a set of politically determined allotment areasGiven: a set of politically determined allotment areas
Starting Point: ST61 or GE89 assignments to be converted into allotmentsStarting Point: ST61 or GE89 assignments to be converted into allotments
Step 1: Interference limited contours for chosen channel Step 1: Interference limited contours for chosen channel
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Interference Contours
The Basic Steps of theChannel Potential Method
Interference Contours
- choose particular VHF or UHF channel (here: ch. 22)
- properly choose a set of stations according to e.r.p. (i.e. e.r.p > x kW)
- calculate interference limited coverage contours
- choose particular VHF or UHF channel (here: ch. 22)
- properly choose a set of stations according to e.r.p. (i.e. e.r.p > x kW)
- calculate interference limited coverage contours
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
The Basic Steps of theChannel Potential Method
Given: a set of politically determined allotment areasGiven: a set of politically determined allotment areas
Starting Point: ST61 or GE89 assignments to be converted to allotmentsStarting Point: ST61 or GE89 assignments to be converted to allotments
Step 1: Interference limited contours for chosen channel Step 1: Interference limited contours for chosen channel
Step 2: Calculation of channel potential areas for each stationStep 2: Calculation of channel potential areas for each station
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
The Basic Steps of theChannel Potential Method
Construction of Channel Potential Areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
The Basic Steps of theChannel Potential Method
Given: a set of politically determined allotment areasGiven: a set of politically determined allotment areas
Starting Point: ST61 or GE89 assignments to be converted to allotmentsStarting Point: ST61 or GE89 assignments to be converted to allotments
Step 1: Interference limited contours for chosen channel Step 1: Interference limited contours for chosen channel
Step 2: Calculation of channel potential areas for each stationStep 2: Calculation of channel potential areas for each station
Step 3: Unification of channel potential areasStep 3: Unification of channel potential areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Unification of Channel Potential Areas
The Basic Steps of theChannel Potential Method
Unification of Channel Potential Areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
The Basic Steps of theChannel Potential Method
Given: a set of politically determined allotment areasGiven: a set of politically determined allotment areas
Starting Point: ST61 or GE89 assignments to be converted to allotmentsStarting Point: ST61 or GE89 assignments to be converted to allotments
Step 1: Interference limited contours for chosen channel Step 1: Interference limited contours for chosen channel
Step 2: Calculation of channel potential areas for each stationStep 2: Calculation of channel potential areas for each station
Step 3: Unification of channel potential areasStep 3: Unification of channel potential areas
Step 4: Mapping of channels onto allotment areasStep 4: Mapping of channels onto allotment areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
The Basic Steps of theChannel Potential Method
Mapping of Channels onto Allotment Areas
The Basic Steps of theChannel Potential Method
Mapping of Channels onto Allotment Areas
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
An International Multi-Lateral Example
Aut, CH and D in Channel 29
An International Multi-Lateral Example
Aut, CH and D in Channel 29
Dr. Roland BeutlerFrequency Planning Department
September 2004
Some RemarksSome Remarks
• all available VHF/UHF channels are processed
selection of optimal frequency for considered allotment area
• all available VHF/UHF channels are processed
selection of optimal frequency for considered allotment area
• selection of starting set of transmitters : ERP > X kW
other criteria are possible as well
note : too many small stations prevent successful application
• selection of starting set of transmitters : ERP > X kW
other criteria are possible as well
note : too many small stations prevent successful application
• re-use distance must be adjusted to cope with sea paths• re-use distance must be adjusted to cope with sea paths
• topography can be considered• topography can be considered
Dr. Roland BeutlerFrequency Planning Department
September 2004
ConclusionConclusion
• channel potential areas are mutually compatible• channel potential areas are mutually compatible
• existing analogue assignments and new digital allotments are mutually compatible transition facilitated transition in adjacent countries decoupled
• existing analogue assignments and new digital allotments are mutually compatible transition facilitated transition in adjacent countries decoupled
• high flexibility when designing the channel potential areas and during the subsequent mapping of frequencies to allotment areas• high flexibility when designing the channel potential areas and during the subsequent mapping of frequencies to allotment areas
• channel potential methods can be used to
- identify areas where frequencies could be used - assist the preparation of input requirements - coordinate the usage of frequencies between countries
• channel potential methods can be used to
- identify areas where frequencies could be used - assist the preparation of input requirements - coordinate the usage of frequencies between countries
Dr. Roland BeutlerFrequency Planning Department
September 2004
Thank you very muchfor your attention !
Questions?
Thank you very muchfor your attention !
Questions?