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Agenda. An Overview on Radio Frequency Spectrum World Division on Frequency Allocation International allocation Table/ frequency allocations to services Radio Regulations (ITU-R RR) Coordination and notification procedures National Frequency allocation Table

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Agenda

  • An Overview on Radio Frequency Spectrum

    • World Division on Frequency Allocation

    • International allocation Table/ frequency allocations to services

    • Radio Regulations (ITU-R RR)

    • Coordination and notification procedures

    • National Frequency allocation Table

    • Frequency assignment and Licensing

  • Spectrum Management System For Developing Countries

    • Administrative Functions

    • Technical Functions

    • GIS Functions


  • Overview

    Frequencies & Wavelength Bands


    UHF

    0.3 - 3 GHz

    space wave,troposphericscatter,diffraction,line-of-sight

    Generally less than 100 km

    very wide

    confined

    Short ,medium & long pt. to pt.,mobile, LAN, audio and video broadcasting, personal communications, satellite communications

    Band

    Frequency

    Mode

    Range

    BW

    Interference Volume

    Usage

    SHF

    3 - 30 GHz

    line-of-sight

    30 km;several 1000 km

    for multihop and satellite

    very wideup to 1 GHz

    generallyconfined

    Medium to short range pt.to pt.,audio and video broadcasting, LAN, mobile/personal communications, satellite communications

    VLF

    3 - 30 kHz

    wave guide

    several 1000 km

    very limited

    wide spread

    Worldwide, long range radio navigation and strategic communications

    LF

    30 - 300 kHz

    ground wave,sky wave

    several 1000 km

    limited

    wide spread

    Long range radio navigation and strategic communications

    EHF

    30 - 300 GHz

    line-of-sight

    20 km;several 1000 km

    for multihop and satellite

    very wideup to 10 GHz

    generallyconfined

    Short range pt. to pt.,microcellular, LAN and personal communications,satellite communications

    MF

    0.3 - 3 MHz

    ground wave,sky wave

    a few 1000 km

    moderate

    wide spread

    Medium range pt. to pt.,broadcasting and maritime mobile

    HF

    3 - 30 MHz

    sky wave

    up to several1000 km

    wide

    wide spread

    Long and short range pt. to pt.,global broadcasting, mobile.

    VHF

    30 - 300 MHz

    space wave,tropospherescatter,diffraction

    up to a few 100 km

    very wide

    confined

    Short and medium pt. to pt.,mobile, LAN, audio and video broadcasting, personal communications

    Overview

    Propagation modes and usages for various frequency bands

    Chap. 5 SMS Handbook (At VLF a wave guide mode between the ionosphere and the Earth allows propagation over) global distances.


    Overview

    World division of RFS


    Overview

    frequency allocations table (chart)


    Overview

    Categories of Services & allocations

    • Primary and secondary services

      • Service the name of which are printed in “capitals” (example: FIXED) are called “Primary” Services

      • Service the name of which are printed in “normal characters” (example: Mobile) are called

        “secondary” Services

      • Additional remarks shall be printed in normal characters ( MOBILE except aeronautical mobile)

    • Stations of a secondary service:

      • Shall not cause harmful interference to stations of primary services to which

        frequencies are already assigned or may be assigned at a later date;

      • cannot claim protection for harmful interference from stations of a primary service to

        which frequencies are already assigned or may be assigned at a later date

      • can claim protection for harmful interference from stations of the same or other

        secondary service(s) to which frequencies may be assigned at later date.


    Overview

    International allocation (9-110 KHz)


    Overview

    International Allocation (47-75.2 MHz)


    Overview

    International Allocation (150-223 MHz)


    Overview

    Derived from ITU-R Seminar Mexico


    Band

    Frequency

    BC/BT

    Region

    Plan

    LF

    148.5-283.5 kHz

    BC

    1

    GE75

    MF

    526.5-1 606.5 kHz

    525-1 605 kHz

    1 605-1 705 kHz

    BC

    BC

    BC

    1 and 3

    2

    2

    GE75

    RJ81

    RJ88

    HF

    5 950-26 100 kHz

    BC

    1, 2 and 3

    Art. S12

    VHF/UHF

    47-68 MHz

    87.5-100 MHz

    87.5-108 MHz

    162-230 MHz

    470-862 MHz

    470-960 MHz

    BC and BT

    BT

    BC

    BT

    BT

    BT

    1

    1

    1

    1

    1

    1

    ST61, GE89

    ST61

    GE84

    ST61, GE89

    Overview

    Broadcasting Planed Bands


    Overview

    National Frequency allocation Table


    Overview

    Frequency Assignment and Licensing

    Frequency arrangement options

    - Homogeneous,

    - Uniform,

    - Non-uniform


    Frequency assignment & Licensing

    General procedure for the frequency assignment and licensing process

    Spectrum user

    License request

    Registration of the application in the administrative database and initialization of the workflow management

    Folder creation

    The request is not accepted for an ADM reason.

    Administrative study

    Folder processing. Transmission to administrative and technical studies

    EMC analysis

    The frequency is not available because it is protected by ITU agreement.

    Verification of international coordination requirements

    The folder is transmitted to coordination study and ITU sending.

    Notifications forms generation and registration in ITU database

    License and invoice sending.

    License and invoice emission

    The folder is transmitted for license issuing and invoice generation. The relevant documents are provided to the spectrum user.

    Frequency assignment

    The folder is closed and archived. The licensing process is over.

    Source: ITU-Handbook on SMS


    Overview

    Coordination & Notification


    SMS4DC

    Annex I : Action Plan (rev.2) for development of SMS4DC

    1 Provisional test for items listed in Annex II & III.

    2 Software developers would try to make the space segment ready for provisional acceptance test.

    Note: French version of SMS4DC will be ready before WTDC-06 and the other 4 languages if required by the end of 2006.


    Deactivation

    Add Station

    Draw Polyline

    Show Legend

    Draw Line

    Calculation Overlay

    Go to Geo-directions

    Refresh

    Draw Line from Database

    Draw Box from Database

    Move Station

    Draw Profile

    Draw Box

    Toggle button to create rubber-band box for selection of a rectangular area on DEM to activate area dependent functions.

    Push button for deactivation of activated buttons. The shape of mouse is changed to normal by using this button.

    Push buttons for navigation of DEM one tile toward one of the West, North, South and East directions each time, respectively.

    Toggle button to draw line between two points and to activate functions based on predefined line.

    Toggle button for poly line drawing and activation of relevant functions based on predefined poly line.

    Push button for drawing a line between two stations and for activation of functions based on predefined line, using database of stations.

    Push button to refresh screen display and to remove overlaid area-calculation results from DEM.

    Push button for drawing a square box containing a station at its middle for activation of functions based on predefined area, using database of stations. .

    Push button to overlay area-calculation results on DEM. Once an area selected on map (using box drawing buttons) this button will be activated.

    Toggle button to move a station to a new location using mouse. Click mouse right button on the station and drag its symbol to the concerned location while holding mouse right click.

    Toggle button to add a station under one of the SMS4DC supported services.

    Push button for drawing of path profile along depicted line. Poly line drawing does not activate this button.

    Toggle button to show or remove legend of activated display. An appropriate legend is displayed depending to the activated display, i.e. DEM color legend for DEM view, field strength color legend for area calculation result window and etc.

    Toolbar of SMS4DC desktop


    Some of SMS4DC Administrative functions

    Menu of User-ID and Password management


    External Database

    BR IFIC

    WinBASMS

    Interface to the external databases

    MAPS

    LIBRARIES

    DATABASE

    SMS4DC software

    Technical & Administrative Modules

    Core of SMS4DC

    Interface to the external resources

    External Resources

    IDWM

    RR App.7

    SMS4DC

    SoftwareStructure


    WinBASMS

    BR IFIC

    Administrative Database

    Technical Database

    SMS4DC

    Database Relationship


    User view of administrative data

    Name, address, contact and classification

    Owner

    1:n

    License ID, status, duration , etc.

    License

    1:n

    1:n

    1:n

    Station name, location, type and etc.

    Payments

    Invoices

    Station

    1:n

    Name, model, radiated power, serial number and etc.

    Equipment

    1:n

    1:n

    Name, gain, pattern, Beam width, etc.

    Assigned frequency, reference frequency, bandwidth, etc.

    Antenna

    Frequency

    1:n

    1:1

    Azimuth and effective height

    Receiving area information

    Effective height

    Link

    1:1

    Pattern




    Owner Information

    Entry Table


    License Information

    Entry Table











    International & National frequency allocations table (chart)


    Geographical Information System (GIS) functions

    Vector of Propagation Zones defined in ITU regional plans

    a) ST61 b) GE84

    c) GE89 d) GE2004



    GIS functions

    Example of drawing line from database


    Geographical Information System (GIS) functions

    Topographical map of a selected area (Globe30), relevant 3D view and vector overload


    Geographical Information System (GIS) functions

    3D view of a selected area

    Dialog box to adjust visualeffects of 3D view



    Antenna Tools

    • The SMS4DC is able to:

    • §       Import antenna pattern & its characteristic from antenna library;

    • §       Modify the existing antennas in the library for generation of new patterns;

    • §       Completely generate a new antenna pattern


    Effective height of antenna calculation

    Effective height of an antenna can be calculated based on ITU-R Recommendations

    P.1546 or P.370. This parameter is needed for Field strength calculations

    in point to area services (i.e. Broadcasting, land-mobile…).







    Entry mask to enter parameters of new station, calculation

    isotropic and a sample directional antenna patterns






    Network Analysis (Maximum field strength & best server) calculation

    Coverage areas obtained through individual

    calculation for each station could be combined

    to figure out overall radio coverage of a

    multi-station network.

    Users are able to distinguish the best serving station

    for each point inside the network service area,

    by analysis of network radio coverage area.

    Above Figure displays sample analysis result for

    a WLL (wireless local loop) network built up from

    12 BTSs (base station transceivers).





    Frequency arrangement broadcasting station

    Frequency arrangement module covers three types of arrangements i.e. Homogeneous,

    Uniform, Non-uniform channel arrangement).



    Options” dialog box broadcasting station

    Earth Station Selection dialog box


    Dialog box to select coordination contours broadcasting station

    for displaying on vector map

    Coordination contour around an

    Earth station in Geneva


    Input file Result. List output file to the Ap.7/ITU-R SM.1448 (Ap28) ITU-R technical tool


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