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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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Presentation Transcript
slide2

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
slide3

Overview

Frequencies & Wavelength Bands

slide4

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.

slide5

Overview

World division of RFS

slide6

Overview

frequency allocations table (chart)

slide7

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.

slide8

Overview

International allocation (9-110 KHz)

slide9

Overview

International Allocation (47-75.2 MHz)

slide10

Overview

International Allocation (150-223 MHz)

slide11

Overview

Derived from ITU-R Seminar Mexico

slide12

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

slide13

Overview

National Frequency allocation Table

slide14

Overview

Frequency Assignment and Licensing

Frequency arrangement options

- Homogeneous,

- Uniform,

- Non-uniform

slide15

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

slide17

Overview

Coordination & Notification

slide18

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.

slide21

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

slide22

Some of SMS4DC Administrative functions

Menu of User-ID and Password management

slide23

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

slide24

WinBASMS

BR IFIC

Administrative Database

Technical Database

SMS4DC

Database Relationship

slide25

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

slide42

Geographical Information System (GIS) functions

Vector of Propagation Zones defined in ITU regional plans

a) ST61 b) GE84

c) GE89 d) GE2004

slide44

GIS functions

Example of drawing line from database

slide45

Geographical Information System (GIS) functions

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

slide46

Geographical Information System (GIS) functions

3D view of a selected area

Dialog box to adjust visualeffects of 3D view

slide48

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
slide49

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…).

slide55

Entry mask to enter parameters of new station,

isotropic and a sample directional antenna patterns

slide63

Network Analysis (Maximum field strength & best server)

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).

slide68

Frequency arrangement

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

Uniform, Non-uniform channel arrangement).

slide73

Options” dialog box

Earth Station Selection dialog box

slide74

Dialog box to select coordination contours

for displaying on vector map

Coordination contour around an

Earth station in Geneva

slide75

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

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