CONTENTS

Annex 1 
Part A - Fundamental constraints and basic assumptions
 1 General
        1.1 Software composition
                  1.1.1 Purpose
                  1.1.2 Software block-diagram
                  1.1.3 Allocation of responsibilities between Administrations and the BR for software employment
        1.2 Units of measurement
        1.3 Constants
        1.4 The Earth model
 2 System requirements
        2.1 Simulation time increment and accuracy
                  2.1.1 Description of the procedure for determination of minimum downlink simulation time increment
                  2.1.2 Algorithm of determination of downlink simulation time increment
                  2.1.3 Description of the procedure for determination of minimum uplink simulation time increment
                  2.1.4 Algorithm of determining the uplink simulation time increment
                  2.1.5 Description of the procedure for determination of minimum inter-satellite simulation time increment
        2.2 Total simulation run time
                  2.2.1 Repeating orbits
                  2.2.2 Non-repeating orbits
        2.3 Longitude and latitude increments for use in the analytical method approach
Part B - Parameters of non-GSO system
 1 Introduction
        1.1 Background
        1.2 Scope and overview
        1.3 Cross references to relevant Parts
 2 Common BR database parameters
        2.1 Parameters provided by administration of the non-GSO system
        2.2 BR supplied inputs and database parameters
 3 Non-GSO system inputs to software
        3.1 Non-GSO orbit parameters
        3.2 Non-GSO RF parameter inputs
                  3.2.1 Earth stations
                  3.2.2 Satellites
                  3.2.3 epfd_is calculations
        3.3 Detailed data on mitigation technique(s) employed
        3.4 pfd spatial reference system
                  3.4.1 Uplink direction of transmission
                  3.4.2 Downlink direction of transmission
 4 Inputs to software for calculating epfd and epfd_¯ and limit-compliance checking
        4.1 Non-GSO orbit parameter inputs
        4.2 Non-GSO downlink pfd mask
        4.3     Non-GSO uplink pfd mask
        4.4 pfd compliance test points
                  4.4.1 Points identified by notifying administration
                  4.4.2 Points determined by BR in pre-processing
 5 Inputs to software for self-consistency tests
Annex  1  to  Part  B
Part C - Generation of pfd/e.i.r.p. masks
 1 Definition
 2 Generation of satellite pfd masks
        2.1 General presentation
        2.2 Mitigation techniques description
        2.3 pfd calculation
                  2.3.1 pfd calculation
                  2.3.2 Satellite antenna gain at the point considered at the Earth’s surface
        2.4 Methodology
                  2.4.1 Option 1
                  2.4.2 Option 2
 3 Generation of e.i.r.p. masks
        3.1 Generation of earth station e.i.r.p. masks
                  3.1.1 General presentation
                  3.1.2 Mitigation techniques description
                  3.1.3 Earth station antenna pattern
                  3.1.4 Methodology
        3.2 Generation of space station e.i.r.p. masks
                  3.2.1 Methodology
 4 Format of the pfd mask
        4.1 Option 1
        4.2 Option 2
Part C¢ - Maximum epfd location of GSO network
 1 Maximum epfd location of the GSO earth station pointing towards the GSO satellite, for epfd_¯ calculation
        1.1 Non-GSO system with satellites switched on in the exclusion zone
        1.2 Non-GSO system with satellites switched off in the exclusion zone
        1.3 Algorithm for the research of maximum epfd_¯ locations
                  1.3.1 Calculating S from (N, a or X, Dlong)
                  1.3.2 Calculating non-GSO satellite position
 2 Determination of GSO network location for maximum epfd
 3 Determination of GSO network location for maximum epfd_is
Annex  1  to  Part  C¢
 1 In-line geometry
 2 Downlink in-line geometry
 3 Maximum epfd_¯  geometry for non-inline situation
        3.1 Using α angle
        3.2 Using an X angle
Part D - Software for the examination of non-GSO filings
 1 Introduction
        1.1 Scope
        1.2 Background
        1.3 Overview
        1.4 Cross references
 2 General requirements
        2.1 Software environment
       2.2 Implementation requirements
        2.3 Program interfaces
        2.4 Algorithm constants
        2.5 General assumptions and limitations
        2.6 Frequency selection
 3 epfd_¯ software description
        3.1 Configuration parameters
        3.2 Determination of maximum epfd configuration
        3.3 Calculation of run steps
                  3.3.1 Time simulation approach
                  3.3.2 Analytical approach
        3.4 Inputs and file formats
                  3.4.1 Input parameters
                  3.4.2 Non-GSO system parameters
                  3.4.3 GSO system parameters
                  3.4.4 Run parameters
                  3.4.5 Other parameters
                  3.4.6 File formats
        3.5 Algorithms and calculation procedures
                  3.5.1 Time simulation approach
                  3.5.2 Analytical method approach
        3.6 pfd mask calculation
        3.7 Outputs
 4 Software description
        4.1 epfd software description
                  4.1.1 Configuration parameters
                  4.1.2 Determination of maximum epfd configuration
                  4.1.3 Calculation of run steps
                  4.1.4 Inputs and file formats
                  4.1.5 Production of non-GSO earth station distribution
                  4.1.6 Algorithms and calculation procedures
                  4.1.7 Outputs
        4.2 epfd_is software description
                  4.2.1 Configuration parameters
                  4.2.2 Determination of maximum epfd configuration
                  4.2.3 Calculation of run steps
                  4.2.4 Inputs and file formats
                  4.2.5 Algorithms and calculation procedures
                  4.2.6 Outputs
 5 Geometry and algorithms
        5.1 Earth coordinates system
        5.2 GSO satellite coordinate system
        5.3 Non-GSO satellite coordinate system
                  5.3.1 Non-GSO satellite orbit parameters
                  5.3.2 Non-GSO satellite orbit predictor
                  5.3.3 Non-GSO satellite orbit station keeping
        5.4 Geometry
                  5.4.1 Satellite visibility check
                  5.4.2 Angle to GSO arc
                  5.4.3 Satellite azimuth and elevation
        5.5 Gain patterns
                  5.5.1 GSO earth station gain patterns
                  5.5.2 GSO satellite gain pattern
                  5.5.3 Non-GSO earth station gain pattern
 6 The analytical method approach
        6.1 Probability of the reference satellite being inside a rectangular cell
        6.2 Finding the position of all satellites in the constellation
        6.3 Choosing the longitude and latitude increments for the fine and coarse grids
        6.4 Finding the PPII
                  6.4.1 Uplink interference (epfd)
                  6.4.2 Downlink interference (epfd_¯)
                  6.4.3 Inter-satellite interference (epfd_is)
        6.5 Additional use of fine grids
 7 Structure and format of results
        7.1 Go/No-go decision
                  7.1.1 Overall description of the decision process
                  7.1.2 Production of the CDF
                  7.1.3 Comparison procedure
                  7.1.4 Decision process
        7.2 Background information to decision
        7.3 Format for output
                  7.3.1 Statement of the result of the compliance test
                  7.3.2 Summary table
                  7.3.3 Probability table
Part E - Testing of the reliability of the software outputs
 1 Evaluation of the computation accuracy of the candidate software
 2 Evaluation of the epfd(_¯/) statistics obtained by the BR
 3 Verification of the pfd masks
 4 Re-testing of the BR software after any modifications or upgrades
Part F - Operational environment for the software
 1 Operating system
 2 Interfaces to existing software and databases
Part G - Software development and maintenance
 1 Software product development approach
        1.1 Methodology
        1.2 Validation
 2 Software user interface
 3 Software documentation and maintenance
        3.1 Software requirements specification
        3.2  Requirements implementation
        3.3 User manual
        3.4 Maintenance and upgrade