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ITU-R Working Party 4A, Rio, September 1996
Document WP 4A/85: Frequency sharing between a non-GSO FSS network and a GSO FSS network.
Document WP 4A/101: Interference between two NGSO FSS networks.
Document WP 4A/109: Simulation of 'in-line' interference between the feeder links of four separate Non-GSO MSS Constellations at 5/7 GHz (Leo-C, LEO-D, LEO-E and LEO-F).

ITU-R Working Party 4A, Geneva, January 1997
Document WP 4A/184: Mitigating Interference between NGSO FSS Networks and GSO FSS Networks by the NGSO Satellite Diversity Technique.
Document WP 4A/190: Statistics of PFD of interference from NGSO satellite - minus - receive antenna isolation of victim GSO earth station.
Document WP 4A/209: Further results of computation of statistics of interference between GSO FSS networks and NGSO FSS networks
Document WP 4A/235: Consideration of Spectrum Sharing in the 5150 to 5250 MHz band between feeder up-links of NGSO MSS Systems and EESS (active) Space Stations
Document WP 4A/237: Assessing the impact of pulsed mode radar interference levels produced by earth exploration satellite services (EESS) satellite at LEO-F MSS Feeder Link Up-links at 5 GHz.
Information Document: Simulation Software in ITU Working Parties

ITU-R Working Party 4-9S, Geneva, January 1997
Document WP 4-9S/43: Down-link PFD limits for non-geostationary Fixed Satellite Service Systems in the 18.9 to 19.3 GHz Band
Document WP 4-9S/54: Impact of satellite diversity on the statistics of NGSO FSS Earth Station antenna elevation angles

ITU-R Joint Working Party 7-8R, Cleveland, March 1997
Document JWP 7-8R/96: Consideration of spectrum sharing in the 5150-5250 MHz band between feeder up-links of NGSO MSS Systems and EESS (Active) Space Stations

ITU-R Joint Rapporteur Group 8D-9D, Geneva, January 1997
Document JRG 8D-9D/25: Initial Performance Assessment Approach to the Consideration of the Robustness of FS systems with Diversity in a Non-GSO MSS Interference Environment

Conference Preparatory Meeting for WRC 97, Geneva, May 1997
Document CPM97/53: Effect of NGSO Satellite Diversity on interference to the Fixed Service
Document CPM97/59: Feasibility of sharing of the 1698 - 1710 MHz band between the Meteorological Satellite Service (space to Earth) and the Mobile Satellite Service (Earth to space)
Document CPM97/78: Interference to a NGSO FSS Network from Multiple GSO FSS networks

ITU-R Working Party 7C, Geneva, June 1997
Document 7C/151: Feasibility of sharing of the 1698-1710 MHz band between the Meteorological Satellite Service (Space to Earth) and the Mobile Satellite Service (Earth to space).

ITU-R Working Party 4A, Geneva, March 1998
Document WP 4A/18: Frequency Sharing between two inhomogeneous NGSO FSS networks.
Document WP 4A/27: Study to evaluate sharing between NGSO and GSO FSS Systems in the 10-14 GHz bands and to demonstrate the effectiveness of simulation in verifying sharing feasibility
Document WP 4A/55: Frequency band sharing between Geostationary FSS/BSS networks and the non-geostationary SkyBridge system.

ITU-R Joint Task Group 4-9-11, Geneva, March 1998
Document JTG 4-9-11/14: Frequency Sharing between two inhomogeneous NGSO FSS networks.
Document JTG 4-9-11/24: Study to evaluate sharing between NGSO and GSO FSS Systems in the 10-14 GHz bands and to demonstrate the effectiveness of simulation in verifying sharing feasibility
Document JTG 4-9-11/35: Frequency band sharing between Geostationary FSS/BSS networks and the non-geostationary SkyBridge system.

ITU-R Joint Task Group 4-9-11, Toulouse, July 1998
Document JTG 4-9-11/106: Minimum data requirements needed to simulate impact of NGSO systems on GSO systems operating co-frequency in the bands where provisional limits were adopted in Resolution 130.
Document JTG 4-9-11/107: Simulation results of interference from a NGSO system into a Region 2 GSO BSS System
Document JTG 4-9-11/112: MEO altitude NGSO system - Sensitivity to provisional Ka band EPFD limits
Document JTG 4-9-11/127: Cumulative effect of the interference generated by several NGSO FSS systems into a GSO system operating in the bands 10.7-11.7 GHz, 11.7-12.2 GHz in region 2, 12.2-12.5 GHz in region 3 and 12.5-12.75 GHz in regions 1 and 3
Document JTG 4-9-11/137: Frequency sharing between NGSO FSS and GSO FSS around 12 GHz
Document JTG 4-9-11/141: Suitability of the concept of Aggregate PFD (APFD) as defined in S22.5C.1 (WRC-97) for the bands 27.5-28.6 GHz and 29.5-30.0 GHz
Document JTG 4-9-11/180: Down-link interference between non-homogeneous NGWSO systems operating in the 19.7-20.2 GHz band
Document JTG 4-9-11/193: EPFD and APFD Validation Software
Document JTG 4-9-11/202: Simulation of FS system subject to interference from NGSO FSS systems: comparison of simulation tools and impact of height of FS receiver on results.

ITU-R Joint Rapporteur Group 8D-9D, London, September 1998
Document JRG 8D-9D/4: SCP Development and Validation Issues
Document JRG 8D-9D/5: Simulation of FS Systems subject to interference from NGSO MSS Systems: Comparison of Simulation Tools

ITU-R Working Party 4A, Geneva, October 1998
Document WP 4A/73: Report of the meeting of Working Party 4A of Radiocommunication Study Group 4 (Geneva, 25th February - 6 March 1998)
Document WP 4A/127: Sharing between multiple non-GSO systems and GSO FSS systems in the 10-14 GHz band
Document WP 4A/130: An analytical method for assessing interference in interference environment involving NGSO networks
Document WP 4A/131: Frequency sharing between NGSO FSS Systems in the bands 18.8-19.3 GHz and 28.6-29.1 GHz.
Document WP 4A/135: Studies pertaining to Quasi-geostationary satellite characteristics
Document WP 4A/145: Impact of the need to avoid main beam to main beam interference on the number of NGSO FSS systems able to share frequency
Document WP 4A/147: Sharing between non-GSO and GSO FSS systems in the 10-14 GHz bands
Document WP 4A/148: Working document towards a draft new recommendation - a satellite - based reference for NGSO sharing
Document WP 4A/178: Working document - implementation of the GSO arc avoidance
Document WP 4A/183: Interference between multiple NGSO FSS Systems operating in the 10 - 14 GHz frequency band

ITU-R Joint Task Group 4-9-11, Long Beach, January 1999
Document JTG 4-9-11/252: Short term interference into a GSO Earth Station caused by several NGSO FSS Systems using inhomogeneous orbits
Document JTG 4-9-11/289: A Satellite Based reference for NGSO Sharing
Document JTG 4-9-11/293: USAMEO-1 NGSO System: EPFD Interference into GSO's
Document JTG 4-9-11/294: Impact of inclusion of satellite receive antenna pattern in APFD definition of S22.5 (WRC-97) for the 30 GHz Band
Document JTG 4-9-11/299: Impact of considering passive satellites in algorithm for software to calculate EPFD
Document JTG 4-9-11/310: Downlink interference between non-homogeneous NGSO systems operating in the 19.7-20.2 GHz band: Update
Document JTG 4-9-11/317: Effects of NGSO EPFD, APFD limits on Quasi-Geostationary Satellite System - Revised
Document JTG 4-9-11/325: Software Group of the JTG 4-9-11: Function description of software for use by the BR in checking compliance of non-GSO FSS systems with APFD and EPFD limits.
Document JTG 4-9-11/330: Interference into GSO networks from a large number of NGSO systems
Document JTG 4-9-11/334: Impact of NGSO FSS systems on GSO FSS networks operating in slightly inclined orbits
Document JTG 4-9-11/336: NGSO Interference protection requirements for 30/20 GHz band GSO systems employing adaptive coding as a fade counter measure
Document JTG 4-9-11/337: Factors affecting the maximum single entry permissible interference from a NGSO FSS system into a GSO network

ITU-R Working Party 7C, Geneva, February 1999
Document WP 7C/120: Impact of LEO-MSS Downlink out of band emissions below 406 MHz on the primary service allocated in the upper adjacent band: 406-406.1 MHz: COSPAS-SARSAT System
Document WP 7C/127: Sharing between spaceborne passive sensors and GEO, HEO, and LEO satellites in the Fixed Satellite Service in the 18.6-18.8 GHz Band.

ITU-R Working Party 9D, Geneva April 1999
Document WP 9D/130: Sharing between the Fixed Service and other Services in the
31.8 - 33.4 GHz band

ITU-R Working Party 4A, Geneva, April-May 1999
Document WP 4A/280: Development of EPFD Limits for NGSO systems operating in the 10.7 to 12.75 GHz Band
Document WP 4A/294 Downlink interference between non-homogeneous NGSO Systems operating in the Ka band: update
Document WP 4A/304 Proposed addition to Recommendation ITU-R 1257
Document WP 4A/336 Simulation results of EPFD(is), interference from NGSO constellations to a GSO satellite in the 10.7 - 11.7 GHz and 12.5 - 12.75 GHz bands and commentary on proposed aggregate EPFD limits
Document WP 4A/339 Short term interference into a GSO Earth Station caused by several NGSO FSS Systems using inhomogeneous orbits
Document WP 4A/341 Liaison Statement to Working Parties 4A and 4-9S
Document WP 4A/348 USAMEO-A NGSO System EPFD Interference into GSOs
Document WP 4A/362 Aggregation of interference from multiple non-GSO FSS systems into GSO FSS Systems operating in the 10.7 to 12.75 GHz band
Document WP 4A/370 Working Document towards a Draft New Recommendation - A Satellite Based Reference for NGSO Sharing
Document WP 4A/387 Simulation of frequency sharing between heterogeneous NGSO FSS systems in the bands 18.8-19.3 and 28.6-29.1 GHz
Document WP 4A/397 Protection of GSO Inclined orbit operation from interference caused by non-GSO systems
Document WP 4A/409 Average building attenuation for indoor to satellite interference propagation at 5 GHz
Document WP 4A/411 Projected population of Hiperlan devices

ITU-R Joint Working Party 10-11S, Geneva, May 1999
Document WP 10-11S/162: Development of EPFD Limits for NGSO Systems operating in the 11.7-12.75 GHz BSS Bands

ITU-R Joint Task Group 4-9-11, Geneva, May 1999
Document JTG 4-9-11/405 Draft New Recommendation: Functional Description to be used in developing software tools for determining conformity of non-GSO FSS networks with Power Flux Density limits contained in Article S22 of the Radio Regulations

ITU-R Joint Expert Group 4A-8A-9B, Ottawa, July 1999
Document JEG 4A-8A-9B/1: Anticipated number of RLAN devices
Conference Preparatory Meeting for WRC 2000, Geneva, November 1999
Document CPM99-2/46: Proposed Amendments to Draft CPM Report: Annex 1 to Chapter 3 (Agenda Item 1.13: non-GSO FSS)
Document CPM99-2/48: Proposed Amendments to Draft CPM Report: Annex 1 to Chapter 3 (Agenda Item 1.13: non-GSO FSS)
Document CPM99-2/122: Proposed Amendments to Chapter 3 of the CPM Report: Degree of Conservatism build in the BR Validation Software and its impact on the selection of the EPFD limits.

ITU-R Working Party 4A, Geneva, February 2000
Document WP 4A/453: Working Document towards a Draft Revision to Recommendation ITU-R S.1323 to add a definition of a single entry interference criterion to be used during coordination between two non-GSO FSS systems
Document WP 4A/460: Editorial changes to the JTG Software Specification
Document WP 4A/477: Analytical Method for assessing the statistics of interference between non-GSO satellite networks and GSO satellite networks, Fixed Service systems or other non-GSO satellite networks
Document WP 4A/483: Accurate modelling of multiple non-GSO FSS systems in the 10-14 GHz bands, and their aggregate EPFD(down) into GSO FSS Earth Stations
Document WP 4A/526: Results of simulations of interference between NGSO FSS Systems.