CONTENTS

Policy on Intellectual Property Right (IPR)
�1���� Introduction
�2���� Allocation information in the 27.9-28.2 GHz and 31.0-31.3 GHz frequency ranges
�3���� Technical characteristics
������� 3.1���� Technical and operational characteristics of HAPS systems operating in the 27.9‑28.2 GHz and 31.0-31.3 GHz frequency ranges
������� 3.2���� Technical and operational characteristics of fixed service operating in the 27.9‑28.2 GHz and 31.0-31.3 GHz frequency ranges
������� 3.3���� Technical and operational characteristics of Fixed Satellite service (Earth-to-space) operating in the 27.9-28.2 GHz frequency range
������� 3.4���� Technical and operational characteristics of Mobile service operating in the 27.9‑28.2 GHz and 31.0-31.3 GHz frequency ranges
��������� ��������3.4.1���� Receiver characteristics of Mobile service operating in the 27.9-28.2 GHz range
����������������� 3.4.2���� Antenna Pattern Model of Mobile service operating in the 27.9-28.2 GHz range
������� 3.5���� Technical and operational characteristics of Earth Exploration-Satellite service (passive) operating in the adjacent band 31.3-31.8 GHz
������� 3.6���� Technical and operational characteristics of Radio Astronomy service operating in the adjacent band 31.3-31.8 GHz
����������������� 3.6.1���� Protection criteria
����������������� 3.6.2���� Percentage of data-loss (Recommendation ITU-R RA.1513)
����������������� 3.6.3���� Radio astronomy stations operating at 31.3-31.8 GHz
������� 3.7���� Propagation models for sharing and compatibility studies in the 27.9-28.2 GHz and 31.0-31.3 GHz frequency range
�4���� Sharing and Compatibility Studies
�5���� Abbreviations and acronyms
Annex 1� Sharing and compatibility of fixed service and HAPS systems operating in the 27.9-28.2 GHz and 31.0-31.3 GHz frequency ranges
�1���� Technical analysis
������� 1.1���� Study A
����������������� 1.1.1���� Impact of transmitting HAPS into receiving FS station (31-31.3 GHz)
���������������� �1.1.2���� Impact from transmitting FS station into HAPS receiving ground stations in the band 31-31.3 GHz and comparison with the impact from transmitting FS into FS receiving station
������� 1.2���� Study B
����������������� 1.2.1���� Impact from transmitting HAPS ground station into FS receiving station in the band 31-31.3 GHz and comparison with the impact from transmitting FS to receiving FS stations
����������������� 1.2.2���� Impact from transmitting FS station into receiving HAPS in the band 31‑31.3 GHz
������� 1.3���� Study C
����������������� 1.3.1���� Impact from transmitting HAPS into FS receiving station in the band 27.9‑28.2 GHz
����������������� 1.3.2���� Impact from transmitting FS station into receiving HAPS ground station in the band 27.9-28.2 GHz and comparison with the impact from transmitting FS into receiving FS station
�2���� Summary and analysis of the results of studies
2.1��������� Sharing and compatibility of fixed service and HAPS systems operating in the 27.9-28.2 GHz frequency range
2.2��������� Sharing and compatibility of FS and HAPS systems operating in the 31.0‑31.3 GHz frequency range
Annex 2� Sharing and compatibility of Fixed Satellite (Earth-to-space) service and HAPS systems operating in the 27.9-28.2 GHz frequency ranges
1������������� Technical analysis
1.1��������� Study A
1.1.1����� Summary
1.1.2����� Introduction
1.1.3����� Methodology and results � FSS E/S into HAPS CPE (28 GHz)
1.2��������� Study B: Impact from transmitting HAPS into FSS receiving space station
1.2.1����� Aggregate impact from the transmitting HAPS into receiving FSS space station
1.2.2����� Impact from transmitting FSS Earth stations into receiving HAPS ground station in the band 27.9-28.2 GHz
1.2.3����� Summary and analysis of the results of study B
1.3��������� Study D
1.3.1����� Methodology �HAPS Platform to FSS satellite
1.3.2����� Methodology FSS Earth Station to HAPS CPE/Gateway
1.3.3����� Results of studies
1.4��������� Study E
1.4.1����� Introduction
1.4.2����� FSS Earth station parameters
1.4.3����� HAPS systems parameters
1.4.4����� HAPS interference criteria
1.4.5����� Apportionment of interference allowance
1.4.6����� Methodology for sharing studies
1.4.7����� Results of interference from FSS transmit earth station into HAPS Receive Gateway for the 27.9-28.2 GHz band
1.4.8����� Conclusion
2������������� Summary and analysis of the results of studies
2.1��������� Impact of transmitting HAPS into receiving FSS Space station
2.2��������� Impact of transmitting FSS Earth station into receiving HAPS ground station
Annex 3 (MS)� Sharing and compatibility Mobile service and HAPS systems operating in the 27.9-28.2 GHz and 31.0-31.3 GHz frequency ranges
1������������� Technical analysis
1.1��������� Study A
1.1.1����� Summary
1.1.2����� Impact of transmitting HAPS into receiving Mobile Service stations
Assumptions on the UE deployment considered for this study
1.1.3����� Impact of transmitting Mobile Service stations impact into receiving HAPS ground stations
����������������� 1.1.4���� Summary and analysis of study A
������� 1.2���� Study B
����������������� 1.2.1���� Summary
����������������� 1.2.2���� Interference Scenarios from HAPS to Mobile Base Station and User Equipment
����������������� 1.2.3���� Methodology to calculate interference and simulation procedure
Simulation procedure:
����������������� 1.2.4���� Study results
����������������� 1.2.5���� Summary and analysis of the results of study B
������� 1.3���� Study C
����������������� 1.3.1���� Summary
����������������� 1.3.2���� PFD Mask
����������������� 1.3.3���� Deterministic study
Methodology to calculate the level interference to an MS receiver:
Simulation procedure:
����������������� 1.3.4���� Monte-Carlo study
����������������� 1.3.5���� Summary and analysis of the results of study D
�2���� Summary and analysis of the results of studies
������� 2.1���� Impact of transmitting HAPS into receiving mobile stations
������� 2.2���� Impact of transmitting HAPS ground stations into receiving mobile stations
�1���� Technical analysis
������� 1.1���� Study A
����������������� 1.1.1���� Background
����������������� 1.1.2���� Earth exploration-satellite service (passive) protection criteria
����������������� 1.1.3���� Description of analysis methodology and simulation parameters
Description of Simulation for Dynamic Analysis
����������������� 1.1.4���� Uplink analysis of HAPS and EESS (passive) sensors
UL Static Analysis:
Recommendation ITU-R RS.1861 Sensor G2
Recommendation ITU-R RS.1861 Sensor G3- 1 GW, 4 CPE
Recommendation ITU-R RS.1861 Sensor G3- 2 GW, 24 CPE
����������������� 1.1.5���� Downlink analysis of HAPS and EESS (passive) sensors
����������������� 1.1.6���� Uplink and Downlink Analysis Results for Study A
������� 1.2���� Study B: Impact of transmitting HAPS into EESS (passive) receivers in the adjacent band
����������������� 1.2.1���� Maximum HAPS station e.i.r.p. density (HAPS to GW) above �4.5� elevation
����������������� 1.2.2���� Proposed maximum HAPS e.i.r.p. density towards EESS satellite receivers
������� 1.3���� Study C (system 1 broadband HAPS specific application ground to HAPS)
����������������� 1.3.1���� Summary and analysis of the results of study C
������� 1.4���� Study D: HAPS ground CPE to HAPS
����������������� 1.4.1���� Methodology used
���������������� �1.4.2���� EESS (passive) parameters used
����������������� 1.4.3���� HAPS parameters used
����������������� 1.4.4���� Calculation results
����������������� 1.4.5���� Summary and analysis of the results of study D
�2���� Summary and analysis of the results of studies
������� 2.1���� Impact from transmitting HAPS into EESS (passive)
������� 2.2���� Impact from transmitting HAPS ground stations into EESS (passive)
Annex 5� Compatibility of Radio Astronomy service in the adjacent band 31.3-31.8 GHz and HAPS systems operating in the 31.0-31.3 GHz frequency range
�1���� Technical Analysis
������� 1.1���� Study A: impact from HAPS system 1 ground stations into RAS
����������������� 1.1.1���� Interference Scenario
����������������� 1.1.2� ���Summary and analysis of the results of Study A
������� 1.2���� Study B: impact from transmitting HAPS into RAS
����������������� 1.2.1���� The HAPS system
�2���� Summary and analysis of the results of studies
������� 2.1���� Impact from transmitting HAPS ground stations into RAS
������� 2.2���� Impact from transmitting HAPS into RAS