CONTENTS

Policy on Intellectual Property Right (IPR)
1���� Introduction
2���� Glossary
3���� Allocation information in the 6 440-6 520 MHz frequency range
4���� Technical characteristics
������� 4.1���� Technical and operational characteristics of HAPS systems operating in the 6 440‑6 520 MHz
������� 4.2���� Technical and operational characteristics of fixed service operating in the 6 440‑6 520 MHz
������� 4.3���� Technical and operational characteristics of fixed satellite service (Earth-to-space) operating in the 6 440-6 520 MHz
������� 4.4���� Technical and operational characteristics of mobile service operating in the 6 440‑6 520 MHz
������� 4.5���� Technical and operational characteristics of passive microwave sensors operating in 6 440-6 520 MHz
����������������� 4.5.1���� Background
����������������� 4.5.2���� Specific EESS (passive) considerations
������� 4.6���� Technical and operational characteristics of radio astronomy operating in 6 650‑6 675.2 MHz
�5���� Sharing and compatibility studies
Annex 1� (FS)� Sharing and compatibility of fixed service and HAPS systems� operating in the 6 440-6 520 MHz frequency ranges
�1���� Technical analysis
������� 1.1���� Summary
������� 1.2���� Analysis
����������������� 1.2.1���� Impact from transmitting HAPS into FS receiving stations
����������������� 1.2.2���� Impact from transmitting FS stations into HAPS receiving ground station
2���� Summary and analysis of the results of studies
������� 2.1���� Impact from transmitting HAPS s into FS receiving stations
������� 2.2���� Impact from transmitting FS stations into HAPS receiving ground stations
Annex 2� (FSS (Earth-to-space))� Sharing and compatibility of fixed satellite service (Earth-to-space) and HAPS systems operating in the 6 440-6 520 MHz frequency range
�1���� Technical Analysis
������� 1.1� ���Summary
������� 1.2���� Analysis
����������������� 1.2.1���� Impact from transmitting HAPS into FSS receiving space station
����������������� 1.2.2���� Impact from transmitting FSS Earth station into HAPS receiving ground station
2���� Summary and analysis of the results of studies
������� 2.1���� Impact from transmitting HAPS into FSS receiving space station
������ �2.2���� Impact from transmitting FSS Earth station into HAPS receiving ground stations
Annex 3� (MS)� Sharing and compatibility of MS and HAPS systems� operating in the 6 440‑6 520 MHz frequency range
�1���� Technical Analysis
������� 1.1���� Summary
������� 1.2���� Analysis
����������������� 1.2.1���� Impact from transmitting HAPS into MS receiving stations
����������������� 1.2.2���� Impact from transmitting MS station into HAPS receiving ground stations
2���� Summary and analysis of the results of studies
������� 2.1���� Impact from transmitting HAPS into MS receiving stations
������� 2.2���� Impact from transmitting MS station into HAPS receiving ground stations
Annex 4� (EESS (passive))� Sharing and compatibility of EESS (passive) and HAPS systems� operating in the 6 440-6 520 MHz frequency range
�1���� Technical analysis
������� 1.1 ����Summary
������� 1.2���� Analysis
����������������� 1.2.1���� Study A
����������������� 1.2.2���� Study B
2���� Summary and analysis of the results of studies
Annex 5� (Radio astronomy)� Sharing and compatibility of radio astronomy in the band 6 650-6 675.2 MHz and HAPS systems operating in the 6 440-6 520 MHz frequency range
�1���� Technical analysis
������� 1.1���� Summary
������� 1.2���� Analysis
����������������� 1.2.1���� HAPS system characteristics
����������������� 1.2.2���� Results
2���� Summary and analysis of the results of studies