CONTENTS

Policy on Intellectual Property Right (IPR)
 1 Introduction
 2 Technical characteristics
 3 Sharing study methodology
 1 HAPS in the fixed service
 2 Overview of other fixed service systems in the bands 47.2‑47.5 GHz and 47.9‑48.2 GHz
 3 Interference analysis
        3.1 Interference between HAPS user terminals and conventional systems in the fixed service (Scenario 1)
                  3.1.1 Interference analysis based on a single interference source
                  3.1.2 Interference analysis based on multiple sources
                  3.1.3 Interference from conventional systems in the fixed service into HAPS user terminals
                  3.1.4 Interference from HAPS user terminals into conventional systems in the fixed service
        3.2 Interference between HAPSs and conventional fixed service systems (Scenario 2)
                  3.2.1 Interference from conventional systems in the fixed service into a HAPS
                  3.2.2 Interference from a HAPS into a conventional fixed service system
 4 Mitigation techniques
        4.1 Introduction
        4.2 Improvement of radiation patterns
        4.3 Increasing the minimum elevation angles of the HAPS user terminals
        4.4 DCA
        4.5 Environmental screening
        4.6 ATPC
 5 Conclusion