Policy on Intellectual Property Right (IPR)
Annex 1 The use of DFS in WAS including RLANs for the purpose of protecting
the radiodetermination service in the 5 GHz band
1 Introduction
1.1 DFS
1.2 Objective of the use of DFS with respect to radars
2 DFS performance requirements
2.1 Detection requirements
2.2 Operational requirements
2.3 Response requirements
2.4 Summary of the requirements
Annex 2 Radar detection and example of associated DFS procedures
1 Definitions
2 Procedures
2.1 Finding an initial available channel
2.2 Starting operation
2.3 Monitoring the operating channel
3 Implementation aspects
3.1 Radar signal detection
3.1.1 Detection of frequency hopping radars
3.1.2 Threshold and antenna gain
3.1.3 Spurious emissions
3.2 Channel move time
Annex 3 Use of characteristics of radiolocation, maritime radionavigation
and meteorological radars
Annex 4 Parameters and methodology to calculate the probability of detection
of radiodetermination systems by WAS including RLAN devices using DFS in the
5 GHz band during in-service monitoring
Annex 5 Interference assessment using link budget calculations involving a
single WAS device and radiodetermination systems in the 5 GHz band
1 Background
2 Methodology
3 Calculation based on link budget with radars from Recommendation ITU‑R M.1638
4 Calculation based on link budget for some new radars
5 Possibility of a variable detection threshold
6 Influence of the WAS architecture on the detection threshold
Appendix 1 to Annex 5 Calculation
of detection threshold based on link budget for the radars of Recommendation
ITU-R M.1638
Appendix 2 to Annex 5 Calculation of detection threshold based on link budget
for new radar deployed by some administrations in Region 1
Annex 6 Parameters and methodology for conducting aggregate interference
studies involving WAS including RLANs and radiodetermination systems in the 5
GHz band
Appendix 1 to Annex 6
Appendix 2 to Annex 6 WAS antenna patterns
Annex 7 Interference assessment results analysis and recommendation on DFS
threshold values