To derive a general methodology for “short term” criteria for Fixed service and evaluate the relationship between "long term" and "shortterm" protection criteria and FDP (Fractional Degradation of Performance).

The report should provide general guidance / methodology on how to derive appropriate “short term” protection criteria for FS for any sharing and compatibility studies involving FS.

This report is expected to include following;

• Evaluation of generic objective in absence of detailed information on power distribution of the interferer.
• Demonstration of the application of this methodology by giving some examples for “short term”criteria for different FS bands.
• Evaluation of the impact of different parameters (e.g. ATPC, rain or multipath fading,error performance and availability objectives) on “short term” criteria and FDP.