1. Reasons for DFS Requirement in Europe
Month 1998
doc.: IEEE /xxx
July 2001
Reasons for DFS Requirement in Europe
Mika Kasslin, Nokia
Mika Kasslin, Nokia
John Doe, His Company

2. Discussions in the 5 GHz band
Month 1998
doc.: IEEE /xxx
July 2001
Discussions in the 5 GHz band
MHz
Aeron.radionav.
FSS
Radioloc.
EESS
Space sc.
Marit.radionav.
Meterologic.radars
FSS E-to-S
RTTT FS MS
ISM
RLAN, 200 mW, indoor
RLAN, 1W, outdoor
General SRD,
25 mW
Existing prim.allocations
Current license-exempt bands in Europe
Current license-exempt bands in the US
U-NII 250mW
U-NII 50mW
Current license-exempt bands in Japan
U-NII 200mW
Mika Kasslin, Nokia
John Doe, His Company

3. Reasons for DFS requirement in Europe
Month 1998
doc.: IEEE /xxx
July 2001
Reasons for DFS requirement in Europe
Equipment shall employ a DFS mechanism to detect interference from other systems and therefore is able to avoid co-channel operation with other systems, notably radar systems
DFS wil also be required to provide a spread of the loading across a minimum of 14 channels to further facilitate sharing with satellite services
The only implied technical requirement is that
DFS Must be able to detect Radars and
change channel accordingly
Satellite sharing is fasilitated as a ”side effect”
Mika Kasslin, Nokia
John Doe, His Company