ITU-R QUESTION 2335-2002 Criteria for sharing between stations in the fixed service and stations in the aeronautical mobile service in bands between about 37 GHz and 50 GHz《在航空运输服务.pdf

1、QUESTION ITU-233/5*,*Criteria for sharing between stations in the fixed service and stations in theaeronautical mobile service in bands between about 37 GHz and 50 GHz(2002)The ITU Radiocommunication Assembly,consideringa) that the fixed service (FS) shares certain frequency bands with the mobile se

2、rvice (MS)(including aeronautical) between about 37 GHz and 50 GHz;b) that geographical separation is one method to provide mutual protection of systems in thefixed and mobile services when sharing these bands;c) that it is necessary to provide guidance for determining separation distances required

3、toprotect systems in the fixed service (FS) from emissions of stations, particularly aircraft stations, inthe MS sharing the same frequency bands,decides that the following Questions should be studied1 What are the preferred criteria for sharing the same frequency in bands between about37 GHz and 50

4、 GHz between systems in the FS and aircraft stations in the MS?2 What is the preferred methodology for determining separation distances required to protectsystems in the FS from emissions of aeronautical stations in the MS sharing the same frequencyband in bands between about 37 GHz and 50 GHz?3 Wha

5、t mitigation techniques are available to the FS to reduce its susceptibility tointerference from emissions of aeronautical stations in the MS?further decides1 that the results of the above studies should be included in one or more Recommendation(s)or revisions of existing ones;2 that the above studies be completed by 2005.The category of this Question was changed from S1 to S2._* This Question should be brought to the attention of Radiocommunication Study Group 8.* Former Question ITU-R 233/9.