ITU-R QUESTION 111-35-2001 Sharing criteria between the broadcasting-satellite service (sound and television) and the fixed service《广播卫星服务(声音和电视)与固定服务之间的共享标准》.pdf

1、QUESTION ITU-R 111-3/5*,*Sharing criteria between the broadcasting-satellite service(sound and television) and the fixed service(1990-1993-1995-2001)The ITU Radiocommunication Assembly,consideringa) that systems in the fixed service (FS) are widely employed throughout the world and makeextensive use

2、 of much of the radio-frequency spectrum;b) that the broadcasting-satellite service (BSS) is allocated in a number of bands on a primarybasis co-equally shared with the FS;c) that adoption of appropriate technical sharing are necessary to ensure that systems in the FScan operate without unacceptable

3、 levels of interference from the BSS operating in the same bands;d) that the use of the BSS in one region may generate interference into systems in the FS inother regions,decides that the following Questions should be studied1 What are the levels of interference from the BSS systems operating in the

4、 same bands thatare acceptable to systems in the FS?2 What are the constraints on the services that would be necessary and acceptable to facilitatesharing?further decides1 that the results of the above studies should be included in one or more Recommendation(s);2 that the above studies should be com

5、pleted by 2006.NOTE 1 “Systems in the fixed service” in this Question include fixed wireless access systems(both fixed-based technology and mobile-derived technology).NOTE 2 See Recommendations ITU-R F.760 and ITU-R F.1338._* This Question should be brought to the attention of Radiocommunication Study Group 6 (WP 6S).* Former Question ITU-R 111-3/9.