1、266 STD-ITU-R RECMN SM.855-L-ENGL 3777 1 Li855212 0534338 282 = Rec. ITU-R SM.855-1 RECOMMENDATION ITU-R SM.855-1 MULTI-SERVICE TELECOMMUNICATION SYSTEMS (Question ITU-R 45/1) (1992-1997) The ITU Radiocommunication Assembly, considering that the radio spectrum is used more efficiently when multiple
2、users within the same part of the spectrum can that the increasing requirements of new radio services can only be realized through the implementation of new that Recommendation 65 of the World Administrative Radio Conference (Geneva, 1979) (WARC-79) a) operate at the same time without interference;
3、b) technologies; cl recognizes that the advances of new technologies increase band utilization; d) waveform; that a multi-service system provides for more than one type of radiocommunication service within the same e) systems; f) that the interference between single service and multi-service systems
4、 can be calculated by using electromagnetic compatibility procedures; 8) . that it is possible to identify the sharing potential of multi-service systems with other users, in a common allocated band, based on electromagnetic compatibility analysis, that multi-service telecommunication systems create
5、 no unusual interference problems to single service recommends 1 radio spectrum; 2 waveform of the multi-service systems and other systems. that, when appropriate, multi-service telecommunication systems should be used to obtain efficient use of the that the spectrum sharing should be based on the electromagnetic compatibility analysis between the signal
