1、STD-CEPT T/R 22-03 E-ENGL 1991 = 232b414 0014b45 285 T/R 22-03 E Disiribubon: B 9“s“ 1 Recommendation TIR 22-03 (Athens 1990) PROVISIONAL RECOMMENDED USE OF THE FREQUENCY RANGE 54.25-66 GHz BY TERRESTRIAL FIXED AND MOBILE SYSTEMS Recommendation proposed by the “Frequency Management“ Working Group T/
2、WG 18 (FM) Text of the Recommendation adopted by the “European Radiocommunications Committee ERC): The European Conference of Postal and Telecommunications Administrations, considering that a) CER has a long-term objective to harmonise the use of frequencies throughout Enrope, b) the development of
3、the use of the band 54-66 GHz requires urgent action on a provisional basis, c) a number of European research programmes require harmonised frequency allocations in the range 54-66 GHz, d) the propagation characteristics of the 54-66 GHz band are ideally suited to short-range, high-capacity fixed an
4、d mobile links and radiolocation systems, e) the anticipated developments in large-scale mobile networks will require large numbers of short-range links in the supporting inastnicture, f) the high-fiequency re-use achievable in the oxygen-absorption band reduces the requirement for sophisticated fie
5、quency planning techniques and offers the possibility of a pan-European deregulated telecommunications environment for various low-power, low-cost, short-range applications, g) a number of new or existing systems could operate successfully in the range 54-66 GHz, thus relieving amgestion and reduchg
6、 the demand for spectrum in the lower fiequency bands, h) CER should give guidance on the available frequency bands to organisations developing standards for radio systems in the millimetric bands, i) there is an urgent need to identifj and harmonise civil requirements in the fiequency range 54-66 G
7、Hz, noting that 1. as the bands allocated to terrestrial fixed and mobile services in the range 54.25-66 GHz are shared with the inter-satellite service and the passive earth exploration-satellite and space research services, sharing criteria between space and terrestrial systems might be required,
8、despite the large bandwidth currently allocated for terrestrial fixed and mobile services, additional spectrum may be required in the future but: - footnote F2R 9M prohibits ail emissions in the bands 51.4-54.25 GHz, 58.2-59 GHz and 64-65 GHz, and - footnote RR 906 urges Administrations to take all
9、practicable steps to protect radio astronomy observations fiom harmful interference in the bands 51.4-54.25 GHz, 58.2-59 GHz and 64-65 GHz, 2. recommends that 1. Administrations should follow the provisional Recommendation for use of the frequency range 54.25- 66 GHz by terrestrial fixed and mobile
10、systems as given in Annex 1, Table 2, CER develops necessary sharing criteria between the services authorised by the Radio Regulations.“ 2. Edition of January 31, 1991 STD.CEPT T/R 22-03 E-ENGL 1991 m 232b4L4 00LLib4b LLL m WP O0 mm I WP BB 8 mm 2 0 W W 3 13 in v 3 13 d W 3 0 m in $i 13 c? Cu in 3 2
11、 $i 0 in in 13 t d in 2326414 0034334 995 H BEL CZE D DNK E Tal 22-03 Provisional recommended use of the frequency range 54.25-66 GHz by terrestrial fixed and mobile systems study Yes Planned Yes Yes No Adm I Imp1 I Remarks AUT I Under I I POR ROU Planned Yes ISUI I Yes I SVN Planned TUR Yes Regulation on radio frequency bands in the Republic of Slovenia
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